CN211623445U

CN211623445U - Assembled tunnel surrounding rock supporting construction

Info

Publication number: CN211623445U
Application number: CN201921616283.7U
Authority: CN
Inventors: 童智能; 严兵; 乐腾胜; 梁荣柱; 范玲玲
Original assignee: Jiangxi Science and Technology Normal University
Current assignee: Jiangxi Science and Technology Normal University
Priority date: 2019-09-26
Filing date: 2019-09-26
Publication date: 2020-10-02
Anticipated expiration: 2029-09-26

Abstract

The utility model discloses an assembled tunnel country rock supporting construction, include the bottom plate, go up bow member and support frame, the bottom of going up the bow member is provided with the bottom plate, go up the inside top fixed mounting of bow member has the support frame, the bolt fastening has two second support columns between support frame and the bottom plate, and two second support columns are symmetrical about the vertical central line of support frame each other, support frame and last bow member top center department fixed mounting have first support column. The utility model discloses in, be provided with the first support column of support frame cooperation, can support the arch top of last bow member, and be provided with the second support column between support frame and the bottom plate, make the atress of support frame can disperse on the bottom plate, the intensity of support frame has been improved, and be provided with a plurality of side wall support column between second support column and the two vertical walls of last bow member, form the triangular structure, make this assembled tunnel country rock supporting construction can also support the side wall, the stability and the supporting effect of whole tunnel country rock structure have been improved.

Description

Assembled tunnel surrounding rock supporting construction

Technical Field

The utility model relates to a tunnel country rock supporting technical field especially relates to an assembled tunnel country rock supporting construction.

Background

Tunnels are engineering structures buried in the ground and are a form of human use of underground space. After the tunnel is excavated, necessary supporting structures are required to be constructed in order to effectively restrain and control the deformation of the surrounding rock, strengthen the stability of the surrounding rock, ensure the construction safety, ensure the stability and durability in the operation process, reduce the ventilation resistance and beautify the whole body. Surrounding rock stress obtains abundant release behind the tunnel excavation, and the weak stress that can make tunnel surrounding rock of surrounding rock supporting construction worsens, and the surrounding rock is out of shape the aggravation, and the surrounding rock structure is easily destroyed, so the tunnel subsides the incidence great, has aggravated the risk of tunnel construction, often causes the settlement of tunnel surrounding environment to exceed standard, causes earth's surface building destruction or earth's surface to collapse even.

Present tunnel country rock supporting construction, simple structure is provided with the support frame at the top in tunnel generally, supports tunnel country rock, and the side wall lacks bearing structure, and secondly the general snap-on of support frame is on the tunnel bow member, and the holding power of support frame is less, has again to lack crashproof structure, so can not satisfy user's demand.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the shortcoming that exists among the prior art, and the assembled tunnel country rock supporting construction who provides.

In order to achieve the above purpose, the utility model adopts the following technical scheme: an assembled tunnel surrounding rock supporting structure comprises a bottom plate, an upper arch frame and a supporting frame;

a bottom plate is arranged at the bottom of the upper arch frame, a support frame is fixedly arranged at the top inside the upper arch frame, two second support columns are fixed between the support frame and the bottom plate through bolts, the two second support columns are symmetrical with each other about a vertical central line of the support frame, and a first support column is fixedly arranged at the center of the top of the support frame and the top of the upper arch frame;

and the two second supporting columns are respectively installed between the two second supporting columns and the side walls of the upper arch in the two vertical directions, and one side, far away from the side wall supporting columns, of each second supporting column is fixedly provided with an anti-collision plate through a spring.

Preferably, the side wall support columns are provided with a plurality of side wall support columns, and the side wall support columns are divided into two groups and are respectively arranged in the space formed by the two second support columns and the two vertical walls of the upper arch frame.

Preferably, the top of the anti-collision plate is in sliding connection with a first sliding groove formed in the supporting frame through a first sliding block, and the bottom of the anti-collision plate is in sliding connection with a second sliding groove formed in the bottom plate through a second sliding block.

Preferably, the inner surface wall of the upper arch is provided with a diversion trench, the bottom plate is provided with a water drainage trench, and the water drainage trench is in conduction connection with the diversion trench through a connection trench.

Preferably, the number of the anti-collision plates is two, and the two anti-collision plates are symmetrical to each other about a vertical center line of the support frame.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses in, this assembled tunnel country rock supporting construction, at first, be provided with the first support column of support frame cooperation, can support the arch top of last bow member, and be provided with the second support column between support frame and the bottom plate, make the atress of support frame can disperse to the bottom plate on, the intensity of support frame structure has been improved, and be provided with a plurality of side wall support column between second support column and the two vertical walls of last bow member, form the triangular structure, make this assembled tunnel country rock supporting construction can also support the side wall, the stability and the supporting effect of whole tunnel country rock structure have been improved.

2. This assembled tunnel country rock supporting construction is provided with the anticollision board, and the anticollision board passes through the spring to be fixed on the second support column, through the setting of spring for the anticollision board possesses the ability of certain elastic buffer anticollision, can effectually carry out collision avoidance to this assembled tunnel country rock supporting construction.

Drawings

Fig. 1 is a schematic structural view of an assembled tunnel surrounding rock supporting structure provided by the utility model;

fig. 2 is a schematic structural view of an anti-collision plate of an assembled tunnel surrounding rock supporting structure provided by the utility model;

fig. 3 is a schematic structural view of an upper arch of an assembled tunnel surrounding rock supporting structure provided by the utility model;

fig. 4 is the utility model provides a structural schematic of assembled tunnel country rock supporting construction's bottom plate.

Illustration of the drawings:

1. a base plate; 2. an upper arch frame; 3. a support frame; 4. a first support column; 5. a second support column; 6. side wall support columns; 7. an anti-collision plate; 8. a spring; 9. a first chute; 10. a first slider; 11. a second slider; 12. a second chute; 13. a diversion trench; 14. a water discharge tank; 15. and connecting the grooves.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work 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", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-4, an assembled tunnel surrounding rock supporting structure comprises a bottom plate 1, an upper arch 2 and a supporting frame 3;

a bottom plate 1 is arranged at the bottom of an upper arch frame 2, a support frame 3 is fixedly arranged at the top inside the upper arch frame 2, two second support columns 5 are fixed between the support frame 3 and the bottom plate 1 through bolts, the two second support columns 5 are mutually symmetrical about the vertical central line of the support frame 3, and a first support column 4 is fixedly arranged at the center of the top of the support frame 3 and the top of the upper arch frame 2;

two second support columns 5 are respectively provided with a side wall support column 6 between the two vertical side walls of the upper arch centering 2, and one side of the second support column 5 far away from the side wall support column 6 is fixed with an anti-collision plate 7 through a spring 8.

Referring to fig. 1, the side wall supporting columns 6 are provided with a plurality of side wall supporting columns 6, and the side wall supporting columns 6 are divided into two groups and respectively arranged in the space formed by the two second supporting columns 5 and the two vertical walls of the upper arch 2.

Referring to fig. 1 and 2, the top of each anti-collision plate 7 is slidably connected to a first sliding groove 9 formed in the support frame 3 through a first sliding block 10, the bottom of each anti-collision plate 7 is slidably connected to a second sliding groove 12 formed in the bottom plate 1 through a second sliding block 11, two anti-collision plates 7 are arranged, and the two anti-collision plates 7 are symmetrical to each other about a vertical center line of the support frame 3.

Referring to fig. 1, 3 and 4, the inner surface wall of the upper arch 2 is provided with a diversion trench 13, the bottom plate 1 is provided with a drainage trench 14, the drainage trench 14 is in conduction connection with the diversion trench 13 through a connection trench 15, and the diversion trench 13 and the drainage trench 14 are arranged and used for discharging accumulated water and gasified water drops in the surrounding rock tunnel.

The working principle is as follows: when the assembled tunnel surrounding rock supporting structure is used, firstly, a supporting frame 3 is arranged to be matched with a first supporting column 4, can support the arched top of the upper arch centering 2, and a second supporting column 5 is arranged between the supporting frame 3 and the bottom plate 1, so that the stress of the supporting frame 3 can be dispersed on the bottom plate 1, the strength of the supporting frame 3 is improved, and a plurality of side wall supporting columns 6 are arranged between the second supporting column 5 and two vertical walls of the upper arch centering 2 to form a triangular structure, so that the assembled tunnel surrounding rock supporting structure can also support the side wall, the strength and the supporting effect of the whole tunnel surrounding rock are improved, and an anti-collision plate 7 is arranged, the anti-collision plate 7 is fixed on the second support column 5 through a spring 8, through the setting of spring 8 for crashproof board 7 possesses the ability of certain elastic buffer anticollision, can effectually carry out collision avoidance to this assembled tunnel country rock supporting construction.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. An assembled tunnel surrounding rock supporting structure is characterized by comprising a bottom plate (1), an upper arch frame (2) and a supporting frame (3);

a bottom plate (1) is arranged at the bottom of the upper arch frame (2), a support frame (3) is fixedly installed at the top inside the upper arch frame (2), two second support columns (5) are fixed between the support frame (3) and the bottom plate (1) through bolts, the two second support columns (5) are mutually symmetrical about a vertical central line of the support frame (3), and a first support column (4) is fixedly installed at the center of the tops of the support frame (3) and the upper arch frame (2);

two second support columns (5) respectively with last bow member (2) install between the lateral wall of two vertical directions side wall support column (6), one side that side wall support column (6) were kept away from in second support column (5) is fixed with crashproof board (7) through spring (8).

2. An assembled tunnel surrounding rock supporting structure according to claim 1, wherein the side wall supporting columns (6) are provided in a plurality, and the plurality of side wall supporting columns (6) are divided into two groups, and are respectively provided in spaces formed by the two second supporting columns (5) and the two vertical walls of the upper arch (2).

3. The assembled tunnel surrounding rock supporting structure according to claim 1, wherein the top of the anti-collision plate (7) is slidably connected with a first sliding groove (9) formed in the supporting frame (3) through a first sliding block (10), and the bottom of the anti-collision plate (7) is slidably connected with a second sliding groove (12) formed in the bottom plate (1) through a second sliding block (11).

4. The assembled tunnel surrounding rock supporting structure according to claim 1, wherein the inner surface wall of the upper arch (2) is provided with a diversion trench (13), the bottom plate (1) is provided with a drainage trench (14), and the drainage trench (14) is in conduction connection with the diversion trench (13) through a connection trench (15).

5. Assembled tunnel surrounding rock supporting construction according to claim 1, characterized in that there are two in total the fender panels (7), and the two fender panels (7) are symmetrical to each other about the vertical center line of the support frame (3).