CN211734897U - Support structure attached to mountain cliff for supporting tunnel - Google Patents
Support structure attached to mountain cliff for supporting tunnel Download PDFInfo
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- CN211734897U CN211734897U CN201922097224.XU CN201922097224U CN211734897U CN 211734897 U CN211734897 U CN 211734897U CN 201922097224 U CN201922097224 U CN 201922097224U CN 211734897 U CN211734897 U CN 211734897U
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Abstract
The utility model relates to an adhere to in support structure that mountain cliff supplied support tunnel, treat that a part of the tunnel that forms is located the outside cliff of mountain, this bearing structure includes: removing the surface of the cliff to form an attachment surface on the cliff; pouring a support wall formed on the attachment surface, wherein the bottom of the support wall is supported on the ground, and the top of the support wall forms a platform surface for construction and supporting the tunnel; and the bias wall is built on the platform surface and is attached to one side, far away from the mountain, of the tunnel. The utility model discloses solved the problem of cliff department tunnel's bearing structure construction difficulty effectively, can not increase the burden to the rock stratum, for the protection that the tunnel provided powerful support, avoid the tunnel to take place the phenomenon of collapsing, guarantee the construction quality in tunnel.
Description
Technical Field
The utility model relates to a building construction field refers in particular to a support structure who adheres to in mountain cliff and supplies to support tunnel.
Background
In the process of building a tunnel in a mountain, due to the limitation of terrain conditions, the side part of the tunnel is a cliff, and rock strata on the cliff are broken and weathered, so that the tunnel is not provided with a stable and reliable mountain, if a bias wall is directly constructed on the rock strata on the side of the tunnel, the tunnel cannot be supported and protected, the rock strata are also burdened, the phenomenon of collapse occurs, even the structure of the tunnel is affected, and the construction quality of the tunnel cannot be guaranteed.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art's defect, provide a support structure who adheres to mountain cliff and supplies support tunnel, solved the problem of cliff department tunnel's bearing structure construction difficulty, can not increase the burden to the rock stratum, for the protection that the tunnel provided powerful support, avoid the tunnel to take place the phenomenon of collapsing, guarantee the construction quality in tunnel.
The technical scheme for realizing the purpose is as follows:
the utility model provides a support structure who adheres to mountain cliff confession support tunnel treats that a part of the tunnel that forms is located the outside cliff of mountain, and this support structure includes:
removing the surface of the cliff to form an attachment surface on the cliff;
pouring a support wall formed on the attachment surface, wherein the bottom of the support wall is supported on the ground, and the top of the support wall forms a platform surface for construction and supporting the tunnel; and
build in the platform face and laminate in the tunnel and keep away from the bias voltage wall of massif one side.
The utility model discloses an adhere to in the bearing structure that the mountain cliff supplied support tunnel, pour through the adhesion surface along the mountain cliff and form the knee wall, and the tunnel of being under construction on the platform face at knee wall top, make the tunnel expose the part of the mountain and form on the platform face, and then construct bias voltage wall on the platform face with effect top thrust and tunnel, and this top thrust offsets with the pressure that the mountain acted on the tunnel, thereby guarantee this tunnel construction's stability, the problem of bearing structure construction difficulty in the tunnel of cliff department has been solved, can not increase the burden to the stratum, provide the protection of powerful support for the tunnel, avoid the tunnel to take place the phenomenon of collapsing, guarantee the construction quality in tunnel.
The utility model discloses adhere to in mountain cliff and supply support structure's in support tunnel's further improvement lie in, should adhere to and personally submit the echelonment.
The utility model discloses adhere to in mountain cliff and supply the bearing structure's in support tunnel further improvement to lie in, this knee wall segmentation is pour and is formed.
The utility model discloses adhere to in the support structure that the mountain cliff supplied support tunnel's further improvement lie in, and the surface that the mountain was kept away from to this knee is the echelonment.
The utility model discloses adhere to in the support structure that the mountain cliff supplied support tunnel's further improvement lie in, the surface of each bench of this knee wall is an inclined plane.
The supporting structure of the utility model is further improved in that the slope ratio of the inclined plane of the supporting wall is 1: 0.5.
The utility model is further improved in that a slope structure opposite to the cliff is arranged on the ground near the bottom of the support wall;
the surface of the slope structure is cut to form a step surface;
the bottom part of the support wall is poured and formed on the step surface.
The utility model discloses adhere to in the support structure's that the mountain cliff supplied to support the tunnel further improvement lie in, this knee wall is reinforced concrete structure, and the reinforcing bar in this knee wall is through squeezing into the stock in the cliff and with cliff fastening connection.
The utility model discloses adhere to in the support structure that the mountain cliff supplied support tunnel's further improvement lie in, this knee wall is formed by C25 concrete placement.
The utility model discloses adhere to in mountain cliff and supply the support structure's that supports the tunnel further improvement lie in, the top elevation of this biasing wall is higher than the top elevation in tunnel.
Drawings
Fig. 1 is a schematic view of the overall structure of the supporting structure attached to the cliff of the mountain for supporting the tunnel.
Fig. 2 is a schematic view of the overall structure of another embodiment of the present invention attached to a cliff of a mountain for supporting a tunnel, in which the tunnel and a bias wall are omitted.
Detailed Description
The invention will be further explained with reference to the drawings and the specific embodiments.
Referring to fig. 1, the utility model provides an adhere to bearing structure that supplies support tunnel of massif cliff, pour through the cliff along the massif and form the knee wall, and construct the tunnel on the platform face at knee wall top, make the tunnel expose the part of massif and form on the platform face, and then construct bias voltage wall on the platform face with effect top thrust and tunnel, and this top thrust offsets with the pressure that the massif acted on the tunnel, thereby guarantee this tunnel structure's stability, the bearing structure construction difficulty's in cliff department tunnel problem has been solved, can not increase the burden to the stratum, for the protection that the tunnel provided powerful support, avoid the tunnel to take place the phenomenon of collapsing, guarantee the construction quality in tunnel. The following description will be made with reference to the accompanying drawings, in which the present invention is attached to a cliff of a mountain for supporting a tunnel.
Referring to fig. 1, fig. 1 is a schematic view illustrating an overall structure of a supporting structure attached to a mountain cliff for supporting a tunnel according to the present invention. The supporting structure attached to the cliff of the mountain for supporting the tunnel of the present invention will be described with reference to fig. 1.
As shown in fig. 1, the present invention is attached to a supporting structure of a cliff of a mountain for supporting a tunnel, a portion of a tunnel 21 to be formed is located on the outside of the cliff of the mountain 22, and the supporting structure includes:
removing the surface of the cliff to form an attachment surface on the cliff;
a support wall 11 formed on the attachment surface is poured, the bottom of the support wall 11 is supported on the ground, and the top of the support wall 11 forms a platform surface for construction and supporting the tunnel 21; and a bias wall 12 built on the platform surface and attached to one side of the tunnel 21 away from the mountain 22, wherein the bias wall 12 is abutted against the corresponding side of the tunnel 21 to apply an ejecting force to the tunnel 21, thereby offsetting the pressure of the mountain 22 on the tunnel 21.
Preferably, the top elevation of the biasing wall 12 is higher than the top elevation of the tunnel 21 to prevent the tunnel 21 from being biased by the pressure of the mountain.
Preferably, the buttress 11 is cast from C25 concrete.
As a preferred embodiment of the present invention, the attachment surface is in a step shape.
Preferably, the support wall 11 is formed by casting in sections, which can be cast in four sections, and each section has a height of about 10 m.
Furthermore, the surface of the support wall 11 away from the mountain 21 is stepped, so that the structure of the support wall 11 is more stable.
Preferably, the surface of each step of the support wall 11 is an inclined plane, and the slope ratio of the inclined planes is 1:0.5, or 1:0.1, 1:0.2, 1:0.3 and 1:0.4 from top to bottom.
Further, as shown in fig. 2, a slope structure 23 opposite to the cliff is provided on the ground near the bottom of the support wall 11;
the surface of the slope structure 23 is cut to form a step surface;
the bottom portion of the support wall 11 is cast on the stepped surface so that the slope structure 23 supports the support wall 11 from a side opposite to the cliff, so that the structure of the support wall 11 is more stable.
Specifically, the slope structure 23 and the cliff are both provided with anchor rods protruding outwards;
the support wall 11 is a reinforced concrete structure, and the steel bars in the support wall 11 are fixedly connected with the anchor rods, so that the support wall 11 is tightly connected with the slope structure 23 and the cliff.
The specific implementation manner of the utility model is as follows:
constructing a foundation at the bottom of the cliff, removing dangerous stones in the foundation pit and performing waterproof work when excavating the foundation pit, excavating on one side of the cliff to form a plurality of stages of step-shaped attachment surfaces, and excavating on a slope structure 23 opposite to the cliff to form a plurality of stages of step-shaped step surfaces;
the method comprises the following steps of (1) drilling anchor rods in a foundation, a cliff and a slope structure 23, grouting the anchor rods, after grouting is completed, erecting a template at the edge position to enclose to form a closed space, erecting a reinforcing mesh in the closed space, fixedly connecting the reinforcing mesh with the anchor rods, pouring concrete into the closed space, and repeating the steps until a support wall 11 with a set height is formed, wherein the support wall 11 can reach about 41m, and the support wall 11 is formed between the slope structure 23 and the cliff;
the tunnel 21 and the bias wall 12 are constructed on the platform surface at the top of the support wall 11, the anchor rods are arranged on the platform surface, and the reinforcing steel bars of the tunnel 21 and the bias wall 12 are fixedly connected with the anchor rods, so that the bias wall 12 and the tunnel 21 are fixed on the platform surface, the reinforcing steel bars of the bias wall 12 are connected with the reinforcing steel bars of the tunnel 21 at the corresponding part, the bias wall 12 is fixed with the tunnel 21, and the bias wall 12 is pushed against the corresponding side part of the tunnel 21 to offset the pressure of the mountain 22 on the tunnel 21.
The present invention has been described in detail with reference to the embodiments shown in the drawings, and those skilled in the art can make various modifications to the present invention based on the above description. Therefore, certain details of the embodiments should not be construed as limitations of the invention, which are intended to be covered by the following claims.
Claims (10)
1. A support structure attached to a cliff of a mountain for supporting a tunnel, wherein a portion of the tunnel to be formed is located on the cliff of the mountain, the support structure comprising:
removing a surface of the cliff to form an attachment surface on the cliff;
pouring a support wall formed on the attachment surface, wherein the bottom of the support wall is supported on the ground, and the top of the support wall forms a platform surface for construction and supporting the tunnel; and
and the bias wall is built on the platform surface and attached to one side of the tunnel, which is far away from the mountain body.
2. The support structure of claim 1, wherein the attachment surface is stair-shaped.
3. The support structure attached to the cliff of the mountain for supporting a tunnel of claim 1, wherein the support wall is cast in sections.
4. The support structure attached to the cliff of the mountain for supporting the tunnel of claim 1, wherein the surface of the support wall distal from the mountain is stepped.
5. The support structure of claim 4, wherein the surface of each of the sections of the support wall is a sloped surface.
6. The support structure attached to the cliff of the mountain for supporting the tunnel of claim 5, wherein a slope ratio of the inclined plane of the support wall is 1: 0.5.
7. The support structure attached to the cliff of the mountain for supporting a tunnel of claim 1, wherein a slope structure is provided on the ground adjacent to a bottom of the support wall opposite to the cliff;
the surface of the slope structure is cut to form a step surface;
and the bottom part of the support wall is poured and formed on the step surface.
8. The support structure attached to a cliff of a mountain for supporting a tunnel of claim 1, wherein the support wall is a reinforced concrete structure, and reinforcing rods in the support wall are fixedly connected to the cliff by anchor rods driven into the cliff.
9. The support structure attached to the cliff of the mountain for supporting the tunnel of claim 1, wherein the support wall is cast of C25 concrete.
10. The support structure attached to the cliff of the mountain for supporting a tunnel of claim 1, wherein a top elevation of the bias wall is higher than a top elevation of the tunnel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922097224.XU CN211734897U (en) | 2019-11-29 | 2019-11-29 | Support structure attached to mountain cliff for supporting tunnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922097224.XU CN211734897U (en) | 2019-11-29 | 2019-11-29 | Support structure attached to mountain cliff for supporting tunnel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211734897U true CN211734897U (en) | 2020-10-23 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922097224.XU Active CN211734897U (en) | 2019-11-29 | 2019-11-29 | Support structure attached to mountain cliff for supporting tunnel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211734897U (en) |
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2019
- 2019-11-29 CN CN201922097224.XU patent/CN211734897U/en active Active
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