CN214695702U

CN214695702U - High-strength prestressed concrete pipe pile foundation

Info

Publication number: CN214695702U
Application number: CN202120755452.6U
Authority: CN
Inventors: 何结华; 唐国梅; 陈亮波
Original assignee: Guangdong Yuefeng Construction Engineering Co ltd
Current assignee: Guangdong Yuefeng Construction Engineering Co ltd
Priority date: 2021-04-14
Filing date: 2021-04-14
Publication date: 2021-11-12
Anticipated expiration: 2031-04-14

Abstract

The application relates to a high-strength prestressed concrete tubular pile foundation, which comprises a plurality of tubular pile bodies and a bearing platform which is connected with the upper ends of all the tubular pile bodies together; the upper end of each tubular pile body is provided with a reinforcing piece; the reinforcing piece comprises a fixing sleeve sleeved on the outer peripheral wall of the tubular pile body and a plurality of reinforcing plates connected with the outer side wall of the fixing sleeve, and all the reinforcing plates are sequentially arranged along the circumferential direction of the fixing sleeve; and a fixing component for fixing the fixing sleeve is arranged between the fixing sleeve and the tubular pile body. The reinforcing plate increases the contact area between the tubular pile body and the bearing platform, improves the connection strength between the bearing platform and the tubular pile body, and is beneficial to shortening the length of the tubular pile body embedded in the bearing platform, thereby reducing the construction cost.

Description

High-strength prestressed concrete pipe pile foundation

Technical Field

The application relates to the field of pipe pile foundations, in particular to a high-strength prestressed concrete pipe pile foundation.

Background

The tubular pile foundation is a building foundation formed by connecting the upper ends of a plurality of tubular piles through bearing platforms, and is a foundation form with strong bearing capacity and wide application range.

A tubular pile foundation, refer to fig. 1, which comprises a plurality of tubular pile bodies 1 which are parallel to each other and are arranged in a dispersed manner, wherein the lower ends of the tubular pile bodies 1 are inserted into the bottom wall of a foundation pit, and the upper ends of the tubular pile bodies 1 are positioned above the bottom wall of the foundation pit; the upper ends of all the tubular pile bodies 1 are connected with a bearing platform 2 together. Cushion cap 2 is by concrete placement shaping, and the part that tubular pile body 1 is located foundation ditch diapire top is pour in cushion cap 2.

In view of the above-mentioned related arts, the inventor believes that the longer the portion of the tubular pile body 1 buried in the bearing platform 2 is, the higher the connection strength between the tubular pile body 1 and the bearing platform 2 is, and the better the bearing capacity of the tubular pile foundation is. However, the longer the portion of the tubular pile body 1 buried in the bearing platform 2, the greater the thickness of the bearing platform 2, and the greater the amount of concrete required to pour the bearing platform 2, leading to an increase in construction costs, and thus, improvement is desired.

SUMMERY OF THE UTILITY MODEL

In order to reduce the construction cost of tubular pile basis, this application provides a high strength prestressed concrete tubular pile basis.

The application provides a high strength prestressed concrete tubular pile basis adopts following technical scheme:

a high-strength prestressed concrete tubular pile foundation comprises a plurality of tubular pile bodies and a bearing platform which is connected with the upper ends of all the tubular pile bodies; the upper end of each tubular pile body is provided with a reinforcing piece; the reinforcing piece comprises a fixing sleeve sleeved on the outer peripheral wall of the tubular pile body and a plurality of reinforcing plates connected with the outer side wall of the fixing sleeve, and all the reinforcing plates are sequentially arranged along the circumferential direction of the fixing sleeve; and a fixing component for fixing the fixing sleeve is arranged between the fixing sleeve and the tubular pile body.

Through adopting above-mentioned technical scheme, the reinforcing plate can be pour in the cushion cap to increase the area of contact between tubular pile body and the cushion cap, improved the joint strength between cushion cap and the tubular pile body, be favorable to shortening the tubular pile body and bury the length in the cushion cap, thereby can reduce the thickness of cushion cap, and then reduce construction cost. During construction, the fixing sleeve is sleeved on the peripheral wall of the tubular pile body and is fixed through the fixing assembly, the structure is simple, and the operation is convenient.

Optionally, the fixing assembly includes an abutting arc plate located between the fixing sleeve and the tubular pile body and a driving screw in threaded connection with the fixing sleeve; the axial direction of the driving screw is arranged along the wall thickness direction of the fixed sleeve; the drive screw rod is close to the one end of tubular pile body and is connected with the butt arc board rotation.

Through adopting above-mentioned technical scheme, rotate drive screw, can drive the butt arc board and remove to tubular pile body direction to the periphery wall that makes butt arc board and tubular pile body supports tightly, thereby fixed sleeve, easy operation, convenient. The butt arc plate is matched with the driving screw rod, so that the fixing sleeve and the tubular pile body with different outer diameter sizes are conveniently and fixedly connected, and the applicability of the fixing sleeve is improved.

Optionally, the butt arc board is fixed to be provided with along the guide bar that the axial of drive screw extended to the direction of keeping away from the tubular pile body, fixed sleeve runs through and is provided with the complex guiding hole that can slide with the guide bar.

By adopting the technical scheme, the guide rod is matched with the guide hole, so that the rotation of the abutting arc plate can be limited, and the abutting plate is convenient to align and abut against the outer peripheral wall of the tubular pile body; the butt arc plate is not needed to be supported by hands, and the operation is convenient and labor-saving.

Optionally, the butt arc plate is fixedly provided with a limiting block, and the tubular pile body is provided with a limiting ring groove for embedding the limiting block along the circumferential direction of the tubular pile body.

Through adopting above-mentioned technical scheme, stopper and spacing annular cooperation can restrict the removal of butt arc board along the length direction of tubular pile body to improved the stability of butt arc board with the periphery wall butt of tubular pile body, and then improved the stability of fixed sleeve with this body coupling of tubular pile.

Optionally, the fixed locating plate that is provided with can with the upper end wall butt of tubular pile body of fixed sleeve, the locating plate can be dismantled with fixed sleeve and be connected.

Through adopting above-mentioned technical scheme, when the locating plate during with the last endwall butt of tubular pile body, the stopper aligns with spacing annular to be convenient for the stopper insert in the spacing annular. After the fixing sleeve is fixed with the tubular pile body, the positioning plate can be detached so as to pour concrete into the tubular pile body.

Optionally, one end of the reinforcing plate, which is close to the fixing sleeve, is fixedly provided with an installation block, and the fixing sleeve is provided with an installation groove which can be matched with the installation block in an inserting manner.

Through adopting above-mentioned technical scheme, installation piece and mounting groove are pegged graft and are cooperated, and the reinforcing plate can be dismantled with fixed sleeve and be connected, simple structure, the installation of the reinforcing plate of being convenient for. Before the use, reinforcing plate and fixed sleeve separation are convenient for reduce fixed sleeve's volume to be convenient for fixed sleeve's transportation and deposit.

Optionally, the mounting block is slidably provided with a fixing rod along the width direction of the reinforcing plate, and the fixing sleeve is provided with a slot into which one end of the fixing rod can be inserted; an elastic piece capable of driving the fixing rod to move towards the slot direction is arranged between the fixing rod and the mounting block.

Through adopting above-mentioned technical scheme, when dead lever and slot align, the elastic component can drive the dead lever and remove to the slot direction to make the dead lever insert in the slot, thereby can restrict the removal of installation piece, improved the stability that installation piece and mounting groove are connected.

Optionally, one end of the fixing rod close to the slot is obliquely provided with a guide surface capable of abutting against the outer peripheral wall of the fixing sleeve.

By adopting the technical scheme, the guide surface can be abutted against the outer peripheral wall of the fixed sleeve in the process that the mounting block moves into the mounting groove; continuing to remove the installation piece this moment, under the effect of spigot surface, the dead lever can be removed to the direction of keeping away from the mounting groove inside wall automatically to in the installation piece inserts the mounting groove, need not manual dead lever of stirring, easy operation, it is convenient.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the reinforcing plate can increase the contact area between the tubular pile body and the bearing platform, so that the connection strength between the bearing platform and the tubular pile body is improved, the length of the tubular pile body embedded in the bearing platform is favorably shortened, and the construction cost is favorably reduced;

2. the abutting arc plate is matched with the driving screw, so that the fixing sleeve is conveniently and fixedly connected with the tubular pile bodies with different outer diameter sizes, and the applicability of the fixing sleeve is improved;

3. the reinforcing plate is detachably connected with the fixed sleeve, so that the size of the fixed sleeve is convenient to reduce, and the fixed sleeve is convenient to transport and store.

Drawings

Fig. 1 is a schematic structural diagram of a pipe pile foundation in the related art.

Fig. 2 is a schematic view of the overall structure of a high-strength prestressed concrete pipe pile foundation according to an embodiment of the present invention.

Fig. 3 is a schematic view for showing a connection structure of the fixing sleeve and the tube pile body.

Fig. 4 is a schematic sectional view for showing a connection structure between the reinforcing plate and the fixing sleeve.

Description of reference numerals: 1. a tubular pile body; 11. a limiting ring groove; 2. a bearing platform; 3. a reinforcement; 31. fixing the sleeve; 311. a guide hole; 312. positioning a plate; 313. positioning holes; 314. mounting grooves; 3141. a slot; 32. a reinforcing plate; 321. connecting reinforcing steel bars; 4. A fixing assembly; 41. abutting against the arc plate; 411. a guide bar; 412. a limiting block; 42. a drive screw; 5. mounting blocks; 51. a fixing hole; 511. fixing the rod; 5111. a guide surface; 52. an elastic member.

Detailed Description

The present application is described in further detail below with reference to figures 2-4.

The embodiment of the application discloses a high-strength prestressed concrete pipe pile foundation. Referring to fig. 2, a high strength prestressed concrete tubular pile foundation includes a plurality of tubular pile bodies 1 that are parallel to each other, and the tubular pile bodies 1 are high strength prestressed concrete tubular piles. The diapire of locating the foundation ditch is all inserted to the lower extreme of whole tubular pile body 1, and the upper end protrusion of tubular pile body 1 and the diapire of foundation ditch. Cushion cap 2 has been pour to the diapire of foundation ditch, and the upper end of whole tubular pile body 1 is all pour in cushion cap 2. Every tubular pile body 1 protrusion all is provided with fixedly in the lateral wall of foundation ditch diapire and is provided with reinforcement 3, and reinforcement 3 is located cushion cap 2. The contact area between the tubular pile body 1 and the bearing platform 2 can be increased by the reinforcing piece 3, so that the connection strength and the structural stability between the bearing platform 2 and the tubular pile body 1 are improved.

Referring to fig. 2 and 3, the reinforcing member 3 includes a fixing sleeve 31 and a plurality of reinforcing plates 32, and all the reinforcing plates 32 are sequentially arranged at intervals in the circumferential direction of the fixing sleeve 31. One end of each reinforcing plate 32 is connected to the outer side wall of the fixing sleeve 31, and the other end of each reinforcing plate 32 extends in the direction away from the fixing sleeve 31 in the wall thickness direction of the fixing sleeve 31. The side wall welded fastening of reinforcing plate 32 has many connecting reinforcement 321, and connecting reinforcement 321 can be with the framework of steel reinforcement welded fastening who is used for pouring cushion cap 2 to improve the joint strength of reinforcing plate 32 and cushion cap 2. The periphery wall of tubular pile body 1 is located to fixed sleeve 31 cover, and is provided with fixed subassembly 4 between fixed sleeve 31 and the tubular pile body 1, and fixed subassembly 4 has set gradually a plurality ofly along tubular pile body 1's circumference. All the fixing members 4 cooperate with each other to fix the fixing sleeve 31.

Referring to fig. 3, the fixing assembly 4 includes an abutment arc plate 41 and a drive screw 42, and the abutment arc plate 41 is located between the fixing sleeve 31 and the tube pile body 1. The axial direction of the driving screw 42 is arranged along the wall thickness direction of the fixing sleeve 31, one end of the driving screw 42 is rotatably connected with the abutting arc plate 41 through a bearing, and the other end of the driving screw 42 extends in the direction away from the tubular pile body 1 and penetrates through the fixing sleeve 31. One end of the driving screw 42 far away from the abutting arc plate 41 is in threaded connection with the fixed sleeve 31; the position of the abutting arc plate 41 can be adjusted by rotating the driving screw 42, so that the abutting arc plate 41 can move towards the tubular pile body 1, and the abutting arc plate 41 abuts against the peripheral wall of the tubular pile body 1 tightly to fix the fixing sleeve 31.

Referring to fig. 3, the guide rods 411 are welded and fixed to the contact arc plates 41, and the axial directions of the guide rods 411 are the same as the axial directions of the corresponding drive screws 42; one end of the guide rod 411 and the side wall welded fastening of one side of the pipe pile body 1 far away from the butt arc plate 41, and the other end of the guide rod 411 extends and sets in the direction far away from the pipe pile body 1. The inside wall that fixed sleeve 31 is close to every guide bar 411 direction all runs through and has seted up guiding hole 311, and the one end that butt arc board 41 was kept away from to every guide bar 411 all inserts and locates in the guiding hole 311 that corresponds, and every guide bar 411 all with the inside wall cooperation of sliding of the guiding hole 311 that corresponds to in the butt cooperation of butt arc board 41 with the butt of the periphery wall of tubular pile body 1.

Referring to fig. 3, a limiting block 412 is fixedly welded to the side wall of the abutting arc plate 41 far away from the guide rod 411; the periphery wall of the tubular pile body 1 is provided with a limiting ring groove 11. The upper end of the fixed sleeve 31 is provided with a positioning plate 312; when the fixing sleeve 31 is sleeved on the outer peripheral wall of the tubular pile body 1, the lower surface of the positioning plate 312 can abut against the upper end wall of the tubular pile body 1, and at this time, the limiting block 412 is aligned with the limiting ring groove 11; the driving screw 42 is rotated to insert the limiting block 412 into the limiting ring groove 11. The limiting block 412 is matched with the limiting ring groove 11, and can limit the fixing sleeve 31 to move along the axial direction of the tubular pile body 1, so that the stability of the connection of the fixing sleeve 31 and the tubular pile body 1 is improved.

Referring to fig. 3, the length direction of the positioning plate 312 is arranged along the radial direction of the fixing sleeve 31; the inner side wall of the fixing sleeve 31 near each end of the positioning plate 312 is provided with a positioning hole 313 in a penetrating manner, and each end of the positioning plate 312 is inserted into the corresponding positioning hole 313. The positioning plate 312 is matched with the positioning hole 313, and the positioning plate 312 is detachably connected with the fixing sleeve 31, so that the positioning plate 312 is convenient to detach.

Referring to fig. 3 and 4, the end of the reinforcing plate 32 close to the fixing sleeve 31 is fixedly welded with the mounting block 5; the fixing sleeve 31 is provided with a mounting groove 314 at the peripheral wall of each reinforcing plate 32, and each mounting block 5 can be inserted into the corresponding mounting groove 314, so that the reinforcing plates 32 are connected with the fixing sleeve 31. The mounting block 5 is provided with a fixing hole 51 along the width direction of the reinforcing plate 32, and the fixing hole 51 is located on one side wall of the mounting block 5 along the width direction of the reinforcing plate 32. The fixing rod 511 is slidably connected to the inner side wall of the fixing hole 51, the slot 3141 is formed in the inner side wall of the mounting groove 314, and after the mounting block 5 is inserted into the mounting groove 314, the fixing rod 511 can be aligned to the slot 3141. An elastic piece 52 is arranged between the fixing rod 511 and the mounting block 5, and the elastic piece 52 is a spring; the elastic member 52 is positioned in the fixing hole 51, one end of the elastic member 52 abuts against the bottom wall of the fixing hole 51, and the other end of the elastic member 52 abuts against the end wall of the fixing rod 511. The resilient member 52 is in a compressed state; when the fixing lever 511 is aligned with the slot 3141, the elastic member 52 may drive the fixing lever 511 to automatically move toward the slot 3141, so that one end of the fixing lever 511 close to the slot 3141 is inserted into the slot 3141, thereby restricting the movement of the mounting block 5.

Referring to fig. 4, a guide surface 5111 is formed at one end of the fixing rod 511, which is engaged with the slot 3141, the guide surface 5111 is located on a side wall of the fixing rod 511, which is far away from the reinforcing plate 32, and the guide surface 5111 is obliquely formed. In the process that the installation block 5 is inserted into the installation groove 314, the guide surface 5111 can abut against the outer peripheral wall of the fixing sleeve 31, at this time, the installation block 5 is continuously moved, and under the action of the guide surface 5111, the fixing rod 511 can automatically retract into the fixing hole 51, so that the installation block 5 is continuously moved into the installation groove 314. The fixing rod 511 does not need to be pulled by hands, and the operation is simple and convenient.

The implementation principle of the high-strength prestressed concrete pipe pile foundation in the embodiment of the application is as follows:

when the tubular pile foundation is constructed, firstly, inserting one end of all tubular pile bodies 1 into the bottom wall of a foundation pit, and enabling the upper ends of the tubular pile bodies 1 to protrude out of the bottom wall of the foundation pit; then, the constructor sleeves the fixing sleeve 31 towards the outer peripheral wall of the tubular pile body 1; when the positioning plate 312 abuts against the upper end wall of the tubular pile body 1, the driving screw 42 is rotated to drive the abutting arc plate 41 to abut against the outer peripheral wall of the tubular pile body 1, so that the fixing sleeve 31 is fixedly connected with the tubular pile body 1; finally, the positioning plate 312 is detached, then the steel reinforcement framework is bundled, and the bearing platform 2 is poured.

All the fixing sleeves 31 and the reinforcing plates 32 are poured in the bearing platform 2, so that the connection strength of the bearing platform 2 and the tubular pile body 1 is improved, the length of the tubular pile body 1 embedded in the bearing platform 2 is reduced, the thickness of the bearing platform 2 can be reduced, and the construction cost is reduced.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A high-strength prestressed concrete tubular pile foundation comprises a plurality of tubular pile bodies (1) and a bearing platform (2) which is connected with the upper ends of all the tubular pile bodies (1) together; the method is characterized in that: the upper end of each tubular pile body (1) is provided with a reinforcing piece (3); the reinforcing piece (3) comprises a fixing sleeve (31) sleeved on the outer peripheral wall of the tubular pile body (1) and a plurality of reinforcing plates (32) connected with the outer side wall of the fixing sleeve (31), and all the reinforcing plates (32) are sequentially arranged along the circumferential direction of the fixing sleeve (31); a fixing component (4) used for fixing the fixing sleeve (31) is arranged between the fixing sleeve (31) and the tubular pile body (1).

2. The high-strength prestressed concrete pipe pile foundation of claim 1, wherein: the fixing component (4) comprises an abutting arc plate (41) positioned between the fixing sleeve (31) and the tubular pile body (1) and a driving screw rod (42) in threaded connection with the fixing sleeve (31); the axial direction of the driving screw rod (42) is arranged along the wall thickness direction of the fixed sleeve (31); one end of the driving screw rod (42) close to the tubular pile body (1) is rotatably connected with the abutting arc plate (41).

3. The high strength prestressed concrete pipe pile foundation of claim 2, wherein: the fixed guide bar (411) that extends to the direction of keeping away from tubular pile body (1) along the axial of drive screw (42) that is provided with in butt arc board (41), fixed sleeve (31) run through be provided with can with guide bar (411) complex guiding hole (311) that slides.

4. A high strength prestressed concrete pipe pile foundation according to claim 3, characterized in that: the butt arc plate (41) is fixedly provided with a limiting block (412), and the tubular pile body (1) is provided with a limiting ring groove (11) which can be embedded by the limiting block (412) along the circumferential direction of the tubular pile body.

5. The high-strength prestressed concrete pipe pile foundation of claim 4, wherein: fixed sleeve (31) are fixed be provided with can with locating plate (312) of the upper end wall butt of tubular pile body (1), locating plate (312) can be dismantled with fixed sleeve (31) and be connected.

6. The high-strength prestressed concrete pipe pile foundation of claim 1, wherein: the reinforcing plate (32) is close to one end of the fixing sleeve (31) and is fixedly provided with an installation block (5), and the fixing sleeve (31) is provided with an installation groove (314) which can be in plug-in fit with the installation block (5).

7. The high-strength prestressed concrete pipe pile foundation of claim 6, wherein: the mounting block (5) is provided with a fixing rod (511) in a sliding manner along the width direction of the reinforcing plate (32), and the fixing sleeve (31) is provided with a slot (3141) for inserting one end of the fixing rod (511); an elastic piece (52) capable of driving the fixing rod (511) to move towards the direction of the slot (3141) is arranged between the fixing rod (511) and the mounting block (5).

8. The high strength prestressed concrete pipe pile foundation of claim 7, wherein: one end of the fixing rod (511) close to the slot (3141) is obliquely provided with a guide surface (5111) which can be abutted against the peripheral wall of the fixing sleeve (31).