Static pressure pile of prestressed concrete pipe pile

Abstract

The invention discloses a prestressed concrete pipe pile static pressure pile which comprises a static pressure pile body, a bottom end plate, a top end plate and a combined fixing piece. The bottom end plates are arranged at the bottom ends of the static pressure piles, the top end plates are installed at the top ends of the static pressure piles, and the bottom end plates and the top end plates are connected in a matched and inserted mode so that every two adjacent static pressure piles can be coaxially connected. The bottom end plate piece and the top end plate piece are connected through a combined fixing piece, so that every two adjacent static pressure piles are coaxially and fixedly connected. The invention relates to the technical field of constructional engineering, and can solve the problem of inconvenient connection of static pressure piles in the prior art.

Description

Technical Field

[0001] The invention relates to the technical field of construction engineering, and in particular to a prestressed concrete pipe pile static pressure pile. Background Art

[0002] The static pile method is a pile sinking process that uses the pile driving mechanism of the static pile driver to provide reaction force with the deadweight of the pile driver and the counterweight on the frame to press the prefabricated piles into the soil. It completely avoids the vibration, noise and pollution caused by hammering piles. At the same time, it does not damage the piles. During the construction process, the pile body is not prone to cracks and other defects. The static pile construction accuracy is high, and the verticality of the pile body and the pile position deviation are easier to control, which can effectively ensure the bearing capacity and stability of the pile foundation. However, there are the following defects:

[0003] When the required static pressure pile is long, it is inconvenient to connect two static pressure piles, and the connection convenience, reliability and coaxiality cannot be guaranteed, which affects the normal use of the static pressure pile. Therefore, it is necessary to provide a prestressed concrete pipe static pressure pile that can solve the problem of inconvenient connection of static pressure piles in the prior art. Summary of the invention

[0004] The purpose of the present invention is to provide a prestressed concrete pipe pile static pressure pile, which can solve the problem of inconvenient connection of static pressure piles in the prior art.

[0005] The present invention is achieved in that:

[0006] A prestressed concrete pipe pile static pressure pile comprises a static pressure pile, a bottom plate, a top plate and a combined fixing piece; the bottom plate is arranged at the bottom end of the static pressure pile, the top plate is installed at the top end of the static pressure pile, the bottom plate is matched and plugged with the top plate, so that two adjacent static pressure piles are coaxially connected; the bottom plate and the top plate are connected by the combined fixing piece, so that the two adjacent static pressure piles are coaxially fixedly connected.

[0007] The bottom plate member includes a bottom plate, the top surface of which is coaxially mounted on the bottom end of the static pressure pile, and a plurality of positioning grooves are formed at intervals on the bottom of the bottom plate; the top plate member includes a top plate, the bottom surface of which is coaxially mounted on the top end of the static pressure pile, and a plurality of positioning blocks are formed at intervals on the top surface of the top plate; when two adjacent static pressure piles are connected, the plurality of positioning blocks are respectively inserted into the plurality of positioning grooves.

[0008] A lower annular groove is formed circumferentially at the lower edge of the bottom plate, and an upper annular groove is formed circumferentially at the upper edge of the top plate. When the bottom end plate and the top end plate are plugged into each other, the lower annular groove and the upper annular groove form an annular groove body, and the combined fixing part is embedded in the annular groove body and movably connects the bottom end plate and the top end plate.

[0009] The combined fixing member comprises an arc plate, a transverse clamping rod and an inserting plate; a pair of semicircular arc plates are spliced ​​to form an annular structure and can be matched and clamped in the annular groove body; the inserting plate and the transverse clamping rod are respectively arranged on the inner wall of the arc plate, and a pair of transverse clamping rods are located on both sides of the inserting plate; a slot is formed in the upper ring groove, and the inserting plate is matched and inserted in the slot; a side clamping groove is formed in the positioning block, and the axial direction of the side clamping groove is perpendicular to the axial direction of the positioning block, and a side through groove is formed in the bottom plate, and the two ends of the side through groove are respectively vertically connected with the positioning groove and the lower ring groove, and when the positioning block is inserted in the positioning groove, the side clamping groove is aligned with the side through groove, so that the transverse clamping rod can be matched and inserted in the side clamping groove and the side through groove.

[0010] Side grooves are formed on both sides of the slot; a movable groove is formed in the plug board, and side grooves are respectively formed on both sides of one end of the plug board close to the top plate, so that when the plug board is plugged into the slot, a pair of side grooves are respectively aligned with a pair of side grooves; a pair of movable plates are movably arranged in the movable grooves, one end of the pair of movable plates is connected by a spring, and the other end of the pair of movable plates is respectively connected with a clamping plate, and the pair of clamping plates can pass through the side grooves and then be plugged into the side grooves.

[0011] The end of the movable groove away from the top plate passes through the outer side of the arc plate through the outer groove, and a pair of push plates are respectively connected to one end of a pair of movable plates, and the pair of push plates are movably arranged in the outer groove.

[0012] A push plate is provided in the side groove, and the card plate abuts against the push plate after being inserted into the side groove; a rod groove is formed on the side of the side groove away from the slot, the vertically arranged rod groove penetrates upward through the top surface of the top plate, and the longitudinal card rod is movably clamped in the rod groove; a connecting rod is movably provided in the side groove, and the two ends of the connecting rod are hinged to the push plate and the longitudinal card rod respectively; a bottom through groove is formed in the bottom plate, the upper end of the bottom through groove is vertically connected with the side through groove, and the lower end of the bottom through groove penetrates downward through the bottom surface of the bottom plate; a bottom clamping groove is formed at the bottom of the horizontal clamping rod, and the upper end of the longitudinal clamping rod can be clamped into the bottom clamping groove after penetrating the top surface of the top plate and the bottom through groove.

[0013] The connecting rod is arranged obliquely, and the connecting end of the connecting rod and the push plate is lower than the connecting end of the connecting rod and the longitudinal clamping rod.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. The present invention is provided with a bottom plate, a top plate and a combined fixing part, and the coaxial positioning of two upper and lower adjacent static pressure piles is achieved by using the positioning groove of the bottom plate and the positioning block of the top plate, so that the connection convenience and coaxiality of the static pressure piles can be ensured; at the same time, the bottom plate and the top plate are connected by the combined fixing part, so that the connection reliability of the two upper and lower adjacent static pressure piles can be ensured; the structural design of the present invention is reasonable and practical, so that the static pressure piles can be produced in a standardized manner, saving production and transportation costs, and can be applied to various construction projects such as houses and factories.

[0016] 2. The present invention is provided with a bottom plate, a top plate and a combined fixing part, and through the setting of the plug plate and the slot and their matching plug-in, through the setting of the transverse clamping rod and the side clamping slot and their matching plug-in, it is convenient to quickly and accurately connect the arc plate with the top plate; at the same time, through the setting of the side through grooves and the transverse clamping rod and their matching plug-in, it is convenient to quickly and accurately connect the arc plate with the bottom plate, thereby ensuring the connection reliability of the bottom plate and the top plate, and further ensuring the connection reliability between the two static pressure piles.

[0017] 3. The present invention is provided with a bottom plate, a top plate and a combined fixing part. A pair of clamping plates are controlled to be relatively far away or relatively close by a push plate through a movable plate and a spring, so that a pair of clamping plates can be inserted into the side grooves of the top plate and push the push plate to move synchronously. The longitudinal clamping rod is passed through the top surface of the top plate along the rod groove and inserted into the bottom through groove by means of a hinged connecting rod. The longitudinal clamping rod is finally inserted into the bottom clamping groove, effectively locking and connecting the positioning block, the bottom plate and the transverse clamping rod, thereby ensuring the connection reliability between the bottom plate, the top plate and the combined fixing part, and further ensuring the connection reliability of adjacent static pressure piles. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a stereoscopic diagram of the prestressed concrete pipe pile static pressure pile of the present invention;

[0019] Figure 2 It is a schematic diagram of the connection combination of the prestressed concrete pipe pile static pressure pile of the present invention;

[0020] Figure 3 It is a schematic diagram of the connection between the bottom plate, the top plate and the combined fixing member in the static pressure pile of the prestressed concrete pipe pile of the present invention;

[0021] Figure 4 It is an exploded view of the connection of the bottom plate, the top plate and the combined fixing member in the static pressure pile of the prestressed concrete pipe pile of the present invention;

[0022] Figure 5 It is a structural schematic diagram of the bottom end plate of the prestressed concrete pipe pile static pressure pile of the present invention;

[0023] Figure 6 It is a structural schematic diagram of the top plate in the static pressure pile of the prestressed concrete pipe pile of the present invention;

[0024] Figure 7 It is a structural schematic diagram of the arc plate in the static pressure pile of the prestressed concrete pipe pile of the present invention;

[0025] Figure 8 It is a schematic diagram of the internal structure of the arc plate in the prestressed concrete pipe pile static pressure pile of the present invention.

[0026] In the figure, 1, static pressure pile; 2, bottom plate; 201, bottom plate; 202, lower annular groove; 203, positioning groove; 204, side through groove; 205, bottom through groove; 3, top plate; 301, top plate; 302, upper annular groove; 303, positioning block; 304, side clamping groove; 305, slot; 306, side groove; 307, rod groove; 308, push plate; 309, longitudinal clamping rod; 310, connecting rod; 4, combined fixing part; 401, arc plate; 402, transverse clamping rod; 403, bottom clamping groove; 404, plug plate; 405, movable groove; 406, side groove; 407, movable plate; 408, clamping plate; 409, spring; 410, outer groove; 411, push plate. DETAILED DESCRIPTION

[0027] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0028] Please see attached Figure 1 To Attachment Figure 3 A prestressed concrete pipe pile static pressure pile comprises a static pressure pile 1, a bottom plate 2, a top plate 3 and a combined fixing part 4; the bottom plate 2 is arranged at the bottom end of the static pressure pile 1, the top plate 3 is installed at the top end of the static pressure pile 1, the bottom plate 2 is matched and plugged with the top plate 3, so that the two adjacent static pressure piles 1 are coaxially connected; the bottom plate 2 and the top plate 3 are connected by the combined fixing part 4, so that the two adjacent static pressure piles 1 are coaxially fixedly connected.

[0029] The bottom plate 2 and the top plate 3 are provided to quickly and accurately coaxially position two adjacent static pressure piles 1, which is convenient for the coaxial connection and combination of the static pressure piles 1. The combined fixing member 4 is provided to connect and fix the bottom plate 2 and the top plate 3, so that the two adjacent static pressure piles 1 are connected and combined into a whole, which is convenient for the extension and use of the static pressure piles 1, and can ensure the convenience, reliability and coaxiality of the connection to meet the construction requirements.

[0030] Please see attached Figure 4 To Attachment Figure 6 The bottom plate 2 includes a bottom plate 201, the top surface of which is coaxially mounted on the bottom end of the static pressure pile 1, and a plurality of positioning grooves 203 are formed at intervals at the bottom of the bottom plate 201; the top plate 3 includes a top plate 301, the bottom surface of which is coaxially mounted on the top end of the static pressure pile 1, and a plurality of positioning blocks 303 are formed at intervals at the top surface of the top plate 301; when two adjacent static pressure piles 1 are connected, the plurality of positioning blocks 303 are respectively inserted into the plurality of positioning grooves 203.

[0031] Preferably, four positioning grooves 203 are arranged at equal intervals, and correspondingly, four positioning blocks 203 are also arranged at equal intervals, so that two upper and lower adjacent static pressure piles 1 can be quickly and accurately positioned by plugging the four positioning blocks 203 into the four positioning grooves 203, respectively, thereby ensuring the coaxiality and convenience of the connection of the static pressure piles 1.

[0032] The number of the positioning blocks 203 and the positioning slots 203 can be adaptively adjusted according to actual needs. The number of the positioning blocks 203 and the positioning slots 203 is the same and at least two are sufficient.

[0033] Preferably, both the top plate 301 and the bottom plate 201 are disc-shaped structures having the same diameter as the static pressure pile 1 , so as to facilitate installation of the top plate 301 and the bottom plate 201 on the top and bottom ends of the static pressure pile 1 .

[0034] Please see attached Figure 3 and attached Figure 4 A lower annular groove 202 is formed circumferentially at the lower edge of the bottom plate 201, and an upper annular groove 302 is formed circumferentially at the upper edge of the top plate 301. When the bottom plate 2 and the top plate 3 are plugged in, the lower annular groove 202 and the upper annular groove 302 form an annular groove body, and the combined fixing part 4 is embedded in the annular groove body and movably connects the bottom plate 2 and the top plate 3.

[0035] Preferably, the lower annular groove 202 is consistent with the upper annular groove 302 in height, and the height and depth of the annular groove body are respectively consistent with the height and thickness of the combined fixing member 4, thereby ensuring the vertical force stability of the static pressure pile 1. The combined fixing member 4 is matched and embedded in the annular groove body, so that the bottom plate 2 and the top plate 3 can be quickly and reliably connected through the combined fixing member 4.

[0036] Please see attached Figure 4 To Attachment Figure 7 The combined fixing member 4 includes an arc plate 401, a transverse clamping rod 402 and an inserting plate 404; a pair of semicircular arc plates 401 are spliced ​​to form an annular structure and can be matched and clamped in the annular groove body; the inserting plate 404 and the transverse clamping rod 402 are respectively arranged on the inner wall of the arc plate 401, and a pair of transverse clamping rods 402 are located on both sides of the inserting plate 404; a slot 305 is formed in the upper annular groove 302, and the inserting plate 404 is matched and plugged in the slot 305; the positioning block 30 3, a side clamping groove 304 is formed in the bottom plate 201, and the axial direction of the side clamping groove 304 is perpendicular to the axial direction of the positioning block 303. A side through groove 204 is formed in the bottom plate 201, and the two ends of the side through groove 204 are respectively vertically connected with the positioning groove 203 and the lower ring groove 202, and when the positioning block 303 is inserted into the positioning groove 203, the side clamping groove 304 is aligned with the side through groove 204, so that the transverse clamping rod 402 can be matched and inserted into the side clamping groove 304 and the side through groove 204.

[0037] By setting and matching the plug-in board 404 and the slot 305, and by setting and matching the horizontal clamping rod 402 and the side clamping slot 304, the arc plate 401 can be quickly and accurately connected to the top plate 301. By setting and matching the side through slot 204 and the horizontal clamping rod 402, the arc plate 401 can be quickly and accurately connected to the bottom plate 201.

[0038] The setting directions of the side through slots 204 and the transverse clamping rod 402, the setting directions of the plug-in plate 404 and the slot 305, and the transverse clamping rod 402 and the side clamping slot 304 are all transverse, which can be used to limit the relative vertical movement between the arc plate 401, the bottom plate 201 and the top plate 301 after plugging, thereby improving the connection reliability.

[0039] Please see attached Figure 6 To Attachment Figure 8 , side grooves 306 are formed on both sides of the slot 305; a movable slot 405 is formed in the plug plate 404, and side grooves 406 are respectively formed on both sides of one end of the plug plate 404 close to the top plate 3, so that when the plug plate 404 is inserted into the slot 305, a pair of side grooves 406 are respectively aligned with a pair of side grooves 306; a pair of movable plates 407 are movably arranged in the movable slot 405, one end of the pair of movable plates 407 is connected by a spring 409, and the other end of the pair of movable plates 407 is respectively connected with a clamping plate 408, and the pair of clamping plates 408 can pass through the side grooves 406 and then be inserted into the side grooves 306.

[0040] When the pair of movable plates 407 approach each other in the movable slot 405, the pair of clamping plates 408 can be driven to approach synchronously, so that the pair of clamping plates 408 are retracted into the movable slot 405 to avoid interfering with the insertion of the plug plate 404 and the slot 305; at this time, the spring 409 contracts and accumulates force.

[0041] When the pair of movable plates 407 move away from each other in the movable slot 405 due to the elastic force of the spring 409, the pair of clamping plates 408 can be driven to move away synchronously, and the pair of clamping plates 408 pass through the side slot 406 and then insert into the side slot 306. Preferably, the movable direction of the pair of clamping plates 408 is perpendicular to the radial direction of the arc plate 401, so as to play a role of radial limiting, and the plugging plate 404 can be locked in the slot 305.

[0042] Please see attached Figure 8 The end of the movable groove 405 away from the top plate 3 passes through the outer side of the arc plate 401 through the outer groove 410, and a pair of push plates 411 are respectively connected to one end of a pair of movable plates 407, and the pair of push plates 411 are movably arranged in the outer groove 410.

[0043] The through arrangement of the outer groove 410 facilitates the construction personnel to manually control the movement of the pair of push plates 411, thereby driving the pair of movable plates 407 to move away from or toward each other. The size of the outer groove 410 can be adaptively adjusted according to actual needs to ensure that there is enough space for manual operation of the push plates 411.

[0044] Please see attached Figure 6 , a push plate 308 is provided in the side groove 306, and the card plate 408 abuts against the push plate 308 after being inserted into the side groove 306, and a rod groove 307 is formed on the side of the side groove 306 away from the slot 305, and the vertically arranged rod groove 307 penetrates upwardly through the top surface of the top plate 301, and the longitudinal card rod 309 is movably connected in the rod groove 307; a connecting rod 310 is movably provided in the side groove 306, and the two ends of the connecting rod 310 are hinged to the push plate 308 and the longitudinal card rod 309 respectively; a bottom through groove 205 is formed in the bottom plate 201, and the upper end of the bottom through groove 205 is vertically connected to the side through groove 204, and the lower end of the bottom through groove 205 penetrates downwardly through the bottom surface of the bottom plate 201; a bottom card groove 403 is formed at the bottom of the horizontal card rod 402, and the upper end of the longitudinal card rod 309 can be connected to the bottom card groove 403 after penetrating the top surface of the top plate 301 and the bottom through groove 205.

[0045] The push plate 308 is located in the side groove 306. After the clamping plate 408 is inserted into the side groove 306, it abuts against the push plate 308 and pushes the push plate 308 to move in the side groove 306. While the push plate 308 moves, the connecting rod 310 is used to push the longitudinal clamping rod 309 to move upward along the rod groove 307 through the hinge shaft, so that the longitudinal clamping rod 309 passes through the top surface of the top plate 301 along the rod groove 307 and is inserted into the bottom through groove 205, which is used to lock the positioning block 303, the bottom plate 201 and the transverse clamping rod 402, ensuring the connection reliability between the bottom end plate 2, the top end plate 3 and the combined fixing member 4, and further ensuring the connection reliability of the adjacent static pressure piles 1.

[0046] At the same time, a bottom slot 403 is set at the bottom of the transverse clamping rod 402, and the longitudinal clamping rod 309 matches the bottom slot 403, so that the longitudinal clamping rod 309 is vertically plugged into the transverse clamping rod 402, which is used to further limit the transverse clamping rod 402 through the bottom slot 403, thereby further improving the connection reliability of adjacent static pressure piles 1.

[0047] Please see attached Figure 6 The connecting rod 310 is arranged obliquely, and the connecting end of the connecting rod 310 and the push plate 308 is lower than the connecting end of the connecting rod 310 and the longitudinal clamping rod 309.

[0048] The obliquely arranged connecting rod 310 can form a vertical force component under the lateral thrust of the push plate 308 , thereby applying a vertical force to the longitudinal clamping rod 309 to ensure that the longitudinal clamping rod 309 moves vertically along the rod groove 307 .

[0049] Please see attached Figure 1 To Attachment Figure 8 The connection method and working principle of the present invention for adjacent static pressure piles 1 are as follows:

[0050] The bottom plate 2 and the top plate 3 are synchronously installed at the bottom and top of the static pressure pile 1 when the static pressure pile 1 is manufactured.

[0051] When connecting two adjacent static pressure piles 1 above and below, the positioning block 303 on the top plate 3 of the static pressure pile 1 below is inserted into the positioning groove 203 of the bottom plate 2 of the static pressure pile 1 above. The two adjacent static pressure piles 1 above and below are quickly and accurately coaxially positioned and plugged in through four positioning blocks 303 and four positioning grooves 203, thereby ensuring the coaxiality and convenience of the connection of the static pressure piles 1.

[0052] Then, two arc plates 401 are installed in the annular groove body formed by the lower annular groove 202 of the bottom plate 201 and the upper annular groove 302 of the top plate 301. The two arc plates 401 are installed symmetrically and the installation method is the same. Take one arc plate 401 as an example for explanation:

[0053] When the arc plate 401 is installed, the two push plates 411 are used to pull the two movable plates 407 closer to each other, and the spring 409 is compressed and stored, so that the clamping plates 408 are synchronously closer to each other and retracted into the movable groove 405, and the two transverse clamping rods 402 respectively pass through the two side through grooves 204 and are inserted into the two side clamping grooves 304, and the inserting plate 404 is inserted into the slot 305. Then, the two push plates 411 are released, so that the two clamping plates 408 are separated from each other under the elastic force of the spring 409, so that the clamping plates 408 pass through the movable groove 405 through the side groove 406 and are inserted into the side groove 306, thereby clamping and fixing the bottom plate 201, the top plate 301 and the arc plate 401. During the process of inserting the clamping plate 408 into the side groove 306, the clamping plate 408 pushes the push plate 308 to move in the side groove 306, and the connecting rod 310 which is hingedly arranged obliquely pushes the longitudinal clamping rod 309 to move upward, so that it passes through the bottom through groove 205 and is just clamped into the bottom clamping groove 403, thereby further improving the clamping stability and completing the connection combination of the two static pressure piles 1.

[0054] The above method can be used to connect and combine multiple static pressure piles 1 to meet the use length requirements of the static pressure piles 1. When disassembling, just disassemble in reverse according to the above steps, which will not be repeated here.

[0055] The above are only preferred embodiments of the present invention and are not intended to limit the scope of protection of the invention. Therefore, any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A prestressed concrete pipe pile static pressure pile, characterized in that: The invention comprises a static pressure pile (1), a bottom plate (2), a top plate (3) and a combined fixing member (4); the bottom plate (2) is arranged at the bottom end of the static pressure pile (1), the top plate (3) is installed at the top end of the static pressure pile (1), the bottom plate (2) and the top plate (3) are matched and plugged, so that two adjacent static pressure piles (1) are coaxially connected; the bottom plate (2) and the top plate (3) are connected via the combined fixing member (4), so that the two adjacent static pressure piles (1) are coaxially fixedly connected.

2. The prestressed concrete pipe pile static pressure pile according to claim 1 is characterized in that: The bottom plate (2) comprises a bottom plate (201), the top surface of the bottom plate (201) is coaxially mounted on the bottom end of the static pressure pile (1), and a plurality of positioning grooves (203) are formed at intervals on the bottom of the bottom plate (201); the top plate (3) comprises a top plate (301), the bottom surface of the top plate (301) is coaxially mounted on the top end of the static pressure pile (1), and a plurality of positioning blocks (303) are formed at intervals on the top surface of the top plate (301); when two adjacent static pressure piles (1) are connected, the plurality of positioning blocks (303) are respectively inserted into the plurality of positioning grooves (203).

3. The prestressed concrete pipe pile static pressure pile according to claim 2 is characterized in that: A lower annular groove (202) is formed circumferentially at the lower edge of the bottom plate (201), and an upper annular groove (302) is formed circumferentially at the upper edge of the top plate (301). When the bottom plate (2) and the top plate (3) are plugged in, the lower annular groove (202) and the upper annular groove (302) form an annular groove body, and the combined fixing part (4) is embedded in the annular groove body and movably connects the bottom plate (2) and the top plate (3).

4. The prestressed concrete pipe pile static pressure pile according to claim 3 is characterized in that: The combined fixing member (4) comprises an arc plate (401), a transverse clamping rod (402) and an inserting plate (404); a pair of semicircular arc plates (401) are spliced ​​to form an annular structure and can be matched and clamped in the annular groove body; the inserting plate (404) and the transverse clamping rod (402) are respectively arranged on the inner wall of the arc plate (401), and the pair of transverse clamping rods (402) are located on both sides of the inserting plate (404); a slot (305) is formed in the upper annular groove (302), and the inserting plate (404) is matched and plugged in the slot (305); the positioning block (303 ) is formed with a side slot (304), the axial direction of the side slot (304) is perpendicular to the axial direction of the positioning block (303), a side through slot (204) is formed in the bottom plate (201), the two ends of the side through slot (204) are respectively vertically connected to the positioning slot (203) and the lower ring groove (202), and when the positioning block (303) is inserted into the positioning slot (203), the side slot (304) is aligned with the side through slot (204), so that the transverse clamping rod (402) can be matched and inserted into the side slot (304) and the side through slot (204).

5. The prestressed concrete pipe pile static pressure pile according to claim 4 is characterized in that: Side grooves (306) are formed on both sides of the slot (305); a movable slot (405) is formed in the plug plate (404); side grooves (406) are respectively formed on both sides of one end of the plug plate (404) close to the top plate (3), so that when the plug plate (404) is inserted into the slot (305), a pair of side grooves (406) are respectively aligned with a pair of side grooves (306); a pair of movable plates (407) are movably arranged in the movable slot (405), one end of the pair of movable plates (407) is connected by a spring (409), and the other end of the pair of movable plates (407) is respectively connected with a clamping plate (408), and the pair of clamping plates (408) can penetrate the side grooves (406) and then be inserted into the side grooves (306).

6. The prestressed concrete pipe pile static pressure pile according to claim 5 is characterized in that: The end of the movable groove (405) away from the top plate (3) passes through the outer side of the arc plate (401) through the outer groove (410), and a pair of push plates (411) are respectively connected to one end of a pair of movable plates (407), and the pair of push plates (411) are movably arranged in the outer groove (410).

7. The prestressed concrete pipe pile static pressure pile according to claim 5 is characterized in that: A push plate (308) is provided in the side groove (306), and the clamping plate (408) is inserted into the side groove (306) and abuts against the push plate (308). A rod groove (307) is formed on the side of the side groove (306) away from the slot (305). The vertically arranged rod groove (307) penetrates the top surface of the top plate (301) upward, and the longitudinal clamping rod (309) is movably clamped in the rod groove (307); a connecting rod (310) is movably provided in the side groove (306), and the two ends of the connecting rod (310) are respectively connected to the push plate ( The bottom plate (201) is hinged with the longitudinal clamping rod (308); a bottom through groove (205) is formed in the bottom plate (201); the upper end of the bottom through groove (205) is vertically connected with the side through groove (204); the lower end of the bottom through groove (205) penetrates downward through the bottom surface of the bottom plate (201); a bottom clamping groove (403) is formed at the bottom of the transverse clamping rod (402); the upper end of the longitudinal clamping rod (309) penetrates the top surface of the top plate (301) and the bottom through groove (205) and can be clamped into the bottom clamping groove (403).

8. The prestressed concrete pipe pile static pressure pile according to claim 7 is characterized in that: The connecting rod (310) is arranged obliquely, and the connecting end of the connecting rod (310) and the push plate (308) is lower than the connecting end of the connecting rod (310) and the longitudinal clamping rod (309).

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