Cast-in-situ bored pile

By using mirror design of work-shaped steel seats and positioning structures in drilled piles, the problem of low fixing efficiency of steel cages is solved, fast and stable connections are achieved, and the construction efficiency of drilled piles is improved.

CN222252067UActive Publication Date: 2024-12-27TIANJIN SHENJIA GEOTECHNICAL ENG CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202323626623.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2023-12-29
Publication Date
2024-12-27
Estimated Expiration
2033-12-29

AI Technical Summary

Technical Problem

The structural design of the steel cage in the existing drilled cast piles is cumbersome, resulting in low fixing efficiency and affecting the formation efficiency of drilled cast piles.

Method used

Using the mirror positioning structure and fixing structure between the first working steel seat and the second working steel seat, the rebar cage can be clamped and connected to the coupling of the positioning insertion rod and the positioning groove to achieve rapid fixing and support The plate and the annular support form a slot to ensure a stable connection of the main ribs.

Benefits of technology

It improves the connection fixing efficiency and stability of the steel cage, simplifies the operation process, reduces the difficulty and risks of welding, and promotes the construction progress of drilling and cast-injected piles.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN222252067U_ABST
    Figure CN222252067U_ABST
Patent Text Reader

Abstract

The utility model discloses a cast-in-situ bored pile, and particularly relates to the technical field of constructional engineering. The cast-in-situ bored pile comprises a first reinforcement cage body and a second reinforcement cage body which are arranged in a foundation pile hole and adjacent to each other, and the first reinforcement cage body comprises a first reinforcement stirrup and first reinforcement main reinforcements circumferentially distributed on the inner side of the first reinforcement stirrup; the second reinforcement cage main body comprises second reinforcement stirrups and second reinforcement main reinforcements circumferentially distributed on the inner sides of the second reinforcement stirrups, and is characterized in that the bottom ends of the first reinforcement main reinforcements are fixedly connected with first I-shaped steel seats, and the top ends of the second reinforcement main reinforcements are fixedly connected with second I-shaped steel seats. The utility model solves the technical problems that the structural design of the fixing mode of the reinforcement cage in the current cast-in-situ bored pile is tedious, and the fixing efficiency is reduced and the forming efficiency of the cast-in-situ bored pile is influenced by independently fixing each pair of main reinforcements at the same time.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The utility model relates to the technical field of construction engineering, and more specifically, to a bored cast-in-place pile. Background Art

[0002] Cast-in-place piles refer to piles that are made by forming pile holes in the foundation soil at the construction site through mechanical drilling, steel pipe squeezing or manual excavation, and placing steel cages inside and pouring concrete. Depending on the hole-forming method, cast-in-place piles can be divided into several categories, such as sunken pipe cast-in-place piles, bored cast-in-place piles and excavated cast-in-place piles.

[0003] Patent No. CN 218322718 U discloses a bored pile, which relates to the field of construction engineering technology, and improves the problem of high difficulty in operation and low work efficiency when lengthening a steel cage. It includes a pile tube and a steel cage arranged in the pile tube, wherein the steel cage includes stirrups and a plurality of main bars annularly distributed on the inner circumference of the stirrups, and a connecting ring for connecting the steel cages is arranged between adjacent steel cages, and a connecting head is fixedly connected to one end of the main bar close to the connecting ring, and a connecting block is fixedly connected to one side of the connecting head, and connecting grooves adapted to the connecting block are provided on both sides of the connecting ring, and a screw is rotatably installed inside the cavity, and a movable plate is threadedly connected to the surface of the screw, and a plug-in block is fixedly connected to one side of the movable plate close to the connecting groove. The present application can quickly position and connect the main bars of adjacent steel cages through the arrangement of the connecting head and the connecting ring, without the need for welding, thereby reducing the difficulty of operation and improving work efficiency.

[0004] In the above patent, the inventor believes that although the patent can achieve fixed connection between adjacent steel cages when used, the fixing method it adopts is complicated in structural design. At the same time, each pair of main bars is fixed independently, which reduces the efficiency of fixing and affects the efficiency of bored cast-in-place pile formation. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, an embodiment of the utility model provides a bored cast-in-place pile. The technical problem to be solved by the utility model is that the structural design of the fixing method of the steel cage in the current bored cast-in-place pile is complicated, and at the same time, each pair of main bars is fixed independently, which reduces the fixing efficiency and also affects the efficiency of the bored cast-in-place pile formation.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a bored cast-in-place pile, comprising a first steel cage body and a second steel cage body that are adjacent to each other and are arranged in a foundation pile hole, the first steel cage body comprising a first steel stirrup and a first main steel bar circumferentially distributed on the inner side of the first steel stirrup, the second steel cage body comprising a second steel stirrup and a second main steel bar circumferentially distributed on the inner side of the second steel stirrup, the bottom end of the first main steel bar is fixedly connected to a first I-shaped steel seat, the top end of the second main steel bar is fixedly connected to a second I-shaped steel seat, a pair of mirror-imaged clamping structures are arranged between the first main steel bar and the second main steel bar, the clamping structures are movably arranged on the first I-shaped steel seat and the second I-shaped steel seat, and a fixed structure is arranged on the pair of clamping structures.

[0007] In a preferred embodiment, a positioning rod is fixedly connected to the bottom of the first I-shaped steel seat, and a positioning groove for fitting the positioning rod is provided on the top of the second I-shaped steel seat.

[0008] In a preferred embodiment, the locking structure includes a support plate and a pair of annular supports fixedly connected to the inner side of the support plate; the pair of annular supports respectively abut against the inner annular walls of the first I-shaped steel seat and the second I-shaped steel seat.

[0009] In a preferred embodiment, a slot is formed between a pair of annular supports on the support plate, and a size of the slot matches the sum of the thicknesses of the ends of the first I-shaped steel seat and the second I-shaped steel seat.

[0010] In a preferred embodiment, the support plate and the annular support are both arranged in a semi-annular structure.

[0011] In a preferred embodiment, the fixing structure includes a first fixing seat fixedly connected to one end of the supporting plate, a second fixing seat fixedly connected to the other end of the supporting plate, and fasteners arranged on the first fixing seat and the second fixing seat.

[0012] Technical effects and advantages of the utility model:

[0013] The utility model arranges a first I-shaped steel seat and a second I-shaped steel seat at the opposite ends of the first and second main reinforcement bars, so as to fix a pair of clamping structures through a fixing structure. The first I-shaped steel seat and the second I-shaped steel seat are arranged to clamp and dock the first I-shaped steel seat and the second I-shaped steel seat, so that adjacent reinforcement cages can be quickly connected and fixed, and the connection stability and fixing efficiency are high. In addition, the positioning rod is plugged into the positioning groove, so that a positioning effect can be achieved when the first reinforcement cage body and the second reinforcement cage are docked and fixed, so as to stabilize the connection position of the second reinforcement cage, so as to ensure the fixing quality and efficiency between the main reinforcements. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the implementation or the prior art description. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0015] The structures, proportions, sizes, etc. illustrated in this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with the technology. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantial technical significance. Any structural modification, change in proportion or adjustment of size shall still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0017] Figure 2 For the utility model Figure 1 A partial schematic diagram of .

[0018] Figure 3 It is a structural schematic diagram of the first I-shaped steel seat, the second I-shaped steel seat, the clamping structure and the fixing structure of the utility model.

[0019] Figure 4 It is a schematic structural diagram of the first I-shaped steel seat and the second I-shaped steel seat of the utility model.

[0020] The accompanying drawings are marked as follows: 1. the first steel cage body; 11. the first steel stirrup; 12. the first steel main bar; 2. the second steel cage body; 21. the second steel stirrup; 22. the second steel main bar; 3. the first I-shaped steel seat; 4. the second I-shaped steel seat; 5. the positioning structure; 51. the supporting plate; 52. the annular support; 6. the fixing structure; 61. the first fixing seat; 62. the second fixing seat; 63. the fastener; 7. the positioning rod; 71. the positioning groove. DETAILED DESCRIPTION

[0021] The following is a specific embodiment of the present invention. People familiar with the technology can easily understand the other advantages and functions of the present invention from the contents disclosed in this specification. Obviously, the described embodiment is a part of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] Combined with reference Figure 1-Figure 4The utility model provides a bored pile, comprising a first steel cage body 1 and a second steel cage body 2 which are arranged in and adjacent to a foundation pile hole; a pile hole is formed in the foundation soil by mechanical drilling, steel pipe squeezing or manual excavation at the construction site, and a steel cage is placed therein, and the pile is made by pouring concrete; when a single steel cage in the present application cannot meet the placement requirements of the pile hole depth, that is, when at least two groups of steel cages are placed, the connection method of the first steel cage body 1 and the second steel cage body 2 in the bored pile of the present application can be used to accumulate the length of the steel cage; the first steel cage body 1 comprises a first steel stirrup 11 and a first main steel bar 12 circumferentially distributed inside the first steel stirrup 11, the second steel cage body 2 comprises a second steel stirrup 21 and a second main steel bar 22 circumferentially distributed inside the second steel stirrup 21, the bottom end of the first main steel bar 12 is fixedly connected to a first I-shaped steel seat 3, and the top end of the second main steel bar 22 is fixedly connected to a first I-shaped steel seat 3. A second I-shaped steel seat 4 is fixedly connected; in the present application, an inner ring groove is formed on the inner side of the first I-shaped steel seat 3 and the second I-shaped steel seat 4, and when there is a need to superimpose the first steel cage body 1 and the second steel cage body 2, the first I-shaped steel seat 3 and the second I-shaped steel seat 4 can be welded to the corresponding main reinforcement in advance, which can shorten the progress of bored pile construction; if welding operations are performed based on the first steel cage body 1 and the second steel cage body 2 during the bored pile construction, welding is difficult and dangerous; in this way, the corresponding inner ring groove positions on the first I-shaped steel seat 3 and the second I-shaped steel seat 4 can be supported by limiting the position, so as to provide a fixed connection effect for the relative first steel main reinforcement 12 and the second steel main reinforcement 22; a pair of mirror-image-arranged clamping structures 5 are arranged between the first steel main reinforcement 12 and the second steel main reinforcement 22, and the clamping structures 5 are movably arranged on the first I-shaped steel seat 3 and the second I-shaped steel seat 4, and a pair of clamping structures 5 are arranged with a fixed structure 6.

[0023] In this embodiment, a pair of clamping structures 5 are fixed by a fixing structure 6 based on the arrangement on a plurality of first I-shaped steel seats 3 and second I-shaped steel seats 4 arranged in a ring, with the purpose of clamping and docking the first I-shaped steel seats 3 and the second I-shaped steel seats 4. In this way, adjacent steel cages can be quickly connected and fixed, with high connection stability and high fixing efficiency. Therefore, by optimizing the connection structure of the first steel cage body 1 and the second steel cage body 2, the fixing efficiency can be improved, and the progress of bored cast-in-place pile formation can be promoted.

[0024] The bottom of the first I-shaped steel seat 3 is fixedly connected with a positioning rod 7, and the top of the second I-shaped steel seat 4 is provided with a positioning groove 71 for fitting with the positioning rod 7; when the first steel cage body 1 and the second steel cage body 2 are connected, that is, the second steel cage body 2 at the bottom is first placed into the pile hole by a lifting device and the position of the second main steel bar 22 is partially exposed, and then the second steel cage body 2 is lifted to dock with the first steel cage body 1 until the positioning rod 7 is placed in the positioning groove 71. At this time, the first I-shaped steel seat 3 can be seated on the second I-shaped steel seat 4, so that the second steel cage body 2 can achieve a pre-fixed docking effect on the first steel cage body 1 to stabilize the longitudinal docking position of the second steel cage body 2 to the first steel cage body 1, so that it is convenient to restrain and limit the first I-shaped steel seat 3 and the second I-shaped steel seat 4 through a pair of clamping structures 5, and a plurality of first I-shaped steel seats 3 and second I-shaped steel seats 4 are synchronously fixed through a pair of clamping structures 5, so that the fixing speed of the first steel cage body 1 and the second steel cage body 2 can be improved.

[0025] The locking structure 5 includes a supporting plate 51 and a pair of annular supports 52 fixedly connected to the inner side of the supporting plate 51; the pair of annular supports 52 respectively abut against the inner annular walls of the first I-shaped steel seat 3 and the second I-shaped steel seat 4; when the first I-shaped steel seat 3 and the second I-shaped steel seat 4 are pre-jointed, the first annular supports 52 are correspondingly abutted against the inner annular walls of the first I-shaped steel seat 3 and the second I-shaped steel seat 4 by using the supporting plate 51, and the two half-shaped first annular supports 52 can form a circular structure to enclose and lock the first I-shaped steel seat 3 and the second I-shaped steel seat 4, so as to prevent the first I-shaped steel seat 3 and the second I-shaped steel seat 4 from being disengaged.

[0026] Based on the formation of a slot between a pair of annular supports 52 on the support plate 51, the size of the slot matches the sum of the thicknesses of the ends of the first I-shaped steel seat 3 and the second I-shaped steel seat 4; the end is also the end position of the first I-shaped steel seat 3 or the second I-shaped steel seat 4; when the annular support 52 is inserted into the inner ring wall of the first I-shaped steel seat 3 or the second I-shaped steel seat 4, the slot area formed between the pair of annular supports 52 can correspond to and be externally positioned at the end positions of the first I-shaped steel seat 3 and the second I-shaped steel seat 4, so that the locking effect can be further achieved.

[0027] The supporting plate 51 and the annular support 52 are both arranged in a semi-annular structure; the semi-annular structure is designed to facilitate docking and use.

[0028] The number of the fixing structures 6 in the present application is two groups; the fixing structures 6 include a first fixing seat 61 fixedly connected to the end of one of the supporting plates 51, a second fixing seat 62 fixedly connected to the end of the other supporting plate 51, and fasteners 63 arranged on the first fixing seat 61 and the second fixing seat 62; the fasteners 63 can adopt a bolt structure.

[0029] Specifically, after a pair of support plates 51 are relatively butted, that is, after the corresponding annular support 52 is inserted into the first I-shaped steel seat 3 and the second I-shaped steel seat 4, they can be fixed by means of fasteners 63 passing through the first fixing seat 61 and the second fixing seat 62. In this way, by stabilizing a pair of support plates 51 between the first steel cage body 1 and the second steel cage body 2, while achieving an anti-slip effect, by positioning and restraining the connection relationship between the first I-shaped steel seat 3 and the second I-shaped steel seat 4, the first main steel bar 12 and the second main steel bar 22 can be quickly fixed, thereby stabilizing the connection relationship between the first steel cage body 1 and the second steel cage body 2 placed in the foundation pile hole.

[0030] Although the utility model has been described in detail above with general descriptions and specific embodiments, it is obvious to those skilled in the art that some modifications or improvements can be made to the utility model. Therefore, these modifications or improvements made without departing from the spirit of the utility model are within the scope of protection claimed by the utility model.

[0031] The terms such as "upper", "lower", "left", "right", "middle", etc. cited in this specification are only for the convenience of description and are not used to limit the scope of implementation of the present invention. Changes or adjustments to their relative relationships should be regarded as the scope of implementation of the present invention without substantially changing the technical content.

Claims

1. A bored pile, comprising a first steel cage body (1) and a second steel cage body (2) which are arranged adjacent to each other in a foundation pile hole, wherein the first steel cage body (1) comprises a first steel stirrup (11) and a first main steel bar (12) which is circumferentially distributed inside the first steel stirrup (11), and the second steel cage body (2) comprises a second steel stirrup (21) and a second main steel bar (22) which is circumferentially distributed inside the second steel stirrup (21), characterized in that: The bottom end of the first main steel bar (12) is fixedly connected to a first I-shaped steel seat (3), the top end of the second main steel bar (22) is fixedly connected to a second I-shaped steel seat (4), a pair of mirror-image-arranged clamping structures (5) are arranged between the first main steel bar (12) and the second main steel bar (22), the clamping structures (5) are movably arranged on the first I-shaped steel seat (3) and the second I-shaped steel seat (4), and a fixed structure (6) is arranged on the pair of clamping structures (5).

2. A bored pile according to claim 1, characterized in that: A positioning rod (7) is fixedly connected to the bottom of the first I-shaped steel seat (3), and a positioning groove (71) for engaging with the positioning rod (7) is provided on the top of the second I-shaped steel seat (4).

3. A bored pile according to claim 1, characterized in that: The locking structure (5) comprises a supporting plate (51) and a pair of annular supports (52) fixedly connected to the inner side of the supporting plate (51); the pair of annular supports (52) respectively abut against the inner annular walls of the first I-shaped steel seat (3) and the second I-shaped steel seat (4).

4. A bored pile according to claim 3, characterized in that: Based on the formation of a slot between a pair of annular supports (52) on the support plate (51), the size of the slot matches the sum of the thicknesses of the ends of the first I-shaped steel seat (3) and the second I-shaped steel seat (4).

5. The bored pile according to claim 3, characterized in that: The supporting plate (51) and the annular support (52) are both arranged in a semi-annular structure.

6. The bored pile according to claim 3, characterized in that: The fixing structure (6) comprises a first fixing seat (61) fixedly connected to the end of one of the supporting plates (51), a second fixing seat (62) fixedly connected to the end of the other supporting plate (51), and fasteners (63) arranged on the first fixing seat (61) and the second fixing seat (62).