Fabricated multi-tubular-pile-cap foundation and process for power transmission tower and frame column

Abstract

The invention discloses an assembly type multi-pipe pile-bearing platform foundation and technology for a power transmission tower and a frame column, and relates to the technical field of assembly type foundations. An adjusting square hole is formed in the lower portion of each reserved square hole, the width of each adjusting square hole is larger than that of each reserved square hole, and square steel pipes are embedded in the reserved square holes; a plurality of embedded steel bars II are embedded in the pile body and extend out of the pile body, an embedded part is arranged at the upper end of the pile body, a rubber gasket is arranged at the upper end of the embedded part, the embedded part and the rubber gasket extend into the square steel pipe, the length L2 of the embedded steel bars II extending out of the pile body is larger than the thickness L1 of the bearing platform, and the upper ends of the embedded steel bars II extend out of the upper end face of the bearing platform; the second embedded steel bars penetrate through the third connecting holes of the pressure bearing plate and are fixed to the pressure bearing plate through second nuts. The rubber gaskets are additionally arranged between the bearing platform and the pipe piles, errors generated after the pipe piles are driven into a foundation are neutralized, the upper end face of each pipe pile makes contact with the lower end face of the bearing platform, and stress balance is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of assembled foundations, and in particular to an assembled multi-tube pile-cap foundation and a construction process for transmission towers and frame columns. Background Art

[0002] Concrete foundations are gradually becoming difficult to adapt to the current development of power transmission line construction due to their long construction period, high labor costs, and dependence on geological conditions. In construction projects, multi-tube piles, as a commonly used foundation treatment method, can effectively increase the bearing capacity of the foundation. However, the traditional multi-tube pile-cap foundation has problems such as long construction period, complex construction, and high cost during the construction process. In addition, the existing multi-tube pile-cap foundation structure also has room for improvement in bearing capacity and construction efficiency.

[0003] The application of prefabricated foundations in emergency projects has significant advantages, especially in situations that require rapid response and construction, such as temporary shelters and medical facilities after natural disasters. Prefabricated foundations can significantly shorten construction periods and reduce labor costs while ensuring the quality and safety of buildings. However, the existing pipe pile + pedestal foundation adopts two methods: method one: prefabricated pipe piles are used in the lower part, and cast-in-place pedestals and main columns are used in the upper part. This foundation type cannot solve the problem of rapid foundation construction; method two: prefabricated pipe piles are used in the lower part, steel plates are embedded on the top of the pipe piles, and prefabricated components are used for the pedestals. Steel plates are set under the pedestals. The construction site needs to complete the welding of the pedestal steel plate and the pipe pile steel plate. The foundation is difficult to construct and has quality defects (it cannot be guaranteed that the tops of multiple pipe piles are on the same plane during construction). Summary of the invention

[0004] In order to solve the problem of difficult construction of the current pipe pile + upper cap foundation, the present invention proposes an assembled multi-pipe pile-cap foundation for transmission towers and frame columns.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions: A prefabricated multi-pipe pile-cap foundation for a transmission tower and a frame column, comprising an upper foundation and pipe piles, the upper foundation comprising a cap and a main column, the main column being arranged above the cap, a reserved square hole being arranged on the cap, an adjustment square hole being arranged at the lower part of each reserved square hole, the width of the adjustment square hole being greater than the width of the reserved square hole, a square steel pipe being buried in the reserved square hole, the pipe pile comprising a pile body, a boss being arranged at the upper part of the pile body, a plurality of embedded steel bars 2 being embedded in the pile body, the embedded steel bars 2 extending out of the pile body, an embedded portion being arranged at the upper end of the embedded portion, a rubber gasket being arranged, the embedded portion and the rubber gasket extending into the square steel pipe, a length L2 of the embedded steel bars 2 extending out of the pile body being greater than a thickness L1 of the cap, the upper end of the embedded steel bars 2 extending out of the upper end surface of the cap, the embedded steel bars 2 passing through a connection hole 3 of a pressure plate, and being fixed to the pressure plate by a nut 2.

[0006] Furthermore, the maximum diameter of the boss is greater than the width of the reserved square hole.

[0007] Furthermore, the pressure plate includes a plate body 1, a connecting column is arranged at the center of the upper end surface of the plate body 1, a plurality of connecting holes 3 are distributed on the plate body 1, and a connecting hole 4 is arranged at the center of the upper end surface of the connecting column.

[0008] Furthermore, a plurality of reinforcing ribs are provided between the pressure plate and the connecting column.

[0009] Furthermore, the square steel tube includes a tube body, and a plurality of connecting holes are arranged on the side of the tube body.

[0010] Furthermore, the depth L3 of the adjustment square hole is greater than the thickness L4 of the embedding part, the diameters of the embedding part and the rubber gasket are greater than the width of the reserved square hole, and the diameters of the embedding part and the rubber gasket are smaller than the width of the adjustment square hole.

[0011] Furthermore, the end of the embedded steel bar 1 extends into the tube body of the square steel pipe through the connecting hole 1, the end of the embedded steel bar 1 is provided with an external thread, the embedded steel bar 1 is connected to the nut 1 through the external thread, and the embedded steel bar 1 is fastened between the two square steel pipes through the nuts 1 at both ends.

[0012] Furthermore, a plurality of threaded holes are arranged in the reserved square hole of the base, and the threaded holes are arranged concentrically with the connecting holes on the square steel pipe, and the diameters of the threaded holes and the connecting hole 1 are equal.

[0013] Furthermore, a screw or a bolt is threadedly installed in the threaded hole.

[0014] Furthermore, one end of the screw is screwed into the threaded hole, and the other end of the screw is equipped with a nut three.

[0015] Furthermore, a plurality of anchor bolts are pre-buried at the upper end of the main column.

[0016] Furthermore, the pipe pile is driven into the foundation through a pile driving head.

[0017] Furthermore, the pile striking head comprises a main body, a plurality of connecting holes 2 are arranged on the main body, and the thickness of the main body is greater than the length of the embedded steel bars 2 extending out of the pile body.

[0018] Beneficial effects: (1) The pipe pile adopts exposed anchor bars, and the anchor bars pass through the cap, which can reduce the thickness of the cap (the thickness of the cap is controlled by the anchor length of the steel bar. After adopting the anchor bar + pressure plate method, the thickness of the cap can be reduced by more than 50%), reducing the amount of materials.

[0019] (2) Square steel pipes are built into the cap, and the disconnected steel bars are connected to the square steel pipes respectively, which solves the problem of connecting the bearing steel bars of the cap. The reasons are as follows: On the one hand, the diameter of the pipe pile is generally more than 300mm. In order to ensure that the anchor bar passes through the cap, the reserved hole of the cap must be larger than 300mm minus the thickness of the steel bar protective layer; on the other hand, the spacing between the bearing steel bars of the cap cannot be greater than 200mm.

[0020] (3) The present invention neutralizes the error caused by the pipe piles being driven into the foundation by installing a rubber gasket between the cap and the pipe piles, so that when the cap is installed, the upper end surface of each pipe pile is in contact with the lower end surface of the cap, thereby ensuring balanced force.

[0021] (4) This technical solution solves the problem that the current pipe pile + pedestal foundation cannot use prefabricated pedestals or is difficult to weld on the construction site. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a schematic diagram of the three-dimensional structure of the first embodiment of the present invention; Figure 2 is a schematic diagram of the main structure of the first embodiment of the present invention; Figure 3 is a schematic diagram of a top view of the structure of the first embodiment of the present invention; Figure 4 It is a schematic diagram of the three-dimensional structure of the upper foundation of the first embodiment of the present invention; Figure 5 The present invention Figure 4 A schematic diagram of a top view structure; Figure 6 The present invention Figure 4 Schematic diagram of the main structure; Figure 7 It is a schematic diagram of the three-dimensional structure of the pipe pile in the present invention; Figure 8 The present invention Figure 7 Schematic diagram of the main structure; Fig. 9 It is a structural schematic diagram of the pressure-bearing plate in the present invention; Fig.10 It is a structural schematic diagram of a square steel tube in the present invention; Fig.11 It is a structural schematic diagram of the pile impact head in the present invention; Fig.12 This is a schematic diagram of the main structure of the connection between the square steel pipe and the embedded steel bar in the present invention; Fig.13 It is a top view structural schematic diagram of the connection between the square steel pipe and the embedded steel bar in the present invention; Fig.14 is a schematic diagram of the three-dimensional structure of the second embodiment of the present invention; Fig.15 The present invention Fig.14 The three-dimensional image after the connecting plate is removed; Fig.16 is a three-dimensional diagram of a pipe pile in the second embodiment of the present invention; Fig.17 It is a front view of the pipe pile in the second embodiment of the present invention.

[0023] Figure numerals: 1. Upper foundation; 101. Capping platform; 102. Main column; 103. Reserved square hole; 104. Anchor bolt; 105. Embedded steel bar one; 106. Nut one; 107. Adjustment square hole; 2. Pipe pile; 201. Pile body; 202. Boss; 203. Embedded part; 204. Rubber washer; 205. Embedded steel bar two; 206. Threaded section; 3. Pressure plate; 301. Plate body one; 302. Connecting column; 303. Connecting hole three; 304. Connecting hole four; 4. Square steel pipe; 401. Pipe body; 402. Connecting hole one; 5. Pile hitting head; 501. Main body; 502. Connecting hole two; 6. Connecting plate. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0025] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0026] Example 1: Reference Figure 1-8A prefabricated multi-tube pile-cap foundation for a transmission tower and a frame column, comprising an upper foundation 1 and a pipe pile 2, wherein the upper foundation 1 comprises a cap 101 and a main column 102, wherein the main column 102 is arranged above the cap 101, wherein the cap 101 is provided with a reserved square hole 103, wherein each reserved square hole 103 is provided with an adjustment square hole 107 at the lower part, wherein the width of the adjustment square hole 107 is greater than the width of the reserved square hole 103, wherein a square steel pipe 4 is buried in the reserved square hole 103, wherein the pipe pile 2 comprises a pile body 201, wherein a boss 202 is arranged at the upper part of the pile body 201, wherein the pile A plurality of embedded steel bars 205 are embedded in the pile body 201, and the embedded steel bars 205 extend out of the pile body 201. An embedded portion 203 is provided at the upper end of the pile body 201, and a rubber gasket 204 is provided at the upper end of the embedded portion 203. The embedded portion 203 and the rubber gasket 204 extend into the interior of the square steel tube 4. The length L2 of the embedded steel bars 205 extending out of the pile body 201 is greater than the thickness L1 of the cap 101. The upper end of the embedded steel bars 205 extends out of the upper end surface of the cap 101. The embedded steel bars 205 pass through the connection holes 303 of the pressure plate 3 and are fixed to the pressure plate 3 by nuts 2. The maximum diameter of the boss 202 is greater than the width of the reserved square hole 103. The depth L3 of the adjustment square hole 107 is greater than the thickness L4 of the embedding portion 203. The diameters of the embedding portion 203 and the rubber gasket 204 are greater than the width of the reserved square hole 103. The diameters of the embedding portion 203 and the rubber gasket 204 are smaller than the width of the adjustment square hole 107. A plurality of anchor bolts 104 are pre-buried at the upper end of the main column 102.

[0027] Reference Fig. 9 The pressure plate 3 includes a plate body 1 301, a connecting column 302 is arranged at the center of the upper end surface of the plate body 1 301, a plurality of connecting holes 303 are distributed on the plate body 1 301, and a connecting hole 4 304 is arranged at the center of the upper end surface of the connecting column 302. A plurality of reinforcing ribs are arranged between the pressure plate 3 and the connecting column 302.

[0028] Reference Fig.10 The square steel tube 4 includes a tube body 401 , and a plurality of connecting holes 402 are arranged on the side of the tube body 401 .

[0029] This application provides an embodiment, referring to Figure 12-13 The end of the embedded steel bar 105 passes through the connecting hole 402 and extends into the tube body 401 of the square steel tube 4. The end of the embedded steel bar 105 is provided with an external thread. The embedded steel bar 105 is connected to the nut 106 through the external thread. The embedded steel bar 105 is fastened between the two square steel tubes 4 through the nuts 106 at both ends.

[0030] The present application provides another embodiment, wherein a plurality of threaded holes are arranged in the reserved square hole 103 of the support 101, and the threaded holes are arranged concentrically with the connecting hole 1 402 on the square steel pipe 4, and the diameters of the threaded holes and the connecting hole 1 402 are equal. A screw or bolt is installed in the threaded hole through a thread. One end of the screw is screwed into the threaded hole, and a nut 3 is installed at the other end of the screw.

[0031] Reference Fig.11 The pipe pile 2 is driven into the foundation through a pile head 5. The pile head 5 includes a body 501, on which a plurality of connecting holes 502 are arranged. The thickness of the body 501 is greater than the length of the embedded steel bars 205 extending out of the pile body 201.

[0032] A prefabricated multi-pipe pile-cap foundation construction process for transmission towers and frame columns, comprising the following steps: firstly driving a pipe pile 2 into the foundation for positioning, and installing a pile hammer 5 at the pile top during hammering; then installing a cap 101 of an upper foundation 1 at a position corresponding to the pipe pile 2, reserving a square hole 103 in the cap 101, placing a square steel pipe 4 in the reserved square hole 103, and during the prefabrication of the steel cage of the cap 101, opening a connecting hole 402 on the square steel pipe 4, setting an external thread at the end of a pre-embedded steel bar 105, passing the pre-embedded steel bar 105 through the square steel pipe 4, and screwing a screw on the inside of the square steel pipe 4. The cap is fixed. When the cap 101 is installed, the boss 202 on the pipe pile 2 abuts against the lower end surface of the cap 101, the embedded part 203 and the rubber gasket 204 on the pipe pile 2 extend into the adjustment square hole 107, the embedded part 203 and the rubber gasket 204 abut against the lower end surface of the reserved square hole 103, and then mortar is poured into the square steel pipe 4. After the mortar solidifies, the embedded steel bar 205 extending out of the cap 101 is finally passed through the connecting hole 303 of the pressure plate 3. The end of the embedded steel bar 205 is provided with an external thread, and a nut is installed on the embedded steel bar 205, so that the pressure plate 3 is pressed on the cap 101.

[0033] Embed the embedded steel bar 205 in the pipe pile 2, the embedded steel bar 2 extends out of the pipe pile 2 and is anchored to the top of the upper pedestal 101. The upper part of the threaded pipe pile 2 is expanded to improve the bearing capacity, and a rubber gasket 204 is placed on the part of the pipe pile 2 top embedded in the pedestal 101 for leveling.

[0034] Example 2: Reference Figure 14-17A prefabricated multi-pipe pile-cap foundation for a transmission tower or a frame column, comprising an upper foundation 1 and a pipe pile 2, wherein the upper foundation 1 comprises a cap 101 and a main column 102, wherein the main column 102 is arranged above the cap 101, wherein the cap 101 is provided with a reserved square hole 103, wherein each reserved square hole 103 is provided with an adjustment square hole 107 at the lower part thereof, wherein the width of the adjustment square hole 107 is greater than the width of the reserved square hole 103, wherein the pipe pile 2 comprises a pile body 2 01, a boss 202 is provided on the upper part of the pile body 201, the embedded steel bar 205 extends out of the pile body 201, an embedded portion 203 is provided on the upper end of the pile body 201, a rubber gasket 204 is provided on the upper end of the embedded portion 203, the embedded portion 203 and the rubber gasket 204 extend into the reserved square hole, when this embodiment is implemented, the inner width of the reserved square hole 103 is less than 200mm, and the spacing of the reinforcement of the pedestal cannot be greater than 200mm according to the requirements, so at this time, one end of the embedded steel bar in the pedestal does not need to be connected together, a embedded steel bar 205 is embedded in the pile body 201, a threaded section 206 is provided on the upper end of the embedded steel bar 205, the embedded steel bar 205 is connected to the connecting plate 6 through the threaded section 206 at the upper end, the size of the connecting plate 6 is larger than the size of the reserved square hole 103, a center hole is provided in the center of the connecting plate 6, when the center hole is a light hole, a nut is installed on the threaded section 206, the nut The connecting plate 6 is tightly pressed on the cap 101; when the center hole is a threaded hole, the threaded hole is connected to the threaded section 206 through a thread, and the connecting plate 6 is pressed on the cap 101; the length L2 of the embedded steel bar 205 extending from the pile body 201 is greater than the thickness L1 of the cap 101, the upper end of the embedded steel bar 205 extends out of the upper end surface of the cap 101, and the embedded steel bar 205 passes through the connection hole 303 of the pressure plate 3 and is fixed on the pressure plate 3 through the nut 2. The maximum diameter of the boss 202 is greater than the width of the reserved square hole 103. The depth L3 of the adjustment square hole 107 is greater than the thickness L4 of the embedded part 203, the diameters of the embedded part 203 and the rubber gasket 204 are greater than the width of the reserved square hole 103, and the diameters of the embedded part 203 and the rubber gasket 204 are smaller than the width of the adjustment square hole 107. A plurality of anchor bolts 104 are embedded in the upper end of the main column 102.

[0035] Reference Fig. 9 The pressure plate 3 includes a plate body 1 301, a connecting column 302 is arranged at the center of the upper end surface of the plate body 1 301, a plurality of connecting holes 303 are distributed on the plate body 1 301, and a connecting hole 4 304 is arranged at the center of the upper end surface of the connecting column 302. A plurality of reinforcing ribs are arranged between the pressure plate 3 and the connecting column 302.

[0036] The pipe pile 2 is driven into the foundation through a pile driving head 5. The pile driving head 5 comprises a main body 501, on which a plurality of connecting holes 2 502 are arranged. The thickness of the main body 501 is greater than the length of the embedded steel bars 205 extending out of the pile body 201.

[0037] A prefabricated multi-pipe pile-cap foundation construction process for transmission towers and frame columns, comprising the following steps: firstly driving a pipe pile 2 into the foundation for positioning, and installing a pile hammer 5 at the pile top during hammering; then installing a cap 101 of an upper foundation 1 at a position corresponding to the pipe pile 2, reserving a square hole 103 in the cap 101, and providing an external thread at the end of a pre-embedded steel bar 105 during prefabrication of a steel bar cage of the cap 101; when the cap 101 is installed, a boss 202 on the pipe pile 2 abuts against the lower end face of the cap 101, and an embedded portion 203 and a rubber gasket 204 on the pipe pile 2 extend into an adjustment square hole 107, and the embedded portion 203 and the rubber gasket 204 abut against the lower end face of the reserved square hole 103; then pouring mortar into the reserved square hole, and after the mortar solidifies, finally pressing a connecting plate onto the cap 101, and providing an external thread at the end of the pre-embedded steel bar 205. When the center hole is a smooth hole, a nut is installed on the threaded section 206, and the nut presses the connecting plate 6 tightly onto the support platform 101; when the center hole is a threaded hole, the threaded hole is connected to the threaded section 206 through threads, and the connecting plate 6 is pressed onto the support platform 101.

[0038] Embed the embedded steel bar 205 in the pipe pile 2, the embedded steel bar 2 extends out of the pipe pile 2 and is anchored to the top of the upper pedestal 101. The upper part of the threaded pipe pile 2 is expanded to improve the bearing capacity, and a rubber gasket 204 is placed on the part of the pipe pile 2 top embedded in the pedestal 101 for leveling.

[0039] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An assembled multi-tube pile-cap foundation for transmission towers and frame columns, comprising an upper foundation and pipe piles, wherein the upper foundation comprises a cap and a main column, wherein the main column is arranged above the cap, and wherein: The bearing platform is provided with reserved square holes, and an adjustment square hole is provided at the lower part of each reserved square hole. The width of the adjustment square hole is greater than the width of the reserved square hole. A square steel pipe is embedded in the reserved square hole. The pipe pile includes a pile body, and a boss is provided on the upper part of the pile body. A plurality of embedded steel bars 2 are embedded in the pile body, and the embedded steel bars 2 extend out of the pile body. An embedded portion is provided at the upper end of the pile body, and a rubber gasket is provided at the upper end of the embedded portion. The embedded portion and the rubber gasket extend into the square steel pipe. The length L2 of the embedded steel bar 2 extending out of the pile body is greater than the thickness L1 of the bearing platform. The upper end of the embedded steel bar 2 extends out of the upper end surface of the bearing platform. The embedded steel bar 2 passes through the connecting hole 3 of the pressure plate and is fixed to the pressure plate by the nut 2.

2. The assembled multi-tube pile-cap foundation for transmission towers and frame columns according to claim 1 is characterized in that: The pressure plate includes a plate body 1, a connecting column is arranged at the center of the upper end surface of the plate body 1, a plurality of connecting holes 3 are distributed on the plate body 1, and a connecting hole 4 is arranged at the center of the upper end surface of the connecting column.

3. The assembled multi-tube pile-cap foundation for transmission towers and frame columns according to claim 1 is characterized in that: The square steel pipe comprises a pipe body, and a plurality of connecting holes are arranged on the side of the pipe body.

4. The assembled multi-tube pile-cap foundation for transmission towers and frame columns according to claim 1 is characterized in that: The depth L3 of the adjustment square hole is greater than the thickness L4 of the embedding part, the diameters of the embedding part and the rubber gasket are greater than the width of the reserved square hole, and the diameters of the embedding part and the rubber gasket are smaller than the width of the adjustment square hole.

5. The assembled multi-tube pile-cap foundation for transmission towers and frame columns according to claim 1, characterized in that: The end of the embedded steel bar 1 extends into the tube body of the square steel pipe through the connecting hole 1, the end of the embedded steel bar 1 is provided with an external thread, the embedded steel bar 1 is connected to the nut 1 through the external thread, and the embedded steel bar 1 is fastened between the two square steel pipes through the nuts 1 at both ends.

6. The assembled multi-tube pile-cap foundation for transmission towers and frame columns according to claim 1, characterized in that: A plurality of threaded holes are arranged in the reserved square hole of the support platform, and the threaded holes are arranged concentrically with the connecting holes on the square steel pipe, and the diameters of the threaded holes and the connecting hole 1 are equal.

7. The assembled multi-tube pile-cap foundation for transmission towers and frame columns according to claim 6 is characterized in that: A screw rod or a bolt is threadedly arranged in the threaded hole.

8. The assembled multi-tube pile-cap foundation for transmission towers and frame columns according to claim 7 is characterized in that: One end of the screw rod is screwed into the threaded hole, and the other end of the screw rod is equipped with a nut three.

9. A construction process for assembled multi-tube pile-cap foundation for transmission towers and frame columns, comprising the following steps: First, drive the pipe pile into the foundation for positioning. When hammering, install a pile hammer head at the top of the pile; then install the pedestal of the upper foundation at the position corresponding to the pipe pile, reserve a square hole in the pedestal, put a square steel pipe in the reserved square hole, and during the prefabrication of the pedestal steel cage, open a connecting hole one on the square steel pipe, set an external thread at the end of the embedded steel bar one, pass the embedded steel bar one through the square steel pipe, and screw a nut on the inside of the square steel pipe to fix it. When the pedestal is installed, the boss on the pipe pile abuts against the lower end face of the pedestal, the embedded part and the rubber gasket on the pipe pile extend into the adjustment square hole, the embedded part and the rubber gasket abut against the lower end face of the reserved square hole, and then pour mortar in the square steel pipe. After the mortar solidifies, finally make the embedded steel bar two extending out of the pedestal pass through the connecting hole three of the pressure plate, the end of the embedded steel bar two is set with an external thread, and a nut is installed on the embedded steel bar two, so that the pressure plate is pressed on the pedestal.

10. An assembled multi-tube pile-cap foundation for transmission towers and frame columns, comprising an upper foundation and pipe piles, wherein the upper foundation comprises a cap and a main column, characterized in that: The main column is arranged above the pedestal, and a reserved square hole is arranged on the pedestal. An adjustment square hole is arranged at the lower part of each reserved square hole, and the width of the adjustment square hole is greater than the width of the reserved square hole. The pipe pile includes a pile body, and a boss is arranged on the upper part of the pile body. The second embedded steel bar extends out of the pile body, and an embedded part is arranged at the upper end of the pile body. A rubber gasket is arranged at the upper end of the embedded part, and the embedded part and the rubber gasket extend into the reserved square hole. A second embedded steel bar is embedded in the pile body, and a threaded section is arranged at the upper end of the second embedded steel bar. The second embedded steel bar is connected to the connecting plate through the threaded section at the upper end, and the size of the connecting plate is greater than the size of the reserved square hole. The length L2 of the second embedded steel bar extending out of the pile body is greater than the thickness L1 of the pedestal, and the upper end of the second embedded steel bar extends out of the upper end surface of the pedestal, and the second embedded steel bar passes through the connecting hole three of the pressure plate and is fixed to the pressure plate by the second nut.

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