Standing device

Abstract

The invention further relates to a method for erecting tubular piles (FP, CP) using this device, the method comprising: a base element (20) inserted into an end of the tubular pile and extending along the inside of the tubular pile; a plurality of connection elements connected to the base element and configured to engage one or more inner surfaces of the tubular pile; and a lifting arm (30) connecting the erecting device to a lifting element (H), the lifting arm being rotatably connected to the base element, the lifting arm being rotatable relative to the base element about a first axis (A1), the first axis being a central axis of the base element and being substantially parallel to the central axis of the tubular pile in use. The invention further relates to a method for erecting tubular piles using this device.

Description

[Technical Field]

[0001] The present invention generally relates to a raising device and a method for raising tubular piles. [Background technology]

[0002] Due to their length, tubular piles, such as monopiles, are typically transported in a horizontal orientation. This means that when they are installed vertically, they must be erected. Due to the size and weight of the tubular piles, such an operation can prove complex, time-consuming, and expensive in terms of capital costs of equipment and operating time.

[0003] Known types of tubular piles include conical, non-flanged piles, which have an open end without a flange, and flanged piles, which have an inwardly projecting flange at one end. The process of erecting flanged piles typically involves inserting an erection tool into the flanged end of the pile and engaging a connecting element of the erection tool with the flange, effectively lifting the tubular pile by gripping the flange. Erecting non-flanged piles typically involves inserting an erection tool into the narrowest end of the pile and using a radially extending connecting element that grips the inner radial surface of the pile in a frictional manner. Obviously, both of these erection tools are large, complex to operate, and expensive to purchase, transport, and maintain.

[0004] Furthermore, both of these types of raising tools apply significant pressure and bending forces at the point where the connection element engages with the pile, which can cause damage to the pile if, for example, the engagement occurs at a flaw or relatively weak part of the structure, for example a welded joint or the like of the pile.

[0005] These erection tools may be used to install the piles in the ground where they will be driven. This means that the engagement between the pile and the erection device that is achieved at the start of the erection operation is also used while installing the pile in the ground. Obviously, this may not be optimal as the erection tool is inserted into the pile when it is positioned horizontally, so it may be difficult to align the erection tool with the tubular pile, for example because the position of the centre of the erection tool does not line up with the position of the centre of the pile. Summary of the Invention

[0006] It would therefore be advantageous to overcome at least some of these limitations.

[0007] Accordingly, a first aspect of the present invention is an upending device for upending tubular piles, comprising: a base element inserted into the end of the tubular pile and extending along the inside of the tubular pile; a plurality of connection elements connected to the base element and configured to engage one or more interior surfaces of the tubular pile; a lifting arm connecting the erection device to the lifting element; Equipped with the lifting arm is rotatably coupled to the base element, the lifting arm being rotatable relative to the base element about a first axis, the first axis being a central axis of the base element and being substantially parallel to a central axis of the tubular pile in use; To provide a raising device.

[0008] Advantageously, the base element and the connection elements can be rotated about a first axis to avoid engagement between the connection elements at a non-optimal location, such as a weld on the pile, or to at least reduce the risk of engagement between the connection elements at such a non-optimal location. Even more advantageously, the base element and the connection elements can be rotatable about a first axis to vertically align two of the connection elements when inserted into the tubular pile. This can assist in centralizing the raising device within the pile, since engagement of the vertically aligned connection elements can be used to vertically align the raising device. Furthermore, engaging these vertically aligned connection elements with the tubular pile first can further assist in centering the raising device within the tubular pile. Even more advantageously, rotating the base element and the connection elements about the first axis can change the heading of the pile during deployment, allowing for fine adjustment of the heading of the pile. This can be advantageous in controlling the direction of the pile tip as it is lowered into the ground where it will be driven. This can also be advantageous when the pile is connected along its length to an upper portion (e.g., a tower or transition piece), e.g., bolted or using a wedge connection, so that a first lower portion of the pile is supported upright on a surface and a second upper portion is lowered toward the first lower portion to bolt the second upper portion and the first lower portion together. Rotating the second upper portion about the first axis, for example, can easily align the connection holes in the first and second portions of the pile to connect the two portions together.

[0009] Each of the plurality of connection elements may be radially movable. Each of the plurality of connection elements may be movable to a radially retracted position. Advantageously, by inserting the base element when the connection elements are in the radially retracted position, the base element and connection element can be inserted into an end of a pile having an inner diameter smaller than the diameter at which the connection elements engage the pile. Further advantageously, this makes the erection device suitable for use with flanged piles and conical, non-flanged piles. That is, this makes the erection device suitable for insertion into the flanged end of a flanged pile and into the narrowest end of a conical, non-flanged pile.

[0010] The lifting device may include an attachment element. The lifting arm may be rotatably coupled to the base element via the attachment element. The attachment element may be rotatably coupled to the base element. The attachment element may be rotatable relative to the base element about a first axis.

[0011] The lift arm may be rotatable relative to the base element about a second axis, which may be substantially perpendicular to the first axis.

[0012] Advantageously, the base element and the connection element can be rotated relative to the lifting arm about a second axis so that the erection device is supported by the lifting element in order to insert the base element and the connection element into the end of the pile while the pile is horizontal.

[0013] The lift arm may be rotatably coupled to the mounting element. The lift arm may be rotatable relative to the mounting element about a second axis.

[0014] The base element may include at least two interconnected concentric rings. The mounting element may extend through a center of an 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 axially supported by an axial bearing relative to the inner ring. The mounting element may be radially supported by at least two radial bearings relative to the inner ring. The at least two concentric rings may be interconnected by a web.

[0015] The base element may include three interconnected concentric rings. A plurality of connecting elements may connect the outer ring of the concentric rings to 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 supported axially of the inner ring by an axial bearing. The mounting element may be supported radially of the inner ring by at least two radial bearings. The mounting element may be rotatably coupled to the inner ring of the concentric rings. The outer ring and middle ring of the concentric rings may be interconnected by a plurality of outer webs. The middle ring and inner ring of the concentric rings may be interconnected by a plurality of inner webs.

[0016] Advantageously, providing a base element with concentric rings allows the base element to have a high degree of axial symmetry, thereby enabling the base element and connection elements to be used in multiple orientations about the first axis, thereby improving maneuverability. Furthermore, this can mean that the base element is substantially balanced about its central axis when the central axis is vertically oriented. This can reduce the power input required to rotate the base element about the first axis, even when a pile is suspended from the raising device. Further advantageously, the connections between the connection elements and both the inner and outer rings can improve the stability of the raising device during raising operations, since each connection element attempts to resist bending moments from the pile through its connections to both the inner and outer rings.

[0017] The lifting device may include a lifting arm drive device that is capable of rotating the lifting arm about a second axis. The lifting arm drive device is capable of rotating the lifting arm relative to the base element about the second axis.

[0018] The lift arm drive can be a linear actuator. The linear actuator can be pivotally connected at a first end to the lift arm. The linear actuator can be pivotally connected at the first end to the lift arm at a location spaced apart from the second axis. The linear actuator can be pivotally connected at a second end to a mounting element. The linear actuator can be pivotally connected at the second end to a mounting element at a location spaced apart from the first axis.

[0019] Advantageously, the base element and the connecting element can be rotated about a second axis for insertion into the pile while the pile is horizontal.

[0020] The raising device may include a drive means disposed between the mounting element and the base element, the drive means being capable of controlling rotational movement of the base element relative to the mounting element about the first axis.

[0021] The drive means may comprise a pinion and a gear rack. The pinion may be rotatably mounted on the mounting element. At least two pinions may be rotatably mounted on the mounting element. Three pinions may be rotatably mounted on the mounting element, where one of the pinions is an emergency, backup, or dummy gear. The gear rack may be provided on or in the base element. The erector may comprise pinion rotation means, such as an electric motor, for rotating the pinion. The erector may comprise a plurality of pinion rotation means, such as electric motors, each pinion rotation means rotating one pinion. Advantageously, these drive means allow fine motion control of the rotation of the base element relative to the mounting element, or fine position control.

[0022] Each connecting element may comprise an engaging portion. The engaging portion may comprise a coupling portion. The coupling portion may have a coupling surface facing radially inward. Each connecting element may comprise a connecting portion. The connecting portion may comprise a radially outer portion. The radially outer portion may have a coupling surface facing radially outward. The connecting portion may be movable. The connecting portion may be movable in use radially relative to the tubular pile between a radially outer position and a radially inner position. The connecting portion may be movable in use radially relative to the tubular pile between a radially outer position and a radially inner position so as to abut a coupling surface of the engaging portion against a coupling surface of the radially outer portion of the connecting portion. The coupling surface of the engaging portion may abut against a coupling surface of the radially outer portion of the connecting portion. Each connecting portion and the corresponding engaging portion, i.e., each connecting element, may be movable in the radial direction. The connecting portion may comprise a first connecting means at a radially outer end of each connecting portion. The first connecting means may be connected to an axial locking means. The axial locking means may be connected between the connecting portion and the engaging portion. An axial locking means can be connected between the connecting portion and the engaging portion to limit axial movement of the engaging portion relative to the connecting portion. The base element can include second connecting means. The base element can include second connecting means connected to actuating means connectable between the base element and the engaging portion to move the engaging portion along the coupling surface of the connecting portion.

[0023] Advantageously, the same raising device can be used with both flanged and non-flanged piles, i.e., by providing the first and second connection means as described, when the raising device is used with flanged piles, an engagement portion can be connected to the radially outer end of each connection portion using an axial locking means, and when the raising device is used with non-flanged conical piles, an actuation means can be connected between each engagement portion and the second connection means on the base element, thereby providing a more versatile raising device.

[0024] The connecting portion of the engagement portion may be a tapered portion. The radial thickness of the tapered portion may be gradually reduced. The radial thickness of the tapered portion may be gradually reduced away from the side of the base element where the lifting arm is arranged. The radial thickness of the radially outer portion of the connection portion may be gradually reduced. The radial thickness of the radially outer portion may be gradually reduced towards the side of the base element where the lifting arm is arranged.

[0025] Each connection element may include two parallel connection portions. Each engagement portion may include two parallel coupling portions. Each engagement portion may include two parallel tapered portions. The tapered portions may have radial thicknesses that gradually decrease. The tapered portions may have radial thicknesses that gradually decrease away from the side of the base element where the lifting arm is located. Each connection portion or tapered portion may have a coupling surface facing radially inward. Each coupling surface of the engagement portion may abut against a coupling surface of a radially outer portion of a respective one of the connection portions of the connection element. Each coupling surface of the engagement portion may abut against a coupling surface of a radially outer portion of a respective one of the connection portions of the connection element when the connection portion is in the radially outer position. Each connection element may include a drive plate connected to a radially inner end of the or each connection portion. Each connection element may include a drive shaft. Each drive shaft may pass through a hole in the respective drive plate. Each drive shaft may include a flange or an enlarged head at one end that is attached or attachable to the drive plate. Each drive shaft can engage with the base element such that rotation of the drive shaft moves the drive plate radially. Each drive shaft can have an external thread, for example a trapezoidal thread. Each connecting element can have a gear nut. Each gear nut can have an external gear, for example a spur gear or a helical gear. Each gear nut can have an internal thread, for example a trapezoidal thread. Each connecting element can have a drive pinion. Each drive pinion can have a drive pinion drive means, for example a hydraulic drive. 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 respective drive shaft. Each gear nut can be axially fixed to the base element, for example a drive web. Rotation of each pinion can rotate the respective gear nut, thereby driving the respective drive shaft radially relative to the base element.

[0026] The base element may include at least two interconnected concentric rings. Each ring may include a plurality of holes extending therethrough. Each hole may correspond to a connecting element. Each hole in an outer ring of the concentric rings may be aligned with a corresponding hole in an inner ring of the concentric rings. A connecting portion of each connecting element may extend through the hole in each ring. A connecting portion of each connecting element may extend through the hole in each ring at both a radially outer position and a radially inner position. The holes may provide guide portions. The holes may provide guide portions for guiding movement of the respective connecting portions. Two holes may provide guide portions for guiding movement of the respective connecting portions between the radially outer position and the radially inner position.

[0027] Advantageously, each connection can be supported in a bent state by holes in the outer and intermediate rings.

[0028] The at least two interconnected concentric rings may include three interconnected concentric rings. An outer ring and a middle ring of the three concentric rings may be provided with holes. The lifting arm may be rotatably connected to an inner ring of the three concentric rings.

[0029] The at least one connecting portion may include two parallel connecting portions, each of which may include a first coupling surface and a second coupling surface, and the coupling surfaces of the engaging portions may abut the coupling surfaces of the radially outer ends of the corresponding connecting portions.

[0030] The raising device may include a drive shaft disposed between a radially inner end of each connecting portion and the base element, and each drive shaft may be configured to move (translate) its respective connecting portion radially.

[0031] The raising device may comprise at least one guide element. The raising device may comprise at least one guide element attached to the base element. The raising device may comprise at least one guide element attached to the base element that, in use, contacts an inner radial surface of the tubular pile to control the radial position of the base element relative to the tubular pile.

[0032] The at least one guide element may include at least two centralizers. Each centralizer may be radially slidably connected to the base element. Each centralizer may be disposed on a respective radial half of the base element. Each centralizer may be extendable from a radial outer surface of the base element. The erector may include centralizer drive means for driving the centralizers.

[0033] In an embodiment, the lifting device includes a lifting element control rotatably connected to the lifting arm about a third axis. The third axis can be parallel to the second axis. The third axis can be perpendicular to the first axis. The lifting element control can include a first connecting element and a second connecting element connecting spaced apart plates of the lifting element control to each other. The first connecting element and the second connecting element can be circular cross-section elements, such as tubes or lobes, connected at opposite ends to the spaced apart plates. The connecting elements of the lifting element control and the spaced apart plates can define openings through which the lifting element can pass or extend in use.

[0034] The lifting element control can rotate about the second axis between a first position and a second position. In the first position, the opening of the lifting element control can be vertical, e.g., the plane of the opening can be perpendicular to the central axis of the lifting arm, e.g., an axis or line extending between the third axis and the second axis. In the second position, the opening can be at an oblique angle, e.g., the plane of the opening can be oblique to the central axis of the lifting arm, e.g., an axis or line extending between the third axis and the second axis.

[0035] Advantageously, the lifting line applied by the lifting element can be offset from the centerline of the base element by rotating the lifting element about a third axis due to one of the connection elements intersecting the lifting line from the lifting point of the lifting arm.

[0036] The lifting element control may comprise a locking means for locking the lifting element control to the lifting arm in the second position, i.e., preventing relative rotational movement about the third axis. The locking means may lock the lifting element control in the second position. Advantageously, when the lifting element control is locked in the second position, the lifting line of the lifting element is more closely aligned with the centerline of the base element, or may be aligned with the centerline of the base element, while the base element is oriented such that the centerline of the base element is parallel to the centerline of the pile resting on the deck.

[0037] According to a further aspect of the present invention, there is provided an erecting device for erecting tubular piles, comprising: a base element inserted into the end of the tubular pile and extending along the inside of the tubular pile; a plurality of connection elements connected to the base element and configured to engage one or more interior surfaces of the tubular pile; a lifting arm for connecting the erector to the lifting element, the lifting arm being rotatably connected to the base element about a lifting arm axis; a lifting element control rotatably connected to the lifting arm about a lifting element control axis, the lifting element control axis being parallel to the lifting arm axis; A raising device is provided, comprising:

[0038] The lifting element control can be the lifting element control described above. The lifting arm axis can be the second axis described above. The lifting element control axis can be the third axis described above.

[0039] According to a further aspect of the present invention, there is provided a method of erecting a tubular pile, comprising the steps of: a) inserting a base element into a first end of a tubular pile; b) rotating the base element to a desired orientation relative to the tubular element about a first axis, the first axis being a central axis of the base element and substantially parallel to a central axis of the tubular pile; c) moving the engaging portions of each of the plurality of connecting elements radially outward to engage with one or more inner surfaces of the tubular pile; d) using a lifting element connected to the lifting arm to lift the first end of the tubular pile by lifting the lifting arm, the lifting arm being connected to the base element; A method is provided, comprising:

[0040] The method may further include step a1), which occurs prior to step a), and may include lowering the base element, the plurality of connection 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 connection 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 connection elements relative to the lifting arm about the second axis may substantially align (align) the first axis with a central axis of the tubular pile.

[0041] Step d) may include rotating the lifting arm relative to the base element and the plurality of connection 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 connection elements about the second axis or a second axis while the first end of the tubular pile is suspended by the raising device.

[0042] According to a further aspect of the present invention, there is provided a method of installing a tubular pile, the method comprising the above-described method of erecting a tubular pile, and a subsequent step of rotating the base element, the plurality of connecting elements and the tubular pile about a first axis to adjust the tip direction of the tubular pile.

[0043] According to a further aspect of the present invention, there is provided an erecting device for erecting tubular piles, comprising: a base element inserted into the end of the tubular pile and extending along the inside of the tubular pile; a lifting arm connected to the base element, the lifting arm connecting the erector to the lifting element; a plurality of connection elements connected to the base element and configured to engage one or more interior surfaces of the tubular pile; each connecting element comprising: an engagement portion including a coupling portion, the coupling portion having a coupling surface facing radially inward; A connection part; The connection portion is a radially outer portion, wherein a coupling surface of the engagement portion abuts a coupling surface of the radially outer portion of the connection portion, and each connection portion and corresponding engagement portion are radially movable; a first connecting means at a radially outer end of each connecting portion, the first connecting means being connected to an axial locking means connected between the connecting portion and the engaging portion and limiting axial movement of the engaging portion relative to the connecting portion; Equipped with the base element comprises second connecting means connected to actuating means connectable between the base element and the engaging portion for moving the engaging portion along the coupling surface of the connecting portion; A raising device is provided.

[0044] Advantageously, the same raising device can be used with both flanged and non-flanged piles, i.e., by providing the first and second connection means as described, when the raising device is used with flanged piles, an engagement portion can be connected to the radially outer end of each connection portion using axial locking means, and when the raising device is used with non-flanged conical piles, an actuation means can be connected between each engagement portion and the second connection means on the base element, thereby providing a more versatile raising device.

[0045] Further advantageously, the radial movement of the connection and engagement portions allows the erector to be inserted into the end of a pile having an inner diameter smaller than the diameter at which the connection element engages the pile. That is, the base element can be inserted into the end of the pile when the connection element is in the radially retracted position. Again, this makes the erector suitable for use with flanged piles and conical flangeless piles. This reduces the complexity of operation, as the operation of the erector is similar for both configurations. This also reduces expenses, as only one erector needs to be acquired and maintained. This also reduces the amount of space required for the erector, for example, on an offshore vessel.

[0046] The connecting portion of the engagement portion may be a tapered portion. The radial thickness of the tapered portion may be gradually reduced. The radial thickness of the tapered portion may be gradually reduced away from the side of the base element where the lifting arm is arranged. The radial thickness of the radially outer portion of the connection portion may be gradually reduced. The radial thickness of the radially outer portion may be gradually reduced towards the side of the base element where the lifting arm is arranged.

[0047] Each connection element may include two parallel connection portions. Each engagement portion may include two parallel coupling or tapered portions. The tapered portions may have a radial thickness that gradually decreases. The tapered portions may have a radial thickness that gradually decreases away from the side of the base element where the lifting arm is located. Each connection or tapered portion may have a coupling surface facing radially inward. Each coupling surface of the engagement portion may abut against a coupling surface of a radially outer portion of a respective one of the connection portions of the connection element. Each coupling surface of the engagement portion may abut against a coupling surface of a radially outer portion of a respective one of the connection portions of the connection element when the connection portion is in the radially outer position. Each connection element may include a drive plate connected to a radially inner end of the or each connection portion. Each connection element may include a drive shaft. Each drive shaft may pass through a hole in the respective drive plate. Each drive shaft may include a flange or an enlarged head at one end that is attached or attachable to the drive plate. Each drive shaft can engage with the base element such that rotation of the drive shaft moves the drive plate radially. Each drive shaft can have an external thread, for example a trapezoidal thread. Each connecting element can have a gear nut. Each gear nut can have an external gear, for example a spur gear or a helical gear. Each gear nut can have an internal thread, for example a trapezoidal thread. Each connecting element can have a drive pinion. Each drive pinion can have a drive pinion drive means, for example a hydraulic drive. 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 respective drive shaft. Each gear nut can be axially fixed to the base element, for example a drive web. Rotation of each pinion can rotate the respective gear nut, thereby driving the respective drive shaft radially relative to the base element.

[0048] The base element may include at least two interconnected concentric rings. Each ring may include a plurality of holes extending therethrough. Each hole may correspond to a connecting element. Each hole in an outer ring of the concentric rings may be aligned with a corresponding hole in an inner ring of the concentric rings. A connecting portion of each connecting element may extend through the hole in each ring. A connecting portion of each connecting element may extend through the hole in each ring at both a radially outer position and a radially inner position. The holes may provide guide portions. The holes may provide guide portions for guiding movement of the respective connecting portions. Two holes may provide guide portions for guiding movement of the respective connecting portions between the radially outer position and the radially inner position.

[0049] The at least two interconnected concentric rings may include three interconnected concentric rings. An outer ring and a middle ring of the three concentric rings may be provided with holes. The lifting arm may be rotatably connected to an inner ring of the three concentric rings.

[0050] The at least one connection portion may include two parallel connection portions. The at least one coupling surface of each engagement portion may be two coupling surfaces of the engagement portion. The at least one coupling surface of each engagement portion may be two coupling surfaces of the engagement portion that respectively abut coupling surfaces at radially outer ends of one corresponding connection portion.

[0051] The raising device may include a drive shaft disposed between a radially inner end of each connecting portion and the base element, and each drive shaft may be configured to move a respective connecting portion radially.

[0052] The lifting arm may be rotatably coupled to the base element. The lifting arm may be rotatable relative to the base element about a first axis. The first axis may be a central axis of the base element. The first axis may be substantially parallel to the central axis of the tubular pile in use.

[0053] The lifting device may include an attachment element. The lifting arm may be rotatably coupled to the base element via the attachment element. The attachment element may be rotatably coupled to the base element. The attachment element may be rotatable relative to the base element about a first axis.

[0054] The lift arm may also be rotatable relative to the base element about a second axis, which may be substantially perpendicular to the first axis.

[0055] The lift arm may be rotatably coupled to the mounting element. The lift arm may be rotatable relative to the mounting element about a second axis.

[0056] The base element may include at least two interconnected concentric rings. The mounting element may extend through a center of an 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 axially supported by an axial bearing relative to the inner ring. The mounting element may be radially supported by at least two radial bearings relative to the inner ring. The concentric rings may be interconnected by a plurality of webs.

[0057] The base element may comprise three interconnected concentric rings. A plurality of connecting elements may connect 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 axially of the inner ring by an axial bearing. The mounting element may be supported radially of the inner ring by at least two radial bearings. 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.

[0058] The lifting device may include a lifting arm drive device that is capable of rotating the lifting arm. The lifting arm drive device is capable of rotating the lifting arm relative to the base element about a second axis.

[0059] The lift arm drive device can be a linear actuator. The linear actuator can be pivotally connected at a first end to the lift arm. The linear actuator can be pivotally connected at the first end to the lift arm at a location spaced apart from the second axis. The linear actuator can be pivotally connected at a second end to a mounting element. The linear actuator can be pivotally connected at the second end to a mounting element at a location spaced apart from the first axis.

[0060] The pipe lifting device may include a drive means disposed between the mounting element and the base element, the drive means being capable of controlling rotational movement of the base element about the first axis relative to the lifting arm.

[0061] The drive means may comprise a pinion and a gear rack. The pinion may be rotatably mounted on the mounting element. The gear rack may be provided in or on the base element. At least two pinions may be rotatably mounted on the mounting element. Three pinions may be rotatably mounted on the mounting element, in which case one of the pinions is an emergency, backup, or dummy gear. The raising device may comprise pinion rotating means, such as an electric motor, for rotating the pinion. The raising device may comprise a plurality of pinion rotating means, such as electric motors, each pinion rotating means rotating a respective one of the pinions.

[0062] According to a further aspect of the present invention, there is provided a raising system, comprising: The above-mentioned raising device; axial locking means; an actuation means; Equipped with A lifting system is provided in which each connecting element has a friction lifting arrangement and a flange lifting arrangement.

[0063] In a friction lifting configuration, the engagement portion can be connectable or connectable to the actuation means when the actuation means is connected to the connection means of the base element, and in a flange lifting configuration, the engagement portion can be connectable or connectable to the axial locking means when the axial locking means is connected to the respective at least one connection portion.

[0064] Each connection element may comprise the above-mentioned engagement portion or portions. Each connection element may comprise at least one toothed strip. The at least one toothed strip may be attachable to a radially outer surface of the respective engagement portion. In a friction-type lifting configuration, at least one toothed strip is attached to each engagement portion. Each connection element may comprise at least one radial rail. The at least one radial rail may be attached or attachable to a radially outer surface of the respective engagement portion. The connection element may comprise at least one axial rail. The at least one axial rail may be attached or attachable to an axial surface of the respective engagement portion. The at least one axial rail may be attachable to an axial surface of the respective engagement portion near the radially outer surface of the respective engagement portion. The axial surface may face towards the lifting arm in use. In a friction-type lifting configuration, at least one axial rail may be attached to each engagement portion. In a flange-type lifting configuration, at least one radial rail may be attached to each engagement portion.

[0065] In the friction lifting configuration, the axial rail can be removed from each engagement portion. In the flange lifting configuration, the toothed strip can be removed from each engagement portion. In the friction lifting configuration, the toothed strip can be configured to engage with an inner radial surface of the pile. In the flange lifting configuration, the radial rail can be configured to abut or be near the inner radial surface of the pile, and the axial rail can be configured to abut an inner axial surface of a flange of the pile.

[0066] Advantageously, the engagement portions can be interchanged or reconfigured for use with flanged or non-flanged piles, for example the toothed strips and axial and radial rails can be interchangeable on a given engagement portion, allowing the erection device to be easily and quickly converted for use with flanged or non-flanged piles.

[0067] The plurality of engagement portions may include frictional engagement portions connectable to the actuation means when the actuation means is connected to the connection means of the base element, and each frictional engagement portion may comprise at least one toothed strip.

[0068] The plurality of engagement portions may include flange engagement portions, which are connectable to the axial locking means when the axial locking means are each connected to the at least one connection portion. Each flange engagement portion may include at least one axial rail. Each flange engagement portion may include at least one radial rail.

[0069] According to a further aspect of the present invention, there is provided a method of erecting a tubular pile using the erection system described above, comprising the steps of: a) connecting each of the plurality of engagement portions to one or more connection portions to form a respective connection element; b) inserting a base element into a first end of the tubular pile; c) moving the plurality of connecting elements radially outward to engage one or more inner surfaces of the tubular pile; d) using a lifting element connected to the lifting arm to lift the first end of the tubular pile by lifting the lifting arm, the lifting arm being connected to the base element; A method is provided, comprising:

[0070] Step a) can include configuring the connection element into either a friction lifting configuration or a flange lifting configuration. Configuring the connection element into the friction lifting configuration can include removing radial and / or axial rails attached to the engagement portions. Configuring the connection element into the friction lifting configuration can include attaching at least one toothed strip to each engagement portion. Configuring the connection element into the flange lifting configuration can include removing toothed strips attached to the engagement portions. Configuring the connection element into the flange lifting configuration can include attaching at least one axial rail to each engagement portion.

[0071] For the avoidance of doubt, any of the features described herein apply equally to any aspect of the invention, for example the raising device of the first aspect may include any one or more features of the raising device of the further aspect and / or the method may include any one or more features or steps associated with one or more features of the raising device of the further aspect.

[0072] Within the scope of this application, it is expressly intended that the various aspects, embodiments, examples, and alternatives described in the preceding paragraphs, claims, and / or the following description and drawings, particularly their individual features, may be employed individually or in any combination. That is, all embodiments and / or features of any embodiment may be combined in any manner and / or combination, so long as such features are not incompatible. For the avoidance of doubt, the words "may," "and / or," "e.g.," "for example," and any similar words used herein should be interpreted as open-ended, such that any features recited therein do not need to be present. Indeed, any combination of optional features is expressly contemplated, regardless of whether those features are explicitly claimed, so long as it does not depart from the scope of the present invention. Applicant reserves the right to modify any originally filed claim or to submit any new claim accordingly, including the right to amend any originally filed claim to depend on and / or incorporate any feature of any other claim, even if not originally claimed in that manner.

[0073] Embodiments of the present invention will now be described, by way of example only, with reference to the accompanying drawings, in which: [Brief explanation of the drawings]

[0074] [Figure 1] 1 is an isometric view of a lifting device according to the present invention in friction lift mode; FIG. [Figure 2] FIG. 2 is an isometric view of the erector of FIG. 1 in flange lifting mode. [Figure 3] FIG. 2 is a side view of the raising device of FIG. 1 in friction lift mode. [Figure 4] 2 is a side view of the erector of FIG. 1 in a flange-type lifting mode. FIG. [Figure 5] 2 is a center cross-sectional side view of the lifting device of FIG. 1 in a flange-type lifting mode with the connecting elements retracted; [Figure 6]2 is a center cross-sectional side view of the lifting device of FIG. 1 in a flange-type lifting mode with the connecting elements extended; [Figure 7] 2 is a detailed view of the drive means of the mounting element of the raising device of FIG. 1. FIG. [Figure 8] 2 is a detailed view of the connecting element of the raising device of FIG. 1 in the extended position. [Figure 9] 9 is a detailed view of the connecting element of FIG. 8 in a retracted configuration. [Figure 10] FIG. 9 is a top view of the connecting element of FIG. 8. [Figure 11] 2 is a top view of the raising device of FIG. 1 in a retracted configuration and positioned within a flanged tubular pile. [Figure 12] 12 is a cross-sectional view of the raising device of FIG. 11 along line BB in a retracted configuration and positioned within a flanged tubular pile. [Figure 13] 12 is a cross-sectional view of the raising device of FIG. 11 along line BB in an extended position and positioned within a flanged tubular pile. [Figure 14] 2 is a top view of the raising device of FIG. 1 in a retracted configuration and positioned within a flangeless tubular pile. [Figure 15] 15 is a cross-sectional view along line AA of the raising device of FIG. 14 in a retracted configuration and positioned within a flangeless tubular pile. [Figure 16] 15 is a cross-sectional view of the raising device of FIG. 14 along line AA in an extended position and placed within a flangeless tubular pile. [Figure 17] FIG. 10 is a detailed view of the connecting element with the engagement portion positioned in the flangeless pile. [Figure 18] FIG. 10 is a detailed view of the connecting element with the engagement portion positioned within the flanged pile. [Figure 19A] 2A to 2C are diagrams showing a process of erecting a pile using the erecting device of FIG. 1. [Figure 19B] 2A to 2C are diagrams showing a process of erecting a pile using the erecting device of FIG. 1. [Figure 19C] 2A to 2C are diagrams showing a process of erecting a pile using the erecting device of FIG. 1. [Figure 19D] 2A to 2C are diagrams showing a process of erecting a pile using the erecting device of FIG. 1. [Figure 19E] 2A to 2C are diagrams showing a process of erecting a pile using the erecting device of FIG. 1. [Figure 19F] 2A to 2C are diagrams showing a process of erecting a pile using the erecting device of FIG. 1. [Figure 19G] 2A to 2C are diagrams showing a process of erecting a pile using the erecting device of FIG. 1. [Figure 19H] 2A to 2C are diagrams showing a process of erecting a pile using the erecting device of FIG. 1. [Figure 19I] 2A to 2C are diagrams showing a process of erecting a pile using the erecting device of FIG. 1. [Figure 20A] FIG. 10 is a cross-sectional view of a raising device according to another embodiment of the present invention. [Figure 20B] FIG. 10 is a cross-sectional view of a raising device according to another embodiment of the present invention. [Figure 21] 10 is a side view of a raising device having a lifting element control according to another embodiment of the present invention. FIG. [Figure 22] FIG. 22 is an isometric view of the pile driving device of FIG. 21. [Figure 23] 22 is a diagram showing operational steps A to I of erecting a pile using the pile driving device of FIG. 21. FIG. DETAILED DESCRIPTION OF THE INVENTION

[0075] An upending device 1 is shown in the figures. The upending device 1 includes a base element 20, a plurality of connection elements, and a lifting arm 30. The base element 20 and the plurality of connection elements are inserted into and extend along the ends of the tubular piles FP, CP (e.g., as seen in Figures 11-18). Each connection element is connected to the base element 20 and configured to engage one or more inner surfaces of the tubular pile. The lifting arm 30 connects the upending device 1 to a lifting element H.

[0076] In this example, the base element 20 has three rings: an outer ring 201, a middle ring 202, and an inner ring 203. The rings 201, 202, and 203 are concentric with one another. A plurality of outer webs 204 connect the outer ring 201 and the middle ring 202 to one another. A plurality of inner webs 205 connect the middle ring 202 and the inner ring 203 to one another.

[0077] The lifting arm 30 is rotatably coupled to the base element 20. The lifting arm 30 is rotatable relative to the base element about a first axis A1. The first axis A1 is a 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 connection element are rotatable about the first axis A1 to align the connection element with a desired engagement point on one or more inner surfaces of the tubular pile to prevent engagement in an inappropriate area, such as a welding area. Thereafter, once the connection element is engaged with one or more inner surfaces of the tubular pile, the lifting element H can be used to lift the lifting arm 30 and erect the tubular pile. The erecting device 1 can also be used to deploy or downend piles. When the pile is fully suspended from the lifting element H, the base element 20 and the connecting element can be rotated about the first axis A1 to change the tip orientation of the tubular pile.

[0078] Advantageously, the base element 20 and the connection elements are rotatable about a first axis A1 to avoid engagement between the connection elements at a non-optimal location, such as a weld on the pile, or to at least reduce the risk of engagement between the connection elements at such a non-optimal location. Even more advantageously, the base element 20 and the connection elements can be rotatable about the first axis A1 during insertion into the tubular pile to vertically align two of the connection elements. This can assist in centering the erection device 1 within the pile, since engagement of the vertically aligned connection elements can be used to vertically align the erection device 1. Furthermore, prior engagement of these vertically aligned connection elements with the tubular pile can further assist in centering the erection device 1 within the tubular pile. Even more advantageously, the tip orientation of the pile can be changed during installation by rotating the base element 20 and the connection elements about the first axis A1. This allows fine adjustment of the tip orientation of the pile. This can be advantageous in controlling the direction of the pile tip as it is lowered into the ground where it will be driven. This can also be advantageous when the pile consists of two sections bolted together along its length, with the first section of the pile supported upright on a surface and the second section lowered towards the first section to bolt them together. Rotating the second section of the pile about the first axis can facilitate aligning the bolt holes in the first and second sections of the pile to connect the two sections together.

[0079] The lifting arm 30 can be made rotatable relative to the base element about the first axis A1 using any suitable means. In this example, the lifting device 1 has an attachment element 40. The attachment element 40 may also be called a swivel connector. The attachment element 40 provides an intermediate frame between the lifting arm 30 and the base element 20. The attachment element 40 is rotatably connected to the base element 20. The attachment element 40 is rotatable 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.

[0080] Mounting element 40 may be rotatably coupled to base element 20 using any suitable means. In this example, mounting element 40 is attached to base element 20 via a radial bearing, as described below.

[0081] In this example, the mounting element 40 includes two parallel connecting plates 401 with aligned holes therethrough. A first support web 402 extends between the two connecting plates 401. The first support web 402 is positioned adjacent to a first side of each connecting plate 401. As best shown in FIGS. 5 and 6 , the mounting element 40 includes an axial bearing, e.g., a thrust bearing 403, mounted at a first end, i.e., a first axial end, which is the end farthest from the holes through the connecting plates 401. A first radial bearing 405 is mounted adjacent to the axial bearing 403 and surrounding each connecting plate 401. A second radial bearing 406 is mounted spaced apart from the axial bearing 403 and surrounding each connecting plate 401. An actuator support 404 extends from one side of each connecting plate 401 between a second radial bearing 406 and the second end, i.e., the second axial end, of the mounting element 40. The second end is located at the axial end opposite the first end of the mounting element 40. The actuator support has two side plates that converge into two parallel mounting plates, each having a hole extending therethrough that aligns with a hole in the other mounting plate. Two anti-rotation tube mounts 407 are positioned on the outward surface of one of the connecting plates 401 between the second radial bearing 406 and the second end of the mounting element 40. The first radial bearing 405 and the second radial bearing 406 can be, for example, roller bearings, ball bearings, or radial plain bearings.

[0082] During assembly of the lifting device 1, the radial bearings 405, 406 are attached to the connecting plate 401 of the mounting element 40, and the radial bearings 405, 406 are arranged in the inner ring 203 of the base element 20. The axial bearing 403 of the mounting element 40 is attached to the connecting plate 401. The axial bearing 403 is arranged outside the inner ring 203 at one end of the inner ring 203. The actuator support 404 and the hole through the connecting plate are arranged outside the inner ring 203 at the other end of the inner ring 203.

[0083] The mounting element 40 may include any suitable means for rotating the mounting element 40 relative to the base element 20. In this example, as best shown in FIG. 7 , the raising device 1 includes a plurality of pinions 1201 or rotatable gears coupled to a pinion mounting plate 408 extending from the number of connecting plates 401 and the first support web 402 of the mounting element 40. The pinion mounting plate 408 is disposed between the second radial bearing 406 and the second end of the mounting element 40. The raising device 1 also includes gear rotation means 1202, which in this case is an electric or hydraulic motor coupled to each pinion 1201 and driving the rotation of the respective pinion 1201. In this example, three pinions 1201 are provided. In this example, one of the pinions 1201 is redundant but can be activated if one of the other pinions 1201 fails. A gear rack 1203 is attached to the radially inner surface of the inner ring 203 of the base element 20 and extends around its circumference. The gear rack 1203 is located near the end of the inner ring 203 that faces the lift arm 30. The pinion 1201 engages with the gear rack 1203 such that rotation of the pinion 1201 moves the pinion 1201 along the gear rack 1203, causing the mounting element 40 to rotate relative to the base element 20.

[0084] In this example, the lift arm 30 has two parallel plates 301 connected to each other by a central web 302. Each plate 301 of the lift arm 30 has a beam-shaped central section and bulb-shaped end sections at both ends of the central section. Each end section has a central hole. The central web 302 extends between the central sections of the parallel plates 301. The lift arm has an actuator mounting portion 303, which is an extension of each plate 301 located midway along the central section of the respective plate 301. Each actuator mounting portion 303 has a hole that passes through it, and this hole aligns with a hole in the actuator mounting portion 303 of the other plate 301. The lift arm 30 has a stand portion 304 that is an extension of one end section of each plate 301. The stand portion 304 extends from the side of each end section. It will be appreciated that other configurations of the lift arm 30 are possible.

[0085] In this example, the lifting arm 30 is rotatably coupled to the mounting element 40. The lifting arm 30 is rotatable 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 reference to FIGS. 19A to 19I, the lifting arm 30 is rotatable about the second axis A2 when the lifting element H raises and lowers the erection device. In addition, the base element 20 and the connection element are rotatable about the second axis relative to the lifting arm 30 so as to move the central axis of the base element 20 closer to horizontal in order to insert the base element 20 and the connection element into the tubular pile.

[0086] In this example, the rotatable joint between the lift arm 30 and the mounting element 40 includes bearings, such as roller or ball bearings, fixed in holes in each connecting plate 401 of the mounting element 40. A first shaft 1001 is rotatably supported between the two bearings. The first shaft 1001 passes through holes in the end sections of the plates 301 of the lift arm 30, which are the end sections that do not have the stand portion 304 extending therefrom. This allows the lift arm 30 to rotate relative to the mounting element 40 about a second axis A2.

[0087] In this example, the lift arm 30 is rotated relative to the mounting element 40 by a linear actuator 90. As described below with respect to Figures 19A-15I, the linear actuator 90 contracts, causing the base element 20 to rotate relative to the lift arm 30 and move the central axis of the base element 20 closer to horizontal.

[0088] An end connector on the end of the piston of the linear actuator 90 is rotatably connected to a 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 a hole in the mounting plate and the end connector of the linear actuator 90. A connection mechanism is located midway along the cylinder of the linear actuator 90 and is rotatably connected to the actuator mounting portion 303 of the lift arm 30. When the linear actuator 90 is in the retracted configuration, the axis of the lift arm 30, which passes through the center of the hole in each end section of the plate 301 of the lift arm 30, is substantially parallel to the radial direction of the rings 201, 202, 203 of the base element 20.

[0089] 8 and 9, a connection portion 601 of the connection element of the raising device 1 is shown. In this example, the connection portion 601 has a first radially inner end 602 and a second radially outer end 603 (shown on the right in FIGS. 8 and 9). The radially outer portion corresponding to the second end 603 is tapered along the height direction (the vertical direction in FIGS. 8 and 9). The radial thickness of the radially outer portion gradually decreases (i.e., the thickness decreases) toward the side of the base element 20 where the lifting arm 30 is disposed. The second end 603 has a connecting surface facing radially outward.

[0090] At one end of the coupling surface corresponding to the shorter length of the connecting portion 601 there is a protrusion 604 extending along the length of the connecting portion 601. At a second end, each connecting portion 601 has two connecting means 605. In this example, the connecting means 605 are blind holes or recesses that start from the coupling surface and extend along the length of the respective connecting portion 601. The holes or recesses may be threaded.

[0091] 11, in this example, each connector 601 is arranged in groups of two parallel connectors 601. However, it will be understood that a single connector 601 or three or more parallel connectors 601 may be used.

[0092] Each connection 601 is radially movable relative to the tubular pile in use, for example Figure 8 shows connection 601 in a more radially outward position compared to connection 601 in Figure 9.

[0093] Each connection 601 can be moved radially using any suitable means. In this example, each connection 601 is moved radially via a threaded drive shaft 607, and rotation of the threaded drive shaft 607 displaces the connection 601 relative to the base element 20.

[0094] As best shown in FIGS. 8-10 , in this example, each group of two connecting portions 601 is connected at a 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 hole through which a drive shaft 607 passes. The drive shaft 607 has an enlarged head sized to prevent it from passing through the central hole of its respective 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 external threads (not shown), such as trapezoidal threads. 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 nut 608 has internal threads (not shown), such as trapezoidal threads. Each gear nut 608 is mounted to the intermediate ring 202 of the base element 20 such that the gear nut 608 is rotatable but restricted in its axial movement. Each connecting element has a drive pinion 609. Each drive pinion has a drive pinion drive means 609a, for example a hydraulic drive or an electric motor. Each drive pinion 609 and drive pinion drive means 609a is mounted to a corresponding drive web 208 mounted to the base element 20, in this example disposed between each outer web 204 and extending between the outer ring 201 and the intermediate ring 202.

[0095] A side view of one of the drive webs 208, i.e., a circumferential view relative to the base element 20, is shown in Figures 8 and 9. Each drive pinion 609 engages with the external gear of a respective gear nut 608. The internal threads of each gear nut 608 engage with the external threads of a respective drive shaft 607. Rotation of each drive pinion 609 rotates the respective gear nut 608, thereby driving the respective drive shaft 607 radially relative to the base element 20. In this manner, the connection portion 601 is moved radially between an extended position as shown in Figure 8 and a retracted position as shown in Figure 9.

[0096] In this example, each ring of the base element 20 has a number of holes passing therethrough, each hole corresponding to a connecting element. Each hole in the outer ring 201 aligns with a corresponding hole in the middle ring 202. These holes provide guides for the radial movement of the respective connecting elements.

[0097] Specifically, the outer ring 201 has a plurality of first holes 206 arranged in groups of two. The first holes 206 extend radially through the outer ring 201. The middle ring 202 has a plurality of second holes 207 arranged in groups of two. The second holes extend radially through the middle ring 202. The distance between two first holes 206 in each group of two first holes 206, in a direction perpendicular to the radial direction of the outer ring 201, is the same as the distance between two second holes 207 in each group of two second holes 207, in a direction perpendicular to the radial direction of the middle ring 202. Each group of two first holes 206 is aligned with a corresponding group of two second holes 207. That is, a line passing through the center of one first hole 206 of each group of two first holes 206 and the center of a corresponding one second hole 207 of a corresponding group of two second holes 207 is parallel to the radial direction of the rings 201, 202, 203 of the base element 20. All of the first holes 206 and second holes 207 have substantially the same in-plane size and shape.

[0098] In this example, 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 on which the lifting arm 30 is located, there is a connection means 210. The connection means 210 is an extension of the respective drive web 208. The connection means 210 extend radially outward, axially away from the outer ring 201. Each connection means 210 has a connection hole 211 passing through it.

[0099] Each connecting portion 601 extends through a respective one of the first holes 206 in the outer ring 201 and a respective one of the second holes 207 in the middle ring 202. A first end 602 of each connecting portion 601 is located radially inside the middle ring 202, and a second end 603 of each connecting portion 601 is located radially outside the outer ring 201. In this manner, each driving plate 606 is disposed between the inner ring 203 and the middle ring 202.

[0100] 17 and 18, each connection element includes an engagement portion 70. In this example, the connection elements can be configured in a friction lifting configuration or a flange lifting configuration. The connection elements are shown in the friction lifting configuration in FIG. 17 and in the flange lifting configuration in FIG. 18. Generally, in the friction lifting configuration, the engagement portion 70 is configured to provide frictional engagement with the inner surface of the tubular pile, and in the flange lifting configuration, the engagement portion 70 is configured to provide engagement with a flange of the tubular pile.

[0101] In this example, the engagement portions 70 have connecting portions with a tapered profile, with a radial thickness that gradually decreases away from the side of the base element 20 on which the lift arm 30 is located. The connecting portion of each engagement portion 70 has a connecting surface that faces radially inward.

[0102] In use, the connecting portion 601 is radially movable to bring the engaging portion 70 into abutment against the inner surface of the tubular pile. As will become apparent from the following description, the amount of radial movement of the connecting portion 601 required to bring the engaging portion 70 into abutment against the inner surface of the tubular pile depends on a number of factors, for example, the configuration of the connecting element (i.e., a friction lifting configuration or a flange lifting configuration) and the inner diameter of the tubular pile.

[0103] In this example, the coupling surface of each engagement portion is formed by an elongated boss as described herein. As best shown in FIGS. 3 and 4, each engagement portion 70 has an opposing plate. Two parallel, elongated bosses 702 extend radially inward from the opposing plate. Each boss 702 is tapered, such that the thickness of the boss 702 gradually decreases with distance along the boss 702 as it moves away from the opposing plate. An actuator connection plate (not shown) having a hole therethrough extends between the two bosses 702. The radially inner surface of each boss 702 has axial locking means 803. In this example, the axial locking means 803 is in the form of two holes extending into each boss 702. A locking device, such as a pin, received within the axial locking means 803 is shown schematically in FIG. 18.

[0104] As best seen in Figure 3, engagement portion 70 in a friction lift configuration has two parallel toothed strips 701 connected to an opposing plate. Toothed strips 701 are tapered in that the thickness of toothed strip 701 gradually decreases over the length of each toothed strip 701 as it moves away from the opposing plate. Toothed strips 701 are parallel to and aligned with bosses 702. The taper of each toothed strip 701 is opposite the taper of each boss 702.

[0105] As best shown in Figure 4, the engagement portion 70 in the flanged lift configuration has two parallel radial rails 801 on the radially outer surface of the opposing plate. The strips 801 are parallel to and aligned with the bosses 702. An axial rail 804 is attached to the axial surface of each engagement portion 70 that faces the lift arm 30 in use. Each axial rail is aligned circumferentially with the base element 20. Each axial and radial rail may be a plain bearing, for example made from a composite material.

[0106] Each connecting element of the raising device 1 is switchable between a friction lifting configuration and a flange lifting configuration, thereby switching the raising device 1 between a friction lifting mode and a flange lifting mode. In Figures 1 and 3, the raising device 1 is in the friction lifting mode, and in Figures 2 and 4, the raising device 1 is in the flange lifting mode.

[0107] Configuring the erector 1 into the friction lifting mode comprises removing the radial rails 801 and / or axial rails 804 attached to the engagement parts 70 and attaching two toothed strips 701 to each engagement part 70. Locking devices received in the axial locking means 803 (if present) are removed. Configuring the erector 1 into the friction lifting mode also comprises attaching an actuator 1006 between the actuator connection plate of each engagement part 70 and the connection means 210 of each drive web 208 of the base element 20. The actuator 1006 moves the engagement part 70 along the coupling surface of the connection part 601, as will be further described below.

[0108] Configuring the erector 1 into the flange-type lifting mode includes removing the toothed strips 701 attached to the engagement portions, and attaching two axial rails 804 and two radial rails 801 to each engagement portion 70. Configuring the erector 1 into the flange-type lifting mode also includes inserting a locking device into the axial locking means 803 to connect each engagement portion 70 to each connection portion 601.

[0109] It will also be appreciated that the erector 1 may be switched between a friction lifting mode and a flange lifting mode by switching between a set of engagement portions 70 equipped with toothed strips 701 and a set of engagement portions 70 equipped with radial rails 801 and axial rails 804. In the friction lifting mode, each engagement portion of the set of engagement portions 70 equipped with toothed strips 701 is positioned on a respective connection portion 601, and one of the actuators 1006 is connected between the actuator connection plate of the engagement portion 70 and the connection means 210 of the respective drive web 208. The actuator 1006 moves the engagement portion 70 along the coupling surface of the connection portion 601, as will be further described below. In the flange lifting mode, each engagement portion 70 of the set of engagement portions 70 equipped with radial rails 801 and axial rails 804 is positioned on a respective connection portion 601, and a locking device is inserted into the axial locking means 803 to connect each engagement portion 70 to a respective connection portion 601.

[0110] Advantageously, by modifying the same erection device 1 configuration to be usable with both flanged and non-flanged piles FP and CP, operational complexity is reduced, since operation of the erection device 1 is similar in both configurations. This also reduces expenses, since only one erection device 1 needs to be acquired and maintained. This also reduces the amount of space required for the erection device 1, for example, on an offshore vessel (not shown). Further advantageously, the base element 20 and connection element can be inserted into the end of a pile having an inner diameter smaller than the diameter at which the connection element engages the pile by inserting the base element 20 while the connection element is in a radially retracted position. Again, this makes the erection device 1 suitable for use with flanged piles FP and non-flanged piles, such as non-flanged conical piles CP. That is, this makes the erection device 1 suitable for insertion into the flanged end of a flanged pile FP and into the narrowest end of a conical non-flanged pile CP.

[0111] 11-13 and 18, there is shown an assembled state of the erection device 1 for use with flanged piles FP. When the erection device 1 is used with flanged piles FP, one of the engagement parts 70, having attached radial rails 801 and axial rails 804, is attached to each group of two connection parts 601 via engagement between the axial locking means 803 of each engagement part 70 and the connection means 605 at the second end of each connection part 601. The axial locking means 803 limits the axial movement of the engagement parts 70 relative to the connection parts 601.

[0112] When the erection device 1 is used with a flanged pile FP, the base element 20 is positioned inside the flanged end of the pile FP. The connection elements are in a retracted position. The drive shaft 607 is then rotated to drive the connection portions 601 and the engagement portions 70 radially outward, so that the engagement portions 70 engage with the inner surface of the flange of the flanged pile FP. That is, the radial rails 801 attached to each engagement portion 70 abut or at least abut the inner radial surface of the pile. The axial rails 804 contact the inner axial surface of the pile flange.

[0113] 14 to 17, the erection device 1 is shown assembled for use with flangeless conical piles CP. When the erection device 1 is used with flangeless piles CP, one of the engagement portions 70, to which the toothed strip 701 is attached, abuts against each group of two connecting portions 601, so that the tapered second end of each connecting portion 601 slidably contacts the radially inner surface of each boss 702 of the engagement portion 70. The tapered boss 702 of each engagement portion 70 is oriented in the opposite direction to the taper of each connecting portion 601. That is, the thickest portion of each boss 702 of the engagement portion 70 contacts the coupling surface of the corresponding connecting portion 601 on the side closest to the shortest length of the connecting portion 601. One end of the linear actuator 1006 is connected to the connecting hole 211 via each connecting means 210 of the base element 20. The other end of each linear actuator 1006 is connected to the actuator connection plate of the corresponding engagement portion 70. As a result, extension and contraction of one of the linear actuators 1006 causes the respective engagement portion 70 to slide on the coupling surface of the respective connection portion 601, displacing the respective engagement portion 70 radially outward. The overhang portion 604 prevents the engagement portion 70 from sliding upward, which may occur during the erection phase.

[0114] When the erection device 1 is used with a flangeless pile CP, the base element 20 is positioned inside the narrowest end of the pile CP. The connection elements are in a retracted position. The drive shaft 607 is then rotated to drive the connection portions 601 and the engagement portions 70 into proximity with or contact with the radially inner surface of the pile CP. The linear actuator 1006 is then extended to push each engagement portion 70 along the coupling surface of the respective connection portion 601, so that the teeth of the engagement portions 70 engage with the radially inner surface of the pile CP.

[0115] With reference to Figures 19A-19I, the erection procedure is described. In Figures 19A-19I, the erection procedure is illustrated for non-flanged piles CP, but it will be understood that the process is similar when used to erect flanged piles FP.

[0116] The base element 20 has four legs 212. Each leg 212 is partially formed from extensions of two of the outer webs 204. The two extensions of the outer webs 204 of each leg 212 are connected to each other by a foot. The two extensions of the outer webs 204 of each leg 212 extend from a first side of the outer web 204, the first side being the axial side of the outer web 204 opposite to the side on which the lifting arm 30 is located. The first side of the outer web 204 faces downward when the lifting device 1 is stored. The base element 20 also has a platform 213. The platform 213 is formed from extensions of the two outer webs 204. The extensions are connected to each other by a flat plate. The two extensions of the outer web 204 of each platform 213 extend from a second side of the outer web 204, which is the axial side on which the lifting arms 30 of the outer web 204 are arranged. The second side of the outer web 204 faces upward when the raising device 1 is stored.

[0117] As shown in FIG. 19A, the raising device 1 is stored in a state in which the raising device 1 stands on the legs 212 of the base element 20.

[0118] A second shaft 1002 is fixed between the holes in each plate 301 of the lifting arm 30 at the end section, from which the stand portion 304 extends. A pulley wheel 1003 is rotatably mounted on the second shaft 1002.

[0119] As shown in Figure 19B, the lifting element H is attached to the pulley wheel 1003, and as tension is applied to the lifting element H, the linear actuator 90 (not shown in Figures 19A to 19I) extends, causing the lifting arm 30 to rotate about the first shaft 1001 and the second axis A2 relative to the mounting element 40. The erection device 1 is then lifted by the lifting element H from the surface on which it was stored. During this movement, the central axis of the base element 20 is substantially vertical.

[0120] As shown in FIG. 19C, the linear actuator 90 is contracted to rotate the base element 20 relative to the lifting arm 30, and move the central axis of the base element 20 so that it becomes nearly horizontal.

[0121] 19D, the raising device 1 is lowered towards the temporary support 1101 on the installation frame 1102. As the raising device 1 is lowered towards the temporary support 1101, the temporary support 1101 contacts one of the legs 212 and rotates the raising device 1 so that the central axis of the base element 20 is substantially horizontal. Advantageously, the leg 212 can be aligned with the temporary support 1101 by rotating the base element 20 about the first axis A1.

[0122] 19E, when the central axis of the base element 20 is substantially horizontal, the erection device 1 is temporarily connected to the installation frame 1102. Then, the temporary support 1101 is removed.

[0123] As shown in Figures 19F and 19G, the erection device 1 and the installation frame 1102 are moved close to the pile via the lifting elements H. Then, the central axis of the base element 20 is aligned with the central axis of the pile by skidding the installation frame 1102 in a direction perpendicular to these axes. By skidding the installation frame 1102 towards the pile, the base element 20 and the connection elements are inserted into the end of the pile with the connection elements in the retracted position. The platform 213 contacts the top surface or rim of the pile when the erection device 1 is inserted into the pile.

[0124] Once the base element 20 and connection elements are inserted into the end of the pile, they are rotated about a first axis relative to the attachment element 40 while the connection elements are being retracted so that the connection elements are optimally aligned with the inner surface or surface of the pile. This allows one or two connection elements to be vertically oriented, extending in front of the other connection elements and assisting in centering the erection device 1 within the pile. Rotating the base element 20 and connection elements about the first axis A1 also avoids contact forces between the pile and the connection elements at improper locations, such as at welds.

[0125] A plurality of guide elements are arranged on the outer ring 201 of the base element 20. These guide elements are centralizers 214 and can be seen in Figures 3 and 4. The centralizers 214 are pistons that are extendable radially outward from the outer ring 201. Centralizer drive means (not shown) for extending the centralizers radially outward are provided radially inward of the outer ring 201. In this example, the centralizers 214 are provided in groups of two circumferentially aligned centralizers 214. In this example, there are four groups of two centralizers 214 at equally spaced positions around the circumference of the outer ring 201. However, there could be two, three, or more groups of centralizers.

[0126] The centralizers 214 of the base element 20 are then extended radially outward to center the base element 20 within the pile. The vertically aligned connection elements are then extended. When used with a non-flanged pile CP, the linear actuators 1006 connected to the vertically aligned connection elements are extended so that the engagement portions 70 of these connection elements, which are equipped with toothed strips 701, engage the radially inner surface of the pile. When used with a flanged pile FP, the drive shafts 607 of the vertically aligned connection elements drive the connection elements radially outward until the engagement portions 70, equipped with radial rails 801 and axial rails 804, engage the flanges of the pile FP. This engagement between the vertically aligned connection elements and the inner surface of the pile further ensures that the base element 20 is centered within the pile. The remaining connection elements are then extended to engage the inner surface of the pile. That is, when used with non-flanged piles CP, the linear actuators 1006 connected to the remaining connection elements are extended so that the engagement portions 70 of these connection elements, to which the toothed strips 701 are attached, engage the radial inner surface of the pile. When used with flanged piles FP, the drive shafts 607 of the remaining connection elements drive the connection elements outward until the engagement portions 70, to which the radial rails 801 and axial rails 804 are attached, engage the flanges of the flanged pile FP. The installation frame 1102 is then disconnected and removed from the erection device 1.

[0127] As shown in Figure 19H, the raising device 1 is then lifted by the lifting element H to lift the end of the pile. When the pile is lifted, the linear actuator 90 connected between the lifting arm 30 and the attachment element 40 is extended, thereby rotating the lifting arm 30 about the second axis A2.

[0128] The anti-rotation beam 1004 is secured 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 tubular in shape.

[0129] As shown in Figure 19I, when the pile is suspended vertically, tugger lines TL are connected to both ends of the anti-rotation beam 1004 to prevent rotation of the lifting arm 30 and the attachment element 40. The tip direction of the pile can then be changed by rotating the base element 20 and the connection element about the first axis A1.

[0130] The stake can then be driven into the ground and held upright by the stake gripper, and the stake driven into the ground.

[0131] 20A and 20B, a second embodiment of the raising device 1' of the present invention is shown. The raising device 1' has similar features to those described with respect to the raising device 1 described with reference to FIGS. 1 to 19I, and similar features are designated with the same reference numerals followed by a prime symbol ('). Only the features of the raising device 1' that differ from those of the previous embodiment are described herein.

[0132] The lifting 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', with the first section 301' at an oblique angle to the second section 302'. The lifting device 1' of this embodiment differs from the previous embodiment in that the attachment element 40' is substantially flush with the side of the base element 20' facing the lifting arm 30'. Therefore, the end of the lifting arm 30' connected to the first shaft 1001' is connected to the attachment element 240' at a radially inner position of the inner ring 201' of the base element 20'. Due to the oblique angle between the first section 301' and the second section 302' of the lifting arm 30', when the central axis of the base element 20' is horizontally aligned with the piling, the first section 301' is perpendicular to the central axis of the base element 20', as shown in FIG. 20A. As shown in FIG. 20B, when the pile is suspended vertically, the first shaft 1001' and the second shaft 1002' are aligned vertically.

[0133] 21 and 22 show another example of a lifting device in which a lifting arm 30 includes a lifting element control 55 rotatably connected to the lifting arm 30 by a second shaft 1002″. The lifting element control 55 includes a pair of spaced apart plates, each plate including a hole or opening in its lower section that pivotally engages with the second shaft 1002″. The lifting element control 55 further includes a first connecting element 57 and a second connecting element 59 that connect the spaced apart plates to each other. A lifting element H is guided through the opening defined by the connecting elements 57, 59 and the pair of spaced apart plates of the lifting element control 55. The lifting element control 55 is rotatable about the second shaft 1002″, which defines a third axis parallel to the second axis, between a first position in which the lifting element control 55 is vertical when the lifting arm 30 is vertical and the centerline of the base element is vertical, and a second position in which the lifting element control 55 is horizontal when the lifting arm 30 is vertical and the centerline of the base element is vertical. In the first position, the lifting element H is in its most extended configuration, often suspended from a hoist (e.g., a crane). When the lifting element control 55 is in the second position, the lifting element H contacts the second connection element 59.

[0134] Furthermore, each of the plates of the lifting element control includes an opening 56, and the lifting arm 30 has two spaced-apart stand portions 304 extending therefrom. The stand portions 304 have locking elements 58 that correspond to the openings 56 in the plates of the lifting element control when the lifting element control 55 is in the second position. This allows the lifting element control 55 to be locked or fixed to the lifting arm 30 in the second position by the locking elements 58 on both sides of the stand portions 304 when the lifting element control 55 rotates from the first position to the second position about the second shaft 1002″. The locking elements 58 are configured to fix the position of the lifting element control 55, and therefore the position of the lifting element H, relative to the lifting arm 30.

[0135] It will be appreciated that the raising device of this embodiment differs from the previous embodiment by the features described with reference to Figures 21 and 22, but the remaining features of the raising device are similar to those described with reference to the previous embodiment.

[0136] Referring to Figure 23, the operation of the opening device of Figures 21 and 22 is explained. Figure 23 shows steps A to I of erecting a flanged pile FP, although it will be understood that the steps are the same when erecting a conical pile with an appropriate base element.

[0137] In step A, the lifting device is standing on deck D, e.g., for storage or transport. The centerline of the base element is vertical (when the vessel on which the lifting device is located is upright), the lifting arm 30 is in a stowed position rotated away from the lifting position, and the lifting element control 55 is in a second position. In this configuration, the stand portion 304 of the lifting arm 30 extends downward along the radial side of the base element, and the lifting element control 55 is fixed to the lifting arm 30 in the second position. Thus, a lifting element H, which is connected to the second shaft 1002″ and passes through an opening defined by the connecting elements 57, 59 of the lifting element control 55 and a pair of spaced plates, extends vertically from the second connecting element 59. The connecting element 59 is circular in cross section and is either a tube or a rod connected at its ends to the spaced plates. In other words, the lifting element H can extend from the second shaft 1002'' to the second connecting element 59 and then extend vertically to the hoist.

[0138] In step B, while lifting element connector 55 remains fixed to lifting arm 30 in the second position, lifting arm 30 is rotated to the lifting position relative to the base element. Due to the shape of each stand portion 304, the line of lift from lifting element H is aligned along the centerline of the base element, even though lifting element H is curved around second connecting element 59.

[0139] In step C, the raising device is lifted from deck D using lifting element H, while still in the position described in step B.

[0140] In steps D and E, the base element is rotated about the lifting arm 30 until the centerline of the base element is horizontal, as shown in step E. In this position, the stand portion 304 of the lifting arm 30 extends along the radial side of the base element. Advantageously, in the arrangement shown in step E, the lifting line from the lifting element H is aligned with the center of gravity (CoG) of the base element, or at least closer to the CoG than in the previous embodiment. This allows the base element to be driven into the pile more easily.

[0141] In step F, the base element is driven into the end of the pile FP while still in the configuration shown in step E.

[0142] In step G, the locking element 58 of the stand portion 304 of the lifting arm 30 is disconnected (removed) from the opening 56 of the lifting element control unit 55, and the lifting element control unit 55 is rotated to the first position around the second shaft 1002''.

[0143] In steps H and I, the pile FP is erected by rotating the base element relative to the lifting arm 30. As can be seen in step I, the load line from the lifting element H is along the centerline of the base element.

[0144] Those skilled in the art will appreciate that the lifting element control unit 55 can displace the center of gravity (CoG) of the erecting device 1, particularly when the erecting device 1 is driven into a horizontally oriented pile. This applies to both flangeless piles CP and flanged piles FP. When the central axis of the base element 20 of the erecting device 1 is aligned with the horizontally oriented pile, the CoG is displaced toward the lifting element control unit 55. This can eliminate the need for additional connection parts to the erecting device 1 itself or any additional tools, such as lifting gear, when erecting a pile.

[0145] Various modifications to the above-described embodiment may be possible. For example, the structure of the base element may differ from that described above. For example, the intermediate ring 202 may be replaced by a linear plate extending between the webs connecting the outer ring 201 and the inner ring 203. Indeed, such a configuration is shown in Figures 7 and 10. Alternatively, the base element may not comprise concentric rings, but instead may be formed from multiple arms having connecting elements at their radially outer ends and rotatably connected to the lifting arm 30 about the first axis A1. The arms of the base element may be semicircular in shape, such that the connecting elements extend circumferentially along a portion of the radially inner surface of the pile.

[0146] It will be appreciated that the embodiments described with reference to Figures 21 to 23, and in particular the lifting element control and lifting arm, can be used in other configurations of the erection device, for example in erection devices having a base element that is not rotatable relative to the lifting arm about the first axis.

[0147] Those skilled in the art will also appreciate that combinations of any number of the features described above and / or illustrated in the accompanying drawings provide distinct advantages over the prior art and, therefore, such combinations are within the scope of the invention as described herein.

Claims

1. A raising device for raising tubular piles, comprising: a base element inserted into the end of the tubular pile and extending along the inside of the tubular pile; a plurality of connecting elements connected to the base element and configured to engage one or more interior surfaces of the tubular pile; a lifting arm connecting the erection device to a lifting element; Equipped with the lifting arm is rotatably connected to the base element, the lifting arm being rotatable relative to the base element about a first axis, the first axis being a central axis of the base element and being substantially parallel to a central axis of the tubular pile in use; Stand-up device.

2. 2. The lifting device of claim 1, further comprising an attachment element, wherein the lifting arm is rotatably connected to the base element via the attachment element, the attachment element being rotatably connected to the base element, and the attachment element being rotatable relative to the base element about the first axis.

3. 3. The raising device of claim 1 or 2, wherein the lifting arm is rotatable relative to the base element about a second axis, the second axis being substantially perpendicular to the first axis.

4. The raising device of claim 3 , wherein the lifting arm is rotatably coupled to the mounting element, and the lifting arm is rotatable relative to the mounting element about the second axis.

5. 5. The raising device according to claim 3 or 4, further comprising a lifting arm drive device for rotating the lifting arm relative to the base element about the second axis.

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

7. 7. The raising device according to claim 3, further comprising a drive means arranged between the mounting element and the base element for controlling the rotational movement of the base element relative to the mounting element about the first axis.

8. 8. The raising device of claim 7, wherein the drive means comprises a pinion and a gear, the gear being rotatably mounted on the mounting element and the pinion being provided on the base element.

9. Each connection element is an engagement portion including a coupling portion, the coupling portion having a coupling surface facing radially inward; A connection part; The connection portion comprises: a radially outer portion having a coupling surface facing radially outward, the coupling surface of the engagement portion abutting the coupling surface of the radially outer portion of the connection portion, and each connection portion and corresponding engagement portion being movable in a radial direction; a first connection means at the radially outer end of each connection portion, the first connection means being connected to an axial locking means, the axial locking means being connected between the connection portion and the engagement portion and limiting axial movement of the engagement portion relative to the connection portion; Equipped with The raising device according to any one of claims 1 to 8, wherein the base element comprises a second connection means connected to an actuation means connectable between the base element and the engagement portion to move the engagement portion along the coupling surface of the connection portion.

10. 10. The raising device according to claim 9, wherein the connecting portion of the engaging portion is a tapered portion, the radial thickness of the tapered portion gradually decreasing as it moves away from the side of the base element on which the lifting arm is arranged, and the radial thickness of the radially outer portion of the connecting portion gradually decreasing toward the side of the base element on which the lifting arm is arranged.

11. 11. The raising device according to claim 9 or 10, wherein each connecting element comprises a further connecting portion parallel to the connecting portion, each engaging portion including a further coupling surface, the further coupling surface of each engaging portion abutting the coupling surface of the further connecting portion.

12. 12. The raising device according to claim 9, further comprising a drive shaft arranged between a radially inner end of each connecting portion and the base element, each drive shaft being configured to radially translate a respective connecting portion.

13. 13. A raising device as claimed in any one of claims 1 to 12, comprising at least one guide element attached to the base element and contacting, in use, an inner radial surface of the tubular pile to control the radial position of the base element relative to the tubular pile.

14. 14. The raising device of claim 13, wherein the at least one guide element comprises at least two centralizers, each centralizer being radially slidably connected to the base element, disposed in a respective radial half of the base element, and extensible from a radial outer surface of the base element.

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

16. 16. The method of claim 15, further comprising step a1), wherein step a1) is performed prior to step a), and step a1) comprises lowering the base element, the plurality of connection 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 connection elements relative to the lifting arm about a second axis perpendicular to the first axis to substantially align the first axis with the central axis of the tubular pile.

17. 17. The method of claim 15 or 16, wherein step d) comprises 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 the raising device, the second axis being perpendicular to the first axis.

18. A method for placing a tubular pile, comprising the method of erecting a tubular pile according to any one of claims 15 to 17, the method comprising a subsequent step of rotating the base element, the plurality of connecting elements and the tubular pile about the first axis to adjust the tip direction of the tubular pile.

19. A raising device for raising tubular piles, comprising: a base element inserted into the end of the tubular pile and extending along the inside of the tubular pile; a lifting arm connected to the base element, the lifting arm connecting the lifting 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; each connecting element comprising: an engagement portion including a coupling portion, the coupling portion having a coupling surface facing radially inward; A connection part; The connection portion comprises: a radially outer portion, wherein the coupling surfaces of the engagement portions abut the coupling surfaces of the radially outer portions of the connection portions, and each connection portion and corresponding engagement portion is radially movable; a first connecting means at the radially outer end of each connecting portion, the first connecting means being connected to an axial locking means, the axial locking means being connected between the connecting portion and the engaging portion and limiting axial movement of the engaging portion relative to the connecting portion; Equipped with the base element comprises second connection means connected to actuation means connectable between the base element and the engagement portion for moving the engagement portion along the coupling surface of the connection portion; Stand-up device.

20. 20. The raising device of claim 19, wherein the connecting portion of the engaging portion is a tapered portion, the radial thickness of the tapered portion gradually decreasing as it moves away from the side of the base element on which the lifting arm is arranged, and the radial thickness of the radially outer portion of the connecting portion gradually decreasing toward the side of the base element on which the lifting arm is arranged.

21. 21. The raising device of claim 19 or 20, wherein the at least one connecting portion includes two parallel connecting portions, each of the engaging portions having a first coupling surface and a second coupling surface, each of the first coupling surface and the second coupling surface abutting against a coupling surface at the radially outer end of a corresponding one of the connecting portions.

22. 22. The raising device according to any one of claims 19 to 21, further comprising a drive shaft arranged between a radially inner end of each connecting portion and the base element, each drive shaft being configured to move the respective connecting portion and engaging portion radially.

23. A raising device as described in any one of claims 19 to 22, wherein the lifting arm is rotatably connected to the base element, and the lifting arm is rotatable relative to the base element about a first axis, the first axis being a central axis of the base element and, in use, substantially parallel to a central axis of the tubular pile.

24. 24. The lifting device of claim 23, further comprising an attachment element, wherein the lifting arm is rotatably connected to the base element via the attachment element, the attachment element being rotatably connected to the base element, and the attachment element being rotatable relative to the base element about the first axis.

25. 25. The raising apparatus of claim 24, wherein the lifting arm is rotatable relative to the base element about a second axis, the second axis being substantially perpendicular to the first axis.

26. 26. The raising device of claim 25, wherein the lifting arm is rotatably coupled to the mounting element, the lifting arm being rotatable relative to the mounting element about the second axis.

27. 27. A raising apparatus according to claim 25 or 26, comprising a lifting arm drive device for rotating the lifting arm relative to the base element about the second axis.

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

29. 29. The raising device according to any one of claims 23 to 28, comprising a drive means arranged 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. 30. The raising device of claim 29, wherein the drive means comprises a pinion and a gear, the gear being rotatably mounted on the mounting element and the pinion being provided on the base element, or the gear being rotatably mounted on the base element and the pinion being provided on the mounting element.

31. 1. A raising system for raising tubular piles, comprising: The raising device according to any one of claims 12 to 14 or 19 to 30, the axial locking means; the actuation means; Equipped with Each connection element has a friction lift configuration and a flange lift configuration. Stand-up system.

32. 32. The raising system of claim 31, wherein in the friction lifting configuration, the engagement portion is connected to the actuation means, and the actuation means is connected to the connection means of the base element.

33. 33. The raising device according to claim 31 or 32, wherein in the flange-type lifting configuration, the engagement portion is connected to the axial locking means, and the axial locking means is connected to each of the at least one connection portion.

34. Each connection element is The engaging portion or engaging portion; at least one toothed strip attachable to a radially outer surface of each of said engagement portions; Equipped with The raising device according to any one of claims 31 to 33, wherein in the friction lifting configuration, the at least one toothed strip is attached to the radially outer surface of the engagement portion.

35. Each connection element is The engaging portion or engaging portion; at least one axial rail attachable to an axial surface of each of the engagement portions, the at least one axial rail being adjacent to the radially outer surface of each of the engagement portions, the axial surface facing the lift arm in use; Equipped with The raising device according to any one of claims 31 to 34, wherein in the flange-type lifting configuration, the at least one axial rail is attached to the engagement portion.

36. 36. The raising system of claim 35, wherein each connection element comprises at least one radial rail attachable to the radially outer surface of the respective engagement portion, and in the flange-type lifting configuration, at least one radial rail is attached to each engagement portion.

37. 37. The raising system according to claim 35 or 36, wherein in the flanged lifting configuration, the engagement portion is connected to the axial locking means, and the axial locking means is connected to each of the at least one connection portion.

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

39. A method according to claim 38 when dependent on any one of claims 31 to 37, wherein step a) comprises configuring the connection element in either the friction lifting configuration or the flange lifting configuration.

40. Configuring the connecting element into the friction lifting configuration includes removing radial and / or axial rails attached to the engagement portions and attaching at least one toothed strip to each engagement portion; 40. The method of claim 39, wherein configuring the connection elements into the flanged lifting configuration includes removing toothed strips attached to engagement portions and attaching at least one axial rail to each engagement portion.

Images