CN202370539U - Front tunnel face excavated soil pre-reinforcing structure of tunnel - Google Patents
Front tunnel face excavated soil pre-reinforcing structure of tunnel Download PDFInfo
- Publication number
- CN202370539U CN202370539U CN201120425455XU CN201120425455U CN202370539U CN 202370539 U CN202370539 U CN 202370539U CN 201120425455X U CN201120425455X U CN 201120425455XU CN 201120425455 U CN201120425455 U CN 201120425455U CN 202370539 U CN202370539 U CN 202370539U
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- tunnel
- soil layer
- face
- tunnel face
- reinforcing structure
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- Expired - Fee Related
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Abstract
The utility model relates to a front tunnel face excavated soil pre-reinforcing structure of a tunnel. The pre-reinforcing structure comprises a front tunnel face soil layer, a plurality of water delivery hoses and a plurality of small grouting guide pipes; a plurality of water delivery hoses are uniformly distributed in the front tunnel face soil layer; and a plurality of small guide pipes are arranged on the outer surface of the front tunnel face soil layer and arranged at equal intervals. The front tunnel face excavated soil pre-reinforcing structure of the tunnel is provided with the water delivery hoses and the small grouting guide pipes, so that drainage outside the tunnel is facilitated, local water pressure is reduced and conditions are provided for grouting reinforcement; and by grouting reinforcement, the stability of the front tunnel face soil layer is further enhanced.
Description
[technical field]
The utility model relates to a kind of preparatory reinforcing technique of the excavation soil body of tunnel, is specifically related to a kind of preparatory ruggedized construction of the preceding face excavation soil body of tunnel, belongs to field of engineering building.
[background technology]
In constructing tunnel, the preceding face soil body self-stable ability in tunnel is related to engineering construction quality and safety.Face is at sandy strata, unstable when groundwater table is following before the tunnel of prior art, and the mode that adopts mixed earth of injection or heap to establish straw bag is usually sealed, and there is potential safety hazard, also influences programming simultaneously.Thereby more and more can not satisfy high-level engineering construction requirement.Simultaneously, the hydrophobic performance of area is relatively poor before the existing tunnel, and face caves in before very likely causing.
For solving the problems of the technologies described above, necessary a kind of preparatory ruggedized construction of the preceding face excavation soil body with stable tunnel is provided, to overcome said defective of the prior art.
[utility model content]
For addressing the above problem, the purpose of the utility model is to provide a kind of preceding face stable and tunnel that hydrophobic performance is good to excavate the preparatory ruggedized construction of the soil body.
For realizing above-mentioned purpose, the technical scheme that the utility model is taked is: a kind of preparatory ruggedized construction of the preceding face excavation soil body of tunnel, and it comprises preceding face soil layer, some delivery hoses and some slip casting ductules; Wherein, said some delivery hoses are distributed in the preceding face soil layer; On the external surface of face soil layer, it was equally spaced and arranges before said some ductules were arranged at.
The preparatory ruggedized construction of the preceding face excavation soil body in the tunnel of the utility model further is set to: further built a steel grating in the face soil layer before said.
The preparatory ruggedized construction of the preceding face excavation soil body in the tunnel of the utility model further is set to: utilize delivery hose to take out face periphery underground water earlier; Excavate the peripheral soil body with the Grouting Pipe grouting and reinforcing again; Face is under the temporary transient anhydrous state; Lose flowability, reach the stable purpose of excavation.
Compared with prior art, the utlity model has following beneficial effect: the preparatory ruggedized construction of the preceding face excavation soil body of the utility model is through being provided with delivery hose and ductule, thereby is convenient to face soil layer draining outward before the tunnel; Through the Grouting Pipe consolidation grouting, further strengthened the stabilizing power of this preceding face soil layer.
[description of drawings]
Fig. 1 is the preceding face delivery hose in the tunnel of the utility model, the profile that Grouting Pipe is arranged.
[specific embodiment]
See also shown in the Figure of description 1, the utility model is that a kind of preceding face excavation soil body of tunnel is reinforced in advance, and several parts such as its preceding face soil layer 1, some delivery hoses 2 and some ductules 3 are built formation.
Wherein, said some delivery hoses 2 are distributed in the preceding face soil layer 1; On the external surface of face soil layer 1, it was equally spaced and arranges before said some ductules 3 were arranged at.Through said delivery hose 2 and ductule 3 are set, thereby be convenient to the inside and outside draining in tunnel.
Further, before said, further build a steel grating 11 in the face soil layer 1, thereby strengthened the intensity of this half sole minor structure.
The above specific embodiment is merely the preferred embodiment of this creation, not in order to limiting this creation, any modification of being made within all spirit and principles in this creation, is equal to replacement, improvement etc., all should be included within the protection domain of this creation.
Claims (2)
1. the preparatory ruggedized construction of the preceding face excavation soil body in a tunnel is characterized in that: face soil layer, some delivery hoses and some slip casting ductules before comprising; Wherein, said some delivery hoses are distributed in the preceding face soil layer; On the external surface of face soil layer, it was equally spaced and arranges before said some ductules were arranged at.
2. the preparatory ruggedized construction of the preceding face excavation soil body in tunnel as claimed in claim 1 is characterized in that: further built a steel grating in the face soil layer before said.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120425455XU CN202370539U (en) | 2011-11-01 | 2011-11-01 | Front tunnel face excavated soil pre-reinforcing structure of tunnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120425455XU CN202370539U (en) | 2011-11-01 | 2011-11-01 | Front tunnel face excavated soil pre-reinforcing structure of tunnel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202370539U true CN202370539U (en) | 2012-08-08 |
Family
ID=46594245
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120425455XU Expired - Fee Related CN202370539U (en) | 2011-11-01 | 2011-11-01 | Front tunnel face excavated soil pre-reinforcing structure of tunnel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202370539U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106436727A (en) * | 2016-09-27 | 2017-02-22 | 中铁五局集团有限公司 | Extreme geological tunnel portal construction method |
| CN106640129A (en) * | 2016-10-27 | 2017-05-10 | 中煤第三建设（集团）有限责任公司 | Tunnel face surrounding rock construction method and face grouting guide pipe |
| CN106761917A (en) * | 2016-12-14 | 2017-05-31 | 北京城建集团有限责任公司 | A kind of sealing discharge structure and its construction method |
-
2011
- 2011-11-01 CN CN201120425455XU patent/CN202370539U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106436727A (en) * | 2016-09-27 | 2017-02-22 | 中铁五局集团有限公司 | Extreme geological tunnel portal construction method |
| CN106640129A (en) * | 2016-10-27 | 2017-05-10 | 中煤第三建设（集团）有限责任公司 | Tunnel face surrounding rock construction method and face grouting guide pipe |
| CN106761917A (en) * | 2016-12-14 | 2017-05-31 | 北京城建集团有限责任公司 | A kind of sealing discharge structure and its construction method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120808 Termination date: 20121101 |