Device for sinking super-long pile sender of steel pipe pile with different diameters and construction method thereof

Abstract

The application discloses a kind of super-long pile sender device for different diameter steel pipe pile sinking and construction method thereof, including pile sender and pile sender accessory structure, the pile sender accessory structure includes articulated rotation pile frame and pile hammer, the pile sender is slidably connected to the outer side of the pile frame, the pile sender includes upper cylinder and lower cylinder, the upper cylinder top is fixed with the pile cap of the pile hammer bottom, the lower cylinder bottom is fixed with variable diameter joint, and the variable diameter joint is used to match and connect steel pipe piles of different diameters.The super-long pile sender pile sinking device of the application can adapt to steel pipe piles of different diameters while ensuring the sinking of steel pipe piles below mud surface, realize the conversion of each process during piling, and relatively simply operate, shorten the pile head replacement time, and improve the piling efficiency.

Description

Technical Field

[0001] This invention belongs to the field of bridge foundation construction technology, specifically relating to an ultra-long pile driver device adapted to the sinking of steel pipe piles of different diameters and its construction method. Background Technology

[0002] In bridge construction, the use of steel pipe piles as bridge foundations is becoming increasingly common, especially in the construction of ultra-long-span bridges spanning rivers or seas. Their stability, excellent load-bearing capacity, and strong adaptability to complex geological conditions make them the preferred choice for approach bridge foundations in the sea. With increasing emphasis on hydrological environmental protection, the pier caps need to be buried below the mud surface to reduce the bridge's impact on water flow. The top surface of the steel pipe piles must also be below the water surface. Currently, large pile hammers cannot be driven into water, therefore, ultra-long pile drivers are needed to meet these construction requirements.

[0003] For offshore bridge foundation construction, there are only similar cases of straight pile construction. Bridge pile foundation construction mostly involves inclined piles. How to keep the pile hammer, pile driver, and steel pipe pile on the same straight line deserves in-depth research. Moreover, bridge engineering piles are not limited to one diameter, and there are many difficulties in adapting the pile driver to various steel pipe pile diameters during the pile driving process. There is an urgent need to invent an ultra-long pile driver device for driving steel pipe piles of different diameters and its construction method. Summary of the Invention

[0004] To address the shortcomings of existing technologies, the present invention aims to provide an ultra-long pile driver device and its construction method suitable for driving steel pipe piles of different diameters. This invention reduces the difficulty of driving piles in water, is easy to operate during construction, and improves the efficiency of steel pipe pile construction.

[0005] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution:

[0006] An ultra-long pile driver device adapted for driving steel pipe piles of different diameters includes a pile driver and an auxiliary structure for the pile driver. The auxiliary structure for the pile driver includes a hinged rotating pile frame and a pile hammer. The pile driver is slidably connected to the outside of the pile frame. The pile driver includes an upper cylinder and a lower cylinder. The top of the upper cylinder is fixed to the pile cap at the bottom of the pile hammer. A variable diameter joint is fixed at the bottom of the lower cylinder. The variable diameter joint is used to match and connect steel pipe piles of different diameters.

[0007] Preferably, the variable diameter joint includes a fixing part and a plurality of connecting parts of different diameters coaxially fixed to the bottom of the fixing part, wherein the diameters of the plurality of connecting parts decrease sequentially from top to bottom.

[0008] Preferably, the fixing part is fixedly connected to the lower cylinder by a plurality of circumferentially arranged connecting stiffeners.

[0009] Preferably, when there is a gap between the variable diameter joint and the steel pipe pile, multiple plug plates are arranged circumferentially within the gap.

[0010] Preferably, the pile driver and the pile frame are slidably engaged via a gripping assembly.

[0011] Preferably, the gripping assembly includes a fixing member, a connecting member, and gripping teeth. One end of the fixing member is fixed to the pile driver, and the other end of the fixing member is connected to the connecting member through a pin assembly. The other end of the connecting member is detachably connected to two opposing gripping teeth through a fastening assembly, and the other ends of the two gripping teeth are engaged with guide grooves on the pile frame.

[0012] Preferably, the pin assembly includes two pins arranged laterally on the upper and lower layers and pin holes provided on the fixing member and the connecting member, and the fastening assembly includes two pairs of fasteners arranged vertically on the left and right sides and mounting holes provided on the connecting member and the gripper.

[0013] Preferably, both the upper cylinder and the lower cylinder adopt a thin-walled hollow structure, and the wall thickness of both the upper cylinder and the lower cylinder is twice the wall thickness of the steel pipe pile.

[0014] Preferably, the pile driver is provided with multiple lifting lugs.

[0015] A construction method for an ultra-long pile driver device adapted to the driving of steel pipe piles of different diameters includes the following steps:

[0016] S1. Install the pile driver: After the piling vessel and the delivery vessel arrive at the designated area, they anchor and position themselves. The pile frame on the piling vessel tilts forward and the pile driver is hoisted. Initially, a level adjustment is used. Through system conversion, the pile driver is vertically inserted into the pile cap at the bottom of the pile hammer. The pile driver and the pile cap are connected by an anchor chain. The gripper on the side of the pile driver forms a fastening with the pile frame through its own rotation.

[0017] S2. Lifting and attitude adjustment of the pile driver: The steel pipe pile is lifted by a pile driving vessel, and the variable diameter joint at the bottom of the pile driver is inserted into the steel pipe pile. The steel pipe pile is fixed by the pile gripper, so that the center of the pile driver, the pile hammer and the steel pipe pile are on the same straight line.

[0018] S3. Adjusting the slope of steel pipe piles: The steel pipe piles are positioned by positioning the construction vessel and adjusting the pile frame. The steel pipe piles are then driven to a certain depth by the pile hammer, pile driver, and the weight of the steel pipe pile itself. The steel pipe piles can stabilize themselves by sinking into the mud under their own weight. The claws on the pile driver are then released to allow the pile to be driven into place by the hammer.

[0019] S4. Pile driver extraction: After the pile is driven into place, the pile driver is pulled up using a pile gripper. After the pile driver is lifted, the next steel pipe pile is constructed.

[0020] The present invention has the following advantages and beneficial effects:

[0021] 1. This invention effectively solves the problem of underwater driving of steel pipe piles. While ensuring that the steel pipe piles are driven into place, it can also realize the tilting of the steel pipe piles and the movement of the steel pipe piles into the mud. The conversion of each process during implementation is relatively simple and easy to operate in construction.

[0022] 2. The pile driving system of the present invention can be adapted to steel pipe piles of different diameters, reducing the labor and time costs of replacing pile heads and improving the construction efficiency of the pile driver. Attached Figure Description

[0023] Figure 1 This is a front structural diagram of the pile driver device of the present invention.

[0024] Figure 2 This is a three-dimensional structural diagram of the variable diameter connector of the present invention.

[0025] Figure 3 This is a schematic diagram of the structure at the connection between the variable diameter joint and the lower cylinder of the present invention.

[0026] Figure 4 yes Figure 3 Schematic diagram of the cross-sectional structure along the AA direction.

[0027] Figure 5 This is a schematic diagram of the overall structure of the gripping component of the present invention.

[0028] Figure 6 This is an exploded structural diagram of the gripping component of the present invention.

[0029] Figure 7 This is a schematic diagram of the structure of the pile driver of the present invention.

[0030] Figure 8 This is a schematic diagram of the structure for installing steel pipe piles according to the present invention.

[0031] Figure 9 This is a schematic diagram of the structure for adjusting the inclination of steel pipe piles according to the present invention.

[0032] Figure 10 This is a schematic diagram of the steel pipe pile of the present invention being driven into place.

[0033] Reference numerals: 1-Pile driver; 11-Upper cylinder; 12-Lower cylinder; 13-Variable diameter joint; 131-Fixing part; 132-Connecting part; 133-Plug plate; 14-Connecting stiffener plate; 15-Lifting lug; 16-Ring plate and bolt; 2-Pile driver auxiliary structure; 21-Pile frame; 22-Pile hammer; 23-Pile cap; 3-Grab assembly; 31-Fixing part; 32-Connecting part; 33-Grab tooth; 34-Pin assembly; 341-Pin; 342-Pin hole; 35-Fastening assembly; 351-Fastener; 352-Mounting hole; 4-Steel pipe pile; 5-Pile driver. Detailed Implementation

[0034] To enable those skilled in the art to better understand the technical solutions of the present invention, preferred embodiments of the present invention are described below in conjunction with specific examples. However, it should be understood that the accompanying drawings are for illustrative purposes only and should not be construed as limiting the present patent. For better illustration of this embodiment, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable that some well-known structures and their descriptions may be omitted in the drawings for those skilled in the art. The positional relationships described in the drawings are for illustrative purposes only and should not be construed as limiting the present patent.

[0035] like Figure 1-10 As shown, the present invention provides an ultra-long pile driver device for sinking steel pipe piles of different diameters, including a pile driver 1 and a pile driver auxiliary structure 2. The pile driver auxiliary structure 2 includes a hinged rotating pile frame 21, a pile hammer 22 and a pile cap 23.

[0036] like Figure 1 As shown, in some examples, the pile driver 1 includes an upper cylinder 11 and a lower cylinder 12. The upper cylinder 11 and the lower cylinder 12 are connected by upper and lower ring plates and bolts 16, which can be located externally or internally. The top of the upper cylinder 11 is fixed to the pile cap 23 at the bottom of the pile hammer 22, and a variable diameter connector 13 is fixed to the bottom of the lower cylinder 12. The variable diameter connector 13 is used to match and connect steel pipe piles 4 of different diameters. This allows for the adaptation of steel pipe piles 4 of different diameters, reducing the labor and time costs of replacing pile heads and improving the construction efficiency of the pile driver 1. Drainage holes and mud discharge holes are also provided on the surfaces of the upper cylinder 11 and the lower cylinder 12.

[0037] like Figure 2As shown, specifically, the variable diameter joint 13 includes a fixing part 131 and multiple connecting parts 132 of different diameters coaxially fixed to the bottom of the fixing part 131. The diameters of the multiple connecting parts 132 decrease sequentially from top to bottom. The fixing part 131 and the multiple connecting parts 132 can be integrally cast. The fixing part 131 is fixedly connected to the lower cylinder 12 by 12 circumferentially arranged connecting stiffeners 14. The connecting stiffeners 14 can strengthen the connection between the fixing part 131 and the lower cylinder 12. The connection between the connecting stiffeners 14 and the fixing part 131 and the lower cylinder 12 is fixed by welding, ensuring the stability of the pile driver 1 joint. When there is a gap between the variable diameter joint 13 and the steel pipe pile 4, multiple circumferentially arranged plug plates 133 are placed within the gap to further ensure the connection stability of the pile driver 1 joint.

[0038] like Figure 1 As shown, in some examples, two gripping assemblies 3 are used to connect the pile driver 1 and the pile frame 21. One of the gripping assemblies 3 should be located about 3 meters away from the top of the pile driver 1 so as not to affect the connection between the pile driver 1 and the pile cap 23. The other gripping assembly 3 is installed as close to the bottom of the pile driver 1 as possible. The pile driver 1 is equipped with a total of 6 lifting lugs 15. Four of the lifting lugs 15 are located on the upper cylinder 11 at the same height as the upper gripping assembly 3. The pile driver 1 and the pile cap 23 are connected by anchor chains. The other two lifting lugs 15 are located on the lower cylinder 12 to facilitate the lifting operation of the pile driver 1.

[0039] In some examples, both the upper cylinder 11 and the lower cylinder 12 adopt a thin-walled hollow structure with a wall thickness twice that of the steel pipe pile 4, which can ensure their own durability.

[0040] like Figure 5 and 6 As shown, in some examples, the gripping assembly 3 includes a fixing member 31, a connecting member 32, and grippers 33. One end of the fixing member 31 is welded and fixed to the pile driver 1, and the other end of the fixing member 31 is connected to the connecting member 32 through a pin assembly 34. The other end of the connecting member 32 is detachably connected to two opposing grippers 33 through a fastening assembly 35. The other ends of the two grippers 33 are engaged with guide grooves on the pile frame 21. By engaging the grippers 33 on the pile driver 1 with the pile frame 21, the pile driver 1, the pile hammer 22, and the steel pipe pile 4 can be kept on the same straight line.

[0041] Specifically, the pin assembly 34 includes two pins 341 arranged horizontally on the upper and lower layers, and pin holes 342 provided on the fixing member 31 and the connecting member 32. The fastening assembly 35 includes two pairs of fasteners 351 arranged vertically on the left and right sides, and mounting holes 352 provided on the connecting member 32 and the gripper 33. The fasteners 351 can be connected using bolts and nuts. When one fastener 351 in each pair is released, the gripper 33 will rotate around the other fastener 351, thereby disengaging from the pile frame 21. The gripper assembly 3 enables rapid switching between connection and disengagement between the pile driver 1 and the pile frame 21, adapting to the construction needs of different pile driving stages.

[0042] like Figure 7-10 As shown, based on the above structural design, the present invention also provides a construction method for an ultra-long pile driver device adapted to the driving of steel pipe piles of different diameters, comprising the following steps:

[0043] S1. Install the pile driver: After the piling vessel and the delivery vessel arrive at the designated area, they anchor and position themselves. The pile frame 21 on the piling vessel is tilted forward, and the pile driver 1 is hoisted. Initially, a leveling adjustment is used. Through system conversion, the pile driver 1 is vertically inserted into the pile cap 23 at the bottom of the pile hammer 22. The pile driver 1 and the pile cap 23 are connected by an anchor chain. The gripper 33 on the side of the pile driver 1 forms a fastening with the pile frame 21 by its own rotation.

[0044] S2. Lifting and attitude adjustment of the pile driver: The steel pipe pile 4 is lifted by a pile driving boat. The variable diameter joint 13 at the bottom of the pile driver 1 is inserted into the steel pipe pile 4. The steel pipe pile 4 is fixed by the pile gripper 5 so that the center of the pile driver 1, the pile hammer 22 and the steel pipe pile 4 are on the same straight line.

[0045] S3. Adjusting the slope of the steel pipe pile: The steel pipe pile 4 is positioned by the positioning of the construction vessel and the adjustment of the pile frame 21. The steel pipe pile 4 sinks to a certain depth by the weight of the pile hammer 22, the pile driver 1, and the steel pipe pile 4. The steel pipe pile 4 can stabilize itself by sinking into the mud by its own weight. The claw on the pile driver 1 is released to allow it to hammer and drive the pile into place.

[0046] S4. Pile driver extraction: After the pile is driven into place, the pile driver 1 is pulled up by the pile clamp 5. After the pile driver 1 is lifted, the next steel pipe pile 4 is constructed.

[0047] In summary, the ultra-long pile driver of this invention can not only ensure that the steel pipe pile is driven below the mud surface, but also adapt to steel pipe piles of different diameters, realize the conversion of various processes during pile driving, simplify operation, shorten the pile head replacement time, and improve the efficiency of pile driving.

[0048] Based on the description and accompanying drawings of this invention, those skilled in the art can easily manufacture or use the ultra-long pile driver device and its construction method adapted to the sinking of steel pipe piles of different diameters, and can produce the positive effects described in this invention.

[0049] Unless otherwise specified, in this invention, terms such as "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe orientation or positional relationships in this invention are for illustrative purposes only and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood in conjunction with the accompanying drawings and according to the specific circumstances.

[0050] Unless otherwise explicitly specified and limited, the terms "set up," "connected," and "linked" in this invention should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0051] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Any simple modifications or equivalent changes made to the above embodiments based on the technical essence of the present invention shall fall within the protection scope of the present invention.

Claims

1. A pile driver device adapted to the driving of ultra-long steel pipe piles of different diameters, comprising a pile driver (1) and an auxiliary structure for the pile driver (2), characterized in that, The pile driver auxiliary structure (2) includes a hinged rotating pile frame (21) and a pile hammer (22). The pile driver (1) is slidably connected to the outside of the pile frame (21). The pile driver (1) includes an upper cylinder (11) and a lower cylinder (12). The top of the upper cylinder (11) is fixed to the pile cap (23) at the bottom of the pile hammer (22). A variable diameter joint (13) is fixed at the bottom of the lower cylinder (12). The variable diameter joint (13) is used to match and connect steel pipe piles (4) of different diameters. The pile driver (1) and the pile frame (21) are slidably engaged by a gripping assembly (3); the gripping assembly (3) includes a fixing member (31), a connecting member (32), and grippers (33). One end of the fixing member (31) is fixed to the pile driver (1), and the other end of the fixing member (31) is connected to the connecting member (32) through a pin assembly (34). The other end of the connecting member (32) is detachably connected to two opposing grippers (33) through a fastening assembly (35). The other ends of the two grippers (33) are connected to guide grooves on the pile frame (21). The pin assembly (34) includes two pins (341) arranged horizontally on the upper and lower layers and pin holes (342) provided on the fixing member (31) and the connecting member (32). The fastening assembly (35) includes two pairs of fasteners (351) arranged vertically on the left and right sides and mounting holes (352) provided on the connecting member (32) and the gripper (33). When one of the fasteners (351) in each pair of fasteners (351) is released, the gripper (33) will rotate around the other fastener (351), thereby causing the gripper (33) to disengage from the pile frame (21).

2. The ultra-long pile driver device for driving steel pipe piles of different diameters as described in claim 1, characterized in that: The variable diameter connector (13) includes a fixing part (131) and multiple connecting parts (132) of different diameters coaxially fixed to the bottom of the fixing part (131), with the diameters of the multiple connecting parts (132) decreasing sequentially from top to bottom.

3. The ultra-long pile driver device for driving steel pipe piles of different diameters as described in claim 2, characterized in that: The fixing part (131) and the lower cylinder (12) are fixedly connected by a plurality of circumferentially arranged connecting stiffeners (14).

4. The ultra-long pile driver device for driving steel pipe piles of different diameters according to claim 2, characterized in that: When there is a gap between the variable diameter joint (13) and the steel pipe pile (4), multiple plug plates (133) are arranged circumferentially in the gap.

5. The ultra-long pile driver device for driving steel pipe piles of different diameters according to claim 1, characterized in that: Both the upper cylinder (11) and the lower cylinder (12) adopt a thin-walled hollow structure, and the wall thickness of the upper cylinder (11) and the lower cylinder (12) is twice the wall thickness of the steel pipe pile (4).

6. The ultra-long pile driver device for driving steel pipe piles of different diameters according to claim 1, characterized in that: The pile driver (1) is equipped with multiple lifting lugs (15).

7. A construction method for an ultra-long pile driver device adapted for driving steel pipe piles of different diameters, as described in any one of claims 1-6, characterized in that, Includes the following steps: S1. Install the pile driver: After the pile driving vessel and the pile driver arrive at the designated area, they anchor and position themselves. The pile frame (21) on the pile driving vessel is tilted forward, and the pile driver (1) is hoisted. The horizontal adjustment is adopted at the beginning. Through system conversion, the pile driver (1) is vertically inserted into the pile cap (23) at the bottom of the pile hammer (22). The pile driver (1) and the pile cap (23) are connected by the anchor chain. The gripper (33) on the side of the pile driver (1) forms a fastening with the pile frame (21) by rotating itself. S2. Lifting and attitude adjustment of the pile driver: The steel pipe pile (4) is lifted by a pile driving boat. The variable diameter joint (13) at the bottom of the pile driver (1) is inserted into the steel pipe pile (4). The steel pipe pile (4) is fixed by the pile clamp (5) so that the center of the pile driver (1), the pile hammer (22) and the steel pipe pile (4) are on the same straight line. S3, Adjusting the slope of the steel pipe pile: The steel pipe pile (4) is positioned by positioning and adjusting the pile frame (21) of the construction vessel. The steel pipe pile (4) sinks to a certain depth by the weight of the pile hammer (22), the pile driver (1), and the steel pipe pile (4). The steel pipe pile (4) sinks into the mud by its own weight and can stabilize itself. The grabbing component (3) on the pile driver (1) is released so that it can be hammered freely to drive the pile into place. S4. Pile driver extraction: After the pile is driven into place, the pile driver (1) is pulled by the pile clamp (5). After the pile driver (1) is lifted, the next steel pipe pile (4) is constructed.

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