CN113981960B

CN113981960B - A supporting construction for preventing bored concrete pile hole that collapses

Info

Publication number: CN113981960B
Application number: CN202111405121.0A
Authority: CN
Inventors: 陈家祥; 蒋欢; 钟晟
Original assignee: China Metallurgical Construction Engineering Group Co Ltd
Current assignee: China Metallurgical Construction Engineering Group Co Ltd
Priority date: 2021-11-24
Filing date: 2021-11-24
Publication date: 2022-12-23
Anticipated expiration: 2041-11-24
Also published as: CN113981960A

Abstract

The invention discloses a supporting structure for preventing a cast-in-place pile from collapsing holes, which comprises a pile hole, wherein a supporting sleeve and a fixing assembly are arranged at the position of a soft soil layer of the pile hole. The supporting sleeve is of a net-shaped structure, the upper end and the lower end of the supporting sleeve are arranged in an open mode, the fixing assembly is arranged in the supporting sleeve and compresses the supporting sleeve and fixes the supporting sleeve on the side wall of the pile hole, and the fixing assembly comprises an adjustable collar and a plurality of inserting rods arranged on the collar. According to the invention, the supporting sleeve and the fixing component are installed and used in a matched manner, the supporting sleeve is arranged in the pile hole, the fixing component is arranged in the supporting sleeve, the supporting sleeve is fixedly attached to the inner wall of the pile hole by adjusting the collar of the fixing component to be enlarged, and the supporting sleeve is inserted into a soil body on the wall of the pile hole through the inserting rod of the fixing component to be fixed, so that the wall of the pile hole can be effectively supported through the supporting sleeve to prevent the pile hole from collapsing, and the construction quality and the construction safety are improved.

Description

A supporting construction for preventing bored concrete pile hole that collapses

Technical Field

The invention relates to the technical field of pouring, in particular to a supporting structure for preventing a poured pile from collapsing.

Background

The cast-in-place pile system is a pile formed by forming a pile hole in foundation soil through mechanical drilling, steel pipe soil extrusion or manual excavation and the like on an engineering site, placing a reinforcement cage and cast-in-place concrete in the pile hole, and the cast-in-place pile can be divided into a immersed tube cast-in-place pile, a cast-in-place pile and a cast-in-place pile according to different hole forming methods.

In the construction process of the cast-in-situ bored pile, when a soft soil layer is encountered, collapse holes often occur, the quality problem is seriously influenced, and even more, safety accidents occur.

Therefore, it is urgently needed to provide a supporting structure for preventing a cast-in-place pile from collapsing holes, and the problem that the collapse holes are easy to appear when a soft soil layer is encountered in the cast-in-place pile drilling construction process in the prior art is solved.

Disclosure of Invention

In view of the above disadvantages, the present invention provides a supporting structure for preventing a cast-in-place pile from collapsing, which solves the problem that a pile is likely to collapse when encountering a soft soil layer during the construction of a cast-in-place pile.

In order to achieve the purpose, the technical scheme provided by the invention is as follows:

the utility model provides a supporting construction for preventing bored concrete pile hole that collapses, includes the stake hole, installs support sleeve and fixed subassembly in the weak soil layer position in stake hole. The supporting sleeve is of a net-shaped structure, the upper end and the lower end of the supporting sleeve are arranged in an open mode, the fixing assembly is arranged in the supporting sleeve and compresses the supporting sleeve and fixes the supporting sleeve on the side wall of the pile hole, and the fixing assembly comprises an adjustable collar and a plurality of inserting rods arranged on the collar.

Adopt above-mentioned structural design, it is downthehole that the stake is located through supporting sleeve dress to this scheme to install in supporting sleeve through fixed subassembly, and fix supporting sleeve fixed attached in the stake is downthehole and insert the pore wall in stake hole through fixed subassembly's inserted bar, and then prevent the hole that collapses, improved the security of construction quality and construction.

Furthermore, one end of the collar is fixedly provided with a collar head, and the other end of the collar penetrates through the collar head and can be amplified and adjusted in a single direction.

Furthermore, set up the spacing hole that runs through its both ends in the neck ring head, spacing downthehole dogtooth that is equipped with, correspond on the neck ring and be provided with the tooth's socket, the free end of neck ring passes spacing hole and through tooth's socket on the neck ring and spacing downthehole dogtooth meshing fixed. The side of the collar departing from the tooth socket is spaced from the side wall of the limiting hole, and when the collar is enlarged, the tooth socket can be separated from the convex teeth.

Adopt above-mentioned structural design, the neck ring adopts one-way enlarged setting, and tooth's socket and the dogtooth setting that correspond the setting on through neck ring and neck ring are when needs fix the support sleeve, enlarge the neck ring and then fix the support sleeve in stake hole pore wall, can prevent effectively that the neck ring from retracting to influence the fixed of support sleeve, cause the strut of further influence stake hole pore wall.

Furthermore, the inserted bar is sleeved on the collar through a fixing sleeve, a limiting groove is formed in the fixing sleeve, the inserted bar comprises a body and positioning blocks arranged on two sides of the body, and the inserted bar and the limiting groove are located on two opposite sides of the fixing sleeve.

Adopt above-mentioned structural design, spacing hole is used for external device to dock spacingly when enlargiing the neck ring of fixed subassembly, can guarantee that the position of inserted bar can not appear the position change because of the grow of neck ring, and then guarantees the fixed stability of inserted bar, in addition the setting of locating piece can effectively improve the fixed effect of inserted bar when inserting the stake hole pore wall.

Furthermore, the body is provided with a mounting groove, the positioning block is arranged in the mounting groove, the front end of the positioning block is pivoted in the mounting groove, and the rear end of the positioning block is fixedly arranged in the mounting groove through a spring.

Furthermore, the body and the positioning block are both in a conical structure, the direction of the free end of the body is outwards arranged on the collar, and the direction of the positioning block is the same as that of the body.

By adopting the structure design, the conical design of the body and the positioning block and the similar movable barb design of the positioning block, when the inserted bar is inserted into the soil body on the wall of the pile hole, the positioning block shrinks inwards, so that the inserted bar can be smoothly inserted into the soil, and when the inserted bar slides outwards, the positioning block can be opened, so that the inserted bar is not easy to pull out, and the stability of the fixing component is further improved.

Furthermore, 4 groups of inserted rods are uniformly arranged on the collar at intervals.

Further, the supporting sleeve is made of polyurethane materials.

Furthermore, the fixed components are in multiple groups and are distributed at intervals along the axial direction of the supporting sleeve.

The beneficial effects of the invention are as follows:

1. according to the invention, the supporting sleeve and the fixing component are installed and used in a matched manner, the supporting sleeve is arranged in the pile hole, the fixing component is arranged in the supporting sleeve, the supporting sleeve is fixedly attached to the inner wall of the pile hole by adjusting the size of the collar of the fixing component and is inserted into a soil body on the wall of the pile hole through the insertion rod of the fixing component for fixing, so that the supporting sleeve can be used for effectively supporting the wall of the pile hole to prevent the pile hole from collapsing, and the construction quality and the construction safety are improved.

2. The collar is arranged in a one-way amplification mode, and the tooth sockets and the convex teeth which are correspondingly arranged on the collar and the collar head are arranged, so that when the supporting sleeve needs to be fixed, the collar is amplified, the supporting sleeve is further fixed on the wall of the pile hole, the collar can be effectively prevented from retracting to influence the fixing of the supporting sleeve, and the supporting of the wall of the pile hole is further influenced.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

FIG. 1 is a state diagram of the present invention prior to installation;

FIG. 2 is a state diagram of the present invention after installation;

FIG. 3 is a schematic view of the mounting assembly of FIG. 1;

FIG. 4 is an enlarged view at A in FIG. 3;

fig. 5 is a cross-sectional view of the plunger of fig. 3.

The reference numerals in the drawings are explained below.

The supporting sleeve comprises a supporting sleeve 1, a fixing component 2, a collar 2a, a tooth socket 21a, an inserting rod 2b, a body 21b, a mounting groove 211b, a spring 212b, a positioning block 22b, a collar head 2c, a limiting hole 21c, a convex tooth 22c, a fixing sleeve 2d and a limiting groove 21d.

Detailed Description

In order to explain technical contents, structural features, and objects and effects of the present invention in detail, the following detailed description is given with reference to the accompanying drawings in conjunction with the embodiments.

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention. In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Referring to fig. 1 and 2, a supporting structure for preventing a cast-in-place pile from collapsing comprises a pile hole, a supporting sleeve 1 and a fixing component 2 are installed at a soft soil layer of the pile hole, the supporting sleeve 1 is of a net structure and is adjustable in size, and the upper end and the lower end of the supporting sleeve 1 are open so as to facilitate installation of the fixing component and subsequent concrete pouring. The fixing component 2 is arranged in the supporting sleeve 1, compresses the supporting sleeve 1 and fixes the supporting sleeve on the side wall of the pile hole, and the fixing component 2 comprises an adjustable collar 2a and a plurality of inserting rods 2b fixedly arranged on the collar 2 a. One end of the collar 2a is fixedly provided with a collar head 2c, and the other end of the collar 2a penetrates through the collar head 2c and can be amplified and adjusted in a single direction. The size of this scheme accessible regulation neck ring 2c will be installed in the downthehole support sleeve 1 of stake and enlarge until support sleeve 1 supports on the pore wall to insert through inserted bar 2b and fix in inserting the soil body, and then guarantee that the condition in hole of stake can not appear collapsing.

Referring to fig. 3, 4 and 5, in detail, a limiting hole 21c penetrating through both ends of the collar head 2c is formed in the collar head 2c, a protruding tooth 22c is arranged in the limiting hole 21c, and a tooth slot 21a is correspondingly formed on the collar 2 a. The free end of the collar 2a passes through the limiting hole 21c and is engaged and fixed by the tooth socket 21a on the collar 2a and the convex tooth 22c in the limiting hole 21 c. And a space is arranged between one side of the collar 2a, which is far away from the tooth sockets, and the side wall of the limiting hole 21c, and when the collar is expanded, the tooth sockets can be separated from the convex teeth. Inserted bar 2b is located through fixed cover 2d cover on the neck ring 2a, just spacing groove 21d has been seted up on fixed cover 2d, spacing groove 21d is used for external device to carry out the butt joint spacing when enlargiing fixed subassembly 2's neck ring 2a, can guarantee that the position of inserted bar 2b can not appear position change because of the grow of neck ring 2a, and then guarantees the fixed stability of inserted bar 2b. The inserted link 2b comprises a body 21b and positioning blocks 22b arranged on two sides of the body 21b, wherein the inserted link 2b and the limiting groove are positioned on opposite sides of the fixed sleeve 2 d. In this embodiment, the body 21b is provided with a mounting groove 211b, the positioning block 22b is mounted in the mounting groove 211b, the front end of the positioning block 22b is pivotally mounted in the mounting groove 211b, and the rear end is fixed in the mounting groove 211b by a spring 212 b. The positioning block 22b is designed like a barb, when the inserted link 2b is inserted into the soil body, the positioning block 22b shrinks inwards, so that the inserted link 2b can be smoothly inserted into the soil, and when the inserted link 2b slides outwards, the positioning block 22b is opened, so that the inserted link is not easy to pull out, and the stability of fixation is further ensured.

In this embodiment, the body 21b and the positioning block 22b are both tapered structures, and the direction of the free end of the body 21b is outward arranged on the collar 2a, the positioning block 22b is arranged in the same direction as the body 21b, and the tapered structure design is adopted so that the insertion rod 2b can be smoothly inserted into the soil for fixation.

In this embodiment, 4 sets of insertion rods 2b are uniformly spaced on the collar 2a, which is the most preferred embodiment in this application, but not limited to the above-mentioned structural design.

In this embodiment, the supporting sleeve 1 is made of polyurethane material, and has elasticity, so that the supporting sleeve can be enlarged and reduced. The fixed components 2 are in a plurality of groups and are distributed at intervals along the axial direction of the supporting sleeve 1.

The working principle of the invention is as follows:

in the construction process of the cast-in-situ bored pile, after mechanical drilling is carried out on site, the position of a soft soil layer of a pile hole is supported and fixed. Firstly, the supporting sleeve 1 is arranged in a pile hole, then the fixing component 2 is sent into the supporting sleeve 1 through the special mounting mechanism and the collar 2a of the fixing component 2 is amplified through the mounting mechanism, the inserting rod 2b outwards expands and penetrates through the supporting sleeve 1 along with the enlargement of the collar 2a, the mounting mechanism continuously adjusts the size of the collar 2a to enable the supporting sleeve 1 to be attached to the wall of the pile hole, the inserting rod 2b is inserted into soil body of the hole wall to be fixed, and the mounting mechanism stops working. Repeating the above actions, sequentially installing a plurality of fixing assemblies 2 in the supporting sleeve 1, directly pouring concrete after the installation is finished, and not taking out the supporting device.

Variations and modifications to the above-described embodiments may occur to those skilled in the art based upon the disclosure and teachings of the above specification. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and variations of the present invention should fall within the scope of the claims of the present invention. In addition, although specific terms are employed herein, they are used in a generic and descriptive sense only and not for purposes of limitation, the use of the term being generic or similar to other means being encompassed by the invention.

Claims

1. A supporting structure for preventing a cast-in-place pile from collapsing holes comprises pile holes and is characterized in that a supporting sleeve (1) and a fixing component (2) are installed at the position of a soft soil layer of each pile hole, the supporting sleeve (1) is of a net-shaped structure, the upper end and the lower end of the supporting sleeve (1) are arranged in an open mode, the fixing component (2) is installed in the supporting sleeve (1), the supporting sleeve (1) is compressed and fixed on the inner wall of each pile hole, and the fixing component (2) comprises an adjustable collar (2 a) and a plurality of inserting rods (2 b) installed on the collar (2 a); one end of the neck ring (2 a) is fixedly provided with a neck ring head (2 c), and the other end of the neck ring passes through the neck ring head (2 c) and can be amplified and adjusted in a single direction; the size of the collar (2 a) is adjusted to enable the supporting sleeve (1) arranged in the pile hole to be abutted against the wall of the hole, and the collar is inserted into a soil body through the inserting rod (2 b) to be fixed; wherein, collar head (2 c) is seted up and is run through spacing hole (21 c) at its both ends, be equipped with dogtooth (22 c) in spacing hole (21 c), the correspondence is provided with tooth's socket (21 a) on collar (2 a), the free end of collar (2 a) passes spacing hole (21 c) and through tooth's socket (21 a) on collar (2 a) and dogtooth (22 c) meshing fixed in spacing hole (21 c), collar (2 a) deviate from one side of tooth's socket and spacing hole (21 c) lateral wall between have the interval, when collar (2 a) expand, tooth's socket (21 a) can break away from dogtooth (22 c).

2. The supporting structure for preventing the cast-in-place pile from collapsing holes as claimed in claim 1, wherein the inserted bar (2 b) is sleeved on the collar (2 a) through a fixing sleeve (2 d), and the fixing sleeve (2 d) is provided with a limiting groove (21 d), the inserted bar (2 b) comprises a body (21 b) and positioning blocks (22 b) arranged on two sides of the body (21 b), wherein the inserted bar and the limiting groove are arranged on two opposite sides of the fixing sleeve.

3. The supporting structure for preventing the cast-in-place pile from collapsing according to claim 2, wherein the body (21 b) is provided with a mounting groove (211 b), the positioning block (22 b) is mounted in the mounting groove (211 b), the front end of the positioning block (22 b) is pivoted in the mounting groove (211 b), and the rear end is fixedly mounted in the mounting groove (211 b) through a spring (212 b).

4. A supporting structure for preventing a cast-in-place pile from collapsing as claimed in claim 3, wherein the body (21 b) and the positioning block (22 b) are both of a conical structure, the free end of the body (21 b) is outwardly arranged on the collar (2 a), and the positioning block (22 b) is arranged in the same direction as the body (21 b).

5. A supporting structure for preventing pile collapse according to claim 1, wherein 4 sets of insert rods (2 b) are uniformly spaced on the collar (2 a).

6. A supporting construction for preventing a bored pile from collapsing according to claim 1, wherein the supporting sleeve (1) is made of a polyurethane material.

7. A supporting construction for preventing a bored pile from collapsing according to claim 1, wherein the fixing members (2) are provided in plural sets and are axially spaced along the supporting sleeve (1).