CN216339592U

CN216339592U - Pile opening protection structure of bored concrete pile hole

Info

Publication number: CN216339592U
Application number: CN202122897570.3U
Authority: CN
Inventors: 蒋欢; 钟晟; 陈家祥
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: 2022-04-19
Anticipated expiration: 2031-11-24

Abstract

The utility model discloses a pile opening protection structure of a cast-in-place pile hole, which comprises a pile hole, wherein a support assembly is arranged at the pile opening of the pile hole, and the support assembly comprises an upper positioning cylinder and a lower support cylinder. The upper positioning cylinder is sleeved at the upper end of the lower supporting cylinder and is fixedly connected with the lower supporting cylinder. The lower supporting cylinder extends into the pile hole and is fixedly connected with the side wall of the pile hole through a plurality of fixing assemblies. The upper positioning cylinder is folded outwards until the upper positioning cylinder is attached to the ground and then is fixedly connected with the ground through the fixing assembly. The inner side of the upper end edge of the lower supporting cylinder extends upwards to form a water retaining protective cylinder, and the water retaining protective cylinder protrudes out of the ground. The lower supporting cylinder is fixedly attached to the inner wall of the pile hole, and the upper positioning cylinder is turned, bent and attached to the ground for fixing, so that the upper positioning cylinder and the lower supporting cylinder can effectively support the wall of the upper end hole and the lower end hole of the pile hole to prevent the pile hole from collapsing, the pile opening is protected, and the construction quality and the construction safety are improved.

Description

Pile opening protection structure of bored concrete pile hole

Technical Field

The utility model relates to the technical field of pouring, in particular to a pile opening protection structure of a pouring pile hole.

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 cast-in-situ bored pile construction process, the protection of the pile hole is very important, especially the pile opening of the pile hole is easy to collapse and the like due to rainwater pouring and the like, especially when a soft soil layer exists in the pile hole, a large amount of rainwater is poured in, so that the collapse hole is easy to cause, the quality problem is seriously influenced, and even more, safety accidents can occur.

Therefore, the pile opening protection structure of the bored concrete pile hole is urgently needed to be provided, and the problem that the upper end of the pile hole is collapsed easily in the underwater bored concrete pile construction process in the prior art is solved.

SUMMERY OF THE UTILITY MODEL

In view of the above disadvantages, the present invention provides a pile opening protection structure for a bored concrete pile hole, which solves the problem that a hole collapse at the upper end of the pile hole is likely to occur during the construction of an underwater pile hole bored concrete pile.

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

the utility model provides a stake mouth protective structure in bored concrete pile stake hole, includes the stake hole, installs supporting component at the stake mouth in stake hole, supporting component includes a location section of thick bamboo and a lower support section of thick bamboo. The upper positioning cylinder is of a horn-shaped structure with a large upper part and a small lower part, and the lower supporting cylinder is of a cylindrical structure. Wherein, the upper positioning cylinder is sleeved at the upper end of the lower supporting cylinder and is fixedly connected with the lower supporting cylinder. The lower supporting cylinder extends into the pile hole and is fixedly connected with the side wall of the pile hole through a plurality of fixing assemblies. The upper positioning cylinder is folded outwards until the upper positioning cylinder is attached to the ground and then is fixedly connected with the ground through the fixing assembly. The inner side of the upper end edge of the lower supporting cylinder extends upwards to form a water retaining protective cylinder, and the water retaining protective cylinder protrudes out of the ground.

By adopting the structural design, the upper positioning cylinder and the lower supporting cylinder of the supporting component are respectively arranged on the upper part and the lower part of the pile hole of the underwater pile hole for supporting, and the upper positioning cylinder and the lower supporting cylinder are fixed on the upper part and the lower hole wall of the pile hole through the fixing component, so that the effective protection of the underwater pile hole is realized, and the collapse hole is prevented, and the protection is realized for the pile opening.

Preferably, the fixing assembly comprises an adjustable collar and a plurality of inserted rods movably mounted on the collar, 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;

wherein, set up the movable hole that runs through its both ends in the neck ring head, be equipped with the dogtooth in the movable hole, it is provided with the tooth's socket to correspond on the neck ring, the free end of neck ring passes the movable hole just is fixed with the dogtooth meshing in the movable hole through the tooth's socket on the neck ring, the neck ring deviates from one side of tooth's socket and has the interval between the movable hole lateral wall, and when the neck ring enlarges, the tooth's socket can break away from the dogtooth.

Adopt above-mentioned structural design, the neck ring realizes one-way enlarged setting through tooth's socket and the dogtooth that neck ring overhead correspondence set up, when needs fix lower supporting cylinder, enlarges the neck ring and then fixes lower supporting cylinder attached in stake hole pore wall, can prevent effectively that the neck ring from retracting the fixed of influence supporting component, causes the strut of further influence stake hole pore wall.

Preferably, the inserted link is installed on the neck ring through a fixed sleeve, and the fixed sleeve is provided with a limit groove, the inserted link comprises a body and positioning blocks arranged on two sides of the body, wherein the inserted link and the limit groove are positioned on two opposite sides of the fixed sleeve.

Adopt above-mentioned structural design, can produce relative movement when the effort is great between fixed cover and the neck ring, the activity hole is used for external installation 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. Meanwhile, the positioning block is designed like a movable barb, when the inserted bar is inserted into a soil layer of 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 assembly is further improved.

Preferably, 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.

Preferably, the lower side edge of the groove wall of the mounting groove is convexly provided with a limiting table, the lower end of the positioning block is correspondingly convexly provided with a limiting block, and the limiting block is arranged on the inner side of the limiting table to move.

Preferably, the collar is provided with 4 groups of inserted rods.

Preferably, the upper positioning cylinder and the lower supporting cylinder are made of metal plates.

Preferably, the upper positioning cylinder is provided with a plurality of tearing seams (11a), and the tearing seams extend from the upper end of the upper positioning cylinder to be close to the lower end of the upper positioning cylinder.

Preferably, the height of the water retaining protective cylinder is 1-3 m.

The utility model has the beneficial effects that:

1. the utility model is used by the matching installation of the supporting component and the fixing component, the lower supporting cylinder is arranged in the pile hole, the upper positioning cylinder is supported at the top end of the pile hole, and the upper positioning cylinder and the lower supporting cylinder are arranged in the upper positioning cylinder and the lower supporting cylinder by the fixing component. The neck ring size of adjusting fixed subassembly fixes the attached in stake hole inner wall of the lower supporting cylinder of supporting component, and it is fixed in ground to go up a location section of thick bamboo upset buckle simultaneously, and then can effectively strut the upper end in stake hole and lower extreme pore wall through last a location section of thick bamboo and lower supporting cylinder and prevent the hole of collapsing, plays the effective protection to the stake mouth, has improved the security of construction quality and construction.

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 lower supporting cylinder needs to be fixed, the collar is amplified, the lower supporting cylinder is fixed on the wall of the pile hole, the collar can be effectively prevented from retracting to influence the fixation of the lower supporting cylinder, and the supporting of the wall of the pile hole can be further influenced.

3. The water retaining protective cylinder formed by upward protruding extension of the inner side of the upper end edge of the lower supporting cylinder plays a role in retaining water when a pile hole is poured underwater, and the pile hole supporting and construction safety is improved.

Drawings

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

FIG. 1 is a schematic view of the present invention after installation;

FIG. 2 is a schematic view of the fastening assembly of FIG. 1;

FIG. 3 is an enlarged view at A in FIG. 2;

fig. 4 is a cross-sectional view of the plunger of fig. 2.

The reference numerals in the drawings are explained below.

The water-retaining device comprises a supporting component 1, an upper positioning cylinder 1a, a tearing seam 11a, a lower supporting cylinder 1b, a water-retaining guard cylinder 1c, a fixing component 2, a collar 2a, a tooth groove 21a, an inserted link 2b, a body 21b, a mounting groove 211b, a spring 212b, a limiting table 213b, a positioning block 22b, a limiting block 221b, a collar head 2c, a movable hole 21c, a convex tooth 22c, a fixing sleeve 2d and a limiting groove 21 d.

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 derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within 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 pile mouth protection structure of a bored concrete pile hole includes a pile hole, a support assembly 1 is installed at the pile mouth of the pile hole, the support assembly 1 includes an upper positioning cylinder 1a and a lower support cylinder 1b, the upper positioning cylinder 1a is a horn-shaped structure with a large top and a small bottom, and the lower support cylinder 1b is a cylindrical structure. The upper positioning cylinder 1a is sleeved at the upper end of the lower supporting cylinder 1b and is fixedly connected with the lower supporting cylinder 1 b. And the lower supporting cylinder 1b extends into the pile hole and is fixedly connected with the side wall of the pile hole through a plurality of fixing components. The upper positioning cylinder 1a is folded outwards until the upper positioning cylinder is attached to the ground, and then is fixedly connected with the ground through the fixing assembly. The inner side of the upper end edge of the lower supporting cylinder 1b extends upwards to form a water retaining protective cylinder 1c, and the water retaining protective cylinder 1c protrudes out of the ground.

The fixed assembly 2 comprises an adjustable collar 2a and a plurality of insert rods 2b movably mounted on the collar 2 a. One end of the neck ring 2a is fixedly provided with a neck ring head 2c, and the other end of the neck ring passes through the neck ring head 2c and can be amplified and adjusted in a single direction. Wherein, the neck ring head 2c is internally provided with a movable hole 21c penetrating through two ends thereof, the movable hole 21c is internally provided with a convex tooth 22c, the neck ring 2a is correspondingly provided with a tooth socket 21a, and the free end of the neck ring 2a penetrates through the movable hole 21c and is meshed and fixed with the convex tooth 22c in the movable hole 21c through the tooth socket 21a on the neck ring 2 a. The side of the collar 2a, which faces away from the gullet, is spaced from the side wall of the movable hole 21c, and when the collar 2a is expanded, the gullet 21a can be disengaged from the convex tooth 22 c. Usually, the length of the lower support cylinder is 30-80cm, so that the installation of the fixing component and the fixing of the lower support cylinder are completed through a manual operation interface.

As an optimization, the insert rod 2b is installed on the collar 2a through a fixing sleeve 2d, and the fixing sleeve 2d is provided with a limiting groove 21 d. The inserted bar 2b comprises a body 21b and positioning blocks 22b arranged on two sides of the body 21b, wherein the inserted bar and the limiting groove are positioned on two opposite sides of the fixing sleeve. When the length of the lower supporting cylinder is longer, for example, more than 1m, the lower supporting cylinder needs to be matched with a special mounting device for mounting; specifically, installation device is including installation pole and telescopic link, and the telescopic link is perpendicular and installation pole, and the duplex winding installation pole a week distributes, and this telescopic link inserts the spacing inslot in order to cooperate with fixed subassembly, then puts into the position of setting for in the lower supporting cylinder through installation device with fixed subassembly after, the extension of control telescopic link to make the neck ring enlarge, make the inserted bar insert in the soil horizon simultaneously, realize that the installation of lower supporting cylinder is fixed.

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 fixedly mounted in the mounting groove 211b through a spring 212 b. The lower side edge of the groove wall of the mounting groove 211b is convexly provided with a limiting table 213b, the lower end of the positioning block 22b is correspondingly convexly provided with a limiting block 221b, and the limiting block 221b moves on the inner side of the limiting table 213 b.

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 the present embodiment, the upper positioning cylinder 1a and the lower supporting cylinder 1b are machined from a metal plate.

In this embodiment, the upper positioning cylinder 1a is provided with a plurality of tear seams 11a, and the tear seams 11a extend from the upper end of the upper positioning cylinder 1a to near the lower end thereof.

In the embodiment, the height of the water retaining guard cylinder 1c is 1-3 m.

The working principle of the utility model is as follows:

in the construction process of the cast-in-situ bored pile, after mechanical drilling is carried out on site, when the pile hole needs to be supported and fixed. Firstly, the supporting component 1 is installed in the pile hole, wherein the lower supporting cylinder 1b is arranged at the lower part of the pile hole for use, and the upper end of the lower supporting cylinder protrudes out of the ground. The upper positioning cylinder 1a is used at the upper part of the pile hole, and the upper positioning cylinder 1a is sleeved at the upper end of the lower supporting cylinder 1 b. Then will go up a location section of thick bamboo 1a and turn over the bending downwards and laminate with ground, install fixed component 2 in last location section of thick bamboo 1a through manual work or installation to make neck ring 2a be fixed in last location section of thick bamboo 2a inner wall through adjusting neck ring 2a of fixed component 2, and the inserted bar 2b of fixed component 2 passes go up a location section of thick bamboo 1a, and insert the ground soil horizon through inserted bar 2b and fix. Wherein the water retaining protective cylinder 1c is vertically arranged to play a role in retaining water. Then, send into the installation in the lower supporting cylinder 1b through dedicated installation device with fixed subassembly 2, adjust the neck ring 2a size of fixed subassembly 2 through installation device, enlarge when neck ring 2a, along with neck ring 2a grow the inserted bar 2b outwards expands and passes lower supporting cylinder 1b, installation device continues to adjust the size of neck ring 2a until with lower supporting cylinder 1b and the laminating of stake hole pore wall, and inserted bar 2b inserts and fixes in the soil layer of pore wall, and installation mechanism stop work. Repeating the above actions, sequentially installing a plurality of fixing assemblies 2 in the lower supporting cylinder 1b, directly pouring concrete after the installation is finished, and not needing to take out the supporting device.

Variations and modifications to the above-described embodiments may occur to those skilled in the art, which fall within the scope and spirit of the above description. 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 utility model.

Claims

1. The pile opening protection structure of the pile hole of the cast-in-place pile comprises a pile hole and is characterized in that a support component (1) is installed at the pile opening of the pile hole, the support component (1) comprises an upper positioning cylinder (1 a) and a lower supporting cylinder (1 b), the upper positioning cylinder (1 a) is of a horn-shaped structure with a large upper part and a small lower part, the lower supporting cylinder (1 b) is of a cylindrical structure, and the upper positioning cylinder (1 a) is sleeved at the upper end of the lower supporting cylinder (1 b) and is fixedly connected with the lower supporting cylinder (1 b); the lower support cylinder (1 b) extends into the pile hole and is fixedly connected with the side wall of the pile hole through a plurality of fixing components (2); the upper positioning cylinder (1 a) is folded outwards until the upper positioning cylinder is attached to the ground, and then is fixedly connected with the ground through the fixing component (2); the inner side of the upper end edge of the lower supporting cylinder (1 b) extends upwards to form a water retaining protective cylinder (1 c), and the water retaining protective cylinder (1 c) protrudes out of the ground.

2. A pile mouth guard structure of a bored pile hole according to claim 1, wherein the fixing member (2) comprises an adjustable collar (2 a) and a plurality of insert rods (2 b) movably mounted on the collar (2 a), one end of the collar (2 a) is fixedly provided with a collar head (2 c), and the other end passes through the collar head (2 c) and can be adjusted in a unidirectional amplification manner;

wherein, it runs through activity hole (21 c) at its both ends to open in collar head (2 c), be equipped with dogtooth (22 c) in activity hole (21 c), it is provided with tooth's socket (21 a) to correspond on collar (2 a), the free end of collar (2 a) passes activity hole (21 c) and through tooth's socket (21 a) on collar (2 a) and dogtooth (22 c) meshing in activity hole (21 c) fixed, one side that collar (2 a) deviates from the tooth's socket has the interval with between activity hole (21 c) the lateral wall, and when collar (2 a) expand, tooth's socket (21 a) can break away from dogtooth (22 c).

3. The pile mouth protection structure of a bored concrete pile hole according to claim 2, wherein said insert rod (2 b) is mounted on said collar (2 a) through a fixing sleeve (2 d), and said fixing sleeve (2 d) is formed with a limiting groove (21 d), said insert rod (2 b) comprises a body (21 b) and positioning blocks (22 b) disposed on two sides of the body (21 b), wherein the insert rod and the limiting groove are disposed on two opposite sides of the fixing sleeve.

4. The pile mouth protection structure of a bored concrete pile hole according to claim 3, wherein said body (21 b) is formed with an installation groove (211 b), said positioning block (22 b) is installed in said installation groove (211 b), and the front end of the positioning block (22 b) is pivotally installed in the installation groove (211 b), and the rear end is fixed in the installation groove (211 b) by a spring (212 b).

5. The pile mouth protection structure of a bored concrete pile hole according to claim 4, wherein a limit stop (213 b) is protruded from a lower side edge of a wall of the installation groove (211 b), a limit stop (221 b) is correspondingly protruded from a lower end of the positioning block (22 b), and the limit stop (221 b) moves inside the limit stop (213 b).

6. A pile mouth guard structure of bored concrete pile hole according to claim 5, characterized in that said collar (2 a) is provided with 4 sets of insert rods (2 b).

7. A pile mouth guard structure of a bored pile hole according to claim 1, wherein the upper positioning cylinder (1 a) and the lower supporting cylinder (1 b) are formed by processing a metal plate.

8. A pile mouth guard structure of a bored pile hole according to claim 1, wherein said upper positioning cylinder (1 a) is provided with a plurality of tear seams (11a), said tear seams (11a) extending from the upper end of the upper positioning cylinder (1 a) to near the lower end thereof.

9. The pile mouth protection structure of a bored concrete pile hole according to claim 1, wherein the height of the water retaining pile casing (1 c) is 1 to 3 m.