A flood resisting method for a steel pipe pile structure in water and a steel pipe pile structure in water

Abstract

The application discloses a flood resisting method for a steel pipe pile structure in water and the steel pipe pile structure in water, and relates to the technical field of the steel pipe pile structure in water. The specific steps are as follows: the steel pipe piles are connected through a transverse water flow direction connecting system, the overall horizontal bearing capacity of the steel pipe pile structure is improved, and the transverse water flow direction connecting system is orthogonal or oblique to the water flow direction; when flood occurs, the water flow force acts on the transverse water flow direction connecting system, the connection between the transverse water flow direction connecting system and the steel pipe piles is adjusted in advance, the transverse water flow direction connecting system is rotated or moved, the water resistance area of the transverse water flow direction connecting system is reduced, and the load of the water flow on the transverse water flow direction connecting system is reduced; after the flood ends, the transverse water flow direction connecting system is reset, the adjacent steel pipe piles are reconnected, and the steel pipe pile structure returns to normal use. The negative effect of the transverse water flow direction connecting system during flood resisting is eliminated, the water resistance area during the flood period is reduced, and the flood resisting capacity of the structure is enhanced.

Description

Technical Field

[0001] This invention relates to the field of underwater steel pipe pile structures, and in particular to a flood control method for underwater steel pipe pile structures and an underwater steel pipe pile structure. Background Technology

[0002] During construction in water areas, the extensive use of underwater steel pipe pile structures, such as steel trestle bridges and steel platforms, transforms water-based operations into land-based operations to facilitate construction. In the design and construction of underwater steel pipe pile structures, horizontal bracing between piles plays a crucial role in improving the overall horizontal bearing capacity: it is essential for resisting horizontal forces in the cross-current direction, such as vehicle braking forces; similarly, it is essential for resisting horizontal forces in the downstream direction, such as water flow forces.

[0003] During flood season, when the rising water level encounters the vertical and horizontal water flow connection systems, the high water flow velocity results in a large impact force on the horizontal water flow connection system, leading to a greater load on the horizontal water flow connection system and increasing the risk of accidents.

[0004] Reference Figure 8 In traditional prefabricated flat-joint piles, the clamp 12 is limited by its fixed radius and can only be tightened through a circumferential flange. This means the clamp 12 can only grip the steel pipe pile and is ineffective in accommodating pile spacing errors during construction. (Refer to...) Figure 9 Traditional prefabricated flat tie rods 11 adapt to pile spacing errors by adjusting their length. However, pile verticality causes the flat tie rods to rotate, making them unable to adapt to pile verticality deviations during construction.

[0005] For example, CN113293757A, published on August 24, 2021, discloses a steel pipe pile connection device and its operating method, including: a set of arc-shaped connectors, each with the same radial radius that matches the outer diameter of the steel pipe pile, so that the arc-shaped connectors can fit snugly against the outer wall of the steel pipe pile; the arc-shaped connectors are provided with two through holes along the axial direction, respectively positioned near the ends of the arc-shaped connectors; it also includes several connecting pins, the diameter of which matches the diameter of the through holes; in use, the arc-shaped connectors are placed across the ends of two steel pipe piles, and the ends of the two steel pipe piles are aligned and tightly fitted; then the connecting pins are sequentially passed through the through holes in the arc-shaped connectors and the pre-drilled holes on the steel pipe piles corresponding to the positions of the through holes, thereby connecting the two sections of steel pipe piles. The connection device disclosed above cannot be moved during flood season, resulting in a large load on the connection device during flood season and poor flood resistance. Summary of the Invention

[0006] The purpose of this invention is to provide a flood-resistant method and connecting rod structure for underwater steel pipe piles that reduces the load on the cross-flow direction connection system during flood season, thereby enhancing the flood resistance of the structure. This invention reduces the load of the cross-flow direction connection system by adjusting its position during flood season, thereby decreasing the water-blocking area of ​​the connection system and reducing the load on the cross-flow direction connection system.

[0007] To achieve the above objectives, the technical solution adopted by the present invention to solve its technical problem is: a method for flood control using steel pipe piles in water, the specific steps of which are as follows:

[0008] Step 1: The steel pipe piles are connected by a cross-flow direction connection system to improve the overall horizontal bearing capacity of the steel pipe pile structure. The cross-flow direction connection system is orthogonal or oblique to the flow direction.

[0009] Step 2: When a flood occurs, the force of the water flow will act on the cross-flow connection system. Adjust the connection between the cross-flow connection system and the steel pipe pile in advance, rotate or move the cross-flow connection system to reduce the water-blocking area of ​​the cross-flow connection system, and reduce the load of the water flow on the cross-flow connection system.

[0010] Step 3: After the flood ends, reset the cross-flow connection system, reconnect the adjacent steel pipe piles, and restore the steel pipe pile structure to normal use.

[0011] As a further embodiment of the present invention, the specific steps of moving the transverse flow direction connection system in step 2 are as follows: separating one end of the transverse flow direction connection system from the steel pipe pile, rotating the transverse flow direction connection system so that the transverse flow direction connection system is parallel to the flow direction, and reducing the load of the flow on the transverse flow direction connection system.

[0012] As a further embodiment of the present invention, the transverse flow direction connection system is connected to the steel pipe pile through a limiting structure. The specific steps for moving the transverse flow direction connection system in step 2 are as follows: remove the vertical limiting structure on the steel pipe pile, and move the transverse flow direction connection system by hoisting, thereby reducing the load of the water flow on the transverse flow direction connection system.

[0013] As a further embodiment of the present invention, the limiting structure is detachably connected to the steel pipe pile, and the limiting structure is connected to the cross-flow direction connection system.

[0014] A submerged steel pipe pile structure for the aforementioned flood control method of submerged steel pipe pile structure includes steel pipe piles and a transverse water flow direction connection system disposed between the steel pipe piles. The transverse water flow direction connection system includes horizontal connecting rods and a connecting mechanism. The two ends of the horizontal connecting rods are connected to the steel pipe piles through the connecting mechanism. A strut is provided between adjacent horizontal connecting rods in the vertical direction.

[0015] As a further embodiment of the present invention, the connecting mechanism includes a fixed clamping plate and a rotating clamping plate. The fixed clamping plate is fixedly connected to the horizontal connecting rod, and the rotating clamping plate is hinged to the horizontal connecting rod. The fixed clamping plate and the rotating clamping plate are connected by bolts.

[0016] As a further embodiment of the present invention, both the fixed clamping plate and the rotating clamping plate are provided with flange plates, the flange plates are provided with through holes for bolts to pass through, and both the fixed clamping plate and the rotating clamping plate are provided with adjustable supports.

[0017] As a further embodiment of the present invention, the adjustable support pad includes a threaded rod and a contact block. The threaded rod is threadedly connected to the fixed plate and the rotating plate, and the end of the threaded rod extending into the fixed plate and the rotating plate is provided with a contact block.

[0018] As a further embodiment of the present invention, the connecting mechanism is a limiting block, which is connected to the steel pipe pile and the limiting block is connected to the horizontal connecting rod.

[0019] As a further embodiment of the present invention, a slider and a guide seat are provided between the horizontal connecting rod and the steel pipe pile. The slider is connected to the horizontal connecting rod, the guide seat is connected to the steel pipe pile, the slider is sleeved in the guide seat, and a steel wire rope is provided on the horizontal connecting rod.

[0020] The beneficial effects of this invention are:

[0021] During flood control, the connecting system is adjusted to be parallel to the direction of water flow. After the flood control is completed, the connecting rod is restored to eliminate the negative effect of the connecting system in the direction of cross water flow during flood control, reduce the water-blocking area during the flood season, and thus enhance the flood resistance of the structure.

[0022] During flood season, the cross-flow direction connection system, composed of horizontal connecting rods, rotating plates, fixed plates, and bolts, is rotated to reduce the water-blocking area of ​​the cross-flow direction connection system, thereby reducing the load on the cross-flow direction connection system. After rotating the cross-flow direction connection system, flood control piles are driven on the other side of the cross-flow direction connection system through the idle rotating plates and fixed plates, connecting the idle side of the cross-flow direction connection system to the flood control piles, further increasing the stability of the entire steel pipe pile structure. After the flood control is completed, the cross-flow direction connection system is reset to continue the connection and reinforcement work between the steel pipe piles.

[0023] The cross-flow direction connection system, composed of limit blocks and parallel links, increases the horizontal bearing capacity between steel pipe pile structures during non-flood seasons. During flood seasons, the limit blocks are removed and the entire cross-flow direction connection system is hoisted underwater using steel wire ropes, thereby reducing the impact force of the water flow on the cross-flow direction connection system and reducing the load on the cross-flow direction connection system. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of one embodiment of the connecting rod structure of the present invention.

[0025] Figure 2 for Figure 1 A top view of the connecting rod structure after installation, showing the direction of cross-flow.

[0026] Figure 3 for Figure 2 Side view.

[0027] Figure 4 for Figure 1 A schematic diagram of the connection rod structure with one end separated from the steel pipe pile.

[0028] Figure 5 for Figure 1 A schematic diagram of the rotating connecting rod structure.

[0029] Figure 6 for Figure 5 Side view.

[0030] Figure 7 for Figure 6 The left view.

[0031] Figure 8 This is a schematic diagram of the clamp structure in an existing prefabricated flat coupling.

[0032] Figure 9 This is a schematic diagram of an existing traditional prefabricated horizontal coupling length adjustment structure.

[0033] Figure 10 This is a schematic diagram of another embodiment of the connecting rod structure of the present invention.

[0034] Figure 11 for Figure 10 A partial structural diagram.

[0035] Figure 12 for Figure 10 Side view.

[0036] Figure 13 for Figure 10 Schematic diagram of the steel pipe pile connection structure after flood control.

[0037] Figure 14 A flowchart illustrating the specific methods for flood control of steel pipe pile structures in water.

[0038] In the attached diagram: 1-horizontal connecting rod, 2-fixed clamping plate, 3-rotating clamping plate, 4-flange plate, 5-adjustable support pad, 6-strut, 7-slider, 8-guide seat, 9-limiting block, 10-wire rope, 11-horizontal connecting rod, 12-clamp. Detailed Implementation

[0039] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0040] The specific implementation of the present invention will be described in detail below with reference to specific embodiments.

[0041] A method for flood control using steel pipe piles in water, referring to Figure 14 The specific steps are as follows:

[0042] Step 1: The steel pipe piles are connected by a cross-flow direction connection system to improve the overall horizontal bearing capacity of the steel pipe pile structure. The cross-flow direction connection system is orthogonal or oblique to the flow direction.

[0043] Step 2: When a flood occurs, the force of the water flow will act on the cross-flow connection system. Adjust the connection between the cross-flow connection system and the steel pipe pile in advance, rotate or move the cross-flow connection system to reduce the water-blocking area of ​​the cross-flow connection system, and reduce the load of the water flow on the cross-flow connection system.

[0044] Step 3: After the flood subsides, reset the cross-flow connection system, reconnect adjacent steel pipe piles, and restore the steel pipe pile structure to normal use.

[0045] During flood control, the connection between the cross-flow direction connection system and the steel pipe pile is adjusted, and the cross-flow direction connection system is rotated or moved to reduce the water-blocking area of ​​the cross-flow direction connection system. This reduces the load of the water flow on the cross-flow direction connection system, eliminates the negative effect of the cross-flow direction connection system during flood control, and reduces the water-blocking area during the flood season, thereby enhancing the flood resistance of the structure.

[0046] A submerged steel pipe pile structure is used in the aforementioned flood control method for submerged steel pipe pile structures. The structure includes steel pipe piles and a transverse flow direction connection system installed between the steel pipe piles. The transverse flow direction connection system includes a horizontal connecting rod 1 and a connecting mechanism. Both ends of the horizontal connecting rod 1 are connected to the steel pipe piles via the connecting mechanism. The connecting mechanism allows for a detachable connection between the horizontal connecting rod 1 and the steel pipe piles, enabling the separation of one end of the horizontal connecting rod 1 from the steel pipe pile during flood season. The horizontal connecting rod 1 can then be rotated to be parallel to the flow direction, thereby reducing the impact of floodwaters on the transverse flow direction connection system and increasing the load on the entire device during floods.

[0047] Reference Figure 3 A strut 6 is provided between adjacent horizontal connecting rods 1 to increase the stability of the entire structure. In this embodiment, in the vertical direction (the axis of the steel pipe pile is the vertical direction), two adjacent horizontal connecting rods 1 are welded to the strut 6, thereby combining the two horizontal connecting rods 1 into a whole in the vertical direction.

[0048] Reference Figure 3 The struts 6 between adjacent horizontal connecting rods 1 on the vertical square are arranged in a cross pattern, which further increases the stability of the entire structure.

[0049] In one embodiment, the specific steps of rotating the transverse flow direction connection system in step 2 are as follows: separating one end of the transverse flow direction connection system from the steel pipe pile, and rotating the transverse flow direction connection system so that it is parallel to the water flow direction, thereby reducing the load of the water flow on the transverse flow direction connection system. In this embodiment, by rotating the transverse flow direction connection system to be parallel to the water flow direction, the water-blocking area of ​​the transverse flow direction connection system is reduced, thereby reducing the force of water on the transverse flow direction connection system and thus reducing the load.

[0050] In this embodiment, as Figure 1-7 As shown, the connecting mechanism includes a fixed clamping plate 2 and a rotating clamping plate 3. The fixed clamping plate 2 is fixedly connected to the horizontal connecting rod 1, and the rotating clamping plate 3 is hinged to the horizontal connecting rod 1. The fixed clamping plate 2 and the rotating clamping plate 3 are connected by bolts. Specifically, the rotating clamping plate 3 is connected to the horizontal connecting rod 1 by a pin, and the fixed clamping plate 2 is welded to the horizontal connecting rod 1. In this embodiment, both the rotating clamping plate 3 and the fixed clamping plate 2 are arc-shaped, and the rotating clamping plate 3 and the fixed clamping plate 2 are combined to form a ring, which is adapted to the shape of the steel pipe pile.

[0051] In use, rotating the rotating plate 3 allows the steel pipe pile to be fitted between the fixed plates 2. Rotating the rotating plate 3 also allows the rotating plate 3 and the fixed plate 2 to fit together. The rotating plate 3 and the fixed plate 3 on the same side of the horizontal connecting rod 1 are connected by bolts. The horizontal connecting rod 1 is used to raise and lower adjacent steel pipe piles for connection and reinforcement. When the water flow impacts the cross-flow connection system during a flood, one side of the horizontal connecting rod 1 is separated from the steel pipe pile, making the horizontal connecting rod 1 parallel to the water flow direction. Flood-resistant piles are constructed on the unconnected side of the horizontal connecting rod 1. The horizontal connecting rod 1 is connected to the flood-resistant pile by rotating the plate 3 and the fixed plate 2. After the flood control is completed, the horizontal connecting rod 1 is restored to its original position, eliminating the negative effect of the cross-flow connection system during flood control, reducing the water-blocking area during the flood season, and thus enhancing the flood resistance of the structure.

[0052] Specifically, refer to Figure 1 Both the fixed clamping plate 2 and the rotating clamping plate 3 are provided with flange plates 4. The flange plates 4 are provided with through holes for bolts to pass through. The flange plates 4 are used to achieve a stable connection between the fixed clamping plate 2 and the rotating clamping plate 3. Specifically, the flange plates 4 are welded to the fixed clamping plate 2 and to the rotating clamping plate 3.

[0053] Reference Figure 1Both the fixed clamping plate 2 and the rotating clamping plate 3 are equipped with adjustable supports 5. The adjustable supports 5 enable the fixed clamping plate 2 and the rotating clamping plate 3 to be stably connected to the steel pipe pile. The fixed clamping plate 2 and the rotating clamping plate 3 are suitable for steel pipe piles of different diameters and can accommodate the inevitable pile spacing and verticality errors during steel pipe pile construction. This improves the degree of assembly, increases on-site construction efficiency, shortens the construction period, and saves costs.

[0054] Reference Figure 1 The adjustable support 5 includes a threaded rod and a contact block. The threaded rod is threadedly connected to the fixed plate 2 and the rotating plate 3. The end of the threaded rod that extends into the fixed plate 2 and the rotating plate 3 is provided with a contact block. Rotating the threaded rod causes the contact block to move, thereby making the contact block contact with the steel pipe pile, thus achieving a stable connection between the fixed plate 2, the rotating plate 3 and the steel pipe pile. Specifically, the contact block is an arc-shaped plate, thereby ensuring stable contact between the contact block and the steel pipe pile.

[0055] The specific steps for using the underwater steel pipe pile structure in this embodiment for flood control are as follows:

[0056] Step 1: Make horizontal connecting rod 1, fixed clamping plate 2, rotating clamping plate 3, adjustable support pad 5 and support rod 6 and connect them into a whole. In this embodiment, the two horizontal connecting rods 1 in the vertical direction are connected into a whole by the support rod 6.

[0057] Step 2: Hoist the entire device and move it to the direction of cross-flow. Place the two ends of the horizontal connecting rod 1 and the fixed plates 2 on the steel pipe pile. Rotate the rotating plate 3 so that the flange plate 4 on the rotating plate 3 contacts the flange plate 4 on the fixed plate 2. Connect the horizontal connecting rod 1 to the steel pipe pile with bolts.

[0058] Step 3: During flood control, open one end of the horizontal connecting rod 1 and rotate the entire horizontal connecting rod 1 to be parallel to the direction of water flow. Then, use the idle fixed clamping plate 2 and rotating clamping plate 3 as guides to construct the flood control pile and connect the horizontal connecting rod 1 to the flood control pile.

[0059] Step 4: After the flood control, separate the horizontal connecting rod 1 from the flood control pile and reset it.

[0060] Step 2 specifically includes:

[0061] 2.1 Unscrew the bolts on the flange plate 4 to separate the rotating clamping plate 3 from the fixed clamping plate 3 and rotate it until it is close to the horizontal connecting rod 1;

[0062] 2.2 The overall hoisting connection system is adjusted so that the center of the four fixed clamping plates 2 coincides with the center of the steel pipe pile;

[0063] 2.3 Adjust the rotating clamping plate 3 to make it fit tightly against the fixed clamping plate 2, and initially tighten the flange bolts;

[0064] 2.4 Adjust the adjustable support 5 to make the fixed clamping plate 2 and the rotating clamping plate 3 tightly against the steel pipe pile;

[0065] 2.5 Tighten the flange bolts again.

[0066] Step 3 specifically includes:

[0067] 3.1 Only loosen the flange bolts at point A of the steel pipe pile to separate the rotating clamping plate 3 from the fixed clamping plate 2 and rotate it until it is close to the horizontal connecting rod 1;

[0068] 3.2 Loosen the flange bolts at point B of the steel pipe pile, and finely adjust the adjustable support 5 to allow the entire flat connecting rod 1 to rotate around the steel pipe pile.

[0069] 3.3 The overall rotating cross-flow direction connection system is connected to the flow direction.

[0070] 3.4 Adjust the adjustable pads 5 on the fixed plate 2 and the rotating plate 3 at point B of the steel pipe pile so that the fixed plate 2 and the rotating plate 3 are tightly against the steel pipe pile; tighten the flange bolts at point B of the steel pipe pile.

[0071] 3.6 Utilize the unused fixed clamping plate 2 and rotating clamping plate 3 as guides for driving steel pipe piles C (flood control piles).

[0072] 3.7 Adjust the adjustable pads 5 on the fixed plate 2 and the rotating plate 3 at point C of the steel pipe pile so that the fixed plate 2 and the rotating plate 3 are tightly pressed against the steel pipe pile.

[0073] 3.8 Tighten the flange bolts at point C of the steel pipe pile.

[0074] Step 4 specifically includes:

[0075] 4.1 Only loosen the flange bolts at C of the steel pipe pile to separate the rotating clamping plate 3 from the fixed clamping plate 2 and rotate it until it is close to the horizontal connecting rod 1;

[0076] 4.2 Loosen the flange bolts at point B of the steel pipe pile, and finely adjust the adjustable support 5 to allow the entire flat connecting rod 1 to rotate around the steel pipe pile.

[0077] 4.3 The entire rotating system is connected to the cross-flow direction by rotating in the direction of water flow.

[0078] 4.4 Adjust the rotating clamping plate 3 at point A of the steel pipe pile so that it is close to the fixed clamping plate 2, and initially tighten the flange bolts;

[0079] 4.5 Adjust the adjustable pads 5 on the fixed plate 2 and rotating plate 3 at point A of the steel pipe pile so that the fixed plate 2 and rotating plate 3 are tightly against the steel pipe pile; tighten the flange bolts again;

[0080] 4.6 Adjust the adjustable pads 5 on the fixed plate 2 and the rotating plate 3 at point B of the steel pipe pile so that the fixed plate 2 and the rotating plate 3 are tightly against the steel pipe pile; tighten the flange bolts at point B of the steel pipe pile.

[0081] In another embodiment, the cross-flow direction connection system is connected to the steel pipe pile through a limiting structure. The specific steps for moving the cross-flow direction connection system in step 2 are as follows: remove the vertical limiting structure on the steel pipe pile, and move the cross-flow direction connection system by hoisting. The load of the water flow on the cross-flow direction connection system is reduced. Specifically, by moving the cross-flow direction connection system underwater to touch the mud surface, the impact of the fast-flowing water on the cross-flow direction connection system during the flood season is reduced.

[0082] In this embodiment, as Figure 10-13 As shown, the connecting mechanism is a limiting block 9, which is connected to the steel pipe pile and the horizontal connecting rod 1. The limiting block 9 limits the horizontal connecting rod 1 in both the horizontal and vertical directions. After separating the limiting block 9 and the horizontal connecting rod 1, the horizontal connecting rod 1 can be moved to adjust its vertical position. Specifically, the limiting block 9 is connected to the steel pipe pile by bolts or welded to it. The limiting block 9 has a slot that engages with the horizontal connecting rod 1, allowing for easy assembly and disassembly of the horizontal connecting rod 1 and the limiting block 9. Furthermore, bolts are added to the limiting block 9, passing through it and connecting it to the horizontal connecting rod 1, achieving a stable connection between them. Alternatively, the limiting block 9 can be directly welded to the end of the horizontal connecting rod 1 to increase its stability after connection. When the horizontal connecting rod 1 needs to be moved, the welded joint between the limiting block 9 and the horizontal connecting rod 1 is cut off, facilitating the movement of the horizontal connecting rod 1. (Refer to...) Figure 13 Between two adjacent vertically set steel pipe piles 1, two opposing horizontal connecting rods 1 are provided in the vertical direction. The two opposing horizontal connecting rods 1 are welded together by two support columns 6, and the support columns 6 are arranged crosswise.

[0083] A slider 7 and a guide seat 8 are provided between the horizontal connecting rod 1 and the steel pipe pile. The slider 7 is connected to the horizontal connecting rod 1, and the guide seat 8 is connected to the steel pipe pile. The slider 7 is fitted inside the guide seat 8. A steel wire rope 10 is provided on the horizontal connecting rod 1. Specifically, two adjacent steel pipe piles are welded with vertically arranged guide seats 8. The guide seats 8 are provided with guide grooves. Two sliders 7 are welded to both ends of the horizontal connecting rod 1. The sliders 7 are annular. The inner contour of the guide groove is adapted to the sliders 7. The guide groove is annular. The limiting structure is a limiting block 9. The horizontal connecting rod 1 can be accurately moved in the vertical direction of the steel pipe pile through the cooperation of the guide seat 8 and the sliders 7, which facilitates the reset of the horizontal connecting rod 1 after movement. The horizontal connecting rod 1 is provided with a lifting hole, and the steel wire rope 10 is connected in the lifting hole, which facilitates the movement of the entire cross-flow direction connection system.

[0084] The specific steps for using the underwater steel pipe pile structure in this embodiment for flood control are as follows:

[0085] Step 1: Construct a cross-flow connection system;

[0086] The specific steps are as follows:

[0087] 1.1 According to the design drawings, fabricate the corresponding flat connecting rod 1 and weld it to the slider 7 at both ends of the flat connecting rod 1;

[0088] 1.2 Weld intersecting support columns 6 between the two vertical horizontal connecting rods 1;

[0089] 1.3 Weld the guide seat 8 to the steel pipe pile and connect the wire rope 10 to the upper horizontal connecting rod 1.

[0090] Step 2: Install the cross-flow connection system;

[0091] The specific steps are as follows:

[0092] 2.1 Construct the steel pipe piles of guide seat 8 on the mud surface;

[0093] 2.2 Move the entire cross-flow direction connection system between the two steel pipe piles using the lifting mechanism, align the sliders 7 at both ends of the horizontal connecting rod 1 with the guide seats 8 on the steel pipe piles, and move the horizontal connecting rod 1 between the two steel pipe piles.

[0094] 2.3 Connect the four limiting blocks 9 to the steel pipe pile with bolts, and place the horizontal connecting rod 1 on the four limiting blocks 9 to realize the installation of the connection system in the direction of cross-flow. After installation, remove the wire rope 10.

[0095] Step 3: During the flood season, move the cross-current connection system underwater;

[0096] The specific steps are as follows:

[0097] 3.1 When a flood comes, a steel wire rope 10 is threaded onto the horizontal connecting rod 1 of the cross-flow connection system, and the steel wire rope 10 is connected to the lifting device so that the steel wire rope 10 is under tension and taut.

[0098] 3.2 Remove the limiting block 9 from the steel pipe pile;

[0099] 3.3 The cross-flow direction connecting system is gradually lowered to the mud surface along the guide seat 8 using a lifting device.

[0100] Step 4: After the flood season ends, reset the cross-flow connection system.

[0101] The specific steps are as follows:

[0102] 4.1 The cross-flow direction connecting system is gradually lifted to its original position along the guide seat 8 on the steel pipe pile using a lifting device;

[0103] 4.2 Connect the limiting block 9 to the steel pipe pile, use a lifting device to lower the cross-flow direction connecting rope onto the limiting block 9, remove the wire rope 10, and complete the reset operation.

[0104] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A flood control method for steel pipe pile structures in underwater structures, characterized in that, The specific steps are as follows: Step 1: The steel pipe piles are connected by a cross-flow direction connection system to improve the overall horizontal bearing capacity of the steel pipe pile structure. The cross-flow direction connection system is orthogonal or oblique to the flow direction. Step 2: When a flood occurs, the force of the water flow will act on the cross-flow connection system. Adjust the connection between the cross-flow connection system and the steel pipe pile in advance, rotate or move the cross-flow connection system to reduce the water-blocking area of ​​the cross-flow connection system, and reduce the load of the water flow on the cross-flow connection system. Step 3: The horizontal water flow direction connection system includes a horizontal connecting rod (1) and a connecting mechanism. The two ends of the horizontal connecting rod (1) are connected to the steel pipe pile through the connecting mechanism. A support rod (6) is provided between adjacent horizontal connecting rods (1) in the vertical direction. The connecting mechanism includes a fixed clamping plate (2) and a rotating clamping plate (3). The fixed clamping plate (2) is fixedly connected to the horizontal connecting rod (1). The rotating clamping plate (3) is hinged to the horizontal connecting rod (1). The fixed clamping plate (2) and the rotating clamping plate (3) are connected by bolts. After rotating the horizontal water flow direction connection system, flood control piles are driven on the other side of the horizontal water flow direction connection system through the idle rotating clamping plate (3) and the fixed clamping plate (2). The idle side of the horizontal water flow direction connection system is connected to the flood control pile. Step 4: After the flood ends, reset the cross-flow connection system, reconnect the adjacent steel pipe piles, and restore the steel pipe pile structure to normal use.

2. The flood control method for underwater steel pipe pile structures according to claim 1, characterized in that, The specific steps for moving the cross-flow direction connection system in step 2 are as follows: separate one end of the cross-flow direction connection system from the steel pipe pile, rotate the cross-flow direction connection system so that the cross-flow direction connection system is parallel to the water flow direction, and reduce the load of the water flow on the cross-flow direction connection system.

3. The flood control method for underwater steel pipe pile structures according to claim 1, characterized in that, The cross-flow direction connection system is connected to the steel pipe pile through a limiting structure. The specific steps for moving the cross-flow direction connection system in step 2 are as follows: remove the vertical limiting structure on the steel pipe pile, and move the cross-flow direction connection system by hoisting, thereby reducing the load of the water flow on the cross-flow direction connection system.

4. The flood control method for underwater steel pipe pile structures according to claim 3, characterized in that, The limiting structure is detachably connected to the steel pipe pile, and the limiting structure is connected to the cross-flow direction by a snap-fit ​​mechanism.

5. A steel pipe pile structure in water, used for the flood control method of the steel pipe pile structure in water as described in any one of claims 1-4, wherein the fixed clamping plate (2) and the rotating clamping plate (3) are both provided with flange plates (4), the flange plates (4) are provided with through holes for bolts to pass through, and the fixed clamping plate (2) and the rotating clamping plate (3) are both provided with adjustable supports (5).

6. The underwater steel pipe pile structure according to claim 5, characterized in that, The adjustable support (5) includes a threaded rod and a contact block. The threaded rod is threadedly connected to the fixed plate (2) and the rotating plate (3). The end of the threaded rod that extends into the fixed plate (2) and the rotating plate (3) is provided with a contact block.

7. The underwater steel pipe pile structure according to claim 5, characterized in that, The connecting mechanism is a limiting block (9), which is connected to the steel pipe pile and to the horizontal connecting rod (1).

8. The underwater steel pipe pile structure according to claim 7, characterized in that, A slider (7) and a guide seat (8) are provided between the horizontal connecting rod (1) and the steel pipe pile. The slider (7) is connected to the horizontal connecting rod (1), and the guide seat (8) is connected to the steel pipe pile. The slider (7) is sleeved in the guide seat (8), and a steel wire rope (10) is provided on the horizontal connecting rod (1).

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