CN211230480U - Multichannel tunnel structure - Google Patents
Multichannel tunnel structure Download PDFInfo
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- CN211230480U CN211230480U CN201921138337.3U CN201921138337U CN211230480U CN 211230480 U CN211230480 U CN 211230480U CN 201921138337 U CN201921138337 U CN 201921138337U CN 211230480 U CN211230480 U CN 211230480U
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Abstract
The utility model relates to the field of tunnel construction, and provides a multi-channel tunnel structure, which comprises a tunnel lining, a mid-partition wall and a cast-in-place pile; the tunnel lining is tightly attached and fixed in the rock surface and arranged on the bottom surface of the tunnel; the cast-in-place pile is arranged at the bottom of the tunnel lining, and the tunnel lining comprises a plurality of lining units separated by the intermediate wall; each of the liner units includes: and the primary support and the steel fiber concrete secondary lining are sequentially laminated in the rock surface. The utility model provides a multichannel tunnel structure through set up the tunnel inside lining in the rock face, utilizes the bored concrete pile to fix the tunnel inside lining, with the tunnel inside lining by mid-board divided a plurality of lining units that are stacked gradually by preliminary bracing and steel fiber concrete for this tunnel can provide many passageways, satisfies different technical demands, reduces construction cycle simultaneously, improves tensile, bending resistance, shock resistance and fatigue resistance ability in multichannel tunnel with showing.
Description
Technical Field
The utility model relates to a tunnel construction field, in particular to multichannel tunnel structure.
Background
In the field of railway tunnels, except that part of common railway tunnels are in a single-hole double-line structural form, most railway tunnels including high-speed railways are in a double-hole single-line tunnel structural form.
This is mainly due to the fact that the train experiences a higher piston wind when operating in the tunnel than when operating in the open air. If the train meets in the double-hole single-line tunnel, the generated crosswind can generate severe lateral vibration to the train. And the strong crosswind generated by the meeting of the trains running at high speed can even cause the derailment of the trains and the casualties. And the section of the single-hole double-line tunnel is often larger, and a larger shield is needed in construction. Compared with a shield with an oversized diameter for excavating a single-hole double-line tunnel, the method for excavating the double-hole single-line tunnel by adopting two slightly smaller shields is obviously more reliable. Therefore, the structural form of the double-hole single-line tunnel is preferably selected from the tunnel in the existing rail transit field in view of traffic safety, economy and construction convenience.
With the continuous development of high-speed rail technology, the demand of tunnels is continuously increased, but the existing tunnel structure, especially a multi-channel tunnel still has the problems of tensile strength, bending resistance, impact resistance and the like, and because a plurality of places need to be constructed simultaneously, the problems of slow construction period, easy mutual influence of tunnels and the like exist.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
In view of the above technical drawbacks and application requirements, the present application provides a multi-channel tunnel structure, which aims to reduce the construction period and significantly improve the tensile, bending, impact and fatigue resistance of the multi-channel tunnel.
(II) technical scheme
In order to solve the above problem, the utility model provides a multichannel tunnel structure, include: tunnel linings, intermediate walls and cast-in-place piles; the tunnel lining is tightly attached and fixed in the rock surface and arranged on the bottom surface of the tunnel; the cast-in-place pile is arranged at the bottom of the tunnel lining, and the tunnel lining comprises a plurality of lining units separated by the intermediate wall; each of the liner units includes: and the primary support and the steel fiber concrete secondary lining are sequentially laminated in the rock surface.
Further, the plurality of liner units includes: the first lining unit, the second lining unit, the third lining unit and the fourth lining unit are sequentially separated by the intermediate wall.
Further, still include: side pilot tunnel; the side pilot tunnels are arranged at two ends of the tunnel lining and are connected with the lining units at two ends of the tunnel lining.
Further, still include: a bottom stringer; the bottom longitudinal beam is arranged between the intermediate wall and the bottom surface of the tunnel, and the intermediate wall is fixed on the bottom surface of the tunnel.
Further, still include: a top stringer; the top longitudinal beam is arranged between the lining unit and the intermediate wall, and the top longitudinal beam, the intermediate wall and the bottom longitudinal beam are sequentially poured on the bottom surface of the tunnel from bottom to top.
Further, still include: a crown beam; the crown beam is disposed between the tunnel liner and the tunnel floor.
Further, still include: a crown beam; the crown beam is arranged between the tunnel lining and the bottom surface of the tunnel and used for fixing the tunnel lining.
Further, the liner unit further includes: an anchor rod; the anchor rod is arranged between the primary support and the rock face.
Further, the fiber volume ratio in the steel fiber concrete secondary lining is 1-2%.
Further, the liner unit further includes: waterproof board and drainage blind pipe; the waterproof plate and the drainage blind pipe are sequentially arranged between the primary support and the steel fiber concrete secondary lining.
(III) advantageous effects
The utility model provides a multichannel tunnel structure through set up the tunnel inside lining in the rock face, utilizes the bored concrete pile to fix the tunnel inside lining, with the tunnel inside lining by mid-board divided a plurality of lining units that are stacked gradually by preliminary bracing and steel fiber concrete for this tunnel can provide many passageways, satisfies different technical demands, reduces construction cycle simultaneously, improves tensile, bending resistance, shock resistance and fatigue resistance ability in multichannel tunnel with showing.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a multi-channel tunnel structure provided by an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a multi-channel tunnel structure according to another embodiment of the present invention;
wherein, 1, tunnel lining; 2. an intermediate wall; 3. filling piles; 4. side pilot tunnel; 5. a bottom stringer; 6. a top stringer; 7. a crown beam; 11. primary support; 12. a steel fiber concrete secondary lining; 13. an anchor rod.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
An embodiment of the utility model provides a multichannel tunnel structure, as shown in fig. 1, this multichannel tunnel structure includes: tunnel lining 1, intermediate wall 2 and cast-in-place pile 3. Tunnel inside lining 1 is the arc and hugs closely and fixes in the rock face, and tunnel inside lining 1 sets up on the tunnel bottom surface. The cast-in-place pile 3 is arranged at the bottom of the tunnel lining 1 for fixing the whole tunnel lining 1. The tunnel liner 1 includes a plurality of liner units partitioned by the intermediate wall 2 so that the tunnel can provide a plurality of passages to meet various technical demands. Each lining unit includes: the primary support 11 and the steel fiber concrete secondary lining 12 are sequentially laminated in the rock surface. The primary supports 11 are directly connected to the rock face.
The messenger reduces construction cycle for guaranteeing multichannel tunnel structure's steadiness, and this embodiment adopts steel fibre concrete to replace traditional concrete. The fiber volume ratio in the steel fiber concrete secondary lining 12 is 1% -2%, the steel fiber concrete can be directly used for pouring, the process of binding steel bars in the construction process is eliminated, the problem that mutual influence is easy to occur in the tunnel construction process is avoided to a certain extent, and the tensile, bending, impact and fatigue resistance of the multi-channel tunnel is improved.
It should be noted that the number of the lining units can be adjusted according to actual conditions. As shown in fig. 2, the plurality of lining units includes a first lining unit, a second lining unit, a third lining unit and a fourth lining unit sequentially partitioned by the intermediate wall 2. The first lining unit, the second lining unit, the third lining unit and the fourth lining unit are sequentially connected and fixed in a rock face.
The embodiment of the utility model provides a multichannel tunnel structure through set up the tunnel inside lining in the rock face, utilizes the bored concrete pile to fix the tunnel inside lining, with the tunnel inside lining by mid-board divided a plurality of lining units that are stacked gradually by preliminary bracing and steel fiber concrete for this tunnel can provide many passageways, satisfies different technical demands, reduces construction cycle simultaneously, improves tensile, bending resistance, shock resistance and fatigue resistance ability in multichannel tunnel remarkably.
In an embodiment according to the present invention, as shown in fig. 1 and 2, the multichannel tunnel structure further includes: and a side pilot hole 4. The side guide holes 4 are arranged at two ends of the tunnel lining 1, and the side guide holes 4 are connected with lining units at two ends of the tunnel lining 1.
In this embodiment, the multichannel tunnel structure may further include a bottom longitudinal beam 5, a top longitudinal beam 6, and a top longitudinal beam 7. A bottom longitudinal beam 5 is provided between the intermediate wall 2 and the tunnel floor, and the bottom longitudinal beam 5 is used to fix the intermediate wall 2 to the tunnel floor. The top longitudinal beam 6 is arranged between the lining unit and the middle partition wall 2, and the top longitudinal beam 6, the middle partition wall 2 and the bottom longitudinal beam 5 are sequentially poured on the bottom surface of the tunnel from bottom to top. The crown beam 7 is arranged between the tunnel lining 1 and the bottom surface of the tunnel, and the crown beam 7 is matched with the top longitudinal beam 6, the bottom longitudinal beam 5 and the intermediate wall 2 and is used for bearing the whole tunnel lining 1.
To secure the primary support 11, the lining unit further includes: an anchor rod 13. The anchor 13 is disposed between the preliminary support 11 and the rock face, and the anchor 13 fixes the preliminary support 11 to the rock face. The anchor rods 13 are arranged in a radial direction, are perpendicular to the primary support 11 and are about 1-3 m long. A plurality of anchor rods 13 may be provided, and the plurality of anchor rods 13 may be connected to the preliminary bracing 11.
Wherein, the inside lining unit still includes: waterproof board and drainage blind pipe. The waterproof plate and the drainage blind pipe are sequentially arranged between the primary support 11 and the steel fiber concrete secondary lining 12, the drainage blind pipe is mainly made of synthetic fibers, plastics, synthetic rubber and the like through different process methods and is used for collecting accumulated water in the tunnel, and the drainage blind pipe is matched with the waterproof plate to prevent water seepage of the tunnel.
The embodiment of the utility model provides a multichannel tunnel structure through set up the tunnel inside lining in the rock face, utilizes the bored concrete pile to fix the tunnel inside lining, with the tunnel inside lining by mid-board divided a plurality of lining units that are stacked gradually by preliminary bracing and steel fiber concrete for this tunnel can provide many passageways, satisfies different technical demands, reduces construction cycle simultaneously, improves tensile, bending resistance, shock resistance and fatigue resistance ability in multichannel tunnel remarkably. In addition, be different from above-mentioned embodiment, the multichannel tunnel structure that this embodiment provided utilizes the stock to connect the rock mass through a plurality of roof beam body structure bearing tunnel inside lining, has increased multichannel tunnel structure's steadiness by a wide margin, and the waterproof board and the drainage blind pipe that add moreover can effectively prevent the tunnel infiltration.
The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (9)
1. A multi-channel tunnel structure, comprising:
tunnel linings, intermediate walls and cast-in-place piles;
the tunnel lining is tightly attached and fixed in the rock surface and arranged on the bottom surface of the tunnel; the cast-in-place pile is arranged at the bottom of the tunnel lining, and the tunnel lining comprises a plurality of lining units separated by the intermediate wall; each of the liner units includes: and the primary support and the steel fiber concrete secondary lining are sequentially laminated in the rock surface.
2. The multichannel tunnel structure of claim 1, wherein the plurality of liner units includes: the first lining unit, the second lining unit, the third lining unit and the fourth lining unit are sequentially separated by the intermediate wall.
3. The multi-channel tunnel structure of claim 1, further comprising: side pilot tunnel; the side pilot tunnels are arranged at two ends of the tunnel lining and are connected with the lining units at two ends of the tunnel lining.
4. The multi-channel tunnel structure of claim 1, further comprising: a bottom stringer; the bottom longitudinal beam is arranged between the intermediate wall and the bottom surface of the tunnel, and the intermediate wall is fixed on the bottom surface of the tunnel.
5. The multi-channel tunnel structure of claim 4, further comprising: a top stringer; the top longitudinal beam is arranged between the lining unit and the intermediate wall, and the top longitudinal beam, the intermediate wall and the bottom longitudinal beam are sequentially poured on the bottom surface of the tunnel from bottom to top.
6. The multi-channel tunnel structure of claim 5, further comprising: a crown beam; the crown beam is disposed between the tunnel liner and the tunnel floor.
7. The multi-channel tunnel structure of claim 1, further comprising: a crown beam; the crown beam is arranged between the tunnel lining and the bottom surface of the tunnel and used for fixing the tunnel lining.
8. The multichannel tunnel structure of claim 1, wherein the liner unit further comprises: an anchor rod; the anchor rod is arranged between the primary support and the rock face.
9. The multichannel tunnel structure of claim 1, wherein the liner unit further comprises: waterproof board and drainage blind pipe; the waterproof plate and the drainage blind pipe are sequentially arranged between the primary support and the steel fiber concrete secondary lining.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921138337.3U CN211230480U (en) | 2019-07-18 | 2019-07-18 | Multichannel tunnel structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921138337.3U CN211230480U (en) | 2019-07-18 | 2019-07-18 | Multichannel tunnel structure |
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| Publication Number | Publication Date |
|---|---|
| CN211230480U true CN211230480U (en) | 2020-08-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921138337.3U Active CN211230480U (en) | 2019-07-18 | 2019-07-18 | Multichannel tunnel structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113931169A (en) * | 2021-11-03 | 2022-01-14 | 中建五局土木工程有限公司 | Bias multi-arch tunnel portal soft foundation zone combined structure and construction method |
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2019
- 2019-07-18 CN CN201921138337.3U patent/CN211230480U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113931169A (en) * | 2021-11-03 | 2022-01-14 | 中建五局土木工程有限公司 | Bias multi-arch tunnel portal soft foundation zone combined structure and construction method |
| CN113931169B (en) * | 2021-11-03 | 2023-03-10 | 中建五局土木工程有限公司 | Bias multi-arch tunnel portal soft foundation zone combined structure and construction method |
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