CN215948178U

CN215948178U - Pile body defect part reinforcing structure of large-diameter cast-in-place pile

Info

Publication number: CN215948178U
Application number: CN202122298396.0U
Authority: CN
Inventors: 冷钢; 何超; 李锡银; 杨傲; 毛卓能
Original assignee: Wuhan Wujian Machinery Construction Co ltd
Current assignee: Wuhan Wujian Machinery Construction Co ltd
Priority date: 2021-09-22
Filing date: 2021-09-22
Publication date: 2022-03-04
Anticipated expiration: 2031-09-22

Abstract

The utility model relates to a major diameter bored concrete pile body defect position reinforcement structure relates to the field of bored concrete pile, and it includes the pile body, the pile body is provided with a plurality of reinforcement holes, outer reaming has been seted up to reinforcement hole bottom, the downthehole anchor bolt that has pegged graft of reinforcement, the removable screw thread post that is provided with in stock bottom, the anchor bolt in the screw thread post top is slided and is provided with the driving cylinder, the driving cylinder articulates there is a plurality of first expander rods, the other end of first expander rod articulates there is the second expander rod, the second expander rod other end with the screw thread post is articulated, first expander rod and the second expander rod is located in the outer reaming, the anchor bolt is provided with and is used for the drive the driving piece of driving cylinder motion. This application has the loading strength who promotes bored concrete pile defect section, and the threaded column is convenient for install and circulated use, realizes energy-concerving and environment-protective effect.

Description

Pile body defect part reinforcing structure of large-diameter cast-in-place pile

Technical Field

The application relates to the field of cast-in-place piles, in particular to a pile body defect part reinforcing structure of a large-diameter cast-in-place pile.

Background

Since the last 60 th century, the cast-in-place pile is used for foundation engineering, along with the continuous development of economy and civil engineering, the cast-in-place pile is widely applied to the fields of buildings, bridges and water conservancy, along with the continuous construction of super high-rise buildings, high-grade bridges and super-huge type hydro hubs, the size of the cast-in-place pile is continuously increased, the size of the super-large type cast-in-place pile reaches more than 2.5m, pile foundation engineering is concealed engineering, the working procedures are more, the influence of underground complex environment is larger, the pre-control is difficult, and pile foundation quality accidents, such as pile bottom sediment, segregation, pile breakage, mud clamping, hole shrinkage and the like, inevitably occur.

The existing Chinese patent with the patent application number of CN201921966112.7 provides a grouting reinforcement structure for a defective cast-in-place pile, which is used for grouting reinforcement of a defective section of a cast-in-place pile body and pile bottom sediment respectively, and comprises a pile body reinforcement body, a pile periphery reinforcement body and a pile end grouting expansion body. The pile body reinforcing body is positioned at the defective section of the cast-in-place pile and is formed by grouting and reinforcing through the reinforcing hole; the pile circumference strengthening body comprises a pile circumference swinging spraying body and a pile circumference rotary spraying body, the pile circumference swinging spraying body is positioned at the pile circumference of the non-defect part of the cast-in-place pile, and the pile circumference rotary spraying body is positioned at the pile circumference of the defect section of the cast-in-place pile and is formed by alternately rotary swinging spraying through a plurality of grouting holes; the pile end grouting enlarged body is positioned at the pile bottom sediment and is formed by grouting through the pile body reinforcing hole and the pile periphery grouting hole.

Aiming at the related technologies, the inventor thinks that the defect end of the cast-in-place pile is repaired through reinforcement hole grouting reinforcement, the connection strength between the reinforcement hole grouting and the original cast-in-place pile is insufficient, and the defect that the load strength of the cast-in-place pile is insufficient exists.

SUMMERY OF THE UTILITY MODEL

In order to improve the not enough problem of bored concrete pile defect section load strength, this application provides a major diameter bored concrete pile body defect position reinforcement structure.

The application provides a pair of major diameter bored concrete pile body defect position reinforcement structure adopts following technical scheme:

the utility model provides a major diameter bored concrete pile body defect position reinforcement structure, includes the pile body, the pile body is provided with a plurality of reinforcement holes, outer reaming has been seted up to reinforcement hole bottom, the downthehole anchor rod that has pegged graft of reinforcement, the removable screw thread post that is provided with in anchor rod bottom, the anchor rod in it is provided with the driving cylinder to slide above the screw thread post, the driving cylinder articulates there is a plurality of first expansion arms, the other end of first expansion arm articulates there is the second expansion arm, the second expansion arm other end with the screw thread post is articulated, first expansion arm and the second expansion arm is located in the outer reaming, the anchor rod is provided with and is used for the drive the driving piece of driving cylinder motion.

Through adopting above-mentioned technical scheme, it is downthehole to insert the reinforcement with the stock, first expander bar and second expander bar and stock laminating, first expander bar and second expander bar enter into outer expanding downthehole back, make driving cylinder downstream towards through the driving piece, first expander bar and second expander bar towards outside reaming lateral wall motion, realize the anchor effect between stock and the outer expanding hole, towards the downthehole concrete that pours into of reinforcement again, the completion carries out the effect repaired to the defect end.

Optionally, the driving element is set to be a steel cylinder, the steel cylinder is sleeved outside the anchor rod, and the bottom of the steel cylinder is abutted to the upper end of the driving cylinder.

Through adopting above-mentioned technical scheme, outside the stock was located to the steel cylinder sleeve, and applied an effort towards the downstream to the driving cylinder, the driving cylinder downstream in-process is applied the effort of expanding outwards to first expander bar, and then drives the second expander bar and moves outwards, realizes the effect of expanding outwards of first expander bar and second expander bar.

Optionally, the driving cylinder and a plurality of turning blocks of the equal fixedly connected with of screw thread post outer wall, first expander rod and the second expander rod all is provided with rotates the hole, turning block both sides wall all is provided with the through-hole, the turning block in wear to be equipped with in the through-hole and be used for passing rotate the screw in hole, the other end threaded connection of screw has the nut.

Through adopting above-mentioned technical scheme, under the effect of nut and screw head, realize the fixed effect of screw and turning block, first expander rod and second expander rod take place to rotate around expanding, and then realize the mutual articulated effect of first expander rod and second expander rod.

Optionally, the first expanding rod is far away from the one end of rotating the hole is provided with the recess, the perforation has all been seted up to recess both sides wall, the second expanding rod is far away from the one end fixedly connected with lug in rotating the hole, the lug is provided with the through hole, first expanding rod in the perforation and wear to be equipped with the counter-pull screw rod in the through hole, the equal threaded connection in both ends of counter-pull screw rod has the nut.

Through adopting above-mentioned technical scheme, with two nuts respectively with the both ends threaded connection of split screw, realize the fixed effect of split screw and first expander rod, the second expander rod takes place to rotate for the axis around split screw, realizes the rotation effect between first expander rod and the second expander rod.

Optionally, the stock bottom is slided the cover and is equipped with the thread bush, the thread bush with screw thread post threaded connection, the thread bush with be provided with the joint subassembly between the stock.

Through adopting above-mentioned technical scheme, thread bush and screw thread post threaded connection realize the joint effect between thread bush and the stock under the effect of joint subassembly, and then accomplish fixed effect between screw thread post and the stock.

Optionally, the joint subassembly includes joint ring and butt dish, the joint ring with the thread bush is kept away from in the one end fixed connection of screw thread post, the butt dish with the stock is close to in the one end fixed connection of screw thread post, the butt dish with joint ring butt.

Through adopting above-mentioned technical scheme, when joint ring motion to the butt joint dish position, under the effect of dragging between thread bush and screw thread post threaded connection and butt joint dish and the joint ring, accomplish the fixed effect between screw thread post and the stock.

Optionally, a plurality of sand grips of thread bush outer wall fixedly connected with, sand grip length direction is along thread bush axis sets up, and is a plurality of the equidistant distribution of sand grip in the thread bush outer wall.

Through adopting above-mentioned technical scheme, the sand grip is used for increasing the frictional force of thread bush, and then is convenient for realize the drive effect to the thread bush.

Optionally, the clamping ring is fixedly connected with a rubber pad abutted against the abutting disk.

Through adopting above-mentioned technical scheme, the rubber pad is used for reducing the degree of wear that butt joint dish and joint ring collision produced.

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

1. inserting the anchor rod into the reinforcing hole, attaching the first expanding rod and the second expanding rod to the anchor rod, enabling the driving cylinder to move downwards through the driving piece after the first expanding rod and the second expanding rod enter the outer expanding hole, and enabling the first expanding rod and the second expanding rod to move towards the outer expanding hole side wall, so that the anchoring effect between the anchor rod and the outer expanding hole is realized;

2. when the joint ring moves to the position of the butt joint disc, under the action of dragging between the thread bushing and the thread column threaded connection and between the butt joint disc and the joint ring, the fixing effect between the thread column and the anchor rod is completed, and the detachable effect between the thread column and the anchor rod is realized.

Drawings

FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present application;

FIG. 2 is a schematic view of an anchor rod, a first spreader bar, a second spreader bar and a drive cylinder in an embodiment of the present application;

fig. 3 is a partially enlarged schematic view of a portion a in fig. 1.

Reference numerals: 1. a pile body; 2. a reinforcement hole; 3. expanding the hole outwards; 4. an anchor rod; 5. a threaded post; 6. a drive cylinder; 7. a first spreader bar; 8. a second spreader bar; 9. a steel cylinder; 10. rotating the block; 11. rotating the hole; 12. a screw; 13. a nut; 14. a groove; 15. a bump; 16. oppositely pulling the screw rod; 17. a nut; 18. a threaded sleeve; 19. a snap ring; 20. a butting tray; 21. and (4) raised strips.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses major diameter bored concrete pile body defect position reinforcement structure. Referring to fig. 1, a major diameter bored concrete pile body defect position reinforcement structure includes pile body 1, pile body 1 is provided with a plurality of reinforcement holes 2, adopt at 1 head of pile body to get core equipment and carry out opening to pile body defect part formation reinforcement hole 2, and adopt high-pressure clear water or powdered ore solution to wash defect part, outer reaming 3 has been seted up to reinforcement hole 2 bottom, the aperture in outer reaming 3 is greater than the space in reinforcement hole 2, the interpolation in reinforcement hole 2 has

stock

4, 4 removable threaded post 5 that are provided with in stock bottom.

Referring to fig. 1 and 2, in order to realize more stable anchoring between the anchor rod 4 and the outer reamed hole 3, the anchor rod 4 is provided with a driving cylinder 6 in a sliding manner above the threaded column 5, the driving cylinder 6 is hinged with a plurality of first expanding rods 7, the other end of each first expanding rod 7 is hinged with a second expanding rod 8, the other end of each second expanding rod 8 is hinged with the threaded column 5, and the first expanding rods 7 and the second expanding rods 8 are positioned in the outer reamed holes 3; the equal a plurality of turning blocks 10 of fixedly connected with of

drive cylinder

6 and 5 outer walls of screw thread post, turning block 10 sets up to the type of calligraphy of concave, the both sides wall of turning block 10 all is provided with the through-hole, the one end of first expander rod 7 and second expander rod 8 all is provided with rotation hole 11, turning block 10 wears to be equipped with screw 12 in the through-hole, screw 12 passes rotation hole 11, the axis direction of screw 12 is the level setting, the axis direction of screw 12 is perpendicular setting with the axis direction of stock 4, the head of screw 12 and the 10 lateral walls butt of turning block, other end threaded connection has nut 13, realize the fixed effect of screw 12 and turning block 10, realize the articulated effect of first expander rod 7 and drive cylinder 6 and second expander rod 8 and screw thread post 5.

The one end that first expander rod 7 kept away from and rotated hole 11 is provided with recess 14, the perforation has all been seted up to recess 14 both sides wall, second expander rod 8 is kept away from in the one end fixedly connected with lug 15 of rotating hole 11, lug 15 is provided with the through-hole, first expander rod 7 wears to be equipped with diagonal rod 16 in perforation and through-hole, the axis direction of diagonal rod 16 is the level setting and with screw 12's axis direction parallel arrangement, the equal threaded connection of tip that diagonal rod 16 passed recess 14 both sides wall has nut 17, at the locking effect of nut 17, realize the fixed effect to diagonal rod 16 and first expander rod 7, lug 15 uses diagonal rod 16 to take place to rotate as the axle, realize the articulated effect of first expander rod 7 and second expander rod 8.

The first expanding rod 7 and the second expanding rod 8 are attached to the anchor rod 4, the first expanding rod 7 and the second expanding rod 8 are placed into the outer expanding hole 3, in order to achieve the driving effect on the driving barrel 6, the anchor rod 4 is provided with a driving piece for pushing the driving barrel 6 to move, the driving piece is arranged to be a steel barrel 9, the steel barrel 9 is sleeved outside the anchor rod 4, and the bottom of the steel barrel 9 is abutted to the upper end of the driving barrel 6; when acting force of downward movement is applied to the steel cylinder 9, the driving cylinder 6 moves downward, the first expanding rod 7 drives the second expanding rod 8 to move outward, and when the first expanding rod 7 and the second expanding rod 8 move toward the side wall of the outward reaming 3, the anchoring effect on the anchor rod 4 is completed; after concrete is poured, the pulling resistance and tensile strength of the defect section are greatly improved.

Referring to fig. 1 and 3, the cover that slides in stock 4 bottom is equipped with thread bush 18,

thread bush

18 and 5 threaded connection of screw thread post, be provided with the joint subassembly between thread bush 18 and the stock 4, the joint subassembly includes joint ring 19 and butt dish 20, joint ring 19 keeps away from the one end fixed connection in screw thread post 5 with thread bush 18, butt dish 20 is close to the one end fixed connection in screw thread post 5 with

stock

4, 18 outer wall fixedly connected with of thread bush a plurality of sand grips 21, sand grip 21 length direction is along the axis direction of thread bush 18, a plurality of sand grips 21 equidistant distribution in 18 outer walls of thread bush, sand grip 21 is used for increasing the staff and makes the frictional force that the 18 rotation in-process of thread bush received, be convenient for exert the effort to thread bush 18.

The threaded sleeve 18 is driven to be in threaded connection with the threaded column 5, the threaded sleeve 18 drives the clamping ring 19 to slide on the anchor rod 4, when the clamping ring 19 moves to the position of the abutting disc 20, under the effects of threaded connection between the threaded sleeve 18 and the threaded column 5 and dragging between the abutting disc 20 and the clamping ring 19, the fixing effect between the threaded column 5 and the anchor rod 4 is achieved, the detachable effect between the threaded column 5 and the anchor rod 4 is achieved, when the abutting disc 20 abuts against the clamping ring 19, the threaded sleeve 18 does not abut against the rotating block 10, and the hinging effect of the second expansion rod 8 and the threaded column 5 is guaranteed; the clamping ring 19 is fixedly connected with a rubber pad, the rubber pad is located on the side wall of the clamping ring 19 facing the abutting disc 20, and the rubber pad abuts against the abutting disc 20 and is used for reducing the abrasion degree between the clamping ring 19 and the abutting disc 20.

The implementation principle of major diameter bored concrete pile body defect position reinforcement structure of this application embodiment does: the threaded sleeve 18 is connected with the threaded column 5 in a threaded manner, and when the clamping ring 19 moves to a position abutting against the abutting disc 20, the fixing effect between the threaded column 5 and the anchor rod 4 is achieved; after 8 laminating stocks 4 with first expander rod 7 and second expander rod, drive stock 4 enters into outer reaming 3 in, locate stock 4 with 9 covers of steel cylinder outside, the steel cylinder 9 promotes 6 downstream towards of driving cylinder, and first expander rod 7 and second expander rod 8 realize stock 4 and the anchor effect of outer reaming 3 towards the motion of 3 lateral walls of outer reaming.

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. The utility model provides a major diameter bored concrete pile body defect position reinforcement structure which characterized in that: including pile body (1), pile body (1) is provided with a plurality of reinforcement holes (2), outer reaming (3) have been seted up to reinforcement hole (2) bottom, it has stock (4) to peg graft in reinforcement hole (2), stock (4) bottom is removable to be provided with screw thread post (5), stock (4) in screw thread post (5) top is slided and is provided with driving cylinder (6), driving cylinder (6) articulate has a plurality of first expander rods (7), the other end of first expander rod (7) articulates has second expander rod (8), second expander rod (8) other end with screw thread post (5) are articulated, first expander rod (7) and second expander rod (8) are located in outer reaming (3), stock (4) are provided with and are used for the drive the driving piece of driving cylinder (6) motion.

2. The pile body defect part reinforcing structure of the large-diameter cast-in-place pile according to claim 1, characterized in that: the driving piece is arranged as a steel cylinder (9), the steel cylinder (9) is sleeved outside the anchor rod (4), the bottom of the anchor rod is abutted against the upper end of the driving cylinder (6).

3. The pile body defect part reinforcing structure of the large-diameter cast-in-place pile according to claim 2, characterized in that: the drive cylinder (6) and the equal fixedly connected with a plurality of turning blocks (10) of screw thread post (5) outer wall, first expand pole (7) and second expand pole (8) all are provided with rotation hole (11), turning block (10) both sides wall all is provided with the through-hole, turning block (10) in wear to be equipped with in the through-hole and be used for passing screw (12) of rotation hole (11), the other end threaded connection of screw (12) has nut (13).

4. The pile body defect part reinforcing structure of the large-diameter cast-in-place pile according to claim 3, characterized in that: first expander rod (7) keep away from in the one end that rotates hole (11) is provided with recess (14), the perforation has all been seted up to recess (14) both sides wall, second expander rod (8) keep away from in the one end fixedly connected with lug (15) that rotates hole (11), lug (15) are provided with the through hole, first expander rod (7) are located the perforation and wear to be equipped with in the through hole to lag screw (16), there is nut (17) to the equal threaded connection in both ends of lag screw (16).

5. The pile body defect part reinforcing structure of the large-diameter cast-in-place pile according to claim 1, characterized in that: stock (4) bottom is slided and is equipped with thread bush (18), thread bush (18) with screw thread post (5) threaded connection, thread bush (18) with be provided with the joint subassembly between stock (4).

6. The pile body defect part reinforcing structure of the large-diameter cast-in-place pile according to claim 5, characterized in that: the joint subassembly includes joint ring (19) and butt dish (20), joint ring (19) with thread bush (18) keep away from in the one end fixed connection of screw thread post (5), butt dish (20) with stock (4) are close to in the one end fixed connection of screw thread post (5), butt dish (20) with joint ring (19) butt.

7. The pile body defect part reinforcing structure of the large-diameter cast-in-place pile according to claim 6, characterized in that: threaded sleeve (18) outer wall fixedly connected with a plurality of sand grips (21), sand grip (21) length direction is along threaded sleeve (18) axis sets up, and is a plurality of sand grip (21) equidistant distribution in threaded sleeve (18) outer wall.

8. The pile body defect part reinforcing structure of the large-diameter cast-in-place pile according to claim 7, characterized in that: the clamping ring (19) is fixedly connected with a rubber pad which is abutted against the abutting disc (20).