Reinforcement cage for bridge pile foundation construction and pouring construction method thereof

Abstract

The invention discloses a reinforcement cage for bridge pile foundation construction and a pouring construction method thereof, and relates to the field of bridge pile foundation construction.The reinforcement cage comprises a reinforcement cage body and a plurality of sounding pipes arranged in the reinforcement cage body, the reinforcement cage body comprises a plurality of reinforcing stirrups, and a plurality of main reinforcements are arranged on the surfaces of the reinforcing stirrups; the outer side of the main rib is sleeved with a spiral stirrup from top to bottom. The sound detection pipe and the steel reinforcement cage body are assembled and fixed in multiple welding modes, the structural rigidity of the steel reinforcement cage body is fully guaranteed, deformation in the transportation and hoisting process is avoided, and the sound detection pipe and the steel reinforcement cage body are connected through a plurality of sleeving assemblies which are arranged to serve as connecting structures between the sound detection pipe and the steel reinforcement cage body. According to the sleeving assembly, the sounding pipes and the reinforcement cage body can be conveniently assembled, skid resistance is achieved through large-area locking, and besides, the composite clamping plates in the sleeving assembly can be matched with the corresponding elastic threaded rods and the first positioning nuts in a reciprocating expansion or contraction mode to conduct sleeving limiting on the sounding pipes of different specifications.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of bridge pile foundation construction, in particular to a reinforcing cage for bridge pile foundation construction and a pouring construction method thereof. BACKGROUND

[0002] The bridge pile foundation is a key basic structure supporting the upper structure of the bridge, and its bearing performance directly determines the overall safety and durability of the bridge. As the core load-bearing component of the pile foundation, the reinforcing cage can effectively improve the shear and bending resistance of the pile foundation through collaborative work with the concrete. Therefore, the structural stability and construction quality of the reinforcing cage are particularly important in large projects such as highways and cross-river bridges.

[0003] However, the reinforcing cage currently used in the specific construction process is mostly bound with steel wires between the existing sounding pipes. After being affected by external forces during subsequent transportation and assembly, the sounding pipes are prone to positional deviation. In addition, the reinforcing cage is mostly lifted by hoisting during the embedding process. However, the hoisting structure formed by steel wire binding is prone to shaking and lacks centering effect, which leads to the need for multiple lifting and centering alignment after embedding the reinforcing cage. SUMMARY

[0004] The present application proposes a reinforcing cage for bridge pile foundation construction and a pouring construction method thereof to solve the technical problems raised in the background.

[0005] To achieve the above purpose, the present application adopts the following technical solution: a reinforcing cage for bridge pile foundation construction, comprising a reinforcing cage body, a plurality of sounding pipes arranged in the reinforcing cage body, the reinforcing cage body comprising a plurality of reinforcing hoops, and a plurality of main reinforcement bars arranged on the surface of the reinforcing hoops, a spiral hoop being sleeved on the outer side of the main reinforcement bars from top to bottom, a sleeving assembly being arranged between the reinforcing cage body and the sounding pipes, the sleeving assembly comprising an arc-shaped support plate, an elastic U-shaped clamping plate being sleeved on the corresponding reinforcing hoop on the surface of the arc-shaped support plate, and a fastener being installed between the two ends of the elastic U-shaped clamping plate to clamp and position the reinforcing hoop, a composite clamping plate being sleeved on the corresponding sounding pipe on the inner wall of the arc-shaped support plate, and an elastic threaded rod being sleeved between the composite clamping plate and the arc-shaped support plate, both ends of the elastic threaded rod penetrating out of the surface of the arc-shaped support plate and being threadedly connected with a first positioning nut, and the composite clamping plate being clamped and positioned on the corresponding sounding pipe in a self-tightening manner as the elastic threaded rod and the first positioning nut are screw-locked.

[0006] The multiple set components are set as the connecting structure between the sounding pipe and the reinforcement cage body, compared with the traditional steel wire, the set component can realize convenient assembly of the sounding pipe and the reinforcement cage body and prevent sliding by large area locking, the composite clamp plate in the set component can be set in the reciprocating expansion or contraction mode to cooperate with the corresponding elastic threaded rod and the first positioning nut to set and limit the sounding pipes of different specifications.

[0007] Preferably, the corners of the arc-shaped supporting plate are all set as round corner structures, and after the set component is set in the reinforcement cage body, the surface of the arc-shaped supporting plate is in contact with the surface of the reinforcing hoop.

[0008] Preferably, the number of the elastic U-shaped clamping plates is two, and the two elastic U-shaped clamping plates are respectively arranged on the top surface of the arc-shaped supporting plate and the bottom surface of the arc-shaped supporting plate, and when the elastic U-shaped clamping plate is not locked, the two ends of the elastic U-shaped clamping plate are in a separated state.

[0009] Preferably, the two ends of the elastic U-shaped clamping plate are both set as flat plate structures, and the two flat plate structures are both provided with through holes, the fastener includes a limiting screw and a second positioning nut, one end of the limiting screw can pass through the through holes in the two flat plate structures and is screwed and locked with the second positioning nut, so as to lock and hold the elastic U-shaped clamping plate and the corresponding main reinforcement.

[0010] Preferably, the arc-shaped supporting plate is internally provided with a threaded hole and a through hole capable of being connected with the elastic threaded rod, the composite clamp plate includes a bottom arc panel and two arc-shaped clamping plates in opposite positions, and the bottom arc panel and the two arc-shaped clamping plates are both provided with a folded spring plate, the surfaces of the two arc-shaped clamping plates are both provided with an arc-shaped semi-open guide hole, and the end of the semi-open guide hole is aligned with the corresponding through hole to form an assembly space.

[0011] Preferably, the side edge structure of the bottom arc panel is provided with an assembly hole aligned with the threaded hole, and the bottom arc panel and the arc-shaped supporting plate can be detachably installed and fixed by screwing the assembly hole first and then screwing the threaded hole.

[0012] Preferably, the interiors of the two arc-shaped clamping plates are both provided with a semi-open embedding groove, and the embedding groove is fixedly sleeved with an arc-shaped damping piece, and when the composite clamp plate is in a self-tightening state, the inner wall of the arc-shaped damping piece is in contact with the surface of the corresponding sounding pipe.

[0013] Preferably, the top of each of the main reinforcements is provided with a threaded joint, and the outer side of the threaded joint is connected with a protective cover.

[0014] Preferably, the middle position of the reinforcing hoop is provided with a connecting block, and the surface of the connecting block and the plurality of protective covers are both provided with an elastic rope.

[0015] Preferably, the bridge pile construction steel reinforcement cage pouring construction method comprises the following operation steps. S1, the steel reinforcement cage body is hoisted by four points by a crane, and four sleeve assemblies additionally installed on the top of the steel reinforcement cage body can provide four adapted hoisting points, and manual cooperation is used to help the cage into the hole; S2, during the lowering of the steel reinforcement cage body, a skilled person is required to be present, the top elevation of the protection cylinder is measured on site, and the length of the hoisting reinforcement is accurately calculated to control the top elevation of the steel reinforcement cage body; S3, after the steel reinforcement cage body is lowered into place, the center of the steel reinforcement cage body is adjusted in the opposite direction according to the preset offset of the steel protection cylinder, so that the center of the steel reinforcement cage body coincides with the center of the pile foundation; S4, after the adjustment is completed, the existing section steel is used as a horizontal beam, which crosses the steel reinforcement cage body and suspends the steel reinforcement cage body on the existing steel protection cylinder, and then the existing straight threaded sleeve connected with the threaded joint is used to connect the lower section steel reinforcement cage body; S5, after assembly is completed, concrete is poured into the cylindrical buried hole, ramming machinery is used for compaction, and the steel reinforcement cage body is placed and the interval between pouring concrete should not be greater than four hours.

[0016] As described above, the present application has the following beneficial effects: 1. The steel reinforcement cage body formed by the plurality of reinforcing hoops, the plurality of main reinforcements and the spiral hoops is assembled and fixed by a plurality of welding methods, which fully guarantees the structural rigidity of the steel reinforcement cage body to avoid deformation during transportation and hoisting.

[0017] 2. The plurality of sleeve assemblies are used as the connecting structure between the sounding pipe and the steel reinforcement cage body, and compared with the traditional steel wire, the sleeve assembly can realize convenient assembly of the sounding pipe and the steel reinforcement cage body and large-area locking for anti-skid, and the composite clamping plate in the sleeve assembly can be expanded or contracted in a reciprocating manner to cooperate with the corresponding elastic threaded rod and the first positioning nut to limit the different specifications of the sounding pipe.

[0018] 3. During the combined pouring use of the plurality of sleeve assemblies and the steel reinforcement cage body, the outer convex structure of the plurality of sleeve assemblies can also bear the effect of the protection layer cushion block, so that the thickness of the protection layer between the steel reinforcement cage body and the pile hole wall is uniform, and the long-term use effect of the steel reinforcement cage body is guaranteed. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is a front view schematic diagram of the steel reinforcement cage body of the present application; Figure 2 is a top view schematic diagram of the steel reinforcement cage body of the present application; Figure 3 is a three-dimensional schematic diagram of the sleeve assembly of the present application; Figure 4is a top view schematic diagram of the composite clamp plate of the present application; Figure 5 is a top view schematic diagram of the elastic U-shaped clamp plate of the present application; Figure 6 is a front view schematic diagram of the protective cover of the present application; Figure 7 is a top view schematic diagram of the protective cover of the present application; Figure 8 is a hoisting schematic diagram of the reinforcement cage body of the present application.

[0020] Mark explanation: 1, reinforcing hoop; 2, main reinforcement; 3, spiral hoop; 4, threaded joint; 5, sounding pipe; 6, sleeving assembly; 61, arc support plate; 62, elastic U-shaped clamp plate; 63, composite clamp plate; 631, bottom arc plate; 632, arc clamp plate; 633, folded spring plate; 64, elastic threaded rod; 65, first positioning nut; 7, limiting screw; 8, second positioning nut; 9, connecting block; 10, elastic rope; 11, protective cover; 12, arc-shaped damping piece. Specific implementation

[0021] As Figures 1-6 , the reinforcement cage for bridge pile foundation construction, comprising a reinforcement cage body, a plurality of sounding pipes 5 arranged in the reinforcement cage body, the reinforcement cage body comprising a plurality of reinforcing hoops 1, and the surface of the reinforcing hoop 1 is arranged with a plurality of main reinforcements 2, the outer side of the main reinforcement 2 is sleeved with a spiral hoop 3 from top to bottom, a sleeving assembly 6 is arranged between the reinforcement cage body and the sounding pipe 5, the sleeving assembly 6 comprises an arc-shaped support plate 61, the surface of the arc-shaped support plate 61 is provided with an elastic U-shaped clamp plate 62 sleeved with the corresponding reinforcing hoop 1, and a fastener is installed between the two ends of the elastic U-shaped clamp plate 62 to clamp and position the reinforcing hoop 1, the inner wall of the arc-shaped support plate 61 is provided with a composite clamp plate 63 sleeved with the corresponding sounding pipe 5, and the composite clamp plate 63 and the arc-shaped support plate 61 are sleeved with an elastic threaded rod 64, both ends of the elastic threaded rod 64 are penetrated to the outside of the surface of the arc-shaped support plate 61 and are threadedly connected with the first positioning nut 65, and with the screwing of the elastic threaded rod 64 and the first positioning nut 65, the composite clamp plate 63 can clamp and position the corresponding sounding pipe 5 in a self-tightening manner; The number of elastic U-shaped clamp plates 62 is two and is arranged on the top surface of the arc-shaped support plate 61 and the bottom surface of the arc-shaped support plate 61 respectively, thereby realizing multi-position locking, thereby improving the connection strength between the whole sleeving assembly 6 and the main reinforcement 2, ensuring the stability of the sleeving assembly 6 itself, and when the elastic U-shaped clamp plate 62 is not locked, the two ends thereof are in a separated state, thereby providing favorable conditions for subsequent sleeving operation and separation operation, thereby improving the operation efficiency of actual operation and ensuring the use effect of the whole device; Both ends of the elastic U-shaped clamping plate 62 are provided in a flat plate structure, and a through hole is formed in each of the two flat plate structures, thereby providing sufficient space for subsequent installation. The fastener includes a limiting screw 7 and a second positioning nut 8. One end of the limiting screw 7 can pass through the through holes in the two flat plate structures and be screw-coupled with the second positioning nut 8, so as to clamp and lock the elastic U-shaped clamping plate 62 with the corresponding main reinforcement 2, thereby ensuring stable locking while maintaining the convenience and flexibility of subsequent disassembly. The arc-shaped support plate 61 has a screw hole and a through hole capable of being connected with the elastic threaded rod 64 in the inside. The composite clamping plate 63 includes a bottom arc plate 631 and two arc-shaped clamping plates 632 in opposite positions, and a folded spring plate 633 is installed between the bottom arc plate 631 and each of the two arc-shaped clamping plates 632. An arc-shaped semi-open guide hole is formed in the surface of each of the two arc-shaped clamping plates 632, and the end of the semi-open guide hole is aligned with the corresponding through hole to form an assembly space. The elastic threaded rod 64 can be flexibly and circularly sleeved with the arc-shaped support plate 61 and the composite clamping plate 63 by using the assembly space, thereby satisfying the subsequent contraction and locking effect.

[0022] In use, for the assembly between the sleeving assembly 6 and the reinforcement cage body, the sleeving assembly 6 is sleeved in the reinforcement cage body, then the two elastic U-shaped clamping plates 62 in the expanded state in the inside of the sleeving assembly 6 are sleeved with the corresponding main reinforcement 2. After completion, the limiting screw 7 passes through the through holes formed in the two ends of one of the elastic U-shaped clamping plates 62 and is screw-coupled with the second positioning nut 8, so as to clamp and limit the main reinforcement 2 by the elastic U-shaped clamping plate 62. Similarly, the other elastic U-shaped clamping plate 62 is also assembled by using the above steps, thereby realizing the stable assembly of the sleeving assembly 6 in the reinforcement cage body. For the assembly of the sounding pipe 5 in the reinforcement cage body, one end of the sounding pipe 5 is passed through the composite clamping plate 63 in the non-pressurized state and is moved along the arc-shaped support plate 61. After the position is appropriate, one end of the elastic threaded rod 64 is passed through the corresponding two through holes in the arc-shaped support plate 61 and the corresponding semi-open guide holes in the composite clamping plate 63 and is U-shapedly bent and adjusted, until the two ends of the elastic threaded rod 64 extend to the outside of the surface of the arc-shaped support plate 61. The first positioning nut 65 on the two ends of the elastic threaded rod 64 is screwed, and then the composite clamping plate 63 is tightened and adjusted by the elastic threaded rod 64, so as to clamp and position the sounding pipe 5, thereby ensuring the stability of the sounding pipe 5 in the reinforcement cage body. The remaining sounding pipes 5 are assembled according to the above steps, and the composite clamping plate 63 can be adaptively clamped and assembled for different diameter specifications of the sounding pipes 5 in the further use process.

[0023] As Figures 1-6, the corners of the arc-shaped supporting plate 61 are provided with rounded corner structures, thereby avoiding scratches during subsequent assembly and use, improving the comfort of use, and ensuring the strength of the connection after the assembly 6 is sleeved in the reinforcement cage body.

[0024] During use, considering the reciprocating installation or disassembly characteristics of the assembly 6, the corners of the arc-shaped supporting plate 61 are provided with rounded corner structures to avoid scratching the reinforcement cage body or the operator during installation or disassembly, thereby improving the comfort and safety of use.

[0025] As Figures 1-6 , the side structure of the bottom arc panel 631 is provided with an assembly hole aligned with the screw hole, and the bottom arc panel 631 and the arc-shaped supporting plate 61 can be detachably installed and fixed by screwing the assembly hole first and then the screw hole. This not only optimizes the convenience of assembly operation, but also provides conditions for subsequent modular replacement and maintenance of the composite clamp 63, and the relative independence of the composite clamp 63 and the arc-shaped supporting plate 61 in structure also enables the arc-shaped supporting plate 61 and the composite clamp 63 to be recycled and reused purposefully during subsequent continuous use, thereby reducing the overall device use cost.

[0026] During use, for the expansion use of multiple assemblies 6, multiple composite clamps 63 equally spaced along the top of the reinforcement cage body can be used as a hoisting structure to meet the subsequent stable and centered hoisting. When the composite clamp 63 is damaged, the composite clamp 63 can be replaced as a whole by using the screw between the bottom arc panel 631 and the arc-shaped supporting plate 61, thereby enabling the arc-shaped supporting plate 61 and the composite clamp 63 to be recycled and reused purposefully during subsequent continuous use, thereby reducing the overall device use cost.

[0027] As Figures 1-6 , the inside of the two arc-shaped clamps 632 is provided with a semi-open embedded groove, and the embedded groove is fixedly sleeved with an arc-shaped damping piece 12. When the composite clamp 63 is in a self-tightening state, the inner wall of the arc-shaped damping piece 12 is in contact with the surface of the corresponding sounding pipe 5.

[0028] During use, considering the vibration problem during subsequent hoisting, the arc-shaped damping piece 12 provided in the composite clamp 63 can be used in conjunction with the folding spring plate 633 to dampen and buffer when vibration occurs, further improving the stability of the sounding pipe 5 inside the reinforcement cage body.

[0029] As Figures 6-7The top of each main rib 2 is provided with a threaded joint 4, the outer side of the threaded joint 4 is clamped with a protective cover 11, a connecting block 9 is arranged at the middle position of the reinforcing hoop 1, and the surface of the connecting block 9 and the plurality of protective covers 11 are both mounted with elastic ropes 10.

[0030] In use, considering that a single protective cover 11 is fitted on a specified threaded joint 4, and the problem of falling off during transportation, a plurality of elastic ropes 10 and connecting blocks 9 form a composite linkage structure, which can protect the threaded joint 4 from being damaged or contaminated during transportation or movement of the steel bar, and when a single protective cover 11 is subjected to external pressure, it can be shared with other protective covers 11 through the elastic ropes 10, and during subsequent disassembly, the connecting block 9 and the plurality of elastic ropes 10 can be used to centrally disassemble and recycle the plurality of protective covers 11, providing favorable conditions for subsequent continuous use and reducing use costs.

[0031] As Figures 1-8 The pouring construction method of the steel reinforcement cage body for bridge pile foundation construction comprises the following operation steps: S1, material preparation and production of the steel reinforcement cage body; The steel reinforcement raw materials of the reinforcing hoop 1, the main rib 2 and the spiral hoop 3 are classified and stacked in the corresponding separate warehouses in the steel factory, and a sign is arranged. The steel reinforcement raw materials must be covered with a mat and cannot be stored outdoors. In addition, concrete piers or square wood are arranged at the bottom of the steel reinforcement raw materials to isolate them from the ground, and rainproof covering materials such as colored cloth are prepared; Before processing the steel reinforcement raw materials of the reinforcing hoop 1, the main rib 2 and the spiral hoop 3, the stains on the surface of the steel reinforcement raw materials, such as paint, scale, attached soil and oil stains, are removed to keep the surface clean. If the steel reinforcement raw materials are bent, they should be straightened before processing; The threaded joint 4 at the end of the main rib 2 is processed. The corresponding main rib 2 should be straightened before processing. The cut end surface should be perpendicular to the axis of the main rib 2. If the end is bent or horseshoe-shaped, it needs to be cut off. During cutting, a bench grinder is used for cutting, and gas cutting is strictly prohibited; Adjust the test bar according to the required specifications of the steel bar, adjust the minimum size of the inner hole of the thread rolling head, replace the expanding ring according to the specifications of the steel bar, adjust the rib stripping diameter size according to the specified thread processing size, adjust the rib stripping block and rolling travel switch position to ensure that the rib stripping and rolling thread length meets the specified thread processing size. After the threaded joint 4 is processed and inspected, the threaded joint 4 is protected with a protective cover 11 to prevent the thread from being damaged or contaminated during the movement or transportation of the steel bar; The steel cage body formed by the reinforcing stirrup 1, the main reinforcement 2 and the spiral stirrup 3 is made by a rolling cage machine, and further, the reinforcing stirrup 1 and the main reinforcement 2 are lap welded, the spiral stirrup 3 and the main reinforcement 2 are point welded in a plum blossom shape, and further, the binding sequence of the framework is that the reinforcing stirrup 1 is arranged first, then the main reinforcement 2 is placed symmetrically one by one according to the line, the main reinforcement 2 and the reinforcing stirrup 1 are welded, and finally the spiral stirrup 3 is point welded, and during welding, the main reinforcement 2 should not be burned, the slag should be cleaned in time during the welding process, the welding surface should be smooth, the welding excess height should be smoothly transitioned, the crater should be filled, and the formed steel cage body should be placed horizontally on the sleeper, and the stacking layers should not exceed two layers; Further, during the manufacturing, the reinforcing stirrup 1 should be straight, the spacing between the adjacent two main reinforcements 2 should be accurate and uniform, and the overall framework size should be accurate. The corresponding steel reinforcement raw material grade, diameter, number and spacing should meet the design requirements. During the manufacturing of the steel cage body, four steel cage body protection layer blocks can be arranged in a plum blossom shape at intervals of two meters; For convenient detection, a plurality of sounding pipes 5 are uniformly distributed in the steel cage body and are conveniently assembled with the steel cage body through a plurality of sleeve assemblies 6. Specifically, one end of the sounding pipe 5 penetrates the composite clamp plate 63 in a non-pressure state and moves along the arc-shaped support plate 61 for adjustment. After the position is appropriate, the first positioning nut 65 on the two ends of the elastic threaded rod 64 is screwed, and then the composite clamp plate 63 is adjusted by the elastic threaded rod 64. Finally, the composite clamp plate 63 is tightened to clamp and position the sounding pipe 5, so as to ensure the stability of the sounding pipe 5 in the steel cage body. The remaining sounding pipes 5 are assembled according to the above steps. Further, the bottom of the sounding pipe 5 is closed, the extension joint of the sounding pipe 5 is connected by using the existing socket hydraulic tool, and clean water is injected into the sounding pipe 5 before the steel cage body is placed in place and the concrete is poured. After filling, the pipe opening is closed with a matching cover or adhesive tape to prevent soil and debris from entering the pipe.

[0032] S2, steel cage body transportation The steel cage body is manufactured according to the principle that the segmented length is less than or equal to 12m, and is transported by a semi-trailer; S3, for the steel cage body transported to the designated position, four-point lifting is adopted during the further lifting process by using a crane device, and four sleeve assemblies 6 additionally installed on the top of the steel cage body can provide four adaptive lifting points, and manual assistance is provided for supporting the cage into the hole; S4, during the process of lowering the steel cage body, a technician is required to be present, the top elevation of the protection cylinder is measured on site, and the length of the lifting reinforcement is accurately calculated to control the top elevation of the steel cage body; S5, after the steel cage body is placed in place, the center of the steel cage body is adjusted in the opposite direction according to the preset offset of the steel protection cylinder, so that the center of the steel cage body coincides with the center of the pile foundation. S6, after the adjustment is completed, the existing section steel is used as a flat beam, crosses the reinforcement cage body and suspends the reinforcement cage body on the existing steel casing, and then the lower section reinforcement cage body is connected by using the existing straight thread sleeve which can cooperate with the threaded joint 4; Further, when the corresponding sleeve joint is installed on the threaded joint 4, it can be tightened by using a pipe wrench, the steel wire heads should be tightly pressed at the central position of the sleeve joint, and the exposed single-side thread after the installation of the sleeve joint should not be more than 2p; for other straight thread joints that cannot be pressed, additional locking nuts, pressing bosses and other measures should be taken to fasten; S7, after the assembly is completed, the concrete is poured into the cylindrical embedding hole, the tamping machine is used for tamping, and the interval between the placement of the reinforcement cage body and the pouring of the concrete should not be greater than four hours.

Claims

1. A reinforcement cage for bridge pile construction, comprising a reinforcement cage body, a plurality of sounding pipes (5) arranged in the reinforcement cage body, the reinforcement cage body comprising a plurality of reinforcing hoops (1), and the surface of the reinforcing hoops (1) is arranged with a plurality of main reinforcement bars (2), and the outer side of the main reinforcement bars (2) is sleeved with spiral hoops (3) from top to bottom, characterized in that: The reinforcing cage body and the sounding pipe (5) are provided with a sleeving assembly (6), the sleeving assembly (6) comprises an arc-shaped supporting plate (61), the surface of the arc-shaped supporting plate (61) is provided with an elastic U-shaped clamping plate (62) sleeved with a corresponding reinforcing hoop (1), and the two end heads of the elastic U-shaped clamping plate (62) are provided with a fastener, so that the elastic U-shaped clamping plate (62) clamps and positions the reinforcing hoop (1); the inner wall of the arc-shaped supporting plate (61) is provided with a composite clamping plate (63) sleeved with a corresponding sounding pipe (5), and the composite clamping plate (63) and the arc-shaped supporting plate (61) are sleeved with an elastic threaded rod (64); the two ends of the elastic threaded rod (64) are both penetrated to the surface outside the arc-shaped supporting plate (61) and are both threadedly connected with a first positioning nut (65), and with the screwing of the elastic threaded rod (64) and the first positioning nut (65), the composite clamping plate (63) can clamp and position the corresponding sounding pipe (5) in a self-tightening manner.

2. Reinforcement cage for bridge pile construction according to claim 1, characterized in that: The corners of the arc-shaped supporting plate (61) are all provided in a round corner structure, and after the sleeving assembly (6) is sleeved in the reinforcing cage body, the surface of the arc-shaped supporting plate (61) is in contact with the surface of the reinforcing hoop (1).

3. The reinforcement cage for bridge pile construction according to claim 1, characterized in that: The elastic U-shaped clamping plate (62) is provided in two numbers and is arranged on the top surface of the arc-shaped supporting plate (61) and the bottom surface of the arc-shaped supporting plate (61) respectively, and when the elastic U-shaped clamping plate (62) is not locked, the two ends thereof are in a separated state.

4. The reinforcement cage for bridge pile construction according to claim 1, characterized in that: The two end heads of the elastic U-shaped clamping plate (62) are both provided in a flat plate structure, and the two flat plate structures are both provided with a penetrating hole, and the fastener comprises a limiting screw (7) and a second positioning nut (8); one end of the limiting screw (7) can pass through the penetrating holes in the two flat plate structures and is threadedly locked with the second positioning nut (8) in a manner that the elastic U-shaped clamping plate (62) is clamped and locked with the corresponding main reinforcement (2).

5. The reinforcement cage for bridge pile construction according to claim 1, characterized in that: The arc-shaped supporting plate (61) is provided with a threaded hole and a through hole capable of being clamped with the elastic threaded rod (64) in the inside thereof, and the composite clamping plate (63) comprises a bottom arc surface plate (631) and two arc-shaped clamping plates (632) in an opposite position; the bottom arc surface plate (631) and the two arc-shaped clamping plates (632) are both provided with a folded spring plate (633) between each other; the surfaces of the two arc-shaped clamping plates (632) are both provided with an arc-shaped semi-open guide hole, and the end head of the semi-open guide hole is aligned with the corresponding through hole and forms an assembling space.

6. A reinforcement cage for bridge pile construction according to claim 5, characterised in that: The side edge structure of the bottom arc surface plate (631) is provided with an assembling hole aligned with the threaded hole, and the bottom arc surface plate (631) and the arc-shaped supporting plate (61) can be detachably installed and fixed.

7. The reinforcement cage for bridge pile construction according to claim 5, characterized in that: The inside of the two arc-shaped clamping plates (632) is both provided with a semi-open embedding groove, and the embedding groove is fixedly sleeved with an arc-shaped damping piece (12); when the composite clamping plate (63) is in a self-tightening state, the inner wall of the arc-shaped damping piece (12) is in contact with the surface of the corresponding sounding pipe (5).

8. The reinforcement cage for bridge pile construction according to claim 1, characterized in that: The top of each of the main reinforcements (2) is provided with a threaded joint (4), and the outer side of the threaded joint (4) is clamped with a protective cover (11).

9. A reinforcement cage for bridge pile construction according to claim 8, characterised in that: The reinforcing hoop (1) is provided with a connecting block (9) at the middle position, and elastic ropes (10) are installed between the surface of the connecting block (9) and a plurality of protective covers (11).

10. A method of casting a reinforcement cage for a bridge pile foundation construction according to claim 1, characterized in that, The method comprises the following steps: S1, the steel cage is lifted by four points by using a crane, and four sleeve assemblies (6) additionally installed on the top of the steel cage can provide four adaptive lifting points, and manual assistance is provided for supporting the steel cage into the hole; S2, during the process of lowering the steel cage, a skilled person is required to be present, the top elevation of the protection cylinder is measured on site, the length of the lifting steel is accurately calculated to control the top elevation of the steel cage; S3, after the steel cage is lowered into place, the center of the steel cage is adjusted in the opposite direction according to the preset offset of the steel protection cylinder, so that the center of the steel cage body coincides with the center of the pile foundation; S4, after the adjustment is completed, the existing profile steel is used as a horizontal beam to cross the steel cage and suspend the steel cage on the existing steel protection cylinder, and then the existing straight threaded sleeve connected with the threaded joint (4) is used to connect the lower section of the steel cage; S5, after the assembly is completed, the concrete is poured into the cylindrical embedding hole, the tamping machine is used for tamping, and the interval between the completion of the placement of the steel cage and the pouring of the concrete should not be greater than four hours.

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