Turnover device

Abstract

An overturning device (1) for overturning a tubular pile (FP, CP), the overturning device comprising: a base element (20) for insertion into an end of the tubular pile and for extending along an interior of the tubular pile; a plurality of connecting elements connected to the base element and configured to engage with one or more inner surfaces of the tubular pile; and a lifting arm (30) for coupling the turnover device to a lifting element (H); wherein the lift arm is rotatably coupled to the base element, the lift arm being rotatable relative to the base element about a first axis (A1), and wherein the first axis is the central axis of the base element and, in use, is substantially parallel to the central axis of the tubular pile. The invention further relates to a method for overturning the tubular pile by using the device.

Description

[0001] The present invention generally relates to a flipping device and a method of flipping a tubular pile. Due to their length, tubular piles, such as monopiles, are typically transported in a horizontal orientation. This means that, when deployed in a vertical orientation, the tubular piles must be flipped. Clearly, due to the size and weight of the tubular piles, such an operation is complex, time-consuming, and expensive in terms of the capital cost and operating time of the equipment. Known types of tubular piles are tapered non-flanged piles with open ends without flanges and flanged piles with inwardly projecting flanges at one end. The process of flipping a flanged pile typically involves inserting a flipping tool into the flanged end of the pile and engaging a connecting element of the flipping tool with the flange such that the tubular pile is effectively lifted by gripping the flange. Flipping a non-flanged pile typically involves inserting a flipping tool into the narrowest end of the pile and using radially extending connecting elements that grip the inner surface of the pile in a frictional manner. Clearly, both of these flipping tools are large, complex to operate, and expensive to purchase, transport, and maintain.

[0002] In addition, both types of flipping tools exert significant pressure and bending forces at the location where the connecting element engages the pile. This can cause damage to the pile, for example, if the engagement is made at a defective or weaker part of the structure, such as at a welded location like a seam of the pile.

[0003] Sometimes, these flipping tools are used to deploy the pile to the ground into which the pile is to be driven. This means that the engagement between the pile and the flipping device achieved at the start of the flipping operation is also used during the deployment of the pile to the ground. Clearly, this can be sub-optimal because the flipping tool is inserted into the pile when the pile is horizontal, and thus aligning the flipping tool with the tubular pile can be challenging, for example, because the flipping tool is not centered with respect to the pile.

[0004] Therefore, it would be advantageous to overcome at least some of these limitations.

[0005] Accordingly, a first aspect of the present invention provides a flipping device for flipping a tubular pile, the flipping device comprising:

[0006] a base element for insertion into the end of the tubular pile and for extending along the interior of the tubular pile;

[0007] a plurality of connecting elements connected to the base element and configured to engage one or more inner surfaces of the tubular pile;

[0008] a lifting arm for coupling the flipping device to a lifting element;

[0009] Wherein, the lifting arm is rotatably coupled to the base element, and the lifting arm is capable of rotating relative to the base element about a first axis, wherein the first axis is the central axis of the base element and is substantially parallel to the central axis of the tubular pile in use.

[0010] Advantageously, the base element and the connecting element can rotate about the first axis to avoid the joint between the connecting elements being in a sub-optimal position in the pile, such as a welding position, or at least reduce the risk of the joint between the connecting elements being in a sub-optimal position in the pile, such as a welding position. Further advantageously, the base element and the connecting element can rotate about the first axis when inserted into the tubular pile to vertically align two of the connecting elements. This can help to center the flipping device in the pile because the joint of the vertically aligned connecting elements can be used to align the flipping device in the vertical direction. In addition, these vertically aligned connecting elements can first engage with the tubular pile to further help to center the flipping device in the tubular pile. Further advantageously, by rotating the base element and the connecting element about the first axis, the orientation of the pile can be changed during deployment. Thus, the orientation of the pile can be fine-tuned. This can be advantageous in controlling the orientation of the pile when the pile is lowered into the ground where it is to be driven. This can also be advantageous when the pile is connected to an upper part, such as a tower or a transition piece, and the pile and the upper part are connected together along their lengths, for example, by bolt connection or using a wedge connection, such that the first lower part of the pile is supported on the surface in an upright configuration and the second upper part is lowered onto the first lower part such that the second upper part and the first lower part can be bolted together. Rotating the second upper part about the first axis means that, for example, the connection holes in the first and second parts of the pile can be easily aligned for connecting the two parts together.

[0011] Each of the plurality of connecting elements is capable of moving in a radial direction. Each of the plurality of connecting elements is capable of moving to a radially retracted position. Advantageously, by inserting the base element when the connecting elements are in the radially retracted position, the base element and the connecting elements can be inserted into an end of the pile having an inner diameter smaller than the diameter at the position where the connecting elements engage with the pile. Further advantageously, this means that the flipping device can be adapted to be used with flanged piles and tapered, non-flanged piles. That is, this means that the flipping device can be adapted to be inserted into the flanged end of a flanged pile and into the narrowest end of a tapered, non-flanged pile.

[0012] The flipping device may include a mounting element. The lifting arm may be rotatably coupled to the base element via the mounting element. The mounting element may be rotatably coupled to the base element. The mounting element is capable of rotating relative to the base element about the first axis.

[0013] The lifting arm can rotate relative to the base element about a second axis. The second axis can be substantially perpendicular to the first axis.

[0014] Advantageously, the base element and the connecting element can rotate relative to the lifting arm about the second axis when the pile is horizontal, such that the tipping device is supported by the lifting element for inserting the base element and the connecting element into the end of the pile.

[0015] The lifting arm can be rotatably coupled to the mounting element. The lifting arm can rotate relative to the mounting element about the second axis.

[0016] The base element can include at least two interconnected concentric rings. The mounting element can extend through the center of the inner ring of the concentric rings. The mounting element can be rotatably coupled to the inner ring of the concentric rings. The mounting element can be supported by an axial bearing in the axial direction of the inner ring. The mounting element can be supported by at least two radial bearings in the radial direction of the inner ring. The at least two concentric rings can be interconnected by webs.

[0017] The base element can include three interconnected concentric rings. A plurality of connecting elements can be connected to the outer ring of the concentric rings and the intermediate ring of the concentric rings. The mounting element can extend through the center of the inner ring of the concentric rings. The mounting element can be supported by an axial bearing in the axial direction of the inner ring. The mounting element can be supported by at least two radial bearings in the radial direction of the inner ring. The mounting element can be rotatably coupled to the inner ring of the concentric rings. The outer ring and the intermediate ring of the concentric rings can be interconnected by a plurality of outer webs. The intermediate ring and the inner ring of the concentric rings can be interconnected by a plurality of inner webs.

[0018] Advantageously, providing a base element with concentric rings can improve operability, as the base element can have a high degree of axial symmetry, thereby allowing the base element and the connecting element to be used in a plurality of orientations about the first axis. Additionally, this can mean that the base element is substantially balanced about its central axis when its central axis is in a vertical orientation. This can reduce the power input required to rotate the base element about the first axis, even when the pile is suspended from the tipping device. Further advantageously, the connection between the connecting element and both the inner and outer rings can improve the stability of the tipping device during the tipping operation, as each connecting element will withstand the bending moment from the pile through its connection to both the inner and outer rings.

[0019] The tipping device can include a lifting arm drive device. The lifting arm drive device can be used to rotate the lifting arm about the second axis. The lifting arm drive device can be used to rotate the lifting arm relative to the base element about the second axis.

[0020] The lift arm drive means can be a linear actuator. The linear actuator can be pivotally connected to the lift arm at the first end. The linear actuator can be pivotally connected to the lift arm at the first end at a position spaced apart from the second axis. The linear actuator can be pivotally connected to the mounting element at the second end. The linear actuator can be pivotally connected to the mounting element at the second end at a position spaced apart from the first axis.

[0021] Advantageously, the base element and the connecting element can rotate about the second axis when the pile is horizontal for insertion into the pile.

[0022] The tipping device can include a drive means located between the mounting element and the base element. The drive means can be used to control the rotational movement of the base element relative to the mounting element about the first axis.

[0023] The drive means can include a pinion and a rack. The pinion can be rotatably mounted to the mounting element. There can be at least two pinions rotatably mounted to the mounting element. There can be three pinions rotatably mounted to the mounting element, wherein one of the pinions is an emergency gear, or a spare gear or a virtual gear. The rack can be provided on or in the base element. The tipping device can include a pinion rotation means, such as an electric motor, for rotating the pinion. The tipping device can include a plurality of pinion rotation means, such as electric motors, each for rotating a respective one of the pinions. Advantageously, these drive means allow for fine movement control or fine position control of the rotation of the base element relative to the mounting element.

[0024] Each connecting element may include a joint portion. The joint portion may include a coupling portion. The coupling portion may have a radially inward-facing coupling surface. Each connecting element may include a connecting portion. The connecting portion may include a radially outer portion. The radially outer portion may have a radially outward-facing coupling surface. The connecting portion may be movable. In use, the connecting portion is capable of moving relative to the tubular pile in the radial direction between a radially outer position and a radially inner position. In use, the connecting portion is capable of moving relative to the tubular pile in the radial direction between a radially outer position and a radially inner position so that the coupling surface of the joint portion abuts the coupling surface of the radially outer portion of the connecting portion. The coupling surface of the joint portion may abut the coupling surface of the radially outer portion of the connecting portion. Each connecting portion and the corresponding joint portion, i.e., each connecting element, is capable of moving in the radial direction. The connecting portion may include a first connecting means located at the radially outer end of each connecting portion. The first connecting means may be used for connection to an axial locking means. The axial locking means may be used for connection between the connecting portion and the joint portion. The axial locking means may be used for connection between the connecting portion and the joint portion for restricting the axial movement of the joint portion relative to the connecting portion. The base element may include a second connecting means. The base element may include a second connecting means for connection to an actuating means, the actuating means being capable of connection between the base element and the joint portion for moving the joint portion along the coupling surface of the connecting portion.

[0025] Advantageously, the same tipping device can be used with both flanged piles and non-flanged piles. That is, the first and second connecting means are arranged in the described manner such that when the tipping device is used with a flanged pile, the axial locking means allows the joint portion to be connected to the radially outer end of each connecting portion, and when the tipping device is used with a non-flanged tapered pile, the actuating means allows connection between each joint portion and the second connecting means on the base element. Thus, a more versatile tipping device is provided.

[0026] The coupling portion of the joint portion may be a tapered portion. The radial thickness of the tapered portion may be tapered. The radial thickness of the tapered portion may taper away from the side of the base element on which the lifting arm is located. The radial thickness of the radially outer portion of the connecting portion may be tapered. The radial thickness of the radially outer portion may taper towards the side of the base element on which the lifting arm is located.

[0027] Each connecting element may include two parallel connecting portions. Each engaging portion may include two parallel coupling portions. Each engaging portion may include two parallel tapered portions. The radial thickness of the tapered portions may be tapered. The radial thickness of the tapered portions may taper away from the side of the base element on which the lifting arm is located. The coupling portions or the tapered portions may each have a radially inwardly facing coupling surface. Each coupling surface of the engaging portion may abut the coupling surface of the radially outer portion of a corresponding one of the connecting portions of the connecting element. When the connecting portion is in the radially outer position, each coupling surface of the engaging portion may abut the coupling surface of the radially outer portion of a corresponding one of the connecting portions of the connecting element. Each connecting element may include a drive plate connected to the radially inner end of the connecting portion or each connecting portion. Each connecting element may include a drive shaft. Each drive shaft may pass through an aperture in a corresponding drive plate. Each drive shaft may include a flange or enlarged head at one end attached to or capable of being attached to the drive plate. Each drive shaft may be engaged with the base element such that rotation of the drive shaft causes the drive plate to move in the radial direction. Each drive shaft may include an external thread, such as a trapezoidal thread. Each connecting element may include a gear nut. Each gear nut may have an external gear, such as a spur gear or a helical gear. Each gear nut may have an internal thread, such as a trapezoidal thread. Each connecting element may include a drive pinion. Each drive pinion may include a drive pinion drive means, such as a hydraulic drive means. Each drive pinion may engage with the external gear of the gear nut. The internal thread of each gear nut may engage with the external thread of a corresponding drive shaft. Each gear nut may be axially fixed to the base element, such as fixed to a drive web. Rotation of each pinion may cause the corresponding gear nut to rotate, which drives the corresponding drive shaft in the radial direction relative to the base element.

[0028] The base element may include at least two interconnected concentric rings. Each ring may include a plurality of apertures therethrough. Each aperture may correspond to a connecting element. Each aperture in the outer ring of the concentric rings may be aligned with a corresponding aperture in the inner ring of the concentric rings. The connecting portion of each connecting element may extend through the apertures in each ring. The connecting portion of each connecting element may extend through the apertures in each ring in both the radially outer position and the radially inner position. The apertures may provide guidance. The apertures may be provided with guides for guiding the movement of the corresponding connecting portion. Two apertures may be provided with guides for guiding the movement of the corresponding connecting portion between the radially outer position and the radially inner position.

[0029] Advantageously, each connecting portion may be supported in terms of bending by the apertures in the outer ring and the apertures in the intermediate ring.

[0030] The at least two interconnected concentric rings may include three interconnected concentric rings. The orifice may be included in the outer ring and the middle ring of the three concentric rings. The lifting arm may be rotatably connected to the inner ring of the three concentric rings.

[0031] The at least one connecting portion may include two parallel connecting portions. Each engaging portion may include a first coupling surface and a second coupling surface. The coupling surfaces of the engaging portion may each abut against the coupling surfaces of the radially outer ends of the corresponding connecting portions.

[0032] The turning device may include a drive shaft located between the radially inner end of each connecting portion and the base element. Each drive shaft may be configured to translate the corresponding connecting portion in the radial direction.

[0033] The turning device may include at least one guiding element. The turning device may include at least one guiding element attached to the base element. The turning device may include at least one guiding element attached to the base element for contacting the radially inner surface of the tubular pile in use to control the radial position of the base element relative to the tubular pile.

[0034] The at least one guiding element may include at least two centering devices. Each centering device may be slidably connected to the base element in the radial direction. Each centering device may be located on a respective radial half of the base element. Each centering device can extend from the radially outer surface of the base element. The turning device may include centering device drive means for driving the centering devices.

[0035] In an embodiment, the turning device includes a lifting element controller rotatably connected to the lifting arm about a third axis. The third axis may be parallel to the second axis. The third axis may be perpendicular to the first axis. The lifting element controller may include a first connecting element and a second connecting element connecting the spaced-apart plates of the lifting element controller together. The first connecting element and the second connecting element may be elements with a circular cross-section, such as tubes or rods, which are connected to the respective spaced-apart plates at either end. An opening may be defined by the connecting elements and the spaced-apart plates of the lifting element controller such that the lifting element can pass through or extend through the opening in use.

[0036] The lifting element controller can rotate about a second axis between a first position and a second position. In the first position, the opening of the lifting element controller can be perpendicular to the central axis of the lifting arm, for example perpendicular to the axis or line extending between a third axis and a second axis. For example, the plane of the opening can be perpendicular to the central axis of the lifting arm, for example perpendicular to the axis or line extending between a third axis and a second axis. In the second position, the opening can be at an oblique angle to the central axis of the lifting arm, for example at an oblique angle to the axis or line extending between a third axis and a second axis. For example, the plane of the opening can be at an oblique angle to the central axis of the lifting arm, for example at an oblique angle to the axis or line extending between a third axis and a second axis.

[0037] Advantageously, since one of the connecting elements intersects the lifting line from the lifting point of the lifting arm, the lifting line applied by the lifting element can be offset from the center line of the base element by rotating the lifting element about the third axis.

[0038] The lifting element controller can include fixing means for fixing the lifting element controller to the lifting arm in the second position, i.e., for preventing relative rotational movement of the lifting element controller about the third axis. The fixing means can fix the lifting element controller in the second position. Advantageously, when the lifting element controller is fixed in the second position, the lifting line of the lifting element can be more closely aligned with the center line of the base element or can be aligned with the center line of the base element when the center line of the base element is oriented such that it is parallel to the center line of the pile on the platen.

[0039] According to another aspect of the present invention, there is provided a turning device for turning a tubular pile, the turning device comprising:

[0040] A base element for insertion into the end of the tubular pile and for extending along the interior of the tubular pile;

[0041] A plurality of connecting elements connected to the base element and configured to engage one or more inner surfaces of the tubular pile;

[0042] A lifting arm for coupling the turning device to a lifting element, the lifting arm being rotatably coupled to the base element about a lifting arm axis;

[0043] A lifting element controller rotatably connected to the lifting arm about a lifting element controller axis, the lifting element controller axis being parallel to the lifting arm axis.

[0044] The lifting element controller can be the aforementioned lifting element controller. The lifting arm axis can be the aforementioned second axis. The lifting element controller axis can be the aforementioned third axis.

[0045] According to another aspect of the present invention, there is provided a method of flipping a tubular pile, the method comprising the steps of:

[0046] a) inserting a base element into a first end of the tubular pile;

[0047] b) rotating the base element about a first axis to a desired orientation relative to the tubular element, the first axis being the central axis of the base element and being substantially parallel to the central axis of the tubular pile;

[0048] c) radially outwardly moving the engaging portion of each of a plurality of connecting elements to engage with one or more inner surfaces of the tubular pile;

[0049] d) lifting a first end of the tubular pile by lifting a lifting arm using a lifting element connected to the lifting arm, the lifting arm being connected to the base element.

[0050] The method may further comprise step a1), wherein step a1) is before step a). Step a1) may include lowering the base element, the plurality of connecting elements, and the lifting arm to a position adjacent to the first end of the tubular pile. Step a1) may include rotating the base element and the plurality of connecting elements relative to the lifting arm about a second axis. The second axis may be perpendicular to the first axis. Rotating the base element and the plurality of connecting elements relative to the lifting arm about the second axis may substantially align the first axis and the central axis of the tubular pile.

[0051] Step d) may include rotating the lifting arm relative to the base element and the plurality of connecting elements about the second axis or a second axis. The second axis may be perpendicular to the first axis. Step d) may include rotating the lifting arm relative to the base element and the plurality of connecting elements about the second axis or a second axis while the first end of the tubular pile is suspended by a flipping device.

[0052] According to another aspect of the present invention, there is provided a method of deploying a tubular pile, the method comprising the aforementioned method of flipping a tubular pile, the method comprising a subsequent step of rotating the base element, the plurality of connecting elements, and the tubular pile about a first axis to adjust the orientation of the tubular pile.

[0053] According to another aspect of the present invention, there is provided a flipping device for flipping a tubular pile, the flipping device comprising:

[0054] a base element for insertion into an end of the tubular pile and for extending along the interior of the tubular pile;

[0055] a lifting arm connected to the base element, the lifting element for coupling the flipping device to a lifting element;

[0056] A plurality of connection elements, the plurality of connection elements being connected to a base element and configured to engage with one or more inner surfaces of a tubular pile, wherein each connection element includes:

[0057] An engagement portion, the engagement portion including a coupling portion, wherein the coupling portion has a radially inwardly facing coupling surface; and

[0058] A connection portion, the connection portion including:

[0059] A radially outer portion, wherein the coupling surface of the engagement portion abuts the coupling surface of the radially outer portion of the connection portion, and wherein each connection portion and the corresponding engagement portion are capable of moving in a radial direction; and

[0060] A first connection means, the first connection means being located at the radially outer end of each connection portion, the first connection means being for connection to an axial locking means, the axial locking means being for connection between the connection portion and the engagement portion for restricting axial movement of the engagement portion relative to the connection portion,

[0061] And wherein the base element includes a second connection means for connection to an actuating means, the actuating means being capable of connection between the base element and the engagement portion for causing the engagement portion to move along the coupling surface of the connection portion.

[0062] Advantageously, the same flipping device can be used with both flanged piles and non-flanged piles. That is, the first connection means and the second connection means are arranged in the described manner such that when the flipping device is used with a flanged pile, the axial locking means allows the engagement portion to be connected to the radially outer end of each connection portion, and when the flipping device is used with a non-flanged tapered pile, the actuating means allows connection between each engagement portion and the second connection means on the base element. Thus, a more versatile flipping device is provided.

[0063] Further advantageously, the radial movement of the connection portion and the engagement portion allows the flipping device to be inserted into an end of the pile having a smaller inner diameter than the diameter at the position where the connection element and the pile engage. That is, the base element is inserted into the end of the pile when the connection element is in a radially retracted position. Similarly, this means that the flipping device can be adapted to be used with both flanged piles and tapered, non-flanged piles. This reduces the complexity of the operation as the operation of the flipping device is similar in both configurations. This also reduces expenditure as only one flipping device needs to be obtained and maintained. This also reduces the amount of space required for the flipping device, for example, on an offshore vessel.

[0064] The connecting portion of the joint portion can also be a tapered portion. The radial thickness of the tapered portion can be tapered. The radial thickness of the tapered portion can taper away from the side of the base element on which the lifting arm is located. The radial thickness of the radially outer portion of the connecting portion can be tapered. The radial thickness of the radially outer portion can taper towards the side of the base element on which the lifting arm is located.

[0065] Each connecting element can include two parallel connecting portions. Each joint portion can include two parallel coupling portions or tapered portions. The radial thickness of the tapered portion can be tapered. The radial thickness of the tapered portion can taper away from the side of the base element on which the lifting arm is located. The coupling portion or tapered portion can each have a radially inward facing coupling surface. Each coupling surface of the joint portion can abut the coupling surface of the radially outer portion of a corresponding one of the connecting portions of the connecting element. When the connecting portion is in the radially outer position, each coupling surface of the joint portion can abut the coupling surface of the radially outer portion of a corresponding one of the connecting portions of the connecting element. Each connecting element can include a drive plate connected to the radially inner end of the connecting portion or each connecting portion. Each connecting element can include a drive shaft. Each drive shaft can pass through an aperture in the corresponding drive plate. Each drive shaft can include a flange or enlarged head at one end attached to or capable of being attached to the drive plate. Each drive shaft can be engaged with the base element such that rotation of the drive shaft causes the drive plate to move in the radial direction. Each drive shaft can include an external thread, such as a trapezoidal thread. Each connecting element can include a gear nut. Each gear nut can have an external gear, such as a spur gear or helical gear. Each gear nut can have an internal thread, such as a trapezoidal thread. Each connecting element can include a drive pinion. Each drive pinion can include a drive pinion drive means, such as a hydraulic drive means. Each drive pinion can engage with the external gear of the gear nut. The internal thread of each gear nut can engage with the external thread of the corresponding drive shaft. Each gear nut can be axially fixed to the base element, such as fixed to a drive web. Rotation of each pinion can cause the corresponding gear nut to rotate, which drives the corresponding drive shaft in the radial direction relative to the base element.

[0066] The base element may include at least two interconnected concentric rings. Each ring may include a plurality of apertures therethrough. Each aperture may correspond to a connecting element. Each aperture in the outer ring of the concentric rings may be aligned with a corresponding aperture in the inner ring of the concentric rings. The connecting portion of each connecting element may extend through the apertures in each ring. The connecting portion of each connecting element may extend through the apertures in each ring in both a radially outer position and a radially inner position. The apertures may provide guidance. The apertures may be provided with guides for guiding the movement of the corresponding connecting portion. Two apertures may be provided with guides for guiding the movement of the corresponding connecting portion between a radially outer position and a radially inner position.

[0067] The at least two interconnected concentric rings may include three interconnected concentric rings. The apertures may be included in the outer ring and the middle ring of the three concentric rings. The lifting arm may be rotatably connected to the inner ring of the three concentric rings.

[0068] The at least one connecting portion may include two parallel connecting portions. At least one coupling surface of each engaging portion may be two coupling surfaces of the engaging portion. At least one coupling surface of each engaging portion may be two coupling surfaces of the engaging portion that respectively abut against the radially outer ends of the corresponding one of the connecting portions in the corresponding connecting portion.

[0069] The tipping device may include a drive shaft. The drive shaft may be located between the radially inner ends of each connecting portion and the base element. Each drive shaft may be configured to move the corresponding connecting portion in the radial direction.

[0070] The lifting arm may be rotatably coupled to the base element. The lifting arm is capable of rotating relative to the base element about a first axis. The first axis may be the central axis of the base element. In use, the first axis may be substantially parallel to the central axis of the tubular pile.

[0071] The tipping device may include a mounting element. The lifting arm may be rotatably coupled to the base element via the mounting element. The mounting element may be rotatably coupled to the base element. The mounting element is capable of rotating relative to the base element about the first axis.

[0072] The lifting arm is also capable of rotating relative to the base element about a second axis. The second axis may be substantially perpendicular to the first axis.

[0073] The lifting arm may be rotatably coupled to the mounting element. The lifting arm is capable of rotating relative to the mounting element about the second axis.

[0074] The base element may include at least two interconnected concentric rings. The mounting element may extend through the center of the inner ring of the concentric rings. The mounting element may be rotatably coupled to the inner ring of the concentric rings. The mounting element may be supported by an axial bearing in the axial direction of the inner ring. The mounting element may be supported by at least two radial bearings in the radial direction of the inner ring. The concentric rings may be interconnected by a plurality of webs.

[0075] The base element may include three interconnected concentric rings. A plurality of connecting elements may be connected to the outer ring and the middle ring of the concentric rings. The mounting element may extend through the center of the inner ring of the concentric rings. The mounting element may be rotatably coupled to the inner ring of the concentric rings. The mounting element may be supported by an axial bearing in the axial direction of the inner ring. The mounting element may be supported by at least two radial bearings in the radial direction of the inner ring. The outer ring and the middle ring of the concentric rings may be interconnected by a plurality of outer webs. The middle ring and the inner ring of the concentric rings may be interconnected by a plurality of inner webs.

[0076] The turning device may include a lifting arm drive device. The lifting arm drive device may be used to rotate the lifting arm. The lifting arm drive device may be used to rotate the lifting arm relative to the base element about a second axis.

[0077] The lifting arm drive device may be a linear actuator. The linear actuator may be pivotally connected to the lifting arm at a first end. The linear actuator may be pivotally connected to the lifting arm at a first end at a position spaced apart from the second axis. The linear actuator may be pivotally connected to the mounting element at a second end. The linear actuator may be pivotally connected to the mounting element at a second end at a position spaced apart from the first axis.

[0078] The pipe turning device may include a drive device located between the mounting element and the base element. The drive device may be used to control the rotational movement of the base element relative to the lifting arm about a first axis.

[0079] The drive device may include a pinion and a rack. The pinion may be rotatably mounted to the mounting element. The rack may be provided in or on the base element. There may be at least two pinions rotatably mounted to the mounting element. There may be three pinions rotatably mounted to the mounting element, wherein one of the pinions is an emergency gear, or a spare gear or a virtual gear. The turning device may include a pinion rotation device, such as an electric motor, for rotating the pinions. The turning device may include a plurality of pinion rotation devices, such as electric motors, each for rotating a respective one of the pinions.

[0080] According to another aspect of the present invention, there is provided a tipping system, the tipping system comprising:

[0081] the above-mentioned tipping device;

[0082] an axial locking device; and

[0083] an actuating device;

[0084] wherein each connecting element has a friction lifting configuration and a flange lifting configuration.

[0085] In the friction lifting configuration, when the actuating device is connected to the connecting device of the base element, the engaging portion can be connected to or capable of being connected to the actuating device. In the flange lifting configuration, when the axial locking device is connected to the corresponding at least one connecting portion, the engaging portion can be connected to or capable of being connected to the axial locking device.

[0086] Each connecting element may include the engaging portion or engaging portions. Each connecting element may include at least one rack. At least one rack can be attached to the radially outer surface of the corresponding engaging portion. In the friction lifting configuration, at least one rack is attached to each engaging portion. Each connecting element may include at least one radial guide. At least one radial guide may be attached to or capable of being attached to the radially outer surface of the corresponding engaging portion. The connecting element may include at least one axial guide. At least one axial guide may be attached to or capable of being attached to the axial surface of the corresponding engaging portion. At least one axial guide is capable of being attached to the axial surface of the corresponding engaging portion adjacent to the radially outer surface of the corresponding engaging portion. In use, this axial surface may face the lifting arm. In the flange lifting configuration, at least one axial guide may be attached to each engaging portion. In the flange lifting configuration, at least one radial guide may be attached to each engaging portion.

[0087] In the friction lifting configuration, the axial guide can be detached from each engaging portion. In the flange lifting configuration, the rack can be detached from each engaging portion. In the friction lifting configuration, the rack can be configured to engage with the radially inner surface of the pile. In the flange lifting configuration, the radial guide can be configured to abut or be close to the radially inner surface of the pile, and the axial guide can be configured to abut the axially inner surface of the flange of the pile.

[0088] Advantageously, the engaging portion can be interchanged or reconfigured for use with a flanged pile or with a non-flanged pile. For example, the rack and the axial and radial guides can be interchanged on a given engaging portion such that the tipping device can be easily and quickly changed for use with a flanged pile or with a non-flanged pile.

[0089] The plurality of engagement portions may include friction engagement portions that are capable of connecting to the actuating device when the actuating device is connected to the connecting device of the base element. Each friction engagement portion may include at least one rack.

[0090] The plurality of engagement portions may include flange engagement portions that are capable of connecting to the axial locking device when the axial locking device is connected to the corresponding at least one connecting portion. Each flange engagement portion may include at least one axial guide rail. Each flange engagement portion may include at least one radial guide rail.

[0091] According to another aspect of the present invention, there is provided a method of flipping a tubular pile using the above-described flipping system, the method comprising the following steps:

[0092] a) Connecting each of the plurality of engagement portions to a corresponding one or more connecting portions to form a corresponding connecting element;

[0093] b) Inserting the base element into the first end of the tubular pile;

[0094] c) Radially outwardly moving the plurality of connecting elements to engage with one or more inner surfaces of the tubular pile;

[0095] d) Lifting the first end of the tubular pile by lifting the lifting arm using a lifting element connected to the lifting arm, the lifting arm being connected to the base element.

[0096] Step a) may include configuring the connecting element into a friction lifting configuration or a flange lifting configuration. Configuring the connecting element into a friction lifting configuration may include removing any radial guide rails and / or axial guide rails attached to the engagement portion. Configuring the connecting element into a friction lifting configuration may include attaching at least one rack to each engagement portion. Configuring the connecting element into a flange lifting configuration may include removing any racks attached to the engagement portion. Configuring the connecting element into a flange lifting configuration may include attaching at least one axial guide rail to each engagement portion.

[0097] For the avoidance of doubt, any feature described herein is equally applicable to any aspect of the present invention. For example, the flipping device of the first aspect may include any one or more features of the flipping devices of other aspects and / or the method may include any one or more features or steps related to any one or more features of the flipping devices of other aspects.

[0098] Within the scope of the present application, it is expressly intended that the various aspects, embodiments, examples and alternatives set forth in the foregoing paragraphs, in the claims and / or in the following description and drawings may be employed independently or in any combination, and in particular their respective features. That is, all embodiments and / or features of any embodiment may be combined in any way and / or combination, unless the features are incompatible. For the avoidance of doubt, the terms "may", "and / or", "such as", "for example" and any similar terms used herein shall be construed as non-restrictive, such that the presence of any feature so described is not required. In fact, any combination of alternative features is expressly contemplated without departing from the scope of the invention, whether or not such features are expressly claimed. The applicant reserves the right to amend any originally filed claim or to file any new claim accordingly, including the right to amend any originally filed claim to depend on any other claim and / or incorporate any feature of any other claim, even though originally not claimed in that manner.

[0099] Embodiments of the present invention will now be described, by way of example only, with reference to the accompanying drawings, in which:

[0100] Figure 1 is an isometric view of a tipping device according to the present invention, with the tipping tool in the friction lift mode;

[0101] Figure 2 is of Figure 1 the tipping device in the flange lift mode;

[0102] Figure 3 is of Figure 1 the tipping device in the friction lift mode;

[0103] Figure 4 is of Figure 1 the tipping device in the flange lift mode;

[0104] Figure 5 is of Figure 1 the tipping device in the flange lift mode, in a central cross-sectional side view, where the connecting element is retracted;

[0105] Figure 6 is of Figure 1 the tipping device in the flange lift mode, in a central cross-sectional side view, where the connecting element is extended;

[0106] Figure 7 is Figure 1 a detailed view of the drive means of the mounting element of the tipping device;

[0107] Figure 8 is in the extended configurationFigure 1 Detailed view of the connecting element of the flipping device;

[0108] Figure 9 is in the retracted configuration Figure 8 Detailed view of the connecting element of;

[0109] Figure 10 is Figure 8 Top view of the connecting element of;

[0110] Figure 11 is in the retracted configuration and located in a flanged tubular pile Figure 1 Top view of the flipping device of;

[0111] Figure 12 is in the retracted configuration and located in a flanged tubular pile Figure 11 Cross-sectional view along line BB of the flipping device of;

[0112] Figure 13 is in the extended configuration and located in a flanged tubular pile Figure 11 Cross-sectional view along line BB of the flipping device of;

[0113] Figure 14 is in the retracted configuration and located in a non-flanged tubular pile Figure 1 Top view of the flipping device of;

[0114] Figure 15 is in the retracted configuration and located in a non-flanged tubular pile Figure 14 Cross-sectional view along line AA of the flipping device of;

[0115] Figure 16 is in the extended configuration and located in a non-flanged tubular pile Figure 14 Cross-sectional view along line AA of the flipping device of;

[0116] Figure 17 Detailed view of the connecting element having a joint portion located in a non-flanged pile;

[0117] Figure 18 Detailed view of the connecting element having a joint portion located in a flanged pile;

[0118] Figures 19A to 19I Illustrates the flipping process of a pile using the flipping device of Figure 1 ;

[0119] Figures 20A to 20B Cross-sectional view of the flipping device according to another embodiment of the present invention;

[0120] Figure 21Side view of a tipping device with a lifting element controller according to another embodiment of the present invention;

[0121] Figure 22 is Figure 21 isometric view of a pile tipping device; and

[0122] Figure 23 shows the operating steps A to I of tipping a pile using the Figure 21 pile tipping device.

[0123] The drawings show a tipping device 1. The tipping device 1 has a base element 20, a plurality of connecting elements and a lifting arm 30. The base element 20 and the plurality of connecting elements are adapted to be inserted into the ends of the tubular piles FP, CP and to extend along the interior of the tubular piles FP, CP (e.g., as visible in Figures 11 to 18 ). Each connecting element is connected to the base element 20 and is configured to engage one or more inner surfaces of the tubular pile. The lifting arm 30 is used to couple the tipping device 1 to a lifting element H.

[0124] In this example, the base element 20 has three rings, namely an outer ring 201, an intermediate ring 202 and an inner ring 203. The rings 201, 202, 203 are concentric with each other. A plurality of outer webs 204 connect the outer ring 201 and the intermediate ring 202 together. A plurality of inner webs 205 connect the intermediate ring 202 and the inner ring 203 together.

[0125] The lifting arm 30 is rotatably coupled to the base element 20. The lifting arm 30 is capable of rotating relative to the base element about a first axis A1. The first axis A1 is the central axis of the base element 20. In use, the first axis A1 is substantially parallel to the central axis of the tubular pile. In use, the base element 20 and the connecting elements are capable of rotating about the first axis A1 to align the connecting elements with a desired engagement position on one or more inner surfaces of the tubular pile, e.g., to prevent the connecting elements from engaging one or more inner surfaces of the tubular pile in an inappropriate area, such as at a welding area. Then, when the connecting elements engage one or more inner surfaces of the tubular pile, the lifting element H can be used to lift the lifting arm 30 to tip the tubular pile. The tipping device 1 can also be used to deploy a pile or lower a pile. The base element 20 and the connecting elements can rotate about the first axis A1 when the pile is fully suspended by the lifting element H to change the orientation of the tubular pile.

[0126] Advantageously, the base element 20 and the connecting element are able to rotate about a first axis A1 to avoid the engagement between the connecting elements being in a sub-optimal position, such as a welding position, in the pile, or at least reduce the risk of the engagement between the connecting elements being in a sub-optimal position, such as a welding position. Further advantageously, the base element 20 and the connecting element are able to rotate about the first axis A1 when inserted into the tubular pile to vertically align two of the connecting elements. This can help to center the tipping device 1 in the pile, since the engagement of the vertically aligned connecting elements can be used to align the tipping device in the vertical direction. In addition, these vertically aligned connecting elements can first engage with the tubular pile to further help to center the tipping device 1 in the tubular pile. Further advantageously, by rotating the base element 20 and the connecting element about the first axis A1, the orientation of the pile can be changed during deployment. Thereby, the orientation of the pile can be fine-tuned. This can be advantageous in controlling the orientation of the pile when the pile is lowered into the ground into which it is to be driven. This can also be advantageous when the pile is two parts bolted together along its length, such that the first part of the pile is supported on a surface in an upright configuration and the second part is lowered onto the first part such that the first and second parts can be bolted together. Rotating the second part of the pile about the first axis means that the bolt holes in the first and second parts of the pile can be easily aligned for connecting the two parts together.

[0127] The lifting arm 30 is able to rotate relative to the base element about the first axis A1 by any suitable means. In this example, the tipping device 1 has a mounting element 40. The mounting element 40 can also be referred to as a rotary connector. The mounting element 40 provides an intermediate frame between the lifting arm 30 and the base element 20. The mounting element 40 is rotatably coupled to the base element 20. The mounting element 40 is able to rotate relative to the base element 20 about the first axis A1. In this way, the orientation of the lifting arm 30 relative to the first axis A1 can be decoupled from the orientation of the base element 20 relative to the first axis A1.

[0128] The mounting element 40 can be rotatably coupled to the base element 20 by any suitable means. In this example, the mounting element 40 is mounted to the base element 20 via a radial bearing as described below.

[0129] In this example, the mounting element 40 has two parallel connecting plates 401 with aligned apertures passing through each connecting plate. Extending between the two connecting plates 401 is a first support web 402. The first support web 402 is located at the proximal end of the first side of each connecting plate 401. As in Figure 5 and Figure 6As best shown, the mounting element 40 has an axial bearing, such as a thrust bearing 403, mounted to the first end, i.e., the first axial end, which is the end furthest from the orifice through the connection plate 401. Surrounding and attached to each connection plate 401, adjacent to the axial bearing 403, is a first radial bearing 405. Surrounding and attached to each connection plate 401 at a location spaced from the axial bearing 403 is a second radial bearing 406. Extending from one side of each connection plate 401 between the second radial bearing 406 and the second end, i.e., the second axial end, of the mounting element is an actuator support 404. The second end is located at the axial end of the mounting element 40 opposite the first end. The actuator support has two side plates converging to two parallel mounting plates, each mounting plate having an orifice therethrough aligned with the orifice of the other mounting plate. Located on the outward-facing surface of one of the connection plates 401, between the second radial bearing 406 and the second end of the mounting element 40, are two anti-rotation tube mounts 407. For example, the first radial bearing 405 and the second radial bearing 406 can be roller bearings, ball bearings, or radial sliding bearings.

[0130] During assembly of the tipping device 1, the radial bearings 405, 406 are mounted to the connection plates 401 of the mounting element 40, and the radial bearings 405, 406 are located within the inner ring 203 of the base element 20. The axial bearing 403 of the mounting element 40 is attached to the connection plate 401. The axial bearing 403 is located outside the inner ring 203 at one end of the inner ring 203. The actuator support 404 and the orifices through the connection plates are located outside the inner ring 203 at the other end of the inner ring 203.

[0131] The mounting element 40 can include any suitable means for rotating the mounting element 40 relative to the base element 20. In this example, and as in Figure 7As best shown, the tipping device 1 includes a plurality of pinions 1201 or rotatable gears coupled to a pinion mounting plate 408, which extends from any number of connecting plates 401 and a first support web 402 of the mounting element 40. The pinion mounting plate 408 is located between the second radial bearing 406 and the second end of the mounting element 40. The tipping device 1 further includes gear rotation means 1202 associated with each pinion 1201 for driving the corresponding pinion 1201 to rotate, and in this case the gear rotation means 1202 is an electric motor or a hydraulic motor. In this example, there are three pinions 1201. In this example, one of the pinions 1201 is redundant, but can be enabled in the event of a failure of one of the other pinions 1201. Mounted to the radial inner surface of the inner ring 203 of the base element 20 and extending circumferentially therearound is a rack 1203. The rack 1203 is located proximal to the end of the inner ring 203 facing the lifting arm 30. The pinions 1201 engage the rack 1203 such that rotation of the pinions 1201 causes the pinions 1201 to move along the rack 1203, thereby rotating the mounting element 40 relative to the base element 20.

[0132] In this example, the lifting arm 30 has two parallel plates 301 connected together by a central web 302. Each plate 301 of the lifting arm 30 has a beam-shaped central section and bulb-shaped end sections located at either end of the central section. Each end section has a central aperture. The central web 302 extends between the central sections of the parallel plates 301. The lifting arm has an actuator mounting portion 303, which is an extension of each plate 301 and is located midway along the central section of the corresponding plate 301. Each actuator mounting portion 303 has an aperture therethrough, which is aligned with the aperture in the actuator mounting portion 303 of the other plate 301. The lifting arm 30 has a bracket portion 304, which is an extension of one end section of each plate 301. The bracket portion 304 extends from one side of the corresponding end section. It should be understood that other configurations of the lifting arm 30 are also possible.

[0133] In this example, the lifting arm 30 is rotatably coupled to the mounting element 40. The lifting arm 30 is capable of rotating relative to the mounting element 40 about a second axis A2. The second axis A2 is perpendicular to the first axis A1. As will be described later with respect to Figures 19A to 19I During the lifting of the tipping device by the lifting element H, the lifting arm 30 is capable of rotating about the second axis A2. The base element 20 and the connecting element are also capable of rotating relative to the lifting arm 30 about the second axis to bring the central axis of the base element 20 closer to horizontal for inserting the base element 20 and the connecting element into a tubular pile.

[0134] In this example, the rotatable coupling between the lifting arm 30 and the mounting element 40 includes bearings fixed to the orifices of each connecting plate 401 of the mounting element 40, such as roller bearings or ball bearings. The first shaft 1001 is rotatably supported between the two bearings. The first shaft 1001 passes through the orifices in the end sections of the plate 301 of the lifting arm 30, which end sections are those that do not have the bracket portions 304 extending therefrom. Thus, the lifting arm 30 can rotate relative to the mounting element 40 about the second axis A2.

[0135] In this example, the lifting arm 30 is rotated relative to the mounting element 40 by the linear actuator 90. As described later with respect to Figures 19A to 15 I, the linear actuator 90 retracts to rotate the base element 20 relative to the lifting arm 30 so that the central axis of the base element 20 is closer to horizontal.

[0136] The end connector at the end of the piston of the linear actuator 90 is rotatably connected to the mounting plate of the actuator support 404 of the mounting element 40. The connection between the end connector of the linear actuator 90 and the mounting plate of the actuator support 404 is made via a pin that passes through the orifice in the mounting plate and through the end connector of the linear actuator 90. Located midway along the cylinder of the linear actuator 90 is a connection feature that is rotatably connected to the actuator mounting portion 303 of the lifting arm 30. When the linear actuator 90 is in the retracted configuration, the axis passing through the centers of the orifices at each end section of the plate 301 of the lifting arm 30 is substantially parallel to the radial direction of the rings 201, 202, 203 of the base element 20.

[0137] Now referring to Figure 8 and Figure 9 , the connecting portion 601 of the connecting element of the tipping device 1 is shown. In this example, the connecting portion 601 includes a first radially inner end 602 and a second radially outer end 603 (shown on the right in Figure 8 and Figure 9 ). The radially outer portion corresponding to the second end 603 tapers along the height direction (the vertical direction in Figure 8 and Figure 9 ). The radial thickness of the radially outer portion tapers (i.e., decreases in thickness) towards the side of the base element 20 on which the lifting arm 30 is located. The second end 603 includes a radially outward facing coupling surface.

[0138] At one end of the coupling surface corresponding to the shorter length of the connecting portion 601, there is an overhanging portion 604 extending in the length direction of the connecting portion 601. Each connecting portion 601 has two connecting means 605 at the second end. In this example, the connecting means 605 are blind holes or recesses that start from the coupling surface and extend in the length direction of the corresponding connecting portion 601. The holes or recesses can be threaded.

[0139] As best shown in Figure 11 , in this example, each connecting portion 601 is arranged in a group of two parallel connecting portions 601. However, it should be understood that a single connecting portion 601 or more than two parallel connecting portions 601 can be used.

[0140] Each connecting portion 601 is capable of moving radially relative to the tubular pile in use. For example, Figure 8 shows a connecting portion 601 in a more radially outward position compared to the connecting portion 601 in Figure 9 .

[0141] Each connecting portion 601 can be radially moved by any suitable means. In this example, each connecting portion 601 is radially moved by means of a threaded drive shaft 607, and the rotation of the threaded drive shaft 607 displaces the connecting portion 601 relative to the base element 20.

[0142] As Figures 8 to 10Best shown in this example, for each set, the two connecting portions 601 are connected at the first end 602 by a drive plate 606 that extends between and is attached to the two connecting portions 601. The drive plate 606 has a central aperture therethrough, and a drive shaft 607 extends through the central aperture. The drive shaft 607 has a head sized to prevent it from passing through an enlarged central aperture in the corresponding drive plate 606. Each drive shaft 607 may also have a collar or retainer to prevent the drive shaft from being removed from the drive plate 606 without first removing the collar. Each drive shaft 607 has an external thread (not shown), such as a trapezoidal thread. Each connecting element has a gear nut 608. Each gear nut 608 has an external gear, such as a spur gear or a helical gear. Each gear 608 nut has an internal thread (not shown), such as a trapezoidal thread. Each gear nut 608 is mounted to an intermediate ring 202 of the base element 20 such that the gear nut 608 can rotate but is axially restricted. Each connecting element has a drive pinion 609. Each drive pinion has a drive pinion drive 609a, such as a hydraulic drive or an electric motor. Each drive pinion 609 and drive pinion drive 609a are mounted to the base element 20, in this example to a corresponding drive web 208 that extends between each outer web 204 and between the outer ring 201 and the intermediate ring 202.

[0143] Figure 8 and Figure 9 A side view of one of the drive webs in the drive web 208, i.e., a circumferential view relative to the base element 20, is shown. Each drive pinion 609 engages the external gear of the corresponding gear nut 608. The internal thread of each gear nut 608 engages the external thread of the corresponding drive shaft 607. Rotation of each drive pinion 609 causes rotation of the corresponding gear nut 608, which drives the corresponding drive shaft 607 in a radial direction relative to the base element 20. In this way, the connecting portion 601 moves in a radial direction between the extended position as shown in Figure 8 and the retracted position as shown in Figure 9 .

[0144] In this example, each ring of the base element 20 includes a plurality of apertures therethrough, each aperture corresponding to a connecting element. Each aperture in the outer ring 201 is aligned with a corresponding aperture in the intermediate ring 202. The apertures provide guidance for the radial movement of the corresponding connecting portion.

[0145] Specifically, the outer ring 201 has a plurality of first apertures 206, and the plurality of first apertures 206 are arranged in groups of two first apertures 206. The first apertures 206 extend through the outer ring 201 in the radial direction. The intermediate ring 202 has a plurality of second apertures 207, and the plurality of second apertures 207 are arranged in groups of two second apertures 207. The second apertures extend through the intermediate ring 202 in the radial direction. The distance between two first apertures 206 in each group of two first apertures 206 in a direction perpendicular to the radial direction of the outer ring 201 is the same as the distance between two second apertures 207 in each group of two second apertures 207 in a direction perpendicular to the radial direction of the intermediate ring 202. Each group of two first apertures 206 is aligned with a corresponding group of two second apertures 207. That is, the line passing through the center of one first aperture 206 in each group of two first apertures 206 and the center of the corresponding one second aperture 207 in the corresponding group of two second apertures 207 is parallel to the radial direction of the rings 201, 202, 203 of the base element 20. All the apertures in the first apertures 206 and the second apertures 207 have substantially the same in-plane dimensions and shapes.

[0146] In this example, located at the end of each drive web 208, at the axial end of the outer ring 201, on the side of the base element 20 where the lifting arm 30 is located, is the connecting device 210. The connecting device 210 is an extension of the corresponding drive web 208. The connecting device 210 extends axially away from the outer ring 201 and extends radially outward. Each connecting device 210 has a connecting hole 211 therethrough.

[0147] Each connecting part 601 extends through a corresponding one of the first apertures 206 in the outer ring 201 and through a corresponding one of the second apertures 207 in the intermediate ring 202. The first end 602 of each connecting part 601 is located radially inside the intermediate ring 202, and the second end 603 of each connecting part 601 is located radially outside the outer ring 201. In this way, each drive plate 606 is located between the inner ring 203 and the intermediate ring 202.

[0148] Now referring to Figure 17 and Figure 18 , each connecting element includes an engaging portion 70. In this example, the connecting element can be configured in a friction lift configuration or a flange lift configuration. The connecting element is shown in a friction lift configuration in Figure 17 and in a flange lift configuration in Figure 18 . Generally, in the friction lift configuration, the engaging portion 70 is configured to provide frictional engagement with the inner surface of the tubular pile, and in the flange lift configuration, the engaging portion 70 is configured to provide engagement with the flange of the tubular pile.

[0149] In this example, the engagement portion 70 has a coupling portion that tapers in profile, where the radial thickness tapers away from the side of the base element 20 on which the lifting arm 30 is located. The coupling portion of each engagement portion 70 includes a radially inwardly facing coupling surface.

[0150] In use, the connection portion 601 is capable of radial movement to bring the engagement portion 70 into contact with the inner surface of the tubular pile. As will become clear from the following description, it should be understood that the radial amount of movement of the connection portion 601 required to bring the engagement portion 70 into contact with the inner surface of the tubular pile will depend on a number of factors - such as the configuration of the connection element (i.e., the friction lift configuration or the flange lift configuration) and the inner diameter of the tubular pile.

[0151] In this example, the coupling surface of each engagement portion is formed by an elongate boss as described herein. As best shown in Figure 3 and Figure 4 , each engagement portion 70 has a facing plate. Two parallel and elongate bosses 702 extend radially inwardly from the facing plate. Each boss 702 is tapered such that the thickness of the boss 702 tapers away from the facing plate as the distance along the boss 702 increases. Extending between the two bosses 702 is an actuator connection plate (not shown) having an aperture therethrough. The radially inner surface of each boss 702 has an axial locking device 803. In this example, the axial locking device 803 is in the form of two apertures extending into the respective boss 702. Schematically illustrated in Figure 18 is a locking device, such as a pin, received in the axial locking device 803. As best shown in Figure 3 , the engagement portion 70 in the friction lift configuration has two parallel racks 701 connected to the facing plate. The racks 701 are tapered, i.e., the thickness of the racks 701 tapers away from the facing plate over the length of each rack 701. The racks 701 are parallel to and aligned with the bosses 702. The taper of each rack 701 is in the opposite direction to the taper of each boss 702.

[0152] As Figure 4 best shown, the engagement portion 70 in the flange lift configuration has two parallel radial guide rails 801 on the radially outer surface of the facing plate. The strips 801 are parallel to and aligned with the bosses 702. The axial surface of each engagement portion 70 that faces the lifting arm 30 in use has an axial guide rail 804 attached thereto. Each axial guide rail is aligned in the circumferential direction relative to the base element 20. Each axial guide rail and radial guide rail can be, for example, a sliding bearing made of a composite material.

[0153] Each connecting element of the tipping device 1 can be switched between a friction-lifting configuration and a flange-lifting configuration. Thereby, the tipping device 1 is switched between a friction-lifting mode and a flange-lifting mode. In Figure 1 and Figure 3 , the tipping device 1 is in the friction-lifting mode, and in Figure 2 and Figure 4 , the tipping device 1 is in the flange-lifting mode. Configuring the tipping device 1 in the friction-lifting mode includes removing any radial guide rails 801 and / or axial guide rails 804 attached to the engagement part 70 and attaching two rack bars 701 to each engagement part 70. Remove the locking device received in the axial locking device 803 (if present). Configuring the tipping device 1 in the friction-lifting mode further includes attaching the actuator 1006 between the actuator connection plate of each engagement part 70 and the connection device 210 of the corresponding drive web 208 of the base element 20. As further described below, the actuator 1006 is used to move the engagement part 70 along the coupling surface of the connection part 601.

[0154] Configuring the tipping device 1 in the flange-lifting mode includes removing any rack bars 701 attached to the engagement part and attaching two axial guide rails 804 and two radial guide rails 801 to each engagement part 70. Configuring the tipping device 1 in the flange-lifting mode further includes inserting a locking device into the axial locking device 803 to connect each engagement part 70 to the corresponding connection part 601.

[0155] It should be understood that the tipping device 1 can also be switched between a friction lifting mode and a flange lifting mode by switching between a set of engagement parts 70 having a rack 701 attached thereto and a set of engagement parts 70 having a radial guide 801 and an axial guide 804 attached thereto. In the friction lifting mode, each engagement part in the set of engagement parts 70 with the attached rack 701 is disposed on a corresponding connection part 601, and one of the actuators 1006 is connected between the actuator connection plate of the engagement part 70 and the connection means 210 of the corresponding drive web 208. As further described below, the actuator 1006 is used to move the engagement part 70 along the coupling surface of the connection part 601. In the flange lifting mode, each engagement part 70 in the set of engagement parts 70 with the attached radial guide 801 and axial guide 804 is disposed on a corresponding connection part 601, and a locking means is inserted into the axial locking means 803 to connect each engagement part 70 to the corresponding connection part 601. Advantageously, by providing the ability to change the configuration of the same tipping device 1 to be capable of being used with both flanged piles FP and unflanged piles CP, the complexity of the operation is reduced because the operation of the tipping device 1 is similar in both configurations. This also reduces expenditure because only one tipping device 1 needs to be obtained and maintained. This also reduces the amount of space required for the tipping device 1, for example, on an offshore vessel (not shown). Further advantageously, by inserting the base element 20 when the connecting element is in the radially retracted position, the base element 20 and the connecting element can be inserted into an end of the pile having a smaller inner diameter compared to the diameter at the position where the connecting element and the pile engage. Similarly, this means that the tipping device 1 is capable of being used with flanged piles FP and unflanged piles, such as unflanged tapered piles CP. That is to say, this means that the tipping device 1 is suitable for insertion into the flanged end of the flanged pile FP and for insertion into the narrowest end of the tapered, unflanged pile CP.

[0156] Now referring to Figures 11 to 13 and Figure 18 , an assembly of the tipping device 1 for use with a flanged pile FP is shown. When the tipping device 1 is to be used with a flanged pile FP, one engagement part in the engagement parts 70 having a radial guide 801 and an axial guide 804 attached thereto is attached to two connection parts 601 of each set via engagement between the axial locking means 803 of each engagement part 70 and the connection means 605 at the second end of the corresponding connection part 601. The axial locking means 803 restricts the axial movement of the engagement part 70 relative to the connection part 601.

[0157] When the flipping device 1 is used with a flanged pile FP, the base element 20 is located inside the flanged end of the pile FP. The connecting element is in the retracted position. Then, the drive shaft 607 rotates to drive the connecting portion 601 and the engaging portion 70 in a radially outward direction such that the engaging portion 70 engages the inner surface of the flange of the flanged pile FP. That is, the radial guide rails 801 attached to each engaging portion 70 abut or at least are close to the radial inner surface of the pile. The axial guide rail 804 contacts the axial inner surface of the flange of the pile.

[0158] Now referring to Figures 14 to 17 , an assembly of the flipping device 1 for use with a non - flanged tapered pile CP is shown. When the flipping device 1 is to be used with a non - flanged pile CP, one engaging portion in the engaging portions 70 having a rack 701 attached thereto abuts two connecting portions 601 of each group such that the tapered second end of the corresponding connecting portion 601 can slidably contact the radial inner surface of each boss 702 of the corresponding engaging portion 70. The tapered bosses 702 of each engaging portion 70 are oriented oppositely to the taper of the corresponding connecting portion 601. That is, the thickest part of each boss 702 of the engaging portion 70 contacts the coupling surface of the corresponding connecting portion 601 on the proximal side of the shortest length of the connecting portion 601. One end of a linear actuator 1006 is connected to a connection hole 211 through a corresponding connection device 210 of the base element 20. The other end of each linear actuator 1006 is connected to an actuator connection plate of the corresponding engaging portion 70. Thus, the extension and retraction of one of the linear actuators 1006 causes the corresponding engaging portion 70 to slide on the coupling surface of the corresponding connecting portion 601, which causes the corresponding engaging portion 70 to shift radially outward. The overhang 604 prevents the engaging portion 70 from sliding upward, which otherwise might occur during the flipping phase.

[0159] When the flipping device 1 is used with a non - flanged pile CP, the base element 20 is located inside the narrowest end of the pile CP. The connecting element is in the retracted position. Then, the drive shaft 607 rotates to drive the connecting portion 601 and the engaging portion 70 close to or into contact with the radial inner surface of the pile CP. The linear actuator 1006 then extends to push each engaging portion 70 along the coupling surface of the corresponding connecting portion 601 such that the teeth of the engaging portion 70 engage the radial inner surface of the pile CP.

[0160] Now referring to Figures 19A to 19I , the flipping process is described. In Figures 19A to 19I , the flipping process is illustrated by a non - flanged pile CP, but it should be understood that the process is similar when used to flip a flanged pile FP.

[0161] The base element 20 has four legs 212. Each leg 212 is partially formed by an extension of two of the outer webs 204. Each leg 212 formed by the extensions of two of the outer webs 204 is joined together by a foot. Each leg 212 formed by the extensions of two of the outer webs 204 extends from a first side of the outer web 204, the first side being the axial side of the outer web 204 opposite the side on which the lifting arm 30 is located. When the tipping device 1 is in storage, the first side of the outer web 204 faces downward. The base element 20 also has a platform 213. The platform 213 is formed by extensions of two of the outer webs 204. The extensions are joined together by a flat plate. The platform 213 formed by the extensions of two of the outer webs 204 extends from a second side of the outer web 204, the second side being the axial side of the outer web 204 on which the lifting arm 30 is located. When the tipping device 1 is in storage, the second side of the outer web 204 faces upward.

[0162] As Figure 19A shown, the tipping device 1 is stored with the tipping device 1 standing on the legs 212 of the base element 20.

[0163] The second shaft 1002 is fixed between the apertures of each plate 301 of the lifting arm 30 at the end section having the bracket portion 304 extending therefrom. The pulley 1003 is rotatably mounted to the second shaft 1002.

[0164] As Figure 19B shown, the lifting element H is attached to the pulley 1003, and the linear actuator 90 ( Figures 19A to 19I not shown) extends when tension is applied to the lifting element H such that the lifting arm 30 rotates relative to the mounting element 40 about the first axis 1001 and about the second axis A2. Then, the tipping device 1 is lifted from the surface on which the tipping device 1 is stored by the lifting element H. During this movement, the central axis of the base element 20 is substantially vertical.

[0165] As Figure 19C shown, the linear actuator 90 retracts to rotate the base element 20 relative to the lifting arm 30 such that the central axis of the base element 20 is closer to horizontal.

[0166] As Figure 19D shown, the tipping device 1 is lowered onto the temporary support 1101 on the mounting frame 1102. When the tipping device 1 is lowered onto the temporary support 1101, the temporary support 1101 contacts one of the legs 212 to rotate the tipping device 1 such that the central axis of the base element 20 is substantially horizontal. Advantageously, the legs 212 can be aligned with the temporary support 1101 by rotating the base element 20 about the first axis A1.

[0167] As Figure 19E shown, when the central axis of the base element 20 is substantially horizontal, the tipping device 1 is temporarily connected to the mounting frame 1102. The temporary support 1101 is then removed.

[0168] As Figure 19F and Figure 19G shown, the tipping device 1 and the mounting frame 1102 are moved near the pile via the lifting element H. Then, by sliding the mounting frame 1102 in a direction perpendicular to these axes, the central axis of the base element 20 is aligned with the central axis of the pile. By sliding the mounting frame 1102 towards the pile, the base element 20 and the connecting element are inserted into the end of the pile with the connecting element in the retracted position. Once the tipping device 1 is inserted into the pile, the platform 213 contacts the upper surface or edge of the pile.

[0169] Once the base element 20 and the connecting element are inserted into the end of the pile and when the connecting element is retracted, the base element rotates about a first axis relative to the mounting element 40 such that the connecting element is optimally aligned with one or more inner surfaces of the pile. This causes one or both of the connecting elements to be vertically oriented such that these connecting elements can protrude before the other connecting elements to help center the tipping device 1 in the pile. The rotation of the base element 20 and the connecting element about the first axis A1 also avoids the contact force between the pile and the connecting element being in an inappropriate position, such as at a welded position.

[0170] Located on the outer ring 201 of the base element 20 are a plurality of guiding elements, which are centering devices 214, and the centering devices 214 are visible in Figure 3 and Figure 4 . The centering device 214 is a piston capable of radially extending outward from the outer ring 201. A centering device drive (not shown) for radially extending the centering device is provided radially inside the outer ring 201. In this example, the centering devices 214 are provided in groups of two circumferentially aligned centering devices 214. In this example, there are four groups of two centering devices 214 at equidistantly spaced positions around the circumference of the outer ring 201. However, there may be two, three or more groups of centering devices.

[0171] Then, the centering device 214 of the base element 20 extends radially outward to center the base element 20 within the pile. Then the vertically aligned connecting elements are extended. In the case of use with a non-flanged pile CP, the linear actuator 1006 connected to the vertically aligned connecting elements extends such that the engaging portion 70 of these connecting elements having the rack 701 attached thereto engages the radially inner surface of the pile. In the case of use with a flanged pile FP, the drive shaft 607 of the vertically aligned connecting elements drives the connecting elements radially outward until the engaging portion 70 having the radial guide 801 and the axial guide 804 attached thereto engages the flange of the flanged pile FP. This engagement between the vertically aligned connecting elements and the inner surface of the pile further ensures that the base element 20 is centered within the pile. Then, the remaining portions of the connecting elements are extended to engage the inner surface of the pile. That is, in the case of use with a non-flanged pile CP, the linear actuator 1006 connected to the remaining connecting elements extends such that the engaging portion 70 of these connecting elements having the rack 701 attached thereto engages the radially inner surface of the pile. In the case of use with a flanged pile FP, the drive shaft 607 of the remaining connecting elements drives the connecting elements outward until the engaging portion 70 having the radial guide 801 and the axial guide 804 attached thereto engages the flange of the flanged pile FP. Then, the mounting frame 1102 is disconnected from and removed from the tipping device 1.

[0172] As Figure 19H shown, the tipping device 1 is then lifted by the lifting element H to lift the end of the pile. During the lifting of the pile, the lifting arm 30 is rotated about the second axis A2 by extending the linear actuator 90 connected between the lifting arm 30 and the mounting element 40.

[0173] The anti-rotation beam 1004 is fixed to the anti-rotation beam mount 407 on the mounting element 40. The anti-rotation beam 1004 is perpendicular to the central axis of the base element 20. The anti-rotation beam 1004 is of tubular shape.

[0174] As Figure 19I shown, when the pile is vertically suspended, the towing line TL is connected to either end of the anti-rotation beam 1004 to prevent the lifting arm 30 and the mounting element 40 from rotating. Then the orientation of the pile can be changed by rotating the base element 20 and the connecting elements about the first axis A1.

[0175] Then the pile can be inserted into the ground, held upright by the pile gripper, and driven into the ground.

[0176] Now referring to Figure 20A and Figure 20B , a tipping device 1' according to a second embodiment of the present invention is shown. The tipping device 1' has the same as that referred toFigures 1 to 19I Features similar to those described for the tipping device 1 are described, and the similar features are denoted by the same reference numerals with a suffix apostrophe ('). Only the features of the tipping device 1' that are different from the features of the previous embodiment are described herein.

[0177] The tipping device 1' of this embodiment differs from the previous embodiment in that the lifting arm 30' has a first section 301' and a second section 302', and the first section 301' is angled with respect to the second section 302'. The tipping device 1' of this embodiment differs from the previous embodiment in that the mounting element 40' is substantially flush with the side of the base element 20' facing the lifting arm 30'. Accordingly, the end of the lifting arm 30' connected to the first shaft 1001' is coupled to the mounting element 240' at a position radially inside the inner ring 201' of the base element 20'. The angle between the first section 301' and the second section 302' of the lifting arm 30' means that when the central axis of the base element 20' is aligned horizontally with the pile, as Figure 20A shown, the first section 301' is perpendicular to the central axis of the base element 20'. When the pile is suspended in a vertical orientation, as Figure 20B shown, the first shaft 1001' and the second shaft 1002' are vertically aligned.

[0178] Figure 21 and Figure 22 shows another example of a tipping device, in which the lifting arm 30 includes a lifting element controller 55 rotatably connected to the lifting arm 30 by means of a second shaft 1002". The lifting element controller 55 includes a pair of spaced-apart plates, wherein in the lower section of the pair of spaced-apart plates, each plate includes an aperture or opening for pivotally engaging with the second shaft 1002". The lifting element controller 55 further includes a first connecting element 57 and a second connecting element 59 that connect the spaced-apart plates together. The lifting element H is disposed through an opening defined by the connecting elements 57, 59 and the pair of spaced-apart plates of the lifting element controller 55. The lifting element controller 55 can rotate between a first position and a second position about the second shaft 1002", and the second shaft 1002" defines a third axis parallel to the second axis. In the first position, when the lifting arm 30 is vertical and the centerline of the base element is vertical, the lifting element controller 55 is vertical. In the second position, when the lifting arm 30 is vertical and the centerline of the base element is vertical, the lifting element controller 55 is horizontal. In the first position, the lifting element H is in its maximum extended form and is most likely suspended on a lifting machine (such as a crane). When the lifting element controller 55 is in the second position, the lifting element H contacts the second connecting element 59.

[0179] In addition, each board in the lifting element controller's board includes an opening 56, and the lifting arm 30 has two spaced-apart bracket portions 304 extending therefrom. The bracket portions 304 have locking elements 58 corresponding to the openings 56 in the board of the lifting element controller when the lifting element controller 55 is in the second position. Thus, when the lifting element controller 55 rotates from the first position to the second position about the second axis 1002", the lifting element controller 55 can be locked or fixed to the lifting arm 30 in the second position by means of the locking elements 58 provided at each side of the bracket portion 304. The locking element 58 is configured to fix the position of the lifting element controller 55 and thus fix the position of the lifting element H relative to the lifting arm 30.

[0180] It should be understood that the tipping device of this embodiment differs from the previous embodiment in terms of the features Figure 21 and Figure 22 described, but the remaining features of the tipping device are similar to those described with reference to the previous embodiment.

[0181] Now referring to FIG. 23, the operation of the Figure 21 and Figure 22 opening device is now described. FIG. 23 shows steps A - I for tipping a flanged pile FP. However, it should be understood that the steps will be the same for tipping a tapered pile with a suitable base element.

[0182] In step A, the tipping device stands on the platen D, for example for storage or transportation. The center line of the base element is vertical (when the ship on which the tipping device is located is upright), the lifting arm 30 is in the stowed position, in which the lifting arm 30 rotates away from the lifting position, and the lifting element controller 55 is in the second position. In this configuration, the bracket portions 304 of the lifting arm 30 extend downward along the radial sides of the base element, and the lifting element controller 55 is fixed to the lifting arm 30 in the second position. The lifting element H connected to the second axis 1002" and passing through the opening defined by the connecting elements 57, 59 and a pair of spaced-apart boards of the lifting element controller thus extends vertically from the second connecting element 59. The cross-section of the connecting element 59, which is a tube or rod, is circular and is connected to the spaced-apart boards at its ends. In other words, the lifting element H extends from the second axis 1002" to the second connecting element 59 before it can extend vertically to the lifting machine.

[0183] In step B, the lifting arm 30 is rotated relative to the base element into the lifting position while the lifting element connector 55 remains fixed to the lifting arm 30 in the second position. The shape of each bracket portion 304 means that the lifting line from the lifting element H follows the center line of the base element, even though the lifting element H is bent around the second connecting element 59.

[0184] In step C, when in the configuration described in step B, the tipping device is lifted from the platen D using the lifting element H.

[0185] In steps D and E, the base element rotates about the lifting arm 30 until the centerline of the base element is horizontal, as shown in step E. In this position, the support portion 304 of the lifting arm 30 extends along the radial side of the base element. Advantageously, in the configuration shown in step E, the lifting line from the lifting element H follows the center of gravity (CoG) of the base element and is at least closer to the center of gravity than in previous embodiments. This enables easier insertion of the base element into the pile.

[0186] In step F, when in the configuration shown in step E, the base element is inserted into the end of the pile FP.

[0187] In step G, the locking element 58 of the support portion 304 of the lifting arm 30 is disconnected from the opening 56 of the lifting element controller 55, and the lifting element controller 55 rotates about the second axis 1002” to the first position.

[0188] In steps H and I, the pile FP is tipped by rotating the base element relative to the lifting arm 30. As can be seen in step I, the loading line from the lifting element H follows the centerline of the base element.

[0189] Those skilled in the art will understand that the lifting element controller 55 allows the center of gravity (CoG) of the tipping device 1 to shift, especially when inserting the tipping device 1 into a horizontally positioned pile. This applies to both non-flanged piles CP and flanged piles FP. When the central axis of the base element 20 of the tipping device 1 is aligned horizontally with the pile, the CoG shifts towards the lifting element controller 55. This allows for the pre-separation of some additional components, such as additional connection parts on the tipping device 1 itself or any additional tools, such as rigging tools, when tipping the pile.

[0190] Various modifications to the above-described embodiments are possible. For example, the structure of the base element can be different from the structure of the base element described above. For example, the intermediate ring 202 can be replaced by a straight plate extending between the webs connecting the outer ring 201 and the inner ring 203. In fact, such an arrangement is shown in Figure 7 and Figure 10 Alternatively, the base element may not include concentric rings but may instead be formed by a plurality of arms having connection elements at their radially outer ends, and the plurality of arms are rotatably coupled to the lifting arm 30 about the first axis A1. The arms of the base element can be semi-circular in shape such that the connection elements extend circumferentially along a portion of the radial inner surface of the pile.

[0191] It should be understood that the embodiments described with reference to Figures 21 to 2 3, in particular the lifting element controller and the lifting arm, can be used in other configurations of the tipping device, for example in a configuration having a base element that cannot rotate relative to the lifting arm about a first axis.

[0192] Those skilled in the art will also understand that any number of combinations of the foregoing features and / or the features shown in the drawings provide distinct advantages over the prior art and are therefore within the scope of the invention described herein.

Claims

1. A turning device for turning a tubular pile, the turning device comprising: a base element for insertion into an end of the tubular pile and for extending along an interior of the tubular pile; a plurality of connecting elements connected to the base element and configured to engage one or more inner surfaces of the tubular pile; and a lifting arm for coupling the turning device to a lifting element; wherein the lifting arm is rotatably coupled to the base element, the lifting arm being capable of rotating relative to the base element about a first axis, wherein the first axis is a central axis of the base element and is substantially parallel to a central axis of the tubular pile in use.

2. The flipping device according to claim 1, comprising a mounting element, wherein, The lifting arm is rotatably coupled to the base element via the mounting element, wherein the mounting element is rotatably coupled to the base element, the mounting element being capable of rotating relative to the base element about the first axis.

3. The flipping device according to claim 1 or 2, wherein, The lifting arm is capable of rotating relative to the base element about a second axis, wherein the second axis is substantially perpendicular to the first axis.

4. The turnover device according to claim 3, wherein, The lifting arm is rotatably coupled to the mounting element, wherein the lifting arm is capable of rotating relative to the mounting element about the second axis.

5. The turning device according to any one of claims 3 or 4, comprising a lifting arm drive device for causing the lifting arm to rotate relative to the base element about the second axis.

6. The flipping device according to claim 5, wherein, The lifting arm drive device is a linear actuator, wherein the linear actuator is pivotally connected to the lifting arm at a first end at a position spaced from the second axis, and is pivotally connected to the mounting element at a second end.

7. The turning device according to any one of claims 3 to 6, comprising a drive device located between the mounting element and the base element for controlling a rotational movement of the base element relative to the mounting element about the first axis.

8. The turnover device according to claim 7, wherein, The drive device comprises a pinion and a gear, wherein the gear is rotatably mounted to the mounting element, and the pinion is provided in the base element.

9. The flipping device according to any one of the preceding claims, wherein, Each connecting element comprises: an engaging portion including a coupling portion having a radially inwardly facing coupling surface; and a connecting portion including: a radially outer portion having a radially outwardly facing coupling surface, wherein the coupling surface of the engaging portion abuts the coupling surface of the radially outer portion of the connecting portion, and wherein each connecting portion and the corresponding engaging portion are capable of moving in a radial direction; and a first connecting means located at a radially outer end of each connecting portion for connection to an axial locking means for connecting between the connecting portion and the engaging portion for restricting axial movement of the engaging portion relative to the connecting portion, And wherein, the base element includes second connecting means for connection to an actuating means, the actuating means being connectable between the base element and the engaging portion for moving the engaging portion along the coupling surface of the connecting portion.

10. The turnover device according to claim 9, wherein, The coupling portion of the engaging portion is a tapered portion, wherein the radial thickness of the tapered portion tapers away from the side of the base element on which the lifting arm is located, and wherein the radial thickness of the radially outer portion of the connecting portion tapers towards the side of the base element on which the lifting arm is located.

11. The flipping device according to any one of claims 9 or 10, wherein, Each connecting element includes another connecting portion parallel to the connecting portion, and wherein each engaging portion includes another coupling surface, and wherein the another coupling surface of each engaging portion abuts the coupling surface of the another connecting portion.

12. The tipping device according to any one of claims 9 to 11, comprising a drive shaft located between the radially inner end of each connecting portion and the base element, each drive shaft being configured to translate the corresponding connecting portion in the radial direction.

13. The tipping device according to any one of the preceding claims, comprising at least one guiding element attached to the base element, the at least one guiding element being for contacting the radially inner surface of the tubular pile in use to control the radial position of the base element relative to the tubular pile.

14. The turnover device according to claim 13, wherein, The at least one guiding element includes at least two centering devices, each centering device being slidably connected to the base element in the radial direction, located on a respective radial half of the base element and being able to extend from the radially outer surface of the base element.

15. A method of tipping a tubular pile, the method comprising the steps of: a) inserting the base element into the first end of the tubular pile; b) rotating the base element about a first axis to a desired orientation relative to the tubular element, the first axis being the central axis of the base element and being substantially parallel to the central axis of the tubular pile; c) moving the engaging portion of each of the plurality of connecting elements radially outwards to engage one or more inner surfaces of the tubular pile; d) lifting the first end of the tubular pile by lifting the lifting arm by means of a lifting element connected to the lifting arm, the lifting arm being connected to the base element.

16. The method according to claim 15 further comprises step a1), wherein, Step a1) is before step a), and step a1) includes lowering the base element, the plurality of connecting elements and the lifting arm to a position adjacent to the first end of the tubular pile, and rotating the base element and the plurality of connecting elements relative to the lifting arm about a second axis to substantially align the first axis and the central axis of the tubular pile, the second axis being perpendicular to the first axis.

17. The method according to any one of claims 15 or 16, wherein Step d) includes rotating the lifting arm relative to the base element and the plurality of connecting elements about the second axis or a second axis perpendicular to the first axis while the first end of the tubular pile is suspended by the tipping device.

18. A method of deploying a tubular pile, the method including the method of flipping the tubular pile according to any one of claims 15 to 17, the method including the subsequent step of rotating the base element, the plurality of connecting elements and the tubular pile about the first axis to adjust the orientation of the tubular pile.

19. A flipping device for flipping a tubular pile, the flipping device including: A base element for insertion into an end of the tubular pile and for extending along the interior of the tubular pile; A lifting arm connected to the base element, the lifting element for coupling the flipping device to a lifting element; A plurality of connecting elements connected to the base element and configured to engage one or more inner surfaces of the tubular pile, wherein each connecting element includes: An engaging portion including a coupling portion, wherein the coupling portion has a radially inwardly facing coupling surface; and A connecting portion including: A radially outer portion, wherein the coupling surface of the engaging portion abuts the coupling surface of the radially outer portion of the connecting portion, and wherein each connecting portion and the corresponding engaging portion are movable in the radial direction; and A first connecting device located at the radially outer end of each connecting portion, the first connecting device for connection to an axial locking device for connection between the connecting portion and the engaging portion to limit axial movement of the engaging portion relative to the connecting portion, And wherein the base element includes a second connecting device for connection to an actuating device, the actuating device being connectable between the base element and the engaging portion to cause the engaging portion to move along the coupling surface of the connecting portion.

20. The turnover device according to claim 19, wherein, The coupling portion of the engaging portion is a tapered portion, wherein the radial thickness of the tapered portion tapers away from the side of the base element on which the lifting arm is located, and wherein the radial thickness of the radially outer portion of the connecting portion tapers towards the side of the base element on which the lifting arm is located.

21. The turnover device according to any one of claims 19 or 20, wherein, At least one connecting portion includes two parallel connecting portions, and wherein each engaging portion includes a first coupling surface and a second coupling surface, each of the first coupling surface and the second coupling surface abutting the coupling surface of a respective one of the radially outer ends of the corresponding connecting portions.

22. The flipping device according to any one of claims 19 to 21, including a drive shaft located between the radially inner end of each connecting portion and the base element, each drive shaft configured to move the corresponding connecting portion and engaging portion in the radial direction.

23. The flipping device according to any one of claims 19 to 22, wherein, The lifting arm is rotatably coupled to the base element, the lifting arm being rotatable relative to the base element about a first axis, wherein the first axis is the central axis of the base element and is substantially parallel to the central axis of the tubular pile in use.

24. The turnover device according to claim 23, comprising a mounting element, wherein, The lifting arm is rotatably coupled to the base element via the mounting element, wherein the mounting element is rotatably coupled to the base element and the mounting element is capable of rotating relative to the base element about the first axis.

25. The flipping device according to any one of claims 24, wherein, The lifting arm is capable of rotating relative to the base element about a second axis, wherein the second axis is substantially perpendicular to the first axis.

26. The turnover device according to claim 25, wherein, The lifting arm is rotatably coupled to the mounting element, wherein the lifting arm is capable of rotating relative to the mounting element about the second axis.

27. The tipping device according to any one of claims 25 or 26, comprising a lifting arm drive device for rotating the lifting arm relative to the base element about the second axis.

28. The turnover device according to claim 27, wherein, The lifting arm drive device is a linear actuator, wherein the linear actuator is pivotally connected to the lifting arm at a first end at a position spaced from the second axis and is pivotally connected to the mounting element at a second end.

29. The tipping device according to any one of claims 23 to 28, comprising a drive device located between the mounting element and the base element for controlling the rotational movement of the base element relative to the lifting arm about the first axis.

30. The turnover device according to claim 29, wherein, The drive device comprises a pinion and a gear, wherein the gear is rotatably mounted to the mounting element and the pinion is provided in the base element, or wherein the gear is rotatably mounted to the base element and the pinion is provided in the mounting element.

31. A tipping system for tipping a tubular pile, the tipping system comprising: The tipping device according to any one of claims 12 to 14 or 19 to 30; An axial locking device; And An actuating device; Wherein each connecting element has a friction lifting configuration and a flange lifting configuration.

32. The flipping system according to claim 31, wherein, In the friction lifting configuration, the engaging portion is connected to the actuating device and the actuating device is connected to the connecting device of the base element.

33. The flipping device according to any one of claims 31 or 32, wherein, In the flange lifting configuration, the engaging portion is connected to the axial locking device and the axial locking device is connected to the corresponding at least one connecting portion.

34. The turnover device according to any one of claims 31 to 33, wherein, Each connecting element comprises: The engaging portion or portions; At least one rack capable of being attached to the radial outer surface of the corresponding engaging portion; Wherein, in the friction lifting configuration, the at least one rack is attached to the radial outer surface of the engaging portion.

35. The flipping device according to any one of claims 31 to 34, wherein, Each connecting element comprises: The engaging portion or portions; At least one axial guide rail which in use can be attached to the axial surface of the corresponding engaging portion adjacent to the radial outer surface of the corresponding engaging portion, the axial surface facing the lifting arm; Wherein, in the flange lifting configuration, the at least one axial guide rail is attached to the engaging portion.

36. The flipping system according to claim 35, wherein, Each connecting element includes at least one radial guide rail, the at least one radial guide rail being capable of being attached to the outer radial surface of the respective engagement portion, and wherein, in the flange lifting configuration, at least one radial guide rail is attached to each engagement portion.

37. The flipping system according to any one of claims 35 or 36, wherein, In the flange lifting configuration, the engagement portion is connected to the axial locking device, and the axial locking device is connected to the respective at least one connecting portion.

38. A method of flipping a tubular pile using a flipping system according to any one of claims 31 to 37, the method comprising the steps of: a) connecting each of the plurality of engagement portions to a respective one or more connecting portions to form a respective connecting element; b) inserting the base element into the first end of the tubular pile; c) moving the plurality of connecting elements radially outwards to engage with one or more inner surfaces of the tubular pile; d) lifting the first end of the tubular pile by lifting the lifting arm using a lifting element connected to the lifting arm, the lifting arm being connected to the base element.

39. The method according to claim 38 when dependent on any one of claims 31 to 37, wherein, Step a) includes configuring the connecting element in the friction lifting configuration or the flange lifting configuration.

40. The method according to claim 39, wherein, Configuring the connecting element in the friction lifting configuration includes detaching any radial guide rails and / or axial guide rails attached to the engagement portion and attaching at least one rack to each engagement portion, and wherein configuring the connecting element in the flange lifting configuration includes detaching any racks attached to the engagement portion and attaching at least one axial guide rail to each engagement portion.

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