CN212077956U

CN212077956U - Supporting structure of foundation pit supporting system

Info

Publication number: CN212077956U
Application number: CN202020440649.6U
Authority: CN
Inventors: 赵星; 吕延豪; 王金龙; 毛良根; 游龙飞; 张海涛; 王一博; 蔡兴瑞; 邓林恒; 娄英豪; 杨龙
Original assignee: China Railway Siyuan Survey and Design Group Co Ltd
Current assignee: China Railway Siyuan Survey and Design Group Co Ltd
Priority date: 2020-03-30
Filing date: 2020-03-30
Publication date: 2020-12-04
Anticipated expiration: 2030-03-30

Abstract

The application discloses bearing structure of excavation supporting system includes: at least two support columns; and two adjacent support columns are detachably connected through the connecting piece, and two ends of the support columns which are connected into a whole are respectively connected with the enclosure body of the foundation pit supporting system. The supporting structure of foundation pit supporting system of this application has simple structure, and convenient construction is swift and can recycle's advantage.

Description

Supporting structure of foundation pit supporting system

Technical Field

The application relates to the technical field of construction engineering, in particular to a supporting structure of a foundation pit supporting system.

Background

With the high-speed development of traffic construction, a large number of construction projects such as newly-built roads and rail transit correspondingly have a large amount of requirements, and the construction projects generally have the characteristic of complex environmental conditions, so that methods such as open excavation of deep foundation pits can be involved, and further, a deep foundation pit supporting mechanism can be widely applied.

In the prior art, a concrete supporting structure is a commonly used supporting structure in foundation pit engineering, has the advantages of high specific rigidity, strong deformation resistance and good integrity, and needs to be cast by a formwork on site. Therefore, the problems that the supporting structure is complex to install and cannot be recycled exist in the prior art.

SUMMERY OF THE UTILITY MODEL

In view of this, the embodiments of the present application are expected to provide a supporting structure of a foundation pit supporting system, so as to solve the problem that the supporting structure is complex to install and cannot be recycled.

To achieve the above object, an embodiment of the present application provides a supporting structure of a foundation pit supporting system, including:

at least two support columns; and

and two adjacent support columns are detachably connected through the connecting piece, and two ends of the support columns which are connected into a whole are respectively connected with the enclosure body of the foundation pit supporting system.

Further, the support column includes:

at least one intermediate support column; and

and the end supporting columns are arranged at two ends of the middle supporting column which is connected into a whole, and the end supporting columns are connected with the enclosure body.

Further, the connecting piece is in threaded connection with the supporting column.

Further, the support column comprises a support pipe section and a first steel pipe with threads, wherein the first steel pipe is arranged at least one end of the support pipe section; the connecting piece is the second steel pipe that both ends have the screw thread, second steel pipe both ends respectively with adjacent the support column first steel pipe threaded connection.

Further, the screw thread of first steel pipe is the internal thread, the both ends of second steel pipe are the external screw thread, are force application portion between the both ends external screw thread.

Further, the screw thread of first steel pipe is the external screw thread, the both ends of second steel pipe are the internal thread.

Furthermore, the support column also comprises an embedded part, one end of the embedded part is connected with the support pipe joint positioned at the end part of the support column which is connected into a whole, and the other end of the embedded part is connected with the enclosure body.

Further, the embedded part is a steel lattice component.

Further, the support column is a precast concrete column;

further, the support column is of a hollow structure.

The utility model provides a supporting structure of excavation supporting system, including two at least support columns and connecting piece, connect through connecting piece detachably between two adjacent support columns, connect into the both ends of holistic support column and be connected with excavation supporting system's enclosure respectively. The supporting structure of foundation pit supporting system of this application has simple structure, and convenient construction is swift and can recycle's advantage.

Drawings

FIG. 1 is a schematic structural view of a support structure according to an embodiment of the present disclosure;

FIG. 2 is an enlarged view taken at A in FIG. 1;

FIG. 3 is an enlarged view at B of FIG. 1, with the support post prior to assembly;

FIG. 4 is an enlarged view at B of FIG. 1, with the support posts assembled;

FIG. 5 is a partial cross-sectional view of C-C of FIG. 2;

FIG. 6 is a partial cross-sectional view of D-D of FIG. 2;

FIG. 7 is a partial cross-sectional view of E-E of FIG. 3;

FIG. 8 is a partial cross-sectional view of F-F in FIG. 3;

FIG. 9 is a partial cross-sectional view of G-G of FIG. 3; and

fig. 10 is a partial sectional view of H-H in fig. 3.

Description of the reference numerals

1. A support pillar; 2. a connecting member; 3. an enclosure; 10. a middle support column; 11. an end support post; 12. supporting the pipe section; 13. a first steel pipe; 14. embedding parts; 20. a second steel pipe; 200. an external thread; 201. a force application part.

Detailed Description

It should be noted that, in the present application, technical features in examples and embodiments may be combined with each other without conflict, and the detailed description in the specific embodiment should be understood as an explanation of the gist of the present application and should not be construed as an improper limitation to the present application.

The directional terms used in the description of the present application are intended only to facilitate the description of the application and to simplify the description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered limiting of the application.

The embodiment of the application provides a supporting structure of a foundation pit supporting system, as shown in fig. 1, the supporting structure comprises at least two supporting columns 1 and a connecting piece 2, the two adjacent supporting columns 1 are detachably connected through the connecting piece 2, and two ends of the supporting column 1 which is connected into a whole are respectively connected with an enclosure body 3 of the foundation pit supporting system.

In the supporting structure of the foundation pit supporting system provided by the embodiment of the application, the number of the supporting columns 1 can be configured as required, for example, two or more. Connecting piece 2 connects into a whole with all support columns 1 of bearing structure, and the installation is simple swift, and connecting piece 2 is detachably connected, uses when bearing structure and accomplishes the back, disassembles support column 1 and connecting piece 2 to wait reuse next time. Therefore, the supporting structure of the foundation pit supporting system provided by the embodiment of the application has the advantages of being simple in structure, convenient and fast to construct and capable of being recycled.

In one embodiment, referring to fig. 1, the supporting columns 1 comprise at least one intermediate supporting column 10 and end supporting columns 11, the end supporting columns 11 are arranged at two ends of the integrally connected intermediate supporting column 10, and the end supporting columns 11 are connected with the enclosure 3. The supporting structure of excavation supporting system that this application embodiment provided can confirm the quantity of intermediate strut post 10 according to actual conditions, and when the intermediate strut lived for a plurality ofly, adjacent intermediate strut post 10 passes through 2 detachably interconnect of connecting piece, and interconnect becomes the both ends and the tip support column 11 detachably connection of holistic intermediate strut post 10, forms holistic support column 1.

Referring to fig. 1 and 3, in the supporting structure of the foundation pit supporting system provided in the embodiment of the present application, the connecting member 2 is in threaded connection with the supporting column 1. Between the support column 1, through connecting piece 2 threaded connection each other, adopt threaded connection, the installation is simple more swift, and the installation back structure is firm.

In one embodiment, referring to fig. 1 to 4, 7 and 8, the support column 1 includes a support pipe section 12 and a first steel pipe 13 having threads, and the first steel pipe 13 is disposed at least one end of the support pipe section 12. The connecting piece 2 is a second steel pipe 20 with threads at two ends, and the two ends of the second steel pipe 20 are respectively in threaded connection with the first steel pipes 13 of the adjacent supporting columns 1. First steel pipes 13 are arranged at two ends of a supporting pipe joint 12 of the middle supporting column 10, and the first steel pipes 13 are arranged at one end of the supporting pipe joint 12 of the end supporting column 11. Preferably, the first steel pipe 13 is pre-embedded in the support pipe joint 12. The connecting piece 2 is a second steel pipe 20 with threads matched with the threads of the first steel pipe 13 at two ends, and the two adjacent support columns 1 are detachably connected with the first steel pipe 13 through the second steel pipe 20 in a threaded mode to form a whole.

Specifically, as shown in fig. 9 and 10, the thread of the first steel pipe 13 is an internal thread, the two ends of the second steel pipe 20 are external threads 200, and a force application part 201 is provided between the external threads 200. During installation, two ends of the second steel pipe 20 are respectively aligned with the first steel pipes 13 of two adjacent support columns 1, and the adjacent support columns 1 are in threaded connection through the matching of the second steel pipe 20 and the first steel pipes 13 by rotating the force application part 201.

Specifically, the thread of the first steel pipe 13 is an external thread 200, and both ends of the second steel pipe 20 are internal threads.

In an embodiment, referring to fig. 1, 2, 5 and 6, the supporting column 1 further includes an embedded part 14, one end of the embedded part 14 is connected to the supporting pipe joint 12 at the end of the integrally connected supporting column 1, and the other end of the embedded part 14 is connected to the enclosure 3. According to the supporting structure of the foundation pit supporting system, the end supporting columns 11 and the middle supporting room are connected into a whole through the connecting pieces 2 in a threaded mode, the supporting pipe sections 12 at the ends of the supporting columns 1 connected into the whole are connected with the enclosure body 3 through the embedded parts 14, and namely one ends of the end supporting columns 11 are connected with the enclosure body 3 through the embedded parts 14. Preferably, the embedment 14 is a steel grid member.

In the supporting structure of the foundation pit supporting system provided by the embodiment of the application, the supporting columns 1 are precast concrete columns. The concrete column has the advantages of high rigidity, strong deformation resistance and good integrity. And the prefabricated concrete column is prefabricated in a factory in advance to form a supporting force, so that the supporting force can be quickly formed, the deformation of the foundation pit can be quickly controlled for a long time, the foundation pit can be recycled, the construction progress is quick, and the problems that the installation is complicated and the recovery cannot be realized are solved.

In one embodiment, the supporting column 1 is a hollow structure. Under the prerequisite of guaranteeing that support column 1 intensity is enough, support column 1 designs for hollow structure, alleviates support column 1's weight, improves the convenience and more economical and reasonable of bearing structure installation.

In one embodiment, after the supporting structure is used, the steel lattice member is cut to separate the supporting structure from the enclosure body 3, the force application part 201 of the second steel pipe 20 is rotated to disassemble the supporting structure into the supporting column 1 and the second steel pipe 20, and the supporting structure is stored and recycled. When the support column is needed to be used again, the support columns 1 are connected into a whole through the second steel pipe 20 in a threaded mode to form the support structure. And welding the steel lattice component in the lengthened support column 1, placing the reassembled support structure at the preset position of the enclosure body 3 of the foundation pit support system, and casting the free end of the steel lattice component and the crown beam of the enclosure body 3 into a whole in site, so that the steel lattice component can be put into use again. Therefore, the supporting structure of the foundation pit supporting system provided by the embodiment of the application is erected in foundation pit engineering after being assembled on site through the supporting columns 1 and the connecting pieces 2 of the prefabricated supporting structure in a factory, has high rigidity, can form supporting force quickly, quickly controls foundation pit deformation for a long time, can be recycled, is quick in construction progress, and solves the problems that in the prior art, installation is complex and recycling cannot be achieved.

The various embodiments/implementations provided herein may be combined with each other without contradiction.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A supporting structure of a foundation pit supporting system is characterized by comprising:

at least two support columns; and

2. The support structure of claim 1, wherein the support column comprises:

at least one intermediate support column; and

3. The support structure of claim 1, wherein the connector is threaded with the support column.

4. The support structure of claim 3, wherein the support column comprises a support tube section and a first steel tube having threads, the first steel tube being disposed at least one end of the support tube section; the connecting piece is the second steel pipe that both ends have the screw thread, second steel pipe both ends respectively with adjacent the support column first steel pipe threaded connection.

5. The support structure of claim 4, wherein the threads of the first steel pipe are internal threads, the two ends of the second steel pipe are external threads, and a force application part is arranged between the external threads at the two ends; or the like, or, alternatively,

the screw thread of first steel pipe is the external screw thread, the both ends of second steel pipe are the internal thread.

6. The support structure of claim 4, wherein the support columns further comprise embedment members, one ends of which are connected to the support pipe sections at the ends of the integrally connected support columns, and the other ends of which are connected to the enclosure.

7. The support structure of claim 6, wherein the embedment is a steel grid member.

8. The support structure of any one of claims 1 to 7, wherein the support columns are precast concrete columns; and/or the supporting column is of a hollow structure.