CN213571929U

CN213571929U - Pile foundation broken end structure

Info

Publication number: CN213571929U
Application number: CN202022398112.0U
Authority: CN
Inventors: 李骏; 周聪; 曾昭淑
Original assignee: Chongqing Traffic Engineering Supervision Consulting Co ltd
Current assignee: Chongqing Traffic Engineering Supervision Consulting Co ltd
Priority date: 2020-10-23
Filing date: 2020-10-23
Publication date: 2021-06-29
Anticipated expiration: 2030-10-23

Abstract

The utility model relates to a broken head structure of pile foundation, it includes that a plurality of sleeves that are used for the cover to establish on steel reinforcement cage top reinforcing bar, and sheathed tube top is provided with the sealing member that is used for sealing sleeve pipe open-top, and sheathed tube bottom is provided with and is used for the fixed subassembly of sleeve pipe and the intraductal reinforcing bar of cover. When transferring steel reinforcement cage to the foundation ditch in, fix the top of steel reinforcement cage subaerial, establish the sleeve pipe cover on the reinforcing bar of steel reinforcement cage bottom again to use fixed subassembly fixed with sheathed tube bottom and reinforcing bar, use the sealing member to seal sheathed tube top after filling the filler to the sleeve pipe, the sleeve pipe is separated reinforcing bar and concrete, concrete easily separates with the sleeve pipe when breaking out the pile head. This application has the efficiency of construction that improves broken stake, effectively prevents to cause the bending deformation's of reinforcing bar effect at broken stake in-process.

Description

Pile foundation broken end structure

Technical Field

The application relates to the field of pile foundation construction, in particular to a pile foundation head breaking structure.

Background

Deep foundations consisting of piles and pile caps (caps for short) connecting the tops of the piles or single-pile foundations consisting of columns and pile foundations, for short, pile foundations. When the pile is poured, the elevation of the pile top is 0.5-1.0 m higher than the designed elevation of the pile top so as to ensure the strength of the pile head concrete, but the part of the pile head higher than the designed elevation of the pile top needs to be chiseled off in the subsequent process construction, and the chiseling off of the part of the pile head concrete is called as 'broken pile head'.

In view of the above-mentioned related technologies, the inventor believes that the pile head is broken by directly using a pile breaking machine or a pile cutting machine in the conventional pile breaking method, and the steel bars and the concrete are firmly bonded, so that the separation is not easy, and the pile breaking work is time-consuming and labor-consuming.

SUMMERY OF THE UTILITY MODEL

In order to improve the efficiency of construction of broken stake, this application provides a broken head structure of pile foundation.

The application provides a broken head structure of pile foundation adopts following technical scheme:

the utility model provides a broken end structure of pile foundation, includes a plurality of sleeves that are used for the cover to establish on steel reinforcement cage top reinforcing bar, sheathed tube top is provided with the sealing member that is used for sealing sleeve pipe open-top, sheathed tube bottom is provided with and is used for the fixed subassembly of sleeve pipe and the intraductal reinforcing bar of cover.

Through adopting above-mentioned technical scheme, when transferring steel reinforcement cage to the foundation ditch in, fix the top of steel reinforcement cage subaerial, establish the sleeve pipe cover on the reinforcing bar of steel reinforcement cage bottom again, and use fixed subassembly fixed with sheathed tube bottom and reinforcing bar, use the sealing member to seal the sheathed tube top after filling the filler to the sleeve pipe in, the sleeve pipe is separated reinforcing bar and concrete, concrete is easy to separate with the sleeve pipe when breaking the pile head, thereby make broken stake work labour saving and time saving, and effectively prevent to cause the bending deformation of reinforcing bar at broken stake in-process.

Optionally, the sealing element is a cover plate, and a convex ring matched with the inner diameter of the sleeve is arranged on the bottom wall of the cover plate.

Through adopting above-mentioned technical scheme, pour into the filler in the sleeve pipe after, the opening at apron closed sleeve pipe top, the interior capping gomphosis of apron has improved sheathed tube seal nature in sheathed tube inner chamber, effectively prevents that the concrete from getting into in the sleeve pipe and contacting with the reinforcing bar.

Optionally, fixed subassembly includes first splint, second splint and screw rod, the parallel fixed connection of first splint and second splint is on the outer wall of sleeve pipe bottom, first splint and second splint are located sheathed tube both sides, set up the screw hole with screw rod looks adaptation on the first splint, all set up the perforation coaxial with the screw hole on the second splint, the screw rod passes the perforation and with screw hole threaded connection, the fixed guide bar that is provided with on the second splint, set up the guiding hole with the guide bar adaptation on the first splint, the guide bar slides and wears to establish in the guiding hole, the guide bar is parallel with the screw rod.

Through adopting above-mentioned technical scheme, rotate the screw rod, the screw rod orders about first splint and second splint and draws close mutually, and the guide bar plays the guide effect to first splint and second splint, prevents that the one side that the screw rod was kept away from to first splint and one side that the screw rod was kept away from to second splint from appearing the state of slope, and first splint and second splint draw close to press from both sides the sheathed tube bottom tightly to make sleeve pipe and reinforcing bar fixed, convenient operation.

Optionally, a sealing layer is arranged on the inner wall of the bottom of the sleeve, and a projection of the sealing layer on a vertical plane is located within a projection range of the first clamping plate on the vertical plane.

Through adopting above-mentioned technical scheme, first splint and second splint press from both sides the tight back of sheathed tube bottom, and the sealing layer is close to the laminating each other, and the gap department at the sheathed tube is filled to the sealing layer, has improved sheathed tube seal, effectively prevents that the filler from leaking from sheathed tube bottom.

Optionally, a support rod is radially arranged at the bottom of the sleeve along the bottom, one end of the support rod is fixedly connected with the bottom wall of the sleeve, and the other end of the support rod is far away from the sleeve.

Through adopting above-mentioned technical scheme, place first sleeve pipe, and with the branch on the sleeve pipe towards next sleeve pipe position, with the fixed back of sleeve pipe, place all the other sleeve pipes in proper order, and the fixed operation of repeated sleeve pipe, the sleeve pipe in proper order with adjacent sheathed tube branch butt, when placing last sleeve pipe, the sleeve pipe rotates, make branch at the in-process of sleeve pipe whereabouts not with first sleeve pipe butt, with the fixed back of last sleeve pipe, whole sheathed tube bottoms are located same water flat line, the workman need not manually adjust the sleeve pipe position, thereby sheathed tube installation effectiveness has been improved.

Optionally, the vertical fixedly connected with pole setting of sheathed tube one end is kept away from to branch, the pole setting is kept away from the vertical up of the one end of branch.

By adopting the technical scheme, when the sleeve falls on the supporting rod of the adjacent sleeve, the sleeve is simultaneously sleeved on the connecting rod on the supporting rod, the sleeve is effectively prevented from sliding off from the edge of the supporting rod, and the stability of the sleeve is improved.

Optionally, the one end of the support rod far away from the sleeve is provided with a cavity for the opening to be arranged, the cavity is provided with an inner rod in a sliding connection mode, and the support rod is provided with a limiting part used for limiting the inner rod to slide.

Through adopting above-mentioned technical scheme, slide interior pole for interior pole can be with the bottom contact of adjacent sheathed tube, and fixed interior pole with the locating part, with the spacing distance between the different adjacent sleeves of adaptation, improved the suitability of branch.

Optionally, the limiting part is a bolt, a through hole adapted to the bolt is formed in the opening of the outer wall of the supporting rod, a plurality of insertion holes adapted to the bolt are formed in the side wall of the inner rod, the insertion holes are uniformly arranged along the length direction of the supporting rod at intervals, and the bolt penetrates through the through hole and is inserted into the insertion holes.

Through adopting above-mentioned technical scheme, slide interior pole for interior pole contacts with adjacent sheathed tube bottom, when through-hole and jack coincide, inserts the bolt simultaneously in through-hole and the jack, thereby the slide of restriction interior pole, convenient operation.

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

1. sleeving a sleeve on a steel bar at the bottom of a steel bar cage, fixing the bottom of the sleeve and the steel bar by using a fixing assembly, filling filler into the sleeve, sealing the top of the sleeve by using a sealing element, separating the steel bar from concrete by using the sleeve, and easily separating the concrete from the sleeve when a pile head is broken, so that the pile breaking work is time-saving and labor-saving, and the bending deformation of the steel bar in the pile breaking process is effectively prevented;

2. the screw rod is rotated, the screw rod drives the first clamping plate and the second clamping plate to be close, the guide rod plays a role in guiding the first clamping plate and the second clamping plate, the situation that one side of the first clamping plate, which is far away from the screw rod, and one side of the second clamping plate, which is far away from the screw rod, are inclined is prevented, the first clamping plate and the second clamping plate are close to tightly clamp the bottom of the sleeve, and therefore the sleeve and the reinforcing steel bar are fixed, and the operation is convenient;

3. the sleeve pipe is placed in proper order, the sleeve pipe in proper order with adjacent sheathed tube branch butt to the fixed sleeve pipe, when placing last sleeve pipe, rotate the sleeve pipe, make branch not with adjacent sleeve pipe butt, fixed last sleeve pipe, whole sheathed tube bottoms are located same water flat line this moment, and the workman need not manually adjust the sleeve pipe, thereby has improved sheathed tube installation effectiveness.

Drawings

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

FIG. 2 is a schematic diagram of a portion of an embodiment of the present application;

FIG. 3 is a schematic view, partially in cross-section, of an embodiment of the present application;

fig. 4 is a partially enlarged schematic view of a portion a in fig. 3.

Description of reference numerals: 1. a sleeve; 2. a cover plate; 3. a fixing assembly; 31. a first splint; 32. a second splint; 33. a screw; 4. a threaded hole; 5. perforating; 6. a guide bar; 7. a guide hole; 8. a sealing layer; 9. a strut; 10. erecting a rod; 11. an inner rod; 12. a bolt; 13. a through hole; 14. and (4) inserting the jack.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

The embodiment of the application discloses broken head structure of pile foundation. Referring to fig. 1 and 2, a pile foundation broken end structure includes a plurality of sleeves 1, and sleeve 1 is used for the cover to establish on the reinforcing bar at steel reinforcement cage top, and sleeve 1's bottom is provided with and is used for the fixed subassembly 3 fixed with sleeve 1 and reinforcing bar, is provided with on the sleeve 1 to be used for the sealed sealing member with sleeve 1 top opening, has branch 9 along self radial welding on sleeve 1's the diapire.

Before breaking out the pile head, fall sleeve pipe 1 in proper order to with the branch 9 on the sleeve pipe 1 towards next sleeve pipe 1 position, sleeve pipe 1 in proper order with the branch 9 butt on the adjacent sleeve pipe 1, the back is established on the reinforcing bar at reinforcing bar cage top to sleeve pipe 1 cover, fixed sleeve pipe 1 on the reinforcing bar. Fill rubble or other fillers to in sleeve 1, prevent that the reinforcing bar from taking place the deformation under the powerful effect to the opening at sealed sleeve 1 top prevents that the concrete from getting into in sleeve 1 when the concreting. When placing the last sleeve 1, the sleeve 1 is rotated so that the struts 9 on the sleeve 1 do not contact the first sleeve 1 and the fixing and sealing operations are repeated. After the sleeve pipe 1 falls down, the bottoms of all the sleeve pipes 1 are positioned on the same horizontal plane, and workers do not need to manually adjust the positions of the sleeve pipes 1, so that the mounting efficiency of the sleeve pipes 1 is improved. Sleeve pipe 1 separates reinforcing bar and concrete, when demolising the pile head, the concrete separates with sleeve pipe 1 easily to improve construction worker's broken stake efficiency, and effectively prevent to cause reinforcing bar bending deformation at the abolishing in-process.

Referring to fig. 3 and 4, the fixing assembly 3 includes a first clamping plate 31, a second clamping plate 32, and a screw 33. The first clamping plate 31 and the second clamping plate 32 are welded on the outer wall of the bottom of the casing 1 in parallel, and the first clamping plate 31 and the second clamping plate 32 are positioned at two sides of the bottom of the casing 1. The threaded hole 4 matched with the screw rod 33 is formed in the end part of the side wall, facing the second clamping plate 32, of the first clamping plate 31, the through hole 5 coaxial with the threaded hole 4 is formed in the side wall, facing the first clamping plate 31, of the second clamping plate 32, the size of the through hole 5 is matched with the screw rod 33, and the screw rod 33 is arranged in the through hole 5 in a penetrating mode and is connected into the threaded hole 4 in a threaded mode.

The screw 33 is rotated, the screw 33 drives the second clamping plate 32 and the first clamping plate 31 to approach each other, and the first clamping plate 31 and the second clamping plate 32 approach to contact with the steel bar in the sleeve 1 and clamp the steel bar, so that the sleeve 1 is fixed on the outer wall of the steel bar, and the operation is convenient.

Referring to fig. 3 and 4, in order to prevent the end of the first clamping plate 31 away from the screw 33 and the end of the second clamping plate 32 away from the screw 33 from tilting during the rotation of the screw 33, the first clamping plate 31 and the second clamping plate 32 cannot clamp the reinforcing steel bars. The end of the second clamping plate 32 far away from the through hole 5 is vertically welded with the guide rod 6, the end of the guide rod 6 far away from the second clamping plate 32 faces the first clamping plate 31, and the guide rod 6 and the screw 33 are parallel to each other on the same horizontal plane. The one end of first splint 31 keeping away from screw hole 4 is seted up the guiding hole 7 with guide bar 6 looks adaptation, and guide bar 6 sliding connection is in guiding hole 7.

During the rotation of the screw 33, the guide rod 6 is slidably connected in the guide hole 7 and guides the first clamping plate 31 and the second clamping plate 32 so that the first clamping plate 31 and the second clamping plate 32 approach each other.

Referring to fig. 3 and 4, a sealing layer 8 is adhered to the inner wall of the bottom of the casing 1 along the circumferential direction of the casing, in this embodiment, the sealing layer 8 is a sponge block, and in other embodiments, the sealing layer 8 may be a silicone strip or a rubber strip. The projection of the sealing layer 8 on the vertical plane is located within the projection range of the first clamping plate 31 on the vertical plane.

After the reinforcing steel bars in the casing 1 are clamped by the first clamping plate 31 and the second clamping plate 32, the sealing layer 8 is filled in the gap in the casing 1, so that the sealing performance of the casing 1 is improved, and the filler in the casing 1 is effectively prevented from leaking from the bottom of the casing 1.

Referring to fig. 3 and 4, the sealing element is a cover plate 2 for covering the top opening of the sleeve 1, and the bottom wall of the cover plate 2 protrudes downwards along the vertical direction to form a convex ring matched with the inner diameter of the sleeve 1. Pour into rubble or other fillers back in sleeve pipe 1's inner chamber, the opening part at sleeve pipe 1 top is closed to 2 lids of apron to it is sealed with the opening at sleeve pipe 1 top, concrete gets into in the sleeve pipe 1 in with the reinforcing bar bonding together effectively to prevent during the cast-in-place concrete, thereby concrete separation is difficult for leading to reducing the efficiency of demolishing the pile head when making broken stake.

Referring to fig. 3 and 4, one end of the supporting rod 9, which is far away from the sleeve 1, is provided with a cavity for opening setting and along the length direction of the supporting rod, an inner rod 11 is slidably connected in the cavity, one end of the inner rod 11, which is back to the supporting rod 9, faces the bottom wall of the adjacent sleeve 1, and a limiting part for limiting the sliding of the inner rod 11 is arranged on the supporting rod 9. The limiting part is a bolt 12, a through hole 13 matched with the bolt 12 is formed in the outer wall of one end, facing the inner rod 11, of the supporting rod 9, and a plurality of jacks 14 matched with the bolt 12 are formed in the outer wall of the inner rod 11. In this embodiment, there are 3

jacks

14, 3 jacks 14 are uniformly distributed at intervals along the length direction of the inner rod 11, and the pins 12 penetrate through the through holes 13 and are inserted into the jacks 14. The vertical welding of the one end of interior pole 11 keeping away from branch 9 has pole setting 10, and the one end that pole setting 10 kept away from branch 9 is vertical upwards.

When the sleeve 1 falls, the sleeve 1 is sleeved on the vertical rod 10 of the adjacent sleeve 1, and the vertical rod 10 effectively prevents the sleeve 1 from sliding off from the edge of the supporting rod 9. When the spacing distances between the adjacent casings 1 are unequal, the inner rod 11 is slid so that the inner rod 11 can be brought into contact with the bottom walls of the adjacent casings 1. When the through hole 13 and the jack 14 are overlapped, the bolt 12 passes through the through hole 13 and is inserted into the jack 14, so that the sliding of the inner rod 11 is limited, the applicability of the support rod 9 is improved, and the operation is convenient.

The implementation principle of the pile foundation broken end structure of the embodiment of the application is as follows: when the reinforcement cage is placed into the foundation pit, the top of the reinforcement cage is fixed on the ground, and then the sleeve 1 is sleeved on the reinforcement at the bottom of the reinforcement cage. And the screw 33 is rotated, the screw 33 drives the first clamping plate 31 and the second clamping plate 32 together with the guiding effect of the guide rod 6 on the first clamping plate 31 and the second clamping plate 32 to drive the first clamping plate 31 and the second clamping plate 32 to be close to each other, and the sleeve 1 and the steel bar are fixed after the first clamping plate 31 and the second clamping plate 32 are close to each other. After the filler is filled into the sleeve 1, the cover plate 2 covers the opening at the top of the sleeve 1, so that concrete is effectively prevented from entering the sleeve 1 when the concrete is poured. The sleeve pipe 1 separates reinforcing bar and concrete, and the concrete is easy to separate from the sleeve pipe 1 when breaking the pile head, thereby improving the construction efficiency of broken pile and effectively preventing the bending deformation of reinforcing bar in the process of broken pile.

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 broken head structure of pile foundation which characterized in that: the steel bar cage top steel bar sealing device comprises a plurality of sleeves (1) used for being sleeved on steel bar cage top steel bars, sealing elements used for sealing openings at the tops of the sleeves (1), and fixing assemblies (3) used for fixing the sleeves (1) and the steel bars in the sleeves (1) are arranged at the bottoms of the sleeves (1).

2. The pile foundation head breaking structure according to claim 1, wherein: the sealing element is a cover plate (2), and a convex ring matched with the inner diameter of the sleeve (1) is arranged on the bottom wall of the cover plate (2).

3. The pile foundation head breaking structure according to claim 1, wherein: the fixed component (3) comprises a first clamping plate (31), a second clamping plate (32) and a screw rod (33), the first clamping plate (31) and the second clamping plate (32) are fixedly connected on the outer wall of the bottom of the sleeve (1) in parallel, the first clamping plate (31) and the second clamping plate (32) are located on two sides of the sleeve (1), a threaded hole (4) matched with the screw rod (33) is formed in the first clamping plate (31), a through hole (5) coaxial with the threaded hole (4) is formed in the second clamping plate (32), the screw rod (33) penetrates through the through hole (5) and is in threaded connection with the threaded hole (4), a guide rod (6) is fixedly arranged on the second clamping plate (32), a guide hole (7) matched with the guide rod (6) is formed in the first clamping plate (31), and the guide rod (6) is slidably arranged in the guide hole (7), the guide rod (6) is parallel to the screw rod (33).

4. The pile foundation head breaking structure of claim 3, wherein: the inner wall of the bottom of the sleeve (1) is provided with a sealing layer (8), and the projection of the sealing layer (8) on a vertical plane is located in the projection range of the first clamping plate (31) on the vertical plane.

5. The pile foundation head breaking structure according to claim 1, wherein: the bottom of sleeve pipe (1) is provided with branch (9) along self radial, the one end of branch (9) and the diapire fixed connection of sleeve pipe (1), the sleeve pipe (1) is kept away from to the other end.

6. The pile foundation head breaking structure of claim 5, wherein: the vertical fixedly connected with pole setting (10) of one end that sleeve pipe (1) was kept away from in branch (9), the one end that branch (9) were kept away from in pole setting (10) is vertical upwards.

7. The pile foundation head breaking structure of claim 5, wherein: the one end that sleeve pipe (1) was kept away from in branch (9) sets up and has seted up the cavity for the opening along the length direction of self, sliding connection has interior pole (11) in the cavity of branch (9), be provided with on branch (9) and be used for restricting interior pole (11) gliding locating part.

8. The pile foundation head breaking structure of claim 7, wherein: the limiting piece is a bolt (12), a through hole (13) matched with the bolt (12) is formed in the opening of the outer wall of the supporting rod (9), a plurality of inserting holes (14) matched with the bolt (12) are formed in the side wall of the inner rod (11), the inserting holes (14) are uniformly arranged in the length direction of the supporting rod (9) at intervals, and the bolt (12) penetrates through the through hole (13) and is inserted into the inserting holes (14).