A negative pressure bucket type guiding frame platform for pile sinking construction and its construction method

Abstract

The present application relates to a negative pressure bucket type guiding frame platform for pile driving construction and its construction method, belonging to the technical field of offshore wind power pile foundation construction. It includes a main guiding frame, which includes multiple columns, and two adjacent columns are fixedly connected by a cross beam; a negative pressure cylinder foundation, which is a hollow tube structure with an open bottom and a closed perimeter, and the negative pressure cylinder foundation is fixed at the bottom of the column; a guiding device, which includes a pile leaning guiding device, a pile inserting guiding device and a pile driving guiding device arranged in sequence from top to bottom on the main guiding frame, and the axes of the pile leaning guiding device, the pile inserting guiding device and the pile driving guiding device are collinear. The negative pressure bucket type guiding frame platform of the present application uses the pile leaning guiding device, the pile inserting guiding device and the pile driving guiding device arranged in sequence from top to bottom on the main guiding frame to provide hierarchical positioning and guiding for the steel pipe pile driving construction, realizes the construction control of feeding the steel pipe pile, deep water inserting the pile and precise pile driving, and ensures the position accuracy and verticality of the steel pipe pile.

Description

Technical Field

[0001] The present application relates to the technical field of offshore wind power pile foundation construction, and in particular to a negative pressure bucket-type guide frame platform for pile sinking construction and a construction method thereof. Background Art

[0002] As a renewable and clean energy, offshore wind power plays a vital role in promoting energy structure transformation and undertaking environmental protection upgrade tasks, and has broad development prospects. In recent years, offshore wind power has entered a stage of rapid development, and its construction has gradually developed from the early intertidal zone to the 30-50m deep sea area.

[0003] At present, the application of jacket foundations is becoming more and more common in the field of offshore wind power. In the jacket foundation, the sinking construction of steel pipe piles is one of the most critical steps. At present, there are several difficulties in the construction of jacket foundation steel pipe piles: 1. It is difficult to control the accuracy of steel pipe piles during sinking, including the relative plane position accuracy and the verticality of steel pipe piles. In particular, with the increase of water depth and offshore distance, the construction difficulty increases; 2. The offshore wind power operation window is short and discontinuous, and the current guide frame mostly adopts the form of positioning piles. The auxiliary pile sinking and pulling are not convenient and fast enough, which occupies the precious construction window; 3. There are many types of jacket foundations, and the versatility of the pile sinking guide frame platform is poor, which invisibly increases the construction cost.

[0004] With regard to the offshore wind turbine conduit foundation that is gradually developing towards the 30-50m water depth area, the conventional guide frame platform has failed to show good adaptability. Therefore, it is very necessary to invent a guide frame platform for pile sinking that is simple to construct, highly efficient and well adaptable. Summary of the invention

[0005] The embodiment of the present application provides a negative pressure bucket guide frame platform for pile driving construction and a construction method thereof, so as to solve the problem of difficulty in precision control during steel pipe pile driving in the related art.

[0006] In a first aspect, an embodiment of the present application provides a negative pressure barrel type guide frame platform for pile driving construction, the negative pressure barrel type guide frame platform comprising:

[0007] The main guide frame is a rectangular frame structure, and the main guide frame includes a plurality of columns, and the plurality of columns together form a rectangular structure, and two adjacent columns are fixedly connected by a cross beam;

[0008] The negative pressure cylinder foundation is a hollow tube structure with an opening at the bottom and closed all around. There are multiple negative pressure cylinder foundations, which are respectively fixed at the bottoms of multiple columns, and the axis of the negative pressure cylinder foundation is parallel to the axis of the column.

[0009] The guiding device includes a pile-leaning guiding device, a pile-inserting guiding device, and a pile-driving guiding device that are located on the main guiding frame and arranged in sequence from top to bottom, and the axes of the pile-leaning guiding device, the pile-inserting guiding device, and the pile-driving guiding device are collinear.

[0010] In some embodiments: an upper guiding truss for fixing the pile-leaning guiding device is fixedly provided at the top of the main guiding frame, the upper guiding truss is of a rectangular frame structure, there are four groups of the pile-leaning guiding devices, and the four groups of the pile-leaning guiding devices are symmetrically arranged along the center of the upper guiding truss.

[0011] In some embodiments: the pile-leaning guiding device includes a first fixing frame and a second fixing frame that are parallel and spaced apart from each other, a first adjusting frame is detachably connected to the first fixing frame, and a second adjusting frame is detachably connected to the second fixing frame;

[0012] The first adjusting frame can move on the first fixing frame closer to and away from the second fixing frame, and the second adjusting frame can move on the second fixing frame closer to and away from the first fixing frame.

[0013] In some embodiments: guiding wheel groups are provided on both the first adjusting frame and the second adjusting frame, the guiding wheel group includes a base and a slider, and the slider is slidably connected to the base;

[0014] One end of the slider is provided with a lead screw for driving the slider to perform reciprocating linear motion on the base, the lead screw is threadedly connected to the base, and the other end of the slider is rotatably connected to a guiding wheel.

[0015] In some embodiments: a lower guiding truss for fixing the pile-inserting guiding device and the pile-driving guiding device is fixedly provided in the middle of the main guiding frame, and the lower guiding truss is of a rectangular frame structure;

[0016] There are four groups of both the pile-inserting guiding devices and the pile-driving guiding devices, and the four groups of the pile-inserting guiding devices and the four groups of the pile-driving guiding devices are respectively arranged at the four corners of the lower guiding truss.

[0017] In some embodiments: the projections of both the lower guiding truss and the main guiding frame are of regular quadrilateral structures, and the included angle between the diagonal of the lower guiding truss and the diagonal of the main guiding frame is 45 degrees.

[0018] In some embodiments: both the pile-inserting guiding device and the pile-driving guiding device are of circular sleeve structures, the inner holes of the pile-inserting guiding device and the pile-driving guiding device are both of tapered structures with larger upper diameters and smaller lower diameters, and the minimum inner diameter of the pile-inserting guiding device is greater than the minimum inner diameter of the pile-driving guiding device.

[0019] In some embodiments: the pile insertion guide device and the pile driving guide device are both detachably connected to the lower guide truss by bolts.

[0020] In some embodiments: a negative pressure control system is disposed on the main guide frame, and the negative pressure control system includes a pumping pipeline connected to the negative pressure cylinder base and a pump skid connected to the pumping pipeline.

[0021] A second aspect of the embodiments of the present application provides a construction method of a negative pressure bucket guide frame platform for pile driving construction, characterized in that the method uses a negative pressure bucket guide frame platform for pile driving construction described in any of the above embodiments, and the method comprises the following steps:

[0022] After the negative pressure bucket guide frame platform is processed in the factory, it is transported to the construction site by a floating crane. The floating crane is used to lift the negative pressure bucket guide frame platform and it is lowered to the set position with the help of cables.

[0023] After the negative pressure barrel guide frame platform has finished sinking by its own weight, start the pump skid to extract the water in the negative pressure cylinder foundation to adjust the internal and external pressure difference of the negative pressure cylinder foundation, so that the negative pressure barrel guide frame platform can sink to the set elevation;

[0024] The steel pipe pile is transported to the construction site, and the steel pipe pile is lifted and turned over by a floating crane and a pile turner, and the steel pipe pile is put into the pile guide device. At this time, the bottom of the steel pipe pile is higher than the pile guide device;

[0025] The floating crane slowly lowers the steel pipe pile, adjusts the verticality of the steel pipe pile by the pile guide device, and inserts the bottom of the steel pipe pile into the pile guide device;

[0026] The floating crane continues to slowly lower the steel pipe pile, which penetrates into the pile driving guide device under the joint guidance of the pile guide device and the pile insertion guide device, and sinks below the seabed surface under the action of its own weight;

[0027] The floating crane lifts the pile hammer and drives the steel pipe pile. After the steel pipe pile is driven to the set elevation, the first stage of driving operation is completed. At this time, the top of the steel pipe pile is higher than the pile guide device.

[0028] The pile driver is hoisted by floating crane and connected to the top of the steel pipe pile. The pile driver is then driven into the steel pipe pile using a pile hammer. The second stage of driving operation is completed after the steel pipe pile is driven to the set height.

[0029] After all the steel pipe piles at the same location are sunk according to the above steps, start the pump skid to inject water into the negative pressure cylinder foundation to adjust the internal and external pressure difference of the negative pressure cylinder foundation, so that the negative pressure barrel guide frame platform floats up, and use the floating crane to hoist the negative pressure barrel guide frame platform to the next location to continue the pile sinking construction.

[0030] The beneficial effects brought by the technical solution provided in this application include:

[0031] An embodiment of this application provides a negative pressure bucket type guiding frame platform for pile sinking construction and its construction method. Since the negative pressure bucket type guiding frame platform of this application is provided with a main guiding frame, which is a rectangular frame structure. The main guiding frame includes multiple columns, and the multiple columns jointly enclose a rectangular structure, and two adjacent columns are fixedly connected by a cross beam; a negative pressure barrel foundation, which is a hollow pipe body structure with an open bottom and a closed perimeter. There are multiple negative pressure barrel foundations, and the multiple negative pressure barrel foundations are respectively fixed at the bottoms of the multiple columns, and the axis of the negative pressure barrel foundation is parallel to the axis of the column; a guiding device, which includes a pile-leaning guiding device, a pile-inserting guiding device, and a pile-driving guiding device that are arranged in sequence from top to bottom on the main guiding frame, and the axes of the pile-leaning guiding device, the pile-inserting guiding device, and the pile-driving guiding device are collinear.

[0032] Therefore, the negative pressure bucket type guiding frame platform of this application uses the pile-leaning guiding device, the pile-inserting guiding device, and the pile-driving guiding device that are arranged in sequence from top to bottom on the main guiding frame to provide hierarchical positioning and guiding for the steel pipe pile sinking construction, realizing the construction control of feeding the steel pipe pile, deep water pile insertion, and precise pile driving, and ensuring the position accuracy and perpendicularity of the steel pipe pile. The negative pressure bucket type guiding frame platform of this application uses the negative pressure barrel foundation to realize the rapid sinking and positioning of the main guiding frame, with high installation and reuse efficiency, saving the offshore construction window period and improving the construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the technical solutions in the embodiments of this application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of this application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0034] Figure 1 It is a schematic structural diagram of an embodiment of this application;

[0035] Figure 2 It is a schematic structural diagram of the main guiding frame, the pile-inserting guiding device, and the pile-driving guiding device of an embodiment of this application;

[0036] Figure 3 It is a schematic structural diagram of the pile-leaning guiding device of an embodiment of this application;

[0037] Figure 4 It is a schematic structural diagram of the guiding wheel set of an embodiment of this application;

[0038] Figure 5 It is a schematic structural diagram of Step 1 of an embodiment of this application;

[0039] Figure 6Schematic diagram of step 2 of the embodiment of the present application;

[0040] Figure 7 Schematic diagram of step 3 of the embodiment of the present application;

[0041] Figure 8 Schematic diagram of step 4 of the embodiment of the present application;

[0042] Figure 9 Schematic diagram of step 5 of the embodiment of the present application;

[0043] Figure 10 Schematic diagram of step 6 of the embodiment of the present application;

[0044] Figure 11 Schematic diagram of step 7 of the embodiment of the present application;

[0045] Figure 12 Schematic diagram of step 8 of the embodiment of the present application.

[0046] Reference numerals:

[0047] 1. Negative pressure barrel type guiding frame platform; 2. Steel pipe pile; 3. Floating crane; 4. Cable; 5. Water extraction pipeline; 6. Controller; 7. Pump skid block; 8. Pile turning device; 9. Pile hammer; 10. Sling;

[0048] 11. Main guiding frame; 12. Pile leaning guiding device; 13. Pile inserting guiding device; 14. Pile driving guiding device; 15. Negative pressure cylinder foundation; 16. Upper guiding truss; 17. Lower guiding truss; 18. Pile feeder;

[0049] 111. Column; 112. Cross beam; 121. First fixing frame; 122. Second fixing frame; 123. First adjusting frame; 124. Second adjusting frame; 125. Guide wheel set; 126. Base; 127. Slide block; 128. Lead screw; 129. Guide wheel. Detailed implementation manners

[0050] To make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Apparently, the described embodiments are some but not all of the embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative efforts shall fall within the protection scope of the present application.

[0051] The embodiments of the present application provide a negative pressure barrel type guiding frame platform for pile driving construction and its construction method, which can solve the problem of great difficulty in precision control during the driving of steel pipe piles in related technologies.

[0052] See Figure 1 and Figure 2 As shown, in the first aspect of the embodiment of the present application, a negative pressure bucket type guiding frame platform for pile sinking construction is provided. The negative pressure bucket type guiding frame platform 1 includes:

[0053] A main guiding frame 11, which is a rectangular frame structure. The main guiding frame 11 includes four columns 111, and the axes of the four columns 111 are parallel to each other. The four columns 111 together enclose a rectangular structure, and adjacent two columns 111 are fixedly connected by cross beams 112.

[0054] A negative pressure bucket foundation 15, which is a hollow tube structure with an open bottom and a closed perimeter. There are four negative pressure bucket foundations 15, and the four negative pressure bucket foundations 15 are respectively fixed at the bottoms of the four columns 111. The axis of the negative pressure bucket foundation 15 is parallel to the axis of the column 111, and preferably, the axis of the negative pressure bucket foundation 15 and the axis of the column 111 are collinear.

[0055] A guiding device, which includes a pile-leaning guiding device 12, a pile-inserting guiding device 13, and a pile-driving guiding device 14 that are arranged in sequence from top to bottom on the main guiding frame 11. The axes of the pile-leaning guiding device 12, the pile-inserting guiding device 13, and the pile-driving guiding device 14 are collinear.

[0056] There are four groups of the pile-leaning guiding device 12, the pile-inserting guiding device 13, and the pile-driving guiding device 14 respectively. The four groups of the pile-leaning guiding device 12, the four groups of the pile-inserting guiding device 13, and the four groups of the pile-driving guiding device 14 are all arranged around the main guiding frame 11.

[0057] The negative pressure bucket type guiding frame platform 1 of the embodiment of the present application uses the pile-leaning guiding device 12, the pile-inserting guiding device 13, and the pile-driving guiding device 14 that are arranged in sequence from top to bottom on the main guiding frame 11 to provide hierarchical positioning and guiding for the pile sinking construction of the steel pipe pile 2, realizing the construction control of feeding the steel pipe pile 2, deep water pile insertion, and precise pile driving, and ensuring the position accuracy and verticality of the steel pipe pile 2.

[0058] The negative pressure bucket type guiding frame platform 1 of the present application uses the negative pressure bucket foundation 15 to realize the rapid sinking and positioning of the main guiding frame 11, and realizes the rapid installation and reuse of the negative pressure bucket type guiding frame platform 1 by adjusting the internal and external pressure difference of the negative pressure bucket foundation 15, saving the offshore construction window period and improving the construction efficiency.

[0059] In some alternative embodiments: See Figure 1 and Figure 3As shown in the figure, an embodiment of the present application provides a negative pressure bucket type guiding frame platform for pile sinking construction. The upper guiding truss 16 of the fixed pile-leaning guiding device 12 is fixedly arranged at the top of the main guiding frame 11 of the negative pressure bucket type guiding frame platform 1. The upper guiding truss 16 is a rectangular frame structure. There are four groups of pile-leaning guiding devices 12, and the four groups of pile-leaning guiding devices 12 are symmetrically arranged along the center of the upper guiding truss 16.

[0060] The pile-leaning guiding device 12 includes a first fixing frame 121 and a second fixing frame 122 which are parallel and spaced apart from each other. One ends of the first fixing frame 121 and the second fixing frame 122 are both welded to the upper guiding truss 16. A first adjusting frame 123 is detachably connected to the first fixing frame 121, and a second adjusting frame 124 is detachably connected to the second fixing frame 122.

[0061] The first adjusting frame 123 is provided with a plurality of mounting holes for connecting the first fixing frame 121. The plurality of mounting holes are arranged at intervals along the length direction of the first adjusting frame 123. After the first adjusting frame 123 moves closer to and away from the second fixing frame 122, it is fixed to the first fixing frame 121 through the plurality of mounting holes by bolts.

[0062] The second adjusting frame 124 is provided with a plurality of mounting holes for connecting the second fixing frame 122. The plurality of mounting holes are arranged at intervals along the length direction of the second adjusting frame 124. After the second adjusting frame 124 moves closer to and away from the first fixing frame 121, it is fixed to the second fixing frame 122 through the plurality of mounting holes by bolts.

[0063] The pile-leaning guiding device 12 of the embodiment of the present application is arranged at the top of the main guiding frame 11 to provide preliminary positioning for the steel pipe pile 2. The steel pipe pile 2 is located in the gap between the first fixing frame 121 and the second fixing frame 122. The distance between the first adjusting frame 123 and the second adjusting frame 124 is adjusted according to the actual pipe diameter of the steel pipe pile 2, so that the steel pipe pile 2 is clamped between the first adjusting frame 123 and the second adjusting frame 124, realizing the preliminary positioning of the steel pipe pile 2.

[0064] In some alternative embodiments: Refer to Figure 3 and Figure 4 As shown in the figure, an embodiment of the present application provides a negative pressure bucket type guiding frame platform for pile sinking construction. Two guiding wheel groups 125 are arranged on both the first adjusting frame 123 and the second adjusting frame 124 of the negative pressure bucket type guiding frame platform 1. The guiding wheel group 125 includes a base 126 and a slider 127. The slider 127 is slidably connected to the base 126, and the slider 127 moves along the length direction of the base 126 within the base 126. The guiding wheel group 125 is fixedly connected to the first adjusting frame 123 or the second adjusting frame 124 through the base 126.

[0065] At one end of the slider 127, there is a lead screw 128 that drives the slider 127 to perform reciprocating linear motion on the base 126. A nut that is threadedly connected to the lead screw 128 is fixedly provided on the base 126. By rotating the lead screw 128 in the forward and reverse directions, the rotational motion of the lead screw 128 is converted into driving the slider 127 to perform reciprocating linear motion on the base 126.

[0066] At the other end of the slider 127, a guide wheel 129 is rotatably connected. At the other end of the slider 127, a rotating shaft for rotatably connecting the guide wheel 129 is provided, and the guide wheel 129 is connected to the slider 127 through the rotating shaft. The guide wheel 129 contacts and is rotatably connected to the outer wall of the steel pipe pile 2, providing guidance and support for the lowering of the steel pipe pile 2 and protecting the outer wall of the steel pipe pile 2 from damage.

[0067] The guide wheel group 125 located on the first adjusting frame 123 and the second adjusting frame 124 surrounds the steel pipe pile 2. The guide wheel group 125 surrounding the steel pipe pile 2 can be adjusted according to the diameter of the steel pipe pile 2, and the verticality of the steel pipe pile 2 is adjusted by adjusting the guide wheel group 125 surrounding the steel pipe pile 2.

[0068] In some alternative embodiments: Refer to Figure 1 and Figure 2 As shown, the embodiment of the present application provides a negative pressure bucket type guiding frame platform for pile driving construction. A lower guiding truss 17 for fixedly installing a fixed pile inserting guiding device 13 and a pile driving guiding device 14 is fixedly provided in the middle of the main guiding frame 11 of the negative pressure bucket type guiding frame platform 1. The lower guiding truss 17 is a rectangular frame structure. The projections of the lower guiding truss 17 and the main guiding frame 11 are preferably regular quadrilateral structures, and the included angle between the diagonal of the lower guiding truss 17 and the diagonal of the main guiding frame 11 is 45 degrees.

[0069] Both the pile inserting guiding device 13 and the pile driving guiding device 14 are provided with four groups. The four groups of pile inserting guiding devices 13 and the four groups of pile driving guiding devices 14 are respectively arranged at the four corners of the lower guiding truss 17. The four groups of pile inserting guiding devices 13 are located at the top of the lower guiding truss 17, and the four groups of pile driving guiding devices 14 are located at the bottom of the lower guiding truss 17. The axes of the pile inserting guiding devices 13 in the same direction are collinear with the axes of the pile driving guiding devices 14.

[0070] Both the pile inserting guiding device 13 and the pile driving guiding device 14 are circular sleeve structures. The inner holes of the pile inserting guiding device 13 and the pile driving guiding device 14 are both tapered structures with a larger upper part and a smaller lower part. The minimum inner diameter of the pile inserting guiding device 13 is larger than the minimum inner diameter of the pile driving guiding device 14. The difference between the minimum inner diameter of the pile inserting guiding device 13 and the diameter of the steel pipe pile 2 is 10 cm, and the difference between the minimum inner diameter of the pile driving guiding device 14 and the diameter of the steel pipe pile 2 is 2 cm.

[0071] The inner holes of the pile inserting guiding device 13 and the pile driving guiding device 14 are both conical structures with a larger upper part and a smaller lower part, which provide guidance for the lowering of the steel pipe pile 2 and accurate positioning for the insertion of the steel pipe pile 2 into the soil, ensuring the position accuracy of the steel pipe pile 2.

[0072] Both the pile inserting guiding device 13 and the pile driving guiding device 14 are detachably connected to the lower guiding truss 17 by bolts. The inner hole sizes of the pile inserting guiding device 13 and the pile driving guiding device 14 can be replaced and matched according to the pipe diameter of the steel pipe pile 2, realizing the applicability to the pile insertion construction of steel pipe piles 2 with different root openings and different pipe diameters, and improving the versatility of the construction of the present negative pressure bucket type guiding frame platform 1.

[0073] In some alternative embodiments: Refer to Figure 6 As shown, the embodiment of the present application provides a negative pressure bucket type guiding frame platform for pile sinking construction. A negative pressure control system is provided on the main guiding frame 11 of the negative pressure bucket type guiding frame platform 1. The negative pressure control system includes a water suction pipeline 5 connected to the negative pressure cylinder foundation 15 and a pump skid 7 connected to the water suction pipeline 5. A controller 6 for controlling the start and stop of the pump skid 7 is provided at the top of the main guiding frame 11.

[0074] The controller 6 changes the internal and external pressure difference of the negative pressure cylinder foundation 15 by controlling the pump skid 7 to inject water or pump water into the negative pressure cylinder foundation 15, realizing the sinking and floating of the negative pressure bucket type guiding frame platform 1. When the pump skid 7 injects water into the negative pressure cylinder foundation 15 through the water suction pipeline 5, the internal pressure of the negative pressure cylinder foundation 15 is higher than the external pressure, and the negative pressure cylinder foundation 15 gradually floats. When the pump skid 7 discharges the water in the negative pressure cylinder foundation 15 through the water suction pipeline 5, the internal pressure of the negative pressure cylinder foundation 15 is lower than the external pressure, and the negative pressure cylinder foundation 15 gradually sinks.

[0075] Refer to Figures 5 to 12 As shown, the second aspect of the embodiment of the present application provides a construction method for a negative pressure bucket type guiding frame platform for pile sinking construction. This method uses a negative pressure bucket type guiding frame platform for pile sinking construction in the above embodiment. The method includes the following steps:

[0076] Step 1. After the negative pressure bucket type guiding frame platform 1 is processed in the factory, use the floating crane 3 and the lifting tool 10 to lift and place the negative pressure bucket type guiding frame platform 1 onto the transport ship, and transport it to the construction site. Use the floating crane 3 and the lifting tool 10 to lift the negative pressure bucket type guiding frame platform 1, and cooperate with the cable 4 to adjust the angle of the negative pressure bucket type guiding frame platform 1 to sink the negative pressure bucket type guiding frame platform 1 to the set position.

[0077] Step 2: After the self-sinking of the negative-pressure bucket type guide frame platform 1 is completed, the controller 6 starts the pump skid 7 to pump out the water in the negative-pressure cylinder foundation 15 to adjust the internal and external pressure difference of the negative-pressure cylinder foundation 15. The pump skid 7 discharges the water in the negative-pressure cylinder foundation 15 through the water extraction pipeline 5. The internal pressure of the negative-pressure cylinder foundation 15 is lower than the external pressure, and the negative-pressure cylinder foundation 15 gradually sinks, so that the negative-pressure bucket type guide frame platform 1 sinks to the set elevation.

[0078] Step 3: Use a transport ship to transport the steel pipe pile 2 to the construction site. Use a floating crane 3 and a pile turning device 8 to lift and turn the steel pipe pile 2, and put the steel pipe pile 2 into the pile-leaning guide device 12. The pile-leaning guide device 12 restricts the lateral swing of the steel pipe pile 2 and provides preliminary positioning for the lowering of the steel pipe pile 2. At this time, the bottom of the steel pipe pile 2 is higher than the pile inserting guide device 13.

[0079] Step 4: The floating crane 3 slowly lowers the steel pipe pile 2. The pile-leaning guide device 12 adjusts the verticality of the steel pipe pile 2 and inserts the bottom of the steel pipe pile 2 into the pile inserting guide device 13. The pile inserting guide device 13 further improves the position accuracy of the steel pipe pile 2 and provides lowering guidance and positioning for the steel pipe pile 2.

[0080] Step 5: The floating crane 3 continues to slowly lower the steel pipe pile 2. The steel pipe pile 2 penetrates into the pile driving guide device 14 under the combined guiding action of the pile-leaning guide device 12 and the pile inserting guide device 13, and the steel pipe pile 2 sinks below the seabed surface under its own weight. The pile driving guide device 14 provides lowering guidance and final positioning for the steel pipe pile 2.

[0081] Step 6: The floating crane 3 lifts the pile hammer 9 and inserts and drives the steel pipe pile 2. After the steel pipe pile 2 is inserted and driven to the set elevation, the first-stage insertion and driving operation is completed. At this time, the top of the steel pipe pile 2 is higher than the pile-leaning guide device 12; According to the above steps 3 to 5, four steel pipe piles 2 are inserted and driven one by one at the same machine position.

[0082] Step 7: The floating crane 3 lifts the pile feeder 18, connects the pile feeder 18 to the top of the steel pipe pile 2, and continues to insert and drive the steel pipe pile 2 at the top of the pile feeder 18 using the pile hammer 9. After the steel pipe pile 2 is inserted and driven to the set elevation, the second-stage insertion and driving operation is completed;

[0083] Step 8: After the pile sinking construction of the four steel pipe piles 2 at the same position is completed one by one according to the above step 7, start the pump skid 7 to inject water into the negative-pressure cylinder foundation 15 to adjust the internal and external pressure difference of the negative-pressure cylinder foundation 15. The internal pressure of the negative-pressure cylinder foundation 15 is greater than the external pressure, and the negative-pressure cylinder foundation 15 gradually floats, so that the negative-pressure bucket type guide frame platform 1 floats, and use the floating crane 3 and cooperate with the cable 4 to hoist the negative-pressure bucket type guide frame platform 1 to the next position to continue the pile sinking construction.

[0084] Working principle

[0085] The embodiment of the present application provides a negative pressure bucket type guiding frame platform for pile sinking construction and its construction method. Since the negative pressure bucket type guiding frame platform 1 of the present application is provided with a main guiding frame 11, which is a rectangular frame structure. The main guiding frame 11 includes multiple columns 111, and the multiple columns 111 jointly enclose a rectangular structure, and adjacent two columns 111 are fixedly connected by a cross beam 112; a negative pressure barrel foundation 15, which is a hollow tube structure with an open bottom and a closed perimeter. There are multiple negative pressure barrel foundations 15, and the multiple negative pressure barrel foundations 15 are respectively fixed at the bottoms of the multiple columns 111, and the axis of the negative pressure barrel foundation 15 is parallel to the axis of the column 111; a guiding device, which includes a pile-leaning guiding device 12, a pile-inserting guiding device 13, and a pile-driving guiding device 14 that are arranged in sequence from top to bottom on the main guiding frame 11, and the axes of the pile-leaning guiding device 12, the pile-inserting guiding device 13, and the pile-driving guiding device 14 are collinear.

[0086] Therefore, the negative pressure bucket type guiding frame platform 1 of the present application uses the pile-leaning guiding device 12, the pile-inserting guiding device 13, and the pile-driving guiding device 14 that are arranged in sequence from top to bottom on the main guiding frame 11 to provide hierarchical positioning and guiding for the pile sinking construction of the steel pipe pile 2, realizing the construction control of feeding the steel pipe pile 2, deep-water pile insertion, and precise pile driving, and ensuring the position accuracy and verticality of the steel pipe pile 2. The negative pressure bucket type guiding frame platform 1 of the present application uses the negative pressure barrel foundation 15 to realize the rapid sinking and positioning of the main guiding frame 11, with high installation and reuse efficiency, saving the offshore construction window period and improving the construction efficiency.

[0087] In the description of the present application, it should be noted that the orientation or positional relationship indicated by terms such as "upper" and "lower" is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application. Unless otherwise clearly specified and defined, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific situations.

[0088] It should be noted that in this application, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variation thereof is intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the element.

[0089] The above are only specific embodiments of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application will not be limited to these embodiments shown herein, but rather to the broadest scope consistent with the principles and novel features claimed herein.

Claims

1. A negative pressure bucket type guiding frame platform for pile sinking construction, characterized in that, The negative pressure bucket type guide frame platform (1) includes: A main guide frame (11), which is a rectangular frame structure. The main guide frame (11) includes multiple columns (111). The multiple columns (111) jointly enclose a rectangular structure, and adjacent two columns (111) are fixedly connected by cross beams (112); A negative pressure cylinder foundation (15), which is a hollow tube structure with an open bottom and a closed perimeter. There are multiple negative pressure cylinder foundations (15). The multiple negative pressure cylinder foundations (15) are respectively fixed at the bottoms of the multiple columns (111). The axis of the negative pressure cylinder foundation (15) is parallel to the axis of the column (111); A guiding device, which includes a pile-leaning guiding device (12), a pile-inserting guiding device (13), and a pile-driving guiding device (14) that are arranged in sequence from top to bottom on the main guide frame (11). The axes of the pile-leaning guiding device (12), the pile-inserting guiding device (13), and the pile-driving guiding device (14) are collinear; An upper guiding truss (16) for fixing the pile-leaning guiding device (12) is fixedly arranged at the top of the main guide frame (11). The upper guiding truss (16) is a rectangular frame structure. There are four groups of pile-leaning guiding devices (12). The four groups of pile-leaning guiding devices (12) are symmetrically arranged along the center of the upper guiding truss (16); The pile-leaning guiding device (12) includes a first fixing frame (121) and a second fixing frame (122) that are parallel and spaced apart from each other. A first adjusting frame (123) is detachably connected to the first fixing frame (121), and a second adjusting frame (124) is detachably connected to the second fixing frame (122); The first adjusting frame (123) can move on the first fixing frame (121) closer to and farther away from the second fixing frame (122). The second adjusting frame (124) can move on the second fixing frame (122) closer to and farther away from the first fixing frame (121); A lower guiding truss (17) for fixing the pile-inserting guiding device (13) and the pile-driving guiding device (14) is fixedly arranged in the middle of the main guide frame (11). The lower guiding truss (17) is a rectangular frame structure; There are four groups of pile-inserting guiding devices (13) and four groups of pile-driving guiding devices (14). The four groups of pile-inserting guiding devices (13) and the four groups of pile-driving guiding devices (14) are respectively arranged at the four corners of the lower guiding truss (17); A negative pressure control system is arranged on the main guide frame (11). The negative pressure control system includes a water suction pipeline (5) connected to the negative pressure cylinder foundation (15) and a pump skid (7) connected to the water suction pipeline (5).

2. The negative pressure bucket type guide frame platform for pile sinking construction according to claim 1, wherein: Guide wheel groups (125) are arranged on both the first adjusting frame (123) and the second adjusting frame (124). The guide wheel group (125) includes a base (126) and a slider (127). The slider (127) is slidably connected to the base (126); One end of the slider (127) is provided with a lead screw (128) for driving the slider (127) to reciprocate linearly on the base. The lead screw (128) is threadedly connected to the base (126), and the other end of the slider (127) is rotatably connected with a guide wheel (129).

3. The negative pressure bucket type guiding frame platform for pile sinking construction according to claim 1, wherein: The projections of the lower guiding truss (17) and the main guiding frame (11) are both in the structure of a regular quadrilateral, and the included angle between the diagonals of the lower guiding truss (17) and the diagonals of the main guiding frame (11) is 45 degrees.

4. The negative pressure bucket type guiding frame platform for pile sinking construction according to claim 1, wherein: Both the pile inserting guiding device (13) and the pile driving guiding device (14) are in the structure of a circular sleeve. The inner holes of the pile inserting guiding device (13) and the pile driving guiding device (14) are both in the conical structure with a larger upper part and a smaller lower part, and the minimum inner diameter of the pile inserting guiding device (13) is greater than the minimum inner diameter of the pile driving guiding device (14).

5. The negative pressure bucket type guiding frame platform for pile sinking construction according to claim 1, wherein: Both the pile inserting guiding device (13) and the pile driving guiding device (14) are detachably connected to the lower guiding truss (17) by bolts.

6. The construction method of a negative pressure bucket type guiding frame platform for pile sinking construction according to any one of claims 1 to 5, characterized in that, The method includes the following steps: After the negative pressure bucket type guiding frame platform (1) is processed in the factory, it is transported to the construction site by a floating crane (3). The floating crane (3) hoists the negative pressure bucket type guiding frame platform (1) and cooperates with a cable (4) to sink it to the set position; After the negative pressure bucket type guiding frame platform (1) sinks by its own weight, the pump skid (7) is started to pump out the water in the negative pressure bucket foundation (15) to adjust the internal and external pressure difference of the negative pressure bucket foundation (15), so that the negative pressure bucket type guiding frame platform (1) sinks to the set elevation; The steel pipe pile (2) is transported to the construction site. The floating crane (3) and the pile turning device (8) are used to hoist and turn the steel pipe pile (2), and the steel pipe pile (2) enters the pile leaning guiding device (12). At this time, the bottom of the steel pipe pile (2) is higher than the pile inserting guiding device (13); The floating crane (3) slowly lowers the steel pipe pile (2), and the pile leaning guiding device (12) adjusts the verticality of the steel pipe pile (2) and penetrates the bottom of the steel pipe pile (2) into the pile inserting guiding device (13); The floating crane (3) continues to slowly lower the steel pipe pile (2). The steel pipe pile (2) penetrates into the pile driving guiding device (14) under the combined guiding action of the pile leaning guiding device (12) and the pile inserting guiding device (13), and sinks below the seabed surface under its own weight; The floating crane (3) hoists the pile driving hammer (9) and inserts and drives the steel pipe pile (2). After the steel pipe pile (2) is inserted and driven to the set elevation, the first-stage insertion and driving operation is completed. At this time, the top of the steel pipe pile (2) is higher than the pile leaning guiding device (12); The floating crane (3) hoists the pile follower (18), connects the pile follower (18) to the top of the steel pipe pile (2), and then continues to insert and drive the steel pipe pile (2) by using the pile driving hammer (9). After the steel pipe pile (2) is inserted and driven to the set elevation, the second-stage insertion and driving operation is completed; After completing the pile driving construction of all steel pipe piles (2) at the same location according to the above steps, start the pump skid (7) to inject water into the suction bucket foundation (15) to adjust the internal and external pressure difference of the suction bucket foundation (15), so that the suction bucket type guide frame platform (1) floats, and use the floating crane (3) to hoist the suction bucket type guide frame platform (1) to the next location to continue the pile driving construction.

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