Civil engineering composite pile structure

Abstract

The invention belongs to the field of composite piles, and provides a civil engineering composite pile structure which comprises two hollow column piles which are symmetrically arranged, a plurality of steel sheet piles are arranged between the two hollow column piles, a connecting sheet pile is arranged between the hollow column piles and the steel sheet piles, and a connecting mechanism is further arranged in the connecting sheet pile. The connecting mechanism is used for connecting a hollow column pile and a steel sheet pile to the outer surface of a connecting sheet pile, the connecting mechanism comprises guide inner grooves, the guide inner grooves are formed in the two sides of the connecting sheet pile, gap baffles are movably arranged in the guide inner grooves, limiting baffles are fixedly installed on the edge portions of one sides of the gap baffles, and fixing inner cavities are symmetrically formed in the middle of the connecting sheet pile; an extrusion structure is further arranged in the fixed inner cavity; through the synergistic effect of the connecting sheet pile, the gap baffle and the extrusion structure, the gap between the hollow column pile and the steel sheet pile can be actively filled, the problem of concrete pouring disconnection is avoided, and the overall connecting strength of the combined pile is improved.

Description

Technical Field

[0001] The invention belongs to the field of composite piles, in particular to a civil engineering composite pile structure. Background Art

[0002] A civil engineering composite pile structure is a composite foundation component formed by combining hollow column piles and steel sheet piles through a specific connection method. The hollow column piles are typically made of reinforced concrete or prestressed concrete, offering excellent vertical load-bearing capacity and moment resistance. The steel sheet piles are typically hot-rolled or cold-formed steel, offering excellent lateral stiffness and water-stopping properties. The combined forces of the two achieve the multiple functions of "vertical load-bearing + lateral support + water-stopping and anti-seepage" through synergistic force.

[0003] During composite pile construction, when inserting hollow column piles and steel sheet piles into the soil, due to factors such as soil disturbance during construction, equipment accuracy limitations, and insufficient dynamic monitoring methods, the connection accuracy between the two is difficult to effectively control, which can easily lead to large gaps between the piles. This problem can lead to disconnection during the subsequent concrete pouring, preventing the concrete from forming a continuous and dense structure at the pile joint, thereby weakening the overall connection between the hollow column pile and the steel sheet pile, and affecting the collaborative working performance of the composite pile in terms of load bearing, support, and water stopping. Summary of the Invention

[0004] In order to solve the above technical problems, the present invention provides a civil engineering composite pile structure to solve the problem in the prior art that there is a certain gap between the hollow column pile and the steel sheet pile during the combined installation.

[0005] A civil engineering composite pile structure comprises two symmetrically arranged hollow column piles, a plurality of steel sheet piles arranged between the two hollow column piles, a connecting sheet pile arranged between the hollow column piles and the steel sheet piles, and a connecting mechanism provided inside the connecting sheet pile for connecting the hollow column pile and the steel sheet pile to the outer surface of the connecting sheet pile;

[0006] The connecting mechanism includes a guide inner groove, which is opened at both sides of the connecting sheet pile. A gap baffle is movably provided inside the guide inner groove, and a limit baffle is fixedly installed on one side of the gap baffle. A fixed inner cavity is symmetrically opened in the middle position of the connecting sheet pile, and an extrusion structure is further provided inside the fixed inner cavity for fixing the gap baffle to the outer surface of the hollow column pile and the steel sheet pile.

[0007] The extrusion structure includes a bidirectional screw rod, which is symmetrically rotatably installed at the upper and lower ends of the inner wall of the fixed inner cavity. The top end of the bidirectional screw rod extends to the top of the connecting sheet pile and a knob is installed. A number of movable parts are symmetrically sleeved on the outer surface of the bidirectional screw rod, and a support assembly is also provided on the outer surface of the movable part.

[0008] Preferably, the support assembly includes an installation groove, which is opened at one side of the movable part. A movable support rod is rotatably installed inside the installation groove through a bearing. A bearing support is hinged at one side of the movable support rod, and a limiting pressure plate is fixedly installed on one side of the bearing support.

[0009] Preferably, both side edges of the steel sheet pile are integrally formed with a No. 1 clamp, a No. 1 clamp groove is provided in the middle of one side of the No. 1 clamp, and the two No. 1 clamps between two adjacent steel sheet piles are staggered and engaged with each other.

[0010] Preferably, a No. 2 clamp is symmetrically fixedly installed on the outer surface of the hollow column pile, and a No. 2 clamp groove is opened in the middle of one side of the No. 2 clamp.

[0011] Preferably, the width of the front and rear ends of the inner walls of the No. 1 and No. 2 card slots is greater than the overall thickness of the gap baffle, one side edge of the gap baffle is located inside the No. 1 and No. 2 card slots, and the No. 1 and No. 2 card slots are both interlocked with the gap baffle.

[0012] Preferably, a threaded hole is provided through the middle of the top of the movable part, and external threads with opposite thread patterns are provided at the upper and lower ends of the outer surface of the bidirectional screw rod respectively. One side of the outer surface of the bidirectional screw rod is located in the threaded hole, and the bidirectional screw rod and the threaded hole are adapted to each other.

[0013] Preferably, one side edge of the movable support rod passes through the fixed inner cavity and extends to the inside of the guide inner groove, and one side of the limiting pressure plate abuts against the outer surface of the limiting baffle.

[0014] Preferably, the cross-sections of the fixed inner cavity and the bidirectional screw rod are both square structures, the cross-sectional area of the bidirectional screw rod is smaller than the cross-sectional area of the fixed inner cavity, and the fixed inner cavity and the bidirectional screw rod are embedded with each other.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The present invention can actively fill the gap between the hollow column pile and the steel sheet pile through the synergistic effect of the connecting sheet pile, the gap baffle and the extrusion structure, thereby avoiding the problem of disconnection during concrete pouring and improving the overall connection strength of the composite pile.

[0017] 2. The present invention utilizes the guiding effect of the guide inner groove on the gap baffle, combined with the adaptive adjustment of the extrusion structure, to effectively offset the influence of soil disturbance, equipment accuracy deviation, etc., reduce the installation deviation between the hollow column pile and the steel sheet pile, and has better installation effect than the traditional process. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2Schematic diagram of the structure of the steel sheet pile in the present invention;

[0020] Figure 3 Schematic diagram of the structure of the connecting sheet pile in the present invention;

[0021] Figure 4 Schematic diagram of the internal structure of the guide inner groove in the present invention;

[0022] Figure 5 Schematic diagram of the structure of the gap baffle in the present invention;

[0023] Figure 6 Schematic diagram of the structure of the limiting pressure plate in the present invention;

[0024] Figure 7 For the present invention Figure 5 A schematic diagram of the partially enlarged structure of the middle part;

[0025] Figure 8 For the present invention Figure 6 Schematic diagram of the locally enlarged structure of B in the middle.

[0026] In the picture:

[0027] 1. Hollow column pile; 2. Steel sheet pile; 3. Connecting sheet pile; 4. Guide inner groove; 5. Gap baffle; 6. Limit baffle; 7. Fixed inner cavity; 8. Bidirectional screw; 9. Movable part; 10. Mounting groove; 11. Movable support rod; 12. Bearing support; 13. Limit pressure plate; 14. Knob; 15. No. 1 clamp; 16. No. 1 clamping slot; 17. No. 2 clamp; 18. No. 2 clamping slot. DETAILED DESCRIPTION

[0028] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention but are not intended to limit the scope of the present invention.

[0029] As attached Figure 1 To the attached Figure 8 As shown:

[0030] Embodiment 1: The present invention provides a civil engineering composite pile structure, comprising two symmetrically arranged hollow column piles 1, a plurality of steel sheet piles 2 arranged between the two hollow column piles 1, a connecting sheet pile 3 arranged at a position between the hollow column piles 1 and the steel sheet piles 2, and a connecting mechanism provided inside the connecting sheet pile 3 for connecting the hollow column pile 1 and the steel sheet pile 2 to the outer surface of the connecting sheet pile 3;

[0031] The connecting mechanism includes a guide inner groove 4, which is opened on both sides of the connecting sheet pile 3. A gap baffle 5 is movably provided inside the guide inner groove 4. A limit baffle 6 is fixedly installed on one side of the gap baffle 5. A fixed inner cavity 7 is symmetrically opened in the middle position of the connecting sheet pile 3. An extrusion structure is also provided inside the fixed inner cavity 7 for fixing the gap baffle 5 to the outer surface of the hollow column pile 1 and the steel sheet pile 2.

[0032] The extrusion structure includes a bidirectional screw rod 8, which is symmetrically mounted at the upper and lower edges of the inner wall of the fixed inner cavity 7. The cross-sections of the fixed inner cavity 7 and the bidirectional screw rod 8 are both square structures. The cross-sectional area of the bidirectional screw rod 8 is smaller than that of the fixed inner cavity 7. The fixed inner cavity 7 and the bidirectional screw rod 8 are interlocked with each other. The top end of the bidirectional screw rod 8 extends to the top of the connecting sheet pile 3 and a knob 14 is installed. A number of movable parts 9 are symmetrically sleeved on the upper and lower outer surfaces of the bidirectional screw rod 8. A threaded hole is provided in the middle of the top of the movable part 9. The upper and lower ends of the outer surface of the bidirectional screw rod 8 are respectively provided with external threads with opposite thread patterns. One side of the outer surface of the bidirectional screw rod 8 is located in the threaded hole. The bidirectional screw rod 8 and the threaded hole are adapted to each other. A support assembly is also provided on the outer surface of the movable part 9.

[0033] As can be seen from the above, during construction, the staff will first lift the connecting sheet pile 3 to the installation position of the hollow column pile 1 and the steel sheet pile 2, so that the guide inner groove 4 is aligned with the No. 2 clamp 17 of the hollow column pile 1 and the No. 1 clamp 15 of the steel sheet pile 2; then, the gap baffle 5 is inserted into the guide inner groove 4, and the limiting effect of the guide inner groove 4 is used to make the gap baffle 5 initially embedded in the No. 2 clamping groove 18 of the hollow column pile 1 and the No. 1 clamping groove 16 of the steel sheet pile 2 (this step can pre-fill part of the gap to prepare for subsequent precise fixation); then, turn the knob 14 to drive the bidirectional screw rod 8 to rotate. Due to the reverse thread design of the bidirectional screw rod 8, the movable part 9 moves synchronously toward the middle or both sides along the screw rod, and pushes the gap baffle 5 to fit tightly against the inner wall of the clamping groove of the hollow column pile 1 and the steel sheet pile 2 through the support assembly to eliminate the gap (during the extrusion process, the fixed inner cavity 7 of the square structure limits the rotation deviation of the bidirectional screw rod 8 to ensure stable transmission of the extrusion force).

[0034] Example 2:

[0035] Reference Figure 4 and Figure 6 The support assembly includes a mounting groove 10, which is opened at one side edge of the movable part 9. A movable support rod 11 is rotatably installed inside the mounting groove 10 through a bearing. A bearing support 12 is hinged on one side edge of the movable support rod 11. A limiting pressure plate 13 is fixedly installed on one side of the bearing support 12. One side edge of the movable support rod 11 passes through the fixed inner cavity 7 and extends to the inside of the guide inner groove 4. One side of the limiting pressure plate 13 abuts against the outer surface of the limiting baffle 6.

[0036] As can be seen from the above, when the movable part 9 moves with the bidirectional screw 8, the movable support rod 11 rotates in the installation groove 10 to adjust the angle, and drives the limit pressure plate 13 through the bearing support 12 to squeeze the limit baffle 6, so that the gap baffle 5 moves toward the outside of the guide inner groove 4 (the rotation characteristics of the movable support rod 11 can adapt to the installation angle deviation of the gap baffle 5 to ensure that the limit pressure plate 13 applies force evenly; the bearing support 12 reduces the friction during the extrusion process to avoid wear of the limit baffle 6), until the gap baffle 5 is completely fitted into the slots of the hollow column pile 1 and the steel sheet pile 2 to achieve rigid fixation.

[0037] Example 3:

[0038] Reference Figure 1 、 Figure 2 and Figure 5 , both sides of the steel sheet pile 2 are integrally formed with a No. 1 clamp 15, and a No. 1 clamping groove 16 is provided in the middle of one side of the No. 1 clamp 15. The two No. 1 clamps 15 between the two adjacent steel sheet piles 2 are staggered and engaged with each other, and a No. 2 clamp 17 is symmetrically fixedly installed on the outer surface of the hollow column pile 1, and a No. 2 clamping groove 18 is provided in the middle of one side of the No. 2 clamp 17. The width of the front and rear ends of the inner wall of the No. 1 clamping groove 16 and the No. 2 clamping groove 18 is greater than the overall thickness of the gap baffle 5. One side edge of the gap baffle 5 is located inside the No. 1 clamping groove 16 and the No. 2 clamping groove 18, and the No. 1 clamping groove 16 and the No. 2 clamping groove 18 are both embedded with the gap baffle 5.

[0039] As can be seen from the above, before installation, the staff first splices the adjacent steel sheet piles 2 into a continuous steel sheet wall through the staggered engagement of the No. 1 clamp 15 and the No. 1 slot 16 (the staggered engagement enhances the integrity and water-stopping performance of the steel sheet pile 2 itself); then, the hollow column pile 1 is hoisted to the designed position, and the interlocking structure of the No. 2 clamp 17 and the No. 2 slot 18 is used to preliminarily position the hollow column pile 1 and the steel sheet pile 2 (the pre-engagement of the slot provides a reference for the installation of the connecting sheet pile 3 and the gap baffle 5, reducing the difficulty of subsequent adjustment); finally, through the connecting mechanism of the connecting sheet pile 3, the gap baffle 5 is embedded in the No. 1 slot 16 and the No. 2 slot 18, thereby realizing the overall fastening of the hollow column pile 1 and the steel sheet pile 2.

[0040] Working principle: First, the No. 1 clamp 15 of the steel sheet pile 2 and the No. 2 clamp 17 of the hollow column pile 1 are used to achieve preliminary interlocking between the pile bodies. Then, the connecting sheet pile 3 is hoisted to the installation position. The guide inner groove 4 provides an installation guide for the gap baffle 5. The gap baffle 5 is initially inserted into the No. 1 clamping groove 16 and the No. 2 clamping groove 18 to complete the pre-positioning.

[0041] Turning the knob 14 drives the bidirectional screw 8 to rotate. Due to the reverse thread design of the bidirectional screw 8, the movable part 9 moves synchronously and squeezes the gap baffle 5 through the supporting assembly (movable support rod 11, bearing support 12, and limit pressure plate 13), so that it fits tightly against the inner wall of the card slot, actively filling and eliminating the gap between the hollow column pile 1 and the steel sheet pile 2;

[0042] By fixing the connecting mechanism and the extrusion structure, the hollow column pile 1, the steel sheet pile 2, and the connecting sheet pile 3 form a rigid connection body, which can collaboratively bear the vertical load and lateral soil pressure during construction, avoid the problem of disconnection during concrete pouring, and improve the load-bearing, support and water-stopping collaborative performance of the combined pile.

[0043] The embodiments of the present invention are provided for the purpose of illustration and description. Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A civil engineering composite pile structure, comprising two symmetrically arranged hollow column piles (1), with a plurality of steel sheet piles (2) arranged between the two hollow column piles (1), characterized in that: A connecting sheet pile (3) is provided at a middle position between the hollow column pile (1) and the steel sheet pile (2), and a connecting mechanism is also provided inside the connecting sheet pile (3) for connecting the hollow column pile (1) and the steel sheet pile (2) to the outer surface of the connecting sheet pile (3); The connecting mechanism comprises a guide inner groove (4), the guide inner groove (4) is provided at both sides of the connecting sheet pile (3), a gap baffle (5) is movably provided inside the guide inner groove (4), a limit baffle (6) is fixedly installed on one side of the gap baffle (5), a fixed inner cavity (7) is symmetrically provided at the middle position of the connecting sheet pile (3), and an extrusion structure is further provided inside the fixed inner cavity (7) for fixing the gap baffle (5) to the outer surface of the hollow column pile (1) and the steel sheet pile (2); The extrusion structure includes a bidirectional screw rod (8), which is symmetrically rotatably mounted at the upper and lower ends of the inner wall of the fixed inner cavity (7). The top end of the bidirectional screw rod (8) extends to the top of the connecting sheet pile (3) and is equipped with a knob (14). The outer surface of the bidirectional screw rod (8) is symmetrically sleeved with a plurality of movable parts (9) in an upper and lower manner, and the outer surface of the movable part (9) is also provided with a support assembly.

2. A civil engineering composite pile structure according to claim 1, characterized in that: The support assembly includes a mounting groove (10), the mounting groove (10) is opened at one side edge of the movable part (9), a movable support rod (11) is rotatably mounted inside the mounting groove (10) via a bearing, a bearing support (12) is hingedly connected to one side edge of the movable support rod (11), and a limiting pressure plate (13) is fixedly mounted on one side of the bearing support (12).

3. The civil engineering composite pile structure according to claim 1, characterized in that: Both side edges of the steel sheet pile (2) are integrally formed with a No. 1 clamping piece (15), a No. 1 clamping slot (16) is provided in the middle of one side of the No. 1 clamping piece (15), and the two No. 1 clamping pieces (15) between two adjacent steel sheet piles (2) are staggered and engaged with each other.

4. A civil engineering composite pile structure according to claim 3, characterized in that: A second clamping piece (17) is symmetrically fixedly mounted on the outer surface of the hollow column pile (1), and a second clamping groove (18) is provided in the middle of one side of the second clamping piece (17).

5. A civil engineering composite pile structure according to claim 4, characterized in that: The widths of the front and rear ends of the inner walls of the No. 1 card slot (16) and the No. 2 card slot (18) are greater than the overall thickness of the gap baffle (5); one side edge of the gap baffle (5) is located inside the No. 1 card slot (16) and the No. 2 card slot (18); and the No. 1 card slot (16) and the No. 2 card slot (18) are both interlocked with the gap baffle (5).

6. The civil engineering composite pile structure according to claim 1, characterized in that: A threaded hole is provided through the middle of the top of the movable part (9), and external threads with opposite thread patterns are provided at the upper and lower ends of the outer surface of the bidirectional screw rod (8). One side of the outer surface of the bidirectional screw rod (8) is located in the threaded hole, and the bidirectional screw rod (8) and the threaded hole are adapted to each other.

7. The civil engineering composite pile structure according to claim 2, characterized in that: One side edge of the movable support rod (11) passes through the fixed inner cavity (7) and extends to the inside of the guide inner groove (4), and one side of the limiting pressure plate (13) abuts against the outer surface of the limiting baffle (6).

8. The civil engineering composite pile structure according to claim 1, characterized in that: The cross sections of the fixed inner cavity (7) and the bidirectional screw rod (8) are both square structures, the cross section area of the bidirectional screw rod (8) is smaller than the cross section area of the fixed inner cavity (7), and the fixed inner cavity (7) and the bidirectional screw rod (8) are interlocked.

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