CN208153058U - It is a kind of for the discharge structure of tunnel inverted arch bottom underground water to be discharged - Google Patents
It is a kind of for the discharge structure of tunnel inverted arch bottom underground water to be discharged Download PDFInfo
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- CN208153058U CN208153058U CN201820545302.0U CN201820545302U CN208153058U CN 208153058 U CN208153058 U CN 208153058U CN 201820545302 U CN201820545302 U CN 201820545302U CN 208153058 U CN208153058 U CN 208153058U
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- inverted arch
- blind pipe
- underground water
- discharged
- permeable layer
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Abstract
The utility model relates to a kind of for the discharge structure of tunnel inverted arch bottom underground water to be discharged, and be close to below inverted arch structure, along tunnel longitudinally elongated setting, including the longitudinal blind pipe and lateral blind pipe in permeable layer and permeable layer；Longitudinal blind pipe and lateral blind pipe intersect laying in length and breadth, and point of intersection is connected by four-way attachment device.The utility model is provided with the discharge structure for tunnel inverted arch bottom underground water to be discharged, underground water below inverted arch structure can be smoothly discharged, influence of the underground water to country rock below tunnel inverted arch can be reduced, it can effectively ensure that underground water smoothly penetrates into permeable layer, draining blind pipe is discharged outside hole, can effectively prevent country rock below tunnel inverted arch structure and soak for a long time and generate disease.
Description
Technical field
The utility model belongs to traffic engineering guarded drainage technical field, and in particular to one kind is for being discharged tunnel inverted arch bottom
The discharge structure being lauched.
Background technique
Mountain tunnel waterproof and drainage design follows the principle of " anti-, row cuts, bridging conjunction, adaptation to local conditions, comprehensive treatment ", accomplishes
Waterproof is reliable, draining is unimpeded, and main blind pipe circumferential, longitudinal by laying collects lining cutting arch and abutment wall behind ponding and passes through side
Wall drain hole introduces draining lateral sulcus or Central drain.Such drainage system efficiently solves arch, side wall lining behind ponding
Emission problem, and for the underground water below inverted arch, it is difficult to effectively discharge causes the following country rock of inverted arch to be impregnated for a long time by underground water
And softening, when underground water hydraulic pressure is excessive, underground water will be penetrated into along positions such as construction joint, deformation joints into tunnel, when serious
It can cause a series of diseases such as inverted arch protuberance.Therefore, the row that tunnel inverted arch bottom underground water can be smoothly discharged of development of new
Water-bound is a urgent problem.
Summary of the invention
The purpose of the utility model is to provide a kind of for the discharge structure of tunnel inverted arch bottom underground water to be discharged, for being discharged
Tunnel inverted arch bottom underground water facilitates ensuring that inverted arch bottom underground water is smoothly discharged, and can effectively prevent country rock below tunnel inverted arch structure
It soaks for a long time and generates disease, it is ensured that tunnel operation security.
Technical solution used by the utility model is：
It is a kind of for the discharge structure of tunnel inverted arch bottom underground water to be discharged, it is characterised in that：
The discharge structure is close to below inverted arch structure, along tunnel longitudinally elongated setting, including permeable layer and permeable layer
Interior longitudinal blind pipe and lateral blind pipe；
Longitudinal blind pipe and lateral blind pipe intersect laying in length and breadth, and point of intersection is connected by four-way attachment device.
Permeable layer is formed by graded broken stone filling technology.
It is covered with geotextiles below permeable layer, is covered with geotextiles and splash guard above permeable layer.
The filling-up thickness of permeable layer is not less than longitudinal blind pipe, 1.2 ~ 2.0 times of lateral blind pipe caliber.
Longitudinal blind pipe and lateral blind pipe outer surface are enclosed with geotextiles.
The utility model has the following advantages that：
The utility model is provided with the discharge structure for tunnel inverted arch bottom underground water to be discharged, the main ground that inverted arch bottom is discharged
It is lauched, using the discharge structure, influence of the underground water to country rock below tunnel inverted arch can be reduced, can effectively ensure that underground water is smooth
It penetrates into permeable layer, drain outside blind pipe discharge hole, can effectively prevent country rock below tunnel inverted arch structure and soak for a long time and generate disease.
Detailed description of the invention
Fig. 1 is the cross-sectional view of the utility model；
Fig. 2 is the utility model permeable layer internal drainage blind pipe plane artwork；
Fig. 3 is the portion A detail drawing in Fig. 1；
Fig. 4 is the portion B detail drawing in Fig. 2.
In figure, 1-permeable layer, 2-longitudinal blind pipes, 3- transverse direction blind pipe, 4-four-way attachment devices, 5-geotextiles, 6-is anti-
Water plate.
Specific embodiment
The utility model is described in detail With reference to embodiment.
The utility model relates to a kind of for the discharge structure of tunnel inverted arch bottom underground water to be discharged, and be close under inverted arch structure
Side, along tunnel longitudinally elongated setting, including the longitudinal blind pipe 2 and lateral blind pipe 3 in permeable layer 1 and permeable layer 1.
Longitudinal blind pipe 2 and lateral blind pipe 3 intersect laying in length and breadth, and point of intersection is connected by four-way attachment device 4, constitute one
A unobstructed discharge pipe line.Longitudinal blind pipe 2 is set along tunnel longitudinally elongated setting, lateral blind pipe 3 according to hydrological geological conditions determination
Set spacing.Longitudinal blind pipe 2 and 3 outer surface of lateral blind pipe are enclosed with geotextiles 5.
Permeable layer 1 is formed by graded broken stone filling technology, and longitudinal blind pipe 2 and lateral blind pipe 3 are embedded in permeable layer 1.Permeable layer 1
Lower section is covered with geotextiles 5, and geotextiles 5 and splash guard 6 are covered with above permeable layer 1.The filling-up thickness of permeable layer 1 is blind not less than longitudinal
1.2 ~ 2.0 times of pipe 2,3 caliber of lateral blind pipe.
Geotextiles 5 are it is possible to prevente effectively from fine particle penetrates into permeable layer 1, longitudinal blind pipe 2 and lateral blind pipe 3 together in country rock
And reduce the drainage performance of discharge structure；Splash guard 6 can prevent in lining concrete casting process concrete penetrate into permeable layer 1,
Longitudinal blind pipe 2 and lateral blind pipe 3 and the drainage performance for reducing discharge structure.Inverted arch bottom underground water penetrates into infiltration under effect of water pressure
Water layer 1 enters longitudinal blind pipe 2 and lateral blind pipe 3 is discharged outside hole, it is ensured that country rock is no longer immersed in underground water.
Specific construction step is：
The first step：After tunnel inverted arch excavates, the wastes such as inverted arch bottom void slag, waste water are removed, are then opened along inverted arch bottom
Digging face is laid with geotextiles 5；
Second step：Longitudinal blind pipe 2 and lateral blind pipe 3 are connected with four-way attachment device 4, and wraps up geotextiles in its outer surface
5；
Third step：Longitudinal blind pipe 2, lateral blind pipe 3 are laid in 5 inner surface of geotextiles；
4th step：Permeable layer 1 is applied, graded broken stone is filled, and ensures its compacting degree；
5th step：Geotextiles 5, splash guard 6 are successively laid in 1 upper surface of permeable layer, and apply composite lining concrete.
The utility model is provided with the discharge structure for tunnel inverted arch bottom underground water to be discharged, and inverted arch knot can be smoothly discharged
Underground water below structure can reduce influence of the underground water to country rock below tunnel inverted arch, can effectively ensure that underground water smoothly penetrates into
Outside water layer, draining blind pipe discharge hole, it can effectively prevent country rock below tunnel inverted arch structure and soak for a long time and generate disease.
The content of the utility model is not limited to cited by embodiment, and those of ordinary skill in the art are practical new by reading this
Type specification and to any equivalent transformation that technical solutions of the utility model are taken, be the claim institute of the utility model
Cover.
Claims (5)
1. a kind of for the discharge structure of tunnel inverted arch bottom underground water to be discharged, it is characterised in that：
The discharge structure is close to below inverted arch structure, along tunnel longitudinally elongated setting, including permeable layer（1）And permeable layer
（1）Interior longitudinal blind pipe（2）With lateral blind pipe（3）；
Longitudinal blind pipe（2）With lateral blind pipe（3）Intersect in length and breadth and lay, point of intersection passes through four-way attachment device（4）Connection.
2. according to claim 1 a kind of for the discharge structure of tunnel inverted arch bottom underground water to be discharged, it is characterised in that：
Permeable layer（1）It is formed by graded broken stone filling technology.
3. according to claim 1 a kind of for the discharge structure of tunnel inverted arch bottom underground water to be discharged, it is characterised in that：
Permeable layer（1）Lower section is covered with geotextiles（5）, permeable layer（1）Top is covered with geotextiles（5）And splash guard（6）.
4. according to claim 1 a kind of for the discharge structure of tunnel inverted arch bottom underground water to be discharged, it is characterised in that：
Permeable layer（1）Filling-up thickness be not less than longitudinal blind pipe（2）, lateral blind pipe（3）1.2 ~ 2.0 times of caliber.
5. according to claim 1 a kind of for the discharge structure of tunnel inverted arch bottom underground water to be discharged, it is characterised in that：
Longitudinal blind pipe（2）With lateral blind pipe（3）Outer surface is enclosed with geotextiles（5）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820545302.0U CN208153058U (en) | 2018-04-17 | 2018-04-17 | It is a kind of for the discharge structure of tunnel inverted arch bottom underground water to be discharged |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820545302.0U CN208153058U (en) | 2018-04-17 | 2018-04-17 | It is a kind of for the discharge structure of tunnel inverted arch bottom underground water to be discharged |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208153058U true CN208153058U (en) | 2018-11-27 |
Family
ID=64379677
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820545302.0U Active CN208153058U (en) | 2018-04-17 | 2018-04-17 | It is a kind of for the discharge structure of tunnel inverted arch bottom underground water to be discharged |
Country Status (1)
| Country | Link |
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| CN (1) | CN208153058U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112963201A (en) * | 2021-02-07 | 2021-06-15 | 广东省交通规划设计研究院股份有限公司 | Mountain tunnel and underground water drainage mechanism |
-
2018
- 2018-04-17 CN CN201820545302.0U patent/CN208153058U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112963201A (en) * | 2021-02-07 | 2021-06-15 | 广东省交通规划设计研究院股份有限公司 | Mountain tunnel and underground water drainage mechanism |
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