CN218643346U

CN218643346U - Cast-in-situ bored pile used in soft foundation environment

Info

Publication number: CN218643346U
Application number: CN202223007236.7U
Authority: CN
Inventors: 冯孟浩; 侯培俊; 赵晓杰
Original assignee: Henan Jindi Geotechnical Engineering Co ltd
Current assignee: Henan Jindi Geotechnical Engineering Co ltd
Priority date: 2022-11-11
Filing date: 2022-11-11
Publication date: 2023-03-17
Anticipated expiration: 2032-11-11

Abstract

A drilling bored concrete pile for under the weak foundation environment has solved and has adopted parts such as brace rod fixed barrel to cause the barrel unstable, and the unable problem of guaranteeing of both concentricity. The pile comprises a pile body, a cylinder body and a reinforcement cage, wherein a plurality of elastic attaching branches are fixed on the side wall of the cylinder body; the outer side of the fixed clamping device can move to be in contact with the steel reinforcement cage to form a structure for fixing the fixed clamping device; the lower end of the fixed clamping device is placed in the barrel, and the outer side of the lower end of the fixed clamping device moves to be in contact with the barrel to form a structure for fixing the barrel.

Description

Cast-in-situ bored pile used in soft foundation environment

Technical Field

The utility model relates to a civil engineering technical field especially relates to a bored concrete pile for under soft foundation environment.

Background

The bored concrete pile is directly provided with holes on the related pile positions, the cross section of the bored concrete pile is circular, and a reinforcement cage is additionally arranged in the holes after the holes are formed. It is made up by pouring concrete, and is used for urban building.

For some soft foundations, the binding force between the pile body and the surrounding soil body needs to be increased, and the friction resistance between the surrounding soil and the pile body needs to be increased, so that the safety performance of the cast-in-place pile used on the soft foundations is improved.

Application number is 201820561925.7, the name is a drilling bored concrete pile for under soft foundation environment, it attaches the branch through a plurality of elasticity, elasticity attaches branch one end and barrel fixed connection, the other end inserts in the soil body, increase its combining ability, when using, through brace rod and supporting shoe etc. with steel reinforcement cage and barrel together fixed, the barrel is similar to a state of hanging this moment, it is very unstable, can appear rocking the condition such as, and the concentricity between unable fine assurance steel reinforcement cage and the barrel.

SUMMERY OF THE UTILITY MODEL

To the above situation, for overcoming prior art's defect, the utility model provides a bored concrete pile for under soft foundation environment, the effectual fixed barrel of parts such as adoption brace rod that has solved causes the barrel unstable, and the problem that both concentricity can't be guaranteed.

In order to achieve the above purpose, the technical scheme of the utility model is that: the cast-in-situ bored pile used in the soft foundation environment comprises a pile body, a cylinder body and a reinforcement cage, wherein a plurality of elastic attaching branches are fixed on the side wall of the cylinder body;

the outer side of the fixed clamping device can move to be in contact with the steel reinforcement cage to form a structure for fixing the fixed clamping device;

the lower end of the fixed clamping device is placed in the barrel, and the outer side of the lower end of the fixed clamping device moves to be in contact with the barrel to form a structure for fixing the barrel;

the fixed clamping device comprises a support frame, a vertically sliding sleeve is arranged below the support frame, a plurality of arc-shaped first clamping blocks which horizontally slide are evenly distributed on the circumference of the outer side of the sleeve, and the first clamping blocks can be contacted with the inner wall of the barrel body in an outward sliding mode.

Preferably, the lower end of the sleeve is rotatably provided with a first disc, the outer side of the first disc is hinged with a first connecting rod, and the outer side of the first connecting rod is hinged and fixed with the first clamping block.

Preferably, the outer end of the sleeve is fixed with a plurality of guide rails, a T-shaped block is slidably arranged in the guide rails, and the lower end of the T-shaped block penetrates through the guide rails and is fixedly connected with the first clamping block.

Preferably, the lower end of the support frame is rotatably provided with a threaded rod, and the lower end of the threaded rod is in threaded connection with the sleeve.

Preferably, a guide rod is fixed at the upper end of the sleeve, and the upper end of the guide rod can slidably penetrate through the support frame.

Preferably, a rotating rod is fixed at the upper end of the first disc, and the upper end of the rotating rod penetrates through the sleeve, the threaded rod and the support frame and is arranged above the support frame;

and the support frame is provided with a locking device which is a structure for fixing the rotating rod.

Preferably, the locking device comprises two arc-shaped clamping rings, one ends of the clamping rings are hinged and fixed with the supporting frame, the other ends of the two clamping rings are fixedly connected through a stud bolt, and the thread turning directions of the two sides of the stud bolt are opposite.

Preferably, a second disc is rotatably arranged at the upper end of the supporting frame;

a plurality of second clamping blocks which horizontally slide are uniformly distributed on the outer circumference of the supporting frame, a plurality of second connecting rods are hinged to the edge of the second disc, and the other ends of the second connecting rods are hinged and fixed with the second clamping blocks.

Preferably, a plurality of guide sliding rails are fixed on the outer circumference of the supporting frame, a guide block is slidably arranged in each guide sliding rail, and the upper end of each guide block penetrates through each guide sliding rail and is fixedly connected with the second clamping block.

Preferably, the upper end of the second disc is in threaded connection with a set screw, and the set screw is in pressing contact with the support frame to form a structure for fixing the second disc.

Compared with the prior art, the utility model has the following benefit: 1) The sleeve can be vertically lifted, and the fixed position of the cylinder body can be adjusted according to requirements; 2) The first clamping block and the second clamping block are coaxial, so that the coaxiality of the reinforcement cage and the cylinder can be ensured; 3) The setting of first grip block 3, the fixed stability of assurance barrel that can be better.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the overall axial structure of the present invention;

FIG. 3 is a schematic view of the structure of the present invention for lifting the sleeve and sliding the first clamping block outward;

FIG. 4 is a schematic view of the locking device of the present invention;

in the figure: 1. a support frame; 2. a sleeve; 3. a first clamping block; 4. a first disc; 5. a first link; 6. a guide rail; 7. A threaded rod; 8. a guide rod; 9. rotating the rod; 10. a clamp ring; 11. a stud bolt; 12. a second disc; 13. a second clamping block; 14. a second link; 15. a guide slide rail; 16. and (6) tightening the screw.

Detailed Description

The present invention will now be described in further detail with reference to the accompanying drawings. The attached drawings are simplified schematic diagrams and illustrate only the basic structure of the present invention in a schematic manner, and therefore, they show only the constitution related to the present invention.

Referring to fig. 1-4, the technical solution of the present invention is: the cast-in-situ bored pile used in the soft foundation environment comprises a pile body, a cylinder body and a reinforcement cage, wherein a plurality of elastic attaching branches are fixed on the side wall of the cylinder body;

fixed clamping device includes support frame 1, and 1 below of support frame is equipped with vertical

gliding sleeve pipe

2, and 2 outside circumference equipartitions of sleeve pipe have the first grip block 3 of a plurality of horizontal slip's arc, and the outside slip of first grip block 3 can contact with the barrel inner wall.

In the utility model, the pile body, the cylinder body, the reinforcement cage and the elastic attached branches are all the prior art, the application number is 201820561925.7, the name is related technology used in the cast-in-situ bored pile under the soft foundation environment, a ring is fixed on the reinforcement cage, the inner side of the ring is provided with an annular gap, one part of the outer side of the fixed clamping device is clamped into the annular gap and is in extrusion contact with the outermost side of the gap, and the lowest end of the fixed clamping device is close to the outer side of the gap, so that the fixed clamping device and the reinforcement cage are fixed together;

in a similar way, an annular groove is formed in the inner side of the barrel, the lower end of the fixing and clamping device extends into the barrel, and the lower end of the fixing and clamping device moves outwards to be in extrusion contact with the annular groove of the barrel, so that the barrel is fixed.

The vertical position of the sleeve 2 can be adjusted, so that the corresponding position of the cylinder body can be conveniently adjusted, and the position of the cylinder body can be fixed as required.

A plurality of first grip blocks 3 slide to the direction of keeping away from 1 axle center of support frame in step, thereby make 3 card of first grip block go into annular inslot, 3 lateral surfaces of first grip block and annular groove extrusion contact, the up end contact in 3 up end of first grip block and annular groove, like this, there are two sets of fixed modes, one is that the extrusion is fixed according to the frictional force, the second is exactly that a holding power is fixed, can guarantee better fixed mode like this, make the barrel can not appear rocking, and can guarantee the axiality of steel reinforcement cage and barrel two.

The lower end of the sleeve 2 is rotatably provided with a first disc 4, the outer side of the first disc 4 is hinged with a first connecting rod 5, and the outer side of the first connecting rod 5 is hinged and fixed with the first clamping block 3.

The utility model discloses in, first connecting rod 5 articulates in the edge of first disc 4, thereby drives a plurality of first grip blocks 3 through the rotation of first disc 4 and moves, accomplishes the fixed to the barrel.

The outer end of the sleeve 2 is fixed with a plurality of guide rails 6, a T-shaped block is slidably arranged in the guide rails 6, and the lower end of the T-shaped block penetrates through the guide rails 6 and is fixedly connected with the first clamping block 3.

Through the cooperation of guided way 6 and T type piece to realize the horizontal slip effect of first grip block 3.

The lower end of the support frame 1 is rotatably provided with a threaded rod 7, and the lower end of the threaded rod 7 is in threaded connection with the sleeve 2.

Thereby drive sleeve pipe 2 through the rotation of threaded rod 7 and carry out vertical slip, and threaded connection has fine auto-lock effect, has guaranteed the stability in sleeve pipe 2 position.

The upper end of the sleeve 2 is fixed with a guide rod 8, and the upper end of the guide rod 8 can slidably penetrate through the support frame 1.

Be provided with the end cap in the upper end of guide bar 8, the separation of threaded connection between threaded rod 7 and the sleeve pipe 2 can effectively be avoided in the setting of end cap, avoids maloperation to cause the breaking away from that threaded rod 7 and sleeve pipe 2 are connected.

A rotating rod 9 is fixed at the upper end of the first disc 4, and the upper end of the rotating rod 9 penetrates through the sleeve 2, the threaded rod 7 and the support frame 1 and is arranged above the support frame 1;

and a locking device is arranged on the support frame 1 and is a structure for fixing the rotating rod 9.

Threaded rod 7 and sleeve pipe 2 all are hollow structure, and dwang 9 passes threaded rod 7 and sleeve pipe 2, and arranges 1 top of support frame in, is provided with locking device on support frame 1, fixes dwang 9 through locking device, accomplishes the fixed of first disc 4, and the setting of dwang 9 conveniently operates first disc 4 and rotates.

The locking device comprises two arc-shaped clamping rings 10, one ends of the clamping rings 10 are hinged and fixed with the support frame 1, the other ends of the two clamping rings 10 are fixedly connected through a stud bolt 11, and the thread turning directions of the two sides of the stud bolt 11 are opposite.

The inboard and the dwang 9 extrusion contact of grip ring 10 to fix the dwang 9, the screw thread of stud 11 both sides is turned to opposite, can drive two grip rings 10 like this when rotating stud 11 and keep away from or be close to each other, accomplishes the fixed of dwang 9.

A second disc 12 is rotatably arranged at the upper end of the support frame 1;

a plurality of second clamping blocks 13 which horizontally slide are uniformly distributed on the outer circumference of the supporting frame 1, a plurality of second connecting rods 14 are hinged to the edge of the second disc 12, and the other ends of the second connecting rods 14 are hinged and fixed with the second clamping blocks 13.

A plurality of guide slide rails 15 are fixed on the outer circumference of the support frame 1, a guide block is slidably arranged in the guide slide rails 15, and the upper end of the guide block penetrates through the guide slide rails 15 and is fixedly connected with the second clamping block 13.

The upper end of the second disc 12 is connected with a set screw 16 in a threaded manner, and the set screw 16 is in pressing contact with the support frame 1 to form a structure for fixing the second disc 12.

The clamping and fixing manner of the second clamping block 13 and the reinforcement cage is somewhat similar to that of the first clamping block 3, so that the description is omitted here, and only the second disc 12 is annular, and the fixing of the second disc 12 is completed by means of the set screw 16.

The utility model discloses when making used, second grip block 13 accomplishes with steel reinforcement cage's fixed, first grip block 3 accomplish with the fixed of barrel, like this can be fine with steel reinforcement cage and barrel together fixed, guarantee axiality and stability between them.

The examples are given solely for the purpose of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications can be made without departing from the scope of the invention.

Claims

1. The cast-in-situ bored pile used in the soft foundation environment comprises a pile body, a cylinder body and a reinforcement cage, wherein a plurality of elastic attaching branches are fixed on the side wall of the cylinder body;

the device is characterized by also comprising a fixed clamping device, wherein the fixed clamping device is placed in the reinforcement cage, and the outer side of the fixed clamping device can move to be in contact with the reinforcement cage to form a structure for fixing the fixed clamping device;

fixed clamping device includes support frame (1), and support frame (1) below is equipped with vertical gliding sleeve pipe (2), and sleeve pipe (2) outside circumference equipartition has the first grip block of a plurality of horizontal slip's arc (3), and first grip block (3) outside slip can contact with the barrel inner wall.

2. The cast-in-situ pile for the soft foundation environment as claimed in claim 1, wherein the lower end of the casing (2) is rotatably provided with a first disc (4), a first connecting rod (5) is hinged to the outer side of the first disc (4), and the outer side of the first connecting rod (5) is hinged and fixed with the first clamping block (3).

3. The cast-in-situ pile for soft foundation environment according to claim 1, wherein a plurality of guide rails (6) are fixed at the outer end of the casing (2), a T-shaped block is slidably arranged in the guide rails (6), and the lower end of the T-shaped block penetrates through the guide rails (6) and is fixedly connected with the first clamping block (3).

4. The cast-in-situ pile for the soft foundation environment as claimed in claim 1, wherein the lower end of the supporting frame (1) is rotatably provided with a threaded rod (7), and the lower end of the threaded rod (7) is in threaded connection with the sleeve (2).

5. The cast-in-situ pile for soft foundation environment as claimed in claim 1, wherein the upper end of the casing (2) is fixed with a guide rod (8), and the upper end of the guide rod (8) can slidably penetrate through the supporting frame (1).

6. The cast-in-situ pile for the soft foundation environment according to claim 2, wherein a rotating rod (9) is fixed to the upper end of the first disc (4), and the upper end of the rotating rod (9) penetrates through the sleeve (2), the threaded rod (7) and the support frame (1) and is arranged above the support frame (1);

and a locking device is arranged on the support frame (1), and the locking device is a structure for fixing the rotating rod (9).

7. A bored pile for use in soft foundation environments according to claim 6, wherein said locking means comprises two arc-shaped clamp rings (10), one end of each clamp ring (10) is fixed to the support frame (1) in an articulated manner, the other ends of the two clamp rings (10) are fixedly connected by means of a stud (11), and the thread directions of the two sides of the stud (11) are opposite.

8. A bored pile for soft foundation environments according to claim 1, wherein a second disc (12) is rotatably provided at the upper end of the supporting frame (1);

a plurality of second clamping blocks (13) which horizontally slide are uniformly distributed on the outer circumference of the support frame (1), a plurality of second connecting rods (14) are hinged to the edge of the second disc (12), and the other ends of the second connecting rods (14) are hinged and fixed with the second clamping blocks (13).

9. The cast-in-situ pile for soft foundation environment according to claim 8, wherein a plurality of guide rails (15) are fixed on the outer circumference of the supporting frame (1), guide blocks are slidably arranged in the guide rails (15), and the upper ends of the guide blocks penetrate through the guide rails (15) and are fixedly connected with the second clamping blocks (13).

10. The cast-in-situ pile for soft foundation environment as claimed in claim 8, wherein the upper end of the second disc (12) is connected with a set screw (16) in a threaded manner, and the set screw (16) is in pressing contact with the supporting frame (1) to form a structure for fixing the second disc (12).