Deepwater multi-pile underwater positioning pile sinking device

Abstract

The utility model discloses a deepwater multi-pile underwater positioning pile sinking device which comprises a main truss, underwater hydraulic telescopic leveling mechanisms are installed at the bottoms of stand columns at the four corners of the main truss, and each underwater hydraulic telescopic leveling mechanism is in spherical hinge connection with an anti-sinking plate. The hydraulic telescopic leveling mechanism is arranged on the main truss and locked with the anti-sinking plate through a radial locking mechanism arranged at the bottom end of the hydraulic telescopic leveling mechanism in a surrounding mode, supporting legs are arranged at the bottom of the anti-sinking plate, each side face of the main truss is provided with an engineering pile positioning guide cylinder, the tops of the guide cylinders are provided with horn-shaped guide plates, and the guide plates are provided with underwater observers for monitoring the pile sinking condition of engineering piles. According to the deepwater multi-pile underwater positioning pile sinking device, the connecting structure of the main truss, the observation and operation platform, the anti-sinking plate and the guide cylinder is stable, and the anti-sinking plate and the four supporting legs on the lower portion can stably sink in a deepwater area and bear large external loads; the problems that in deepwater area large-span foundation construction, the span of a workboat is large, the hoisting load requirement is high, and the construction procedure is complex are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of offshore wind power, in particular to a deep-water multi-pile underwater positioning pile sinking device. Background Art

[0002] At present, wind power is one of the most mature and cost-effective new energy sources. The domestic offshore wind power development area is expanding day by day, gradually developing from offshore shallow waters to deep waters. Most offshore wind energy resources are mainly in deep waters. The engineering pile sinking in the shallow water wind farm is often constructed using an above-water positioning guide frame.

[0003] The water positioning guide frame has a large structural size and heavy weight. It is generally based on a bottom-standing form of anti-sinking plates combined with auxiliary piles, and is positioned and leveled by sinking auxiliary piles. As the water depth of the site continues to increase, the sea and geological conditions are complex, and the capacity of wind turbine units continues to increase, the same construction method is also used in deepwater areas, which will inevitably require an increase in the specifications and dimensions of the positioning water guide frame, resulting in increased difficulty in platform hoisting, reduced platform self-survival ability, and poor economic benefits.

[0004] Therefore, it is necessary to propose a deep-water multi-pile underwater positioning and pile sinking device to solve the above problems. Utility Model Content

[0005] The technical problem to be solved by the utility model is that, in view of the problems of great difficulty in platform hoisting and poor self-survival ability in the construction of an above-water positioning guide frame in deep water areas, a new deep-water multi-pile underwater positioning pile sinking device is proposed.

[0006] In order to solve the above technical problems, the utility model provides a deep-water multi-pile underwater positioning and pile sinking device, comprising: a main truss located underwater, underwater hydraulic telescopic and leveling mechanisms are installed at the bottom of the columns on the four corners of the main truss, each underwater hydraulic telescopic and leveling mechanism is connected to the lower anti-sinking plate ball joint, and the hydraulic telescopic and leveling mechanism is locked with the anti-sinking plate through a radial locking mechanism arranged around its bottom end, and the bottom of the anti-sinking plate is provided with supporting legs corresponding to the columns on the four corners of the main truss, each side of the main truss is installed with an engineering pile positioning guide cylinder, a trumpet-shaped guide plate is installed on the top of the guide cylinder, the trumpet-shaped large mouth end of the guide plate is arranged upward, and an underwater observer for monitoring the pile sinking of the engineering piles is installed on the guide plate.

[0007] In a preferred embodiment of the present invention, an underwater three-dimensional attitude meter for measuring horizontality is installed on the main truss.

[0008] In a preferred embodiment of the present scheme, the main truss is composed of four corner columns and four side trusses connected together, and an integral hanging point is respectively set at the top of each of the four columns.

[0009] Furthermore, the four guide cylinders are respectively fixed on the four side trusses of the main truss.

[0010] In a preferred embodiment of the present scheme, an auxiliary truss with its upper part vertically exposed above the water surface is installed at a corner point on the main truss, and an observation and operation platform and a hydraulic station are built on the auxiliary truss located above the water surface.

[0011] In a preferred embodiment of the present solution, the oil cylinder of the underwater hydraulic telescopic leveling mechanism is installed inside the column.

[0012] In a preferred implementation of the present solution, the anti-sinking plate is a planar U-shaped structure.

[0013] The implementation of this utility model has the following beneficial effects:

[0014] In this deep-water multi-pile underwater positioning pile sinking device, the connection structure of the main truss, the observation and operation platform, the anti-sinking plate and the guide cylinder is stable, and the anti-sinking plate and the four lower legs can be stably sunk in the deep water area and withstand large water flow and external loads;

[0015] The main body of the device is located underwater, and only the top of the observation and operation platform extends above the water surface, which can greatly reduce the platform's water-facing area and reduce the overturning effect of water flow on the platform, solving the problems of large span of the operating ship, high lifting requirements, and complex construction procedures in the construction of large-span foundations in deep water areas;

[0016] The observation and operation platform can conveniently place various equipment and collect the elevation position information of the platform; in addition, an underwater observer is set at the guide plate to observe the position of the engineering pile relative to the guide cylinder, thereby improving the accuracy of pile sinking and the construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 This is a schematic diagram of the structure of the deep-water multi-pile underwater positioning pile sinking device;

[0019] Figure 2 This is a side structural schematic diagram of the deep-water multi-pile underwater positioning and pile sinking device;

[0020] Figure 3 This is a top view structural schematic diagram of the deep-water multi-pile underwater positioning pile sinking device;

[0021] In the figure: main truss 1, guide cylinder 2, underwater hydraulic telescopic leveling mechanism 3, anti-sinking plate 4, outrigger 5, observation and operation platform and hydraulic station 6, guide plate 7, radial locking mechanism 8, truss 9. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-3 , Figure 1 This is a schematic diagram of the structure of the deep-water multi-pile underwater positioning pile sinking device; Figure 2 This is a side structural schematic diagram of the deep-water multi-pile underwater positioning and pile sinking device; Figure 3 This is a schematic diagram of the top view of the structure of the deep-water multi-pile underwater positioning and pile driving device.

[0024] The present deep-water multi-pile underwater positioning and pile sinking device comprises: a main truss 1 located underwater, and the bottoms of the columns at the four corners of the main truss 1 are all equipped with underwater hydraulic telescopic leveling mechanisms 3, and the underwater hydraulic telescopic leveling mechanisms 3 and their oil cylinders are all installed inside the columns. Each underwater hydraulic telescopic leveling mechanism 3 is ball-jointedly connected to the lower anti-sinking plate 4, and the hydraulic telescopic leveling mechanism 3 is locked with the anti-sinking plate 4 through a radial locking mechanism 8 arranged around its bottom end. The anti-sinking plate 4 is a flat U-shaped structure, and the bottom of the anti-sinking plate 4 is provided with legs 5 corresponding to the four columns 10 one by one.

[0025] An integral hanging point is arranged at the top of the columns at the four corners of each main truss 1. Four guide cylinders 2 are fixed to the main truss 1 respectively. A trumpet-shaped guide plate 7 is installed on the top of the guide cylinder 2, and the trumpet-shaped large mouth of the guide plate 7 is arranged upward. An underwater observer for monitoring the pile sinking of the engineering pile is installed on the guide plate 7.

[0026] In addition, an underwater three-dimensional attitude meter for measuring horizontality is installed on the main truss 1. An auxiliary truss 9 with its upper part vertically exposed above the water surface is installed at a corner point on the main truss 1, and an observation and operation platform and a hydraulic station 6 are built on the auxiliary truss 9 located above the water surface.

[0027] This deepwater multi-pile underwater positioning and pile sinking device can meet the construction needs of wind power foundations in deepwater areas, improve construction accuracy and reduce construction difficulty. The main principle is: the main truss is located below the water surface and sits on the seabed. Guide cylinders are installed on each side of the main truss. An auxiliary truss is installed at a corner point of the main truss, and an observation and operation platform and a hydraulic station are built at a certain height above the water surface. An underwater three-dimensional attitude meter for measuring horizontality is installed on the main truss. The underwater hydraulic telescopic leveling mechanism is arranged inside the lower end structure of the columns at the four corners of the main truss. The underwater hydraulic telescopic leveling mechanism is connected to the anti-sinking plate through a ball joint. Four legs corresponding to the columns at the four corners of the main truss are arranged at the bottom of the anti-sinking plate. A guide cylinder for positioning the engineering pile is installed on the outer side of the truss of the main truss. A trumpet-shaped guide plate is installed on the top of the guide cylinder, and the trumpet-shaped large mouth end of the guide plate is arranged upward. An underwater monitoring device for measuring the pile sinking of the engineering pile is installed on the guide plate. The device is lowered into deep water, and the four legs at the bottom of the anti-sinking plate are inserted into the mud surface of the seabed. The bottom plane of the anti-sinking plate is in contact with the seabed surface, so that the entire platform sits stably on the seabed without slipping or capsizing. At the same time, the main truss is also equipped with an underwater three-dimensional attitude meter, through which the horizontality and inclination of the entire multi-pile pile stabilizing platform are accurately monitored. If the horizontality is found to be unsatisfactory, the hydraulic leveling mechanism of the legs at the lower ends of the columns at the four corners of the main truss is used for adjustment: first, the locking mechanism arranged around the hydraulic telescopic leveling mechanism locks one of the hydraulic telescopic leveling mechanisms, and the other three hydraulic telescopic leveling mechanisms are adjusted. After the main truss is leveled, the other three locking mechanisms on the anti-sinking plate lock the remaining three hydraulic telescopic leveling mechanisms, and the leveling of the deep-water multi-pile underwater positioning and sinking device is completed; one end of the auxiliary truss is connected to the main truss underwater, and the other end is exposed to a certain height above the sea surface, where a hydraulic station and an observation and operating table are installed; guide cylinders are installed on the outer sides of the four side trusses of the main truss. The guide cylinders are at a certain height from the sea level. By using satellite positioning technology, with the observation and operating table as the base point, the position coordinates of the guide cylinders can be located, and the lowering position of the engineering piles can be accurately located. A trumpet-shaped guide plate is installed on the top of the guide cylinder to prevent the pile from being deflected due to rapid sea currents or delayed crane amplitude changes when sinking. An underwater observer is also installed on the guide cylinder, which is connected to the monitoring equipment on the placement platform or construction ship to monitor the sinking of the pile in real time and ensure the progress of construction.

[0028] Specific installation method: Arrive at the offshore operation area, lift the deepwater multi-pile underwater positioning and sinking device by a crane ship, lift the entire device from the ship deck, and then slowly lower it into the water. When the deepwater multi-pile underwater positioning and sinking device reaches the deep water area, the anti-sinking plate and the four legs at the bottom contact the seabed mud surface. The anti-sinking plate and the four legs enable the deepwater multi-pile underwater positioning and sinking device to be firmly embedded in the sea surface and remain stable. The underwater three-dimensional attitude meter of the deep-water multi-pile underwater positioning and pile sinking device starts to work. The underwater three-dimensional attitude meter accurately monitors the horizontality and inclination of the entire deep-water multi-pile underwater positioning and pile sinking device. If the horizontality does not meet the requirements, the hydraulic telescopic leveling mechanism of the deep-water multi-pile underwater positioning and pile sinking device is adjusted. First, the locking mechanism on the anti-sinking plate locks one hydraulic telescopic leveling mechanism, and the other three hydraulic telescopic leveling mechanisms are adjusted to make the deep-water multi-pile underwater positioning and pile sinking device reach a horizontal state. After the leveling is completed, the locking mechanism on the anti-sinking plate locks the remaining three hydraulic telescopic leveling mechanisms. The deep-water multi-pile underwater positioning and pile sinking device is leveled; it begins to enter the piling stage. Using satellite positioning technology, with the observation and operating platform as the base point, the position coordinates of the guide cylinder can be located, and the lowering position of the engineering pile can be accurately located. The engineering pile can be slowly lowered into the main truss guide cylinder, and the guide cylinder provides horizontal guidance and support for the engineering pile, so that the plumb bob is inserted into the seabed surface without offset. After the engineering pile guidance is completed, the pile sinking operation can be started.

[0029] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A deep-water multi-pile underwater positioning and pile sinking device, characterized in that: include: The main truss is located underwater, and the bottom of the columns on the four corners of the main truss are equipped with underwater hydraulic telescopic leveling mechanisms. Each of the underwater hydraulic telescopic leveling mechanisms is connected to the lower anti-sinking plate with a ball joint, and the hydraulic telescopic leveling mechanism is locked with the anti-sinking plate through a radial locking mechanism arranged around its bottom end. The bottom of the anti-sinking plate is provided with supporting legs corresponding to four columns one by one. An engineering pile positioning guide cylinder is installed on each side of the main truss, and a trumpet-shaped guide plate is installed on the top of the guide cylinder, and the trumpet-shaped large mouth of the guide plate is arranged upward, and an underwater observer for monitoring the sinking of engineering piles is installed on the guide plate.

2. The deep-water multi-pile underwater positioning and pile sinking device according to claim 1, characterized in that: An underwater three-dimensional attitude instrument for measuring horizontality is installed on the main truss.

3. The deep-water multi-pile underwater positioning and pile sinking device according to claim 1, characterized in that: The main truss is composed of four corner columns and four side truss pieces, and the top of each of the four columns is provided with an integral hanging point.

4. The deep-water multi-pile underwater positioning and pile sinking device according to claim 3 is characterized in that: The four guide cylinders are respectively fixed on the four side trusses of the main truss.

5. The deep-water multi-pile underwater positioning and pile sinking device according to claim 1, characterized in that: An auxiliary truss with its upper part vertically exposed above the water surface is installed at a corner point of the main truss, and an observation and operation platform and a hydraulic station are built on the auxiliary truss located above the water surface.

6. The deep-water multi-pile underwater positioning and sinking device according to claim 1, characterized in that: The oil cylinder of the underwater hydraulic telescopic leveling mechanism is installed inside the column.

7. The deep-water multi-pile underwater positioning and sinking device according to claim 1, characterized in that: The anti-sinking plate is a flat U-shaped structure.

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