CN211258644U

CN211258644U - Preliminary bracing structure of underground works

Info

Publication number: CN211258644U
Application number: CN201921613172.0U
Authority: CN
Inventors: 骆英
Original assignee: Zhongrong Guocheng Construction Co ltd
Current assignee: Zhongrong Guocheng Construction Co ltd
Priority date: 2019-09-26
Filing date: 2019-09-26
Publication date: 2020-08-14
Anticipated expiration: 2029-09-26

Abstract

The utility model relates to an underground works preliminary bracing structure field specifically is an underground works's preliminary bracing structure, including the lateral wall ceiling, the first pillar of bottom fixedly connected with of lateral wall ceiling, a plurality of lateral wall fixed columns of lateral wall fixedly connected with of lateral wall ceiling, the curb plate fixed slot has been seted up to the both sides wall of first pillar, the inside of curb plate fixed slot is provided with the lateral wall board, one side fixedly connected with ceiling fixed plate of lateral wall ceiling, ceiling fixed plate fixedly connected with middle part ceiling. The utility model has the advantages that: adopt the concatenation design, through the cooperation between lateral wall ceiling, middle part ceiling and the support arm for this structural installation is simple swift, uses manpower sparingly, can dismantle after the use, reduces the wasting of resources, and very suitable underground works preliminary bracing imbeds underground works lateral wall with the lateral wall fixed column of the lateral wall fixed connection of lateral wall ceiling, and first pillar passes through bolt fixed connection in the bottom of lateral wall ceiling.

Description

Preliminary bracing structure of underground works

Technical Field

The utility model relates to an underground works preliminary bracing structure field, especially an underground works's preliminary bracing structure.

Background

At present, in urban central areas with dense buildings and heavy traffic, a large number of stratum pipe networks and ground buildings are required to be removed in open cut method construction of underground engineering, along with the increasing call of people for environmental protection and the increasing emphasis of governments on environmental protection, the open cut method which affects traffic and is not beneficial to environmental protection is not applicable, while the underground cut method is not used for completely excavating the ground above the underground engineering during construction, has less influence on the surrounding environment, and is particularly suitable for construction of urban underground engineering The support design is made by factors such as excavation method, surrounding rock exposure time and the like, and the existing primary support structure of the next project has the following problems:

1. the building steps are complicated, time and labor are wasted, the progress of the construction period is influenced, the built protection structure is not easy to dismantle, the manufacturing cost is high, and resources are seriously wasted;

2. the existing protective structure is large in occupied area, when the protective structure is built and meets a place with large deformation, the situation that the stress of a nut at the joint is too large and deforms can occur, and hidden dangers are brought to construction safety, so that the primary supporting structure of underground engineering is provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art's shortcoming, provide an underground works's preliminary bracing structure.

The purpose of the utility model is realized through the following technical scheme: a primary support structure of underground engineering comprises a side wall ceiling, wherein the bottom of the side wall ceiling is fixedly connected with a first support column, the side wall of the side wall ceiling is fixedly connected with a plurality of side wall fixing columns, side plate fixing grooves are formed in two side walls of the first support column, a side plate is arranged inside each side plate fixing groove, a ceiling fixing plate is fixedly connected to one side of the side wall ceiling, the ceiling fixing plate is fixedly connected with a middle ceiling, a first fixing plate is fixedly connected to the side surface, close to the side wall ceiling, of the middle ceiling, a second fixing plate is fixedly connected to the side surface, far away from the side wall ceiling, of the middle ceiling, a connecting hole is formed in the middle of the middle ceiling, a support connector is fixedly connected to the inside of the connecting hole, a support arm connecting hole is formed in, the support arm is fixedly connected to the top of the second support column.

Optionally, the bottom of the side wall ceiling is provided with a threaded hole, two side walls of the side wall ceiling are provided with sliding blocks which are attached to each other, the sliding blocks are provided with threaded holes, and the two side wall ceilings are fixedly connected through bolts.

Optionally, the top of the first pillar is provided with a threaded hole matched with the side wall ceiling, the first pillar and the side wall ceiling are fixedly connected through a bolt, the number of the side wall fixing columns is three, the tail ends of the three side wall fixing columns are conical, the specifications of the three side wall fixing columns are consistent, and the side wall fixing columns are inserted into the side wall of the underground engineering.

Optionally, the width and height of the side wall plate are the same as the width and height of the side plate fixing groove, and the length of the side wall plate is equal to the distance between the two first support columns.

Optionally, the width of the middle ceiling is equal to the side width of the side wall ceiling, the first fixing plate is matched with the ceiling fixing plate, the outer surfaces of the first fixing plate and the ceiling fixing plate are provided with matched threaded holes, and the first fixing plate and the ceiling fixing plate are fixedly connected through bolts.

Optionally, the number of the middle ceilings is determined according to the actual supporting area, and the two middle ceilings are fixedly connected through a first fixing plate and a second fixing plate by bolts.

Optionally, the connecting hole is internally provided with a thread, the top end of the support connector is provided with a thread matched with the connecting hole, the connecting hole is fixedly connected with the support connector through a thread, and the support arm is fixedly connected with the support arm connecting hole through a thread.

Optionally, there are a plurality of the support arms, the support arms are fixedly connected with each other through a tee or other connecting pieces, and the support arms are fixedly connected with each other in a crossing manner.

Optionally, the second pillar is fixedly connected to the cross connection of the support arm, and the bottom of the second pillar is fixedly connected to the ground of the underground engineering.

The utility model has the advantages of it is following:

1. the primary supporting structure of the underground engineering adopts a splicing design, the structure is simple and quick to install and saves manpower by matching between the side wall ceiling, the middle ceiling and the supporting arms, the primary supporting structure is detachable after being used, the resource waste is reduced, and the primary supporting structure is very suitable for the primary supporting of the underground engineering, when in use, the side wall fixing columns fixedly connected with the side walls of the side wall ceiling are embedded into the side walls of the underground engineering, then the first supporting columns are fixedly connected with the bottom of the side wall ceiling through bolts, after the fixing of the side wall ceiling is completed, the side wall plates are connected into the side plate fixing grooves, then the first fixing plate and the ceiling fixing plate are fixedly connected through the bolts, the middle ceiling is fixed, then the supporting connectors and the connecting holes on the middle ceiling are fixed, a middle supporting structure is formed by welding the supporting arms, and then the acting points of the middle supporting, the construction of the whole structure is completed, the structure is convenient to construct, the size and the area of the structure can be flexibly adjusted, and the middle part of the structure is reserved with empty space for construction operation, so that the structure is suitable for being repeatedly used in underground engineering.

2. This underground works's primary support structure, its supporting area size is adjustable, and does not need too big supporting area, has reduced the area of building protective structure and using to at the lateral wall fixedly connected with lateral wall fixed column of lateral wall ceiling, reduced the power that the lateral wall ceiling receives, reduced the too big danger of collapsing that leads to of ceiling atress.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a front view of the present invention;

FIG. 3 is a schematic structural view of the side wall ceiling of the present invention;

fig. 4 is a schematic structural view of a first support column of the present invention;

FIG. 5 is a schematic structural view of the middle ceiling of the present invention;

fig. 6 is a schematic structural diagram of the support connector of the present invention.

In the figure: 1-side wall ceiling, 2-first support column, 3-side wall fixing column, 4-side plate fixing groove, 5-side wall plate, 6-ceiling fixing plate, 7-middle ceiling, 8-first fixing plate, 9-second fixing plate, 10-connecting hole, 11-support connector, 12-support arm connecting hole, 13-support arm and 14-second support column.

Detailed Description

The invention will be further described with reference to the accompanying drawings, but the scope of the invention is not limited to the following description.

As shown in fig. 1 to 6, a preliminary bracing structure for underground works comprises a sidewall ceiling 1, a first pillar 2 fixedly connected to the bottom of the sidewall ceiling 1, a plurality of sidewall fixing columns 3 fixedly connected to the sidewall of the sidewall ceiling 1, a sidewall fixing groove 4 formed on both sidewalls of the first pillar 2, a sidewall plate 5 disposed inside the sidewall fixing groove 4, a ceiling fixing plate 6 fixedly connected to one side of the sidewall ceiling 1, a middle ceiling 7 fixedly connected to the ceiling fixing plate 6, a first fixing plate 8 fixedly connected to a side of the middle ceiling 7 close to the sidewall ceiling 1, a second fixing plate 9 fixedly connected to a side of the middle ceiling 7 far from the sidewall ceiling 1, a connecting hole 10 formed in the middle of the middle ceiling 7, a supporting connector 11 fixedly connected to the inside of the connecting hole 10, a supporting arm connecting hole 12 formed on an end of the supporting connector 11 far from the connecting, the support arm 13 is fixedly connected to the inside of the support arm connecting hole 12, and the support arm 13 is fixedly connected to the top of the second support column 14.

As a preferred technical scheme of the utility model, the bottom of the side wall ceiling 1 is provided with a threaded hole, two side walls of the side wall ceiling 1 are provided with sliders which are attached to each other, the threaded hole is formed on the slider, two side wall ceilings 1 are fixedly connected through a bolt, the top of the first strut 2 is provided with a threaded hole which is matched with the side wall ceiling 1, the first strut 2 is fixedly connected with the side wall ceiling 1 through a bolt, the number of the side wall fixing columns 3 is three, the tail ends of the three side wall fixing columns 3 are conical, the specifications of the three side wall fixing columns 3 are consistent, the side wall fixing columns 3 are inserted into the side wall of the underground engineering, the width and height of the side wall plate 5 are the same as the width and height of the side wall fixing groove 4, the length of the side wall plate 5 is equal to the distance between the two first struts 2, the material of the side wall plate 5, the middle ceiling 7 is only used for preventing side wall falling rocks or falling soil, the width of the middle ceiling 7 is equal to the side width of the side wall ceiling 1, the first fixing plate 8 is matched with the ceiling fixing plate 6, the outer surfaces of the first fixing plate 8 and the ceiling fixing plate 6 are provided with matched threaded holes, the first fixing plate 8 is fixedly connected with the ceiling fixing plate 6 through bolts, the number of the middle ceilings 7 is determined according to the actual supporting area, the two middle ceilings 7 are fixedly connected through the first fixing plate 8 and the second fixing plate 9 through bolts, the first fixing plate 8, the second fixing plate 9 and the ceiling fixing plate 6 are equal in size, only the fixed positions are different and are matched with each other, the inside of the connecting hole 10 is provided with threads, the size of the top end of the supporting connector 11 is matched with the size of the connecting hole 10, the top end of the supporting connector 11 is provided with threads matched with the top end of the supporting, through screw thread fixed connection between support arm 13 and the support arm connecting hole 12, support arm 13 has a plurality ofly, support arm 13 is cylindrical steel pipe, its specification size is selected according to actual conditions, through tee bend or other connecting piece fixed connection between the support arm 13, also can adopt the welded form to carry out fixed connection, cross fixed connection between a plurality of support arms 13, form even atress structure, its middle part stress point fixed connection is in second pillar 14 top, second pillar 14 fixed connection is in support arm 13 cross connection department, the bottom fixed connection of second pillar 14 and underground works's ground, can adopt muddy earth foundation pile or other fixed modes to fix.

The working process of the utility model is as follows: during the use, imbed the underground works lateral wall with lateral wall fixed column 3 of the lateral wall fixed connection of lateral wall ceiling 1, then pass through bolt fixed connection with first pillar 2 in the bottom of lateral wall ceiling 1, treat that the fixed back of accomplishing of lateral wall ceiling 1, connect lateral wall board 5 in 4 insides of lateral wall fixed slot, then pass through bolt fixed connection with first fixed plate 8 and ceiling fixed plate 6, accomplish the fixed of middle part ceiling 7, then will support connecting hole 10 on connector 11 and the middle part ceiling 7 fixed, form through welding support arm 13, form middle part bearing structure, then with its impetus fixed connection at the top of second pillar 14, accomplish overall structure's the buildding.

In conclusion, the primary support structure of the underground engineering adopts a splicing design, the structure is simple and quick to install and saves labor through the matching among the side wall ceiling 1, the middle ceiling 7 and the supporting arms 13, the primary support structure is detachable after being used, the primary support structure is very suitable for the primary support of the underground engineering, when in use, the side wall fixing columns 3 fixedly connected with the side walls of the side wall ceiling 1 are embedded into the side walls of the underground engineering, then the first supporting columns 2 are fixedly connected with the bottom of the side wall ceiling 1 through bolts, after the side wall ceiling 1 is fixed, the side wall plates 5 are connected into the side plate fixing grooves 4, then the first fixing plates 8 are fixedly connected with the ceiling fixing plates 6 through bolts, the middle ceiling 7 is fixed, then the supporting connectors 11 and the connecting holes 10 on the middle ceiling 7 are fixed, and the middle supporting structure is formed through the welding of the supporting arms 13, then with its impetus fixed connection at the top of second pillar 14, accomplish overall structure's the construction, this structure is built conveniently, and its big small area can be adjusted in a flexible way, is fit for underground works used repeatedly, and its size is adjustable, and does not need too big supporting area, has reduced the area of building protective structure and using to at the lateral wall fixedly connected with lateral wall fixed column 3 of lateral wall ceiling 1, reduced the power that the lateral wall ceiling received, reduced the danger of collapsing that the ceiling atress is too big and lead to.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an underground works's preliminary bracing structure which characterized in that: the novel ceiling comprises a side wall ceiling (1), wherein the bottom of the side wall ceiling (1) is fixedly connected with a first support column (2), the side wall of the side wall ceiling (1) is fixedly connected with a plurality of side wall fixing columns (3), two side walls of the first support column (2) are provided with side plate fixing grooves (4), a side plate (5) is arranged inside the side plate fixing grooves (4), one side of the side wall ceiling (1) is fixedly connected with a ceiling fixing plate (6), the ceiling fixing plate (6) is fixedly connected with a middle ceiling (7), the side face, close to the side wall ceiling (1), of the middle ceiling (7) is fixedly connected with a first fixing plate (8), the side face, far away from the side wall ceiling (1), of the middle ceiling (7) is fixedly connected with a second fixing plate (9), the middle of the middle ceiling (7) is provided with a connecting hole (10), and the inside, support arm connecting hole (12) have been seted up to the one end of keeping away from connecting hole (10) of support connector (11), the inside fixedly connected with support arm (13) of support arm connecting hole (12), support arm (13) fixed connection is in the top of second pillar (14).

2. A preliminary bracing structure for underground works according to claim 1, wherein: the bottom of the side wall ceiling (1) is provided with a threaded hole, two side walls of the side wall ceiling (1) are provided with sliding blocks which are attached to each other, the sliding blocks are provided with threaded holes, and the two side wall ceilings (1) are fixedly connected through bolts.

3. A preliminary bracing structure for underground works according to claim 1, wherein: the top of the first support column (2) is provided with a threaded hole matched with the side wall ceiling (1), the first support column (2) is fixedly connected with the side wall ceiling (1) through bolts, the number of the side wall fixing columns (3) is three, the tail ends of the three side wall fixing columns (3) are conical, the specifications of the three side wall fixing columns (3) are consistent, and the side wall fixing columns (3) are inserted into the side wall of the underground engineering.

4. A preliminary bracing structure for underground works according to claim 1, wherein: the width and the height of the side wall plate (5) are the same as the width and the height of the side plate fixing groove (4), and the length of the side wall plate (5) is equal to the distance between the two first supporting columns (2).

5. A preliminary bracing structure for underground works according to claim 1, wherein: the width of middle part ceiling (7) equals with lateral wall ceiling (1) side width, first fixed plate (8) and ceiling fixed plate (6) phase-match, assorted screwed hole has been seted up to the surface of first fixed plate (8) and ceiling fixed plate (6), pass through bolt fixed connection between first fixed plate (8) and the ceiling fixed plate (6).

6. A preliminary bracing structure for underground works according to claim 1, wherein: the number of the middle ceilings (7) is determined according to the actual supporting area, and the two middle ceilings (7) are fixedly connected through a first fixing plate (8) and a second fixing plate (9) through bolts.

7. A preliminary bracing structure for underground works according to claim 1, wherein: the thread is arranged inside the connecting hole (10), the thread matched with the connecting hole is arranged at the top end of the supporting connector (11), the connecting hole (10) is fixedly connected with the supporting connector (11) through the thread, and the supporting arm (13) is fixedly connected with the supporting arm connecting hole (12) through the thread.

8. A preliminary bracing structure for underground works according to claim 1, wherein: the supporting arms (13) are multiple, the supporting arms (13) are fixedly connected through a tee joint or other connecting pieces, and the supporting arms (13) are in cross fixed connection.

9. A preliminary bracing structure for underground works according to claim 1, wherein: the second support column (14) is fixedly connected to the cross connection position of the support arm (13), and the bottom of the second support column (14) is fixedly connected to the ground of underground engineering.