CN207740043U - Dispose the longitudinal drainage system of tunnel floor pore gas flow - Google Patents
Dispose the longitudinal drainage system of tunnel floor pore gas flow Download PDFInfo
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- CN207740043U CN207740043U CN201820052541.2U CN201820052541U CN207740043U CN 207740043 U CN207740043 U CN 207740043U CN 201820052541 U CN201820052541 U CN 201820052541U CN 207740043 U CN207740043 U CN 207740043U
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- 239000011148 porous material Substances 0.000 title claims abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 106
- 230000035699 permeability Effects 0.000 claims abstract description 3
- 239000003673 groundwater Substances 0.000 abstract description 12
- 230000006378 damage Effects 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 abstract description 4
- 230000008595 infiltration Effects 0.000 description 6
- 238000001764 infiltration Methods 0.000 description 6
- 241001074085 Scophthalmus aquosus Species 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000010276 construction Methods 0.000 description 4
- 230000035515 penetration Effects 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 3
- 238000005086 pumping Methods 0.000 description 3
- 238000011144 upstream manufacturing Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 229920011532 unplasticized polyvinyl chloride Polymers 0.000 description 1
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Abstract
The utility model is related to tunnel drainage technologies, it is desirable to provide a kind of longitudinal drainage system of disposition tunnel floor pore gas flow.It is bored in the gutter for the treatment of technology for tunnel seepage water area and makes vertical gully-hole, bored in the downstream along tunnel longitudinal slope direction and make vertical water storage hole, ensure that the two bottom has identical elevation；Water-permeable pipe of the gully-hole top arrangement with water permeability, fluid-tight collector pipe is arranged in bottom；Arrange that fluid-tight standpipe, the both ends of siphon drainage pipe are respectively protruding into the bottom to collector pipe and standpipe in water storage hole；Overflow port is arranged in standpipe upper portion side wall, and is connected to tunnel side ditch by pipeline.The utility model is acted on by siphon drainage and utilizes tunnel longitudinal direction height difference, it can be achieved that leakage local ground watering automatically, in real time, is constantly discharged, and control groundwater level is lifted, and prevents base plate leakage problem；Flexible with design arrangement, working drawing review is quick and convenient, to tunnel floor and road surface without destruction, does not influence the advantages of tunnel is normally open to traffic.
Description
Technical field
The utility model belongs to tunnel drainage technology, is related to a kind of longitudinal drainage system of disposition tunnel floor pore gas flow
System more particularly to a kind of longitudinal siphon drainge system of the raised tunnel floor infiltration disposition of controlling groundwater level.
Background technology
It is influenced by complicated geological environment condition, often will appear water leakage defect in tunnel construction and operation, especially
Tunnel floor is easily led to bottom slab crack or waterproof damage layer by the repeated action of traffic load.When tunnel groundwater position is higher
When, frequently result in local bottom plate infiltration.Tunnel floor infiltration can make surface gathered water, freeze, the skidding for causing vehicle to travel, seriously
Influence the safety of driving；Infiltration can destroy tunnel floor lining cutting and pavement structure, shorten the service life in tunnel, increase tunnel
Care and maintenance cost.
Currently, common water seepage of tunnel method of disposal has：Grouting for water blocking and setting pumping equipment ejectment.Grouting for water blocking is to adopt
It uses quick-set to be injected as slurry in the crack of country rock, achievees the purpose that water blockoff.But grouting for water blocking can cause underground water to shift
It is oozed out to neighbouring weakness, and grouting with plunger is complicated, construction quality is difficult to control, and cost is high, the period is long, influences the normal of tunnel
It uses.It is mainly that underground water is discharged into the gutter in tunnel by setting draining blind pipe and aqueduct that pumping equipment ejectment, which is arranged,.Tunnel
The pumping equipment of road bottom plate is located at road surface and needs to excavate on existing road surface hereinafter, constructing, and needs deeper gutter, applies
Work influences greatly traffic operation, of high cost.In addition, drainpipe and osculum water-collecting capacity are poor, it is easy silting, and repair
Difficulty, long-term drainage effect are poor.
Utility model content
The technical problems to be solved in the utility model is to overcome deficiency in the prior art, provides a kind of disposition tunnel bottom
The longitudinal drainage system of plate pore gas flow.
To solve technical problem, the solution of the utility model is：
A kind of longitudinal drainage system of disposition tunnel floor pore gas flow is provided, which is suitable for having longitudinal slope
The tunnel of degree bores in the gutter that tunnel floor leaks water area and makes vertical gully-hole, along the separate leakage in tunnel longitudinal slope direction
The downstream of water area, which is bored, makes vertical water storage hole, ensures that the bottom in gully-hole and water storage hole has identical elevation；Gully-hole top cloth
The water-permeable pipe with water permeability is set, fluid-tight collector pipe is arranged in bottom；Fluid-tight standpipe is arranged in water storage hole, is catchmented
Hole is connected with water storage hole by siphon drainage pipe, and the both ends of siphon drainage pipe are respectively protruding into the bottom to collector pipe and standpipe；
Overflow port is arranged in standpipe upper portion side wall, and is connected to tunnel side ditch by pipeline.
In the utility model, the standpipe overflow port elevation is consistent with water level control line elevation.
In the utility model, a diameter of 70~120mm of the gully-hole, depth is 3~6m, the spacing of adjacent gully-hole
For 2~5m；A diameter of 70~120mm in water storage hole, depth are 0.8~1.2m.
In the utility model, more siphon drainage pipes are arranged in the water storage hole, are respectively connected to different gully-holes.
The method that the longitudinal drainage of disposition tunnel floor pore gas flow is realized using system described in the utility model, principle
It is the height difference formed using tunnel head fall, the underground in tunnel floor infiltration region is reduced and controlled using siphon drainage principle
Water level；Specifically include following step：
(1) appearance is bored in the tunnel side ditch that tunnel floor leaks water area at multiple vertical gully-holes, and in each collection
The top water-permeable pipe with water penetration and fluid-tight underdrain pipe are respectively arranged in water hole；
(2) vertical water storage hole is being made along downstream gutter brill of the tunnel longitudinal slope direction far from leakage water area, is making gully-hole
Bottom hole absolute altitude with water storage hole is in same elevation；Arrange that fluid-tight standpipe, the nozzle of standpipe are higher by tunnel in water storage hole
Overflow port is arranged in the side wall of road gutter bottom of trench at least 30cm, standpipe, and is connected to tunnel side ditch by pipeline；
When positioning water storage hole, it need to determine the distance between gully-hole and water storage hole according to the tunnel longitudinal slope gradient, pass through
The adjustment of the two height difference is required with meeting the water level range of decrease, specifically：Water level control line and the overflow port of downstream standpipe are high
Journey is consistent, and need to ensure that this water level control line is located at upstream gully-hole middle and lower part position, corresponding with collector pipe mouth of pipe elevation.
(3) gully-hole and water storage hole are connected with siphon drainage pipe, the both ends of siphon drainage pipe be respectively protruding into collector pipe with
The bottom of standpipe, and make to be full of water in siphon pipe；
(4) due to the presence of tunnel longitudinal slope, make between gully-hole and water storage hole that there are height differences, leak the underground water of water area
Water-head can be formed with standpipe after water-permeable pipe is accumulated in gully-hole, siphon drainage pipe automatically will collection under atmospheric pressure effect
It in water pump drainage to standpipe in water hole, and is drained into tunnel side ditch by the overflow port of standpipe, to reduce and control tunnel
The level of ground water of road base plate leakage water area maintains the overflow nozzle elevation location of downstream standpipe.
Principles illustrated：
In tunnel floor rises, gutter brill makes vertical gully-hole, and the underground water near seepage point under bottom plate is made to converge naturally
Into gully-hole, the general 2-5m of pitch of holes of catchmenting, the general 3-6m of depth；It is arranged at a certain distance from along tunnel longitudinal slope direction downstream
Siphon balances water storage hole, and the underground water in gully-hole is discharged in real time in water storage hole using siphon drainage pipe, then drains into tunnel
Gutter and flow out tunnel；Due to the presence of tunnel longitudinal slope, between gully-hole and water storage hole there are height difference and the longitudinal slope gradient it is bigger, collection
Water hole is remoter with water storage hole distance, and height difference is bigger, and the level of ground water in gully-hole can be down to overflow port elevation location by siphon, from
And the level of ground water in tunnel floor leakage region is reduced and controls, prevent tunnel floor water leakage defect from occurring；When it is implemented,
Can according to the practical longitudinal slope ratio of slope in tunnel, by adjust gully-hole between water storage hole at a distance from obtain required height difference, meet drop
The requirement of low difference groundwater level amplitude.
Compared with prior art, the utility model has the beneficial effects that：
1, the utility model is acted on by siphon drainage and utilizes tunnel longitudinal direction height difference, it can be achieved that automatically, in real time, constantly
Tunnel floor is discharged and leaks local ground watering, the following groundwater level lifting of control bottom plate prevents base plate leakage problem；
2, the utility model has design arrangement flexible, and construction is quick and convenient, to tunnel floor and road surface without destruction, not shadow
Ring the advantages of tunnel is normally open to traffic；
3, the water discharge method of the utility model not will produce silting, and easy to maintenance.
Description of the drawings
Fig. 1 is the general illustration of the utility model；
Fig. 2 is the implementation schematic diagram of the utility model longitudinal direction siphon drainage method；
Fig. 3 is the partial enlarged view of the gully-hole in Fig. 2；
Fig. 4 is the partial enlarged view in the siphon balance water storage hole in Fig. 2；
In figure：Gully-hole 1, water storage hole 2, siphon drainage pipe 3, collector pipe 4, standpipe 5, overflow port 6, tunnel side ditch 7, tunnel
Road country rock 8, road surface 9, tunnel-liner 10, water level control line 11, phreatic line 12, water-permeable pipe 13, tunnel 14, leakage water area
15。
Specific implementation mode
Below in conjunction with the accompanying drawings, specific embodiment of the present utility model is described in detail.
As shown in Figure 1, the road surface in tunnel 14 on longitudinal profile be the longitudinal slope with certain ratio of slope, both ends with outside tunnel
Highway is connected.The longitudinal drainage system for disposing tunnel floor pore gas flow is included in the tunnel of tunnel floor leakage water area 15
It is bored in gutter 7 and makes vertical gully-hole 1, vertical water storage hole 2 is made being bored along downstream of the tunnel longitudinal slope direction far from leakage water area 15；
Since tunnel longitudinal slope exists, 1 top of gully-hole is higher than 2 top of water storage hole and the two bottom is with identical elevation；Upstream gully-hole 1
In arrange top water-permeable pipe 13 and fluid-tight underdrain pipe 4 with water penetration, arrange water storage in downstream water storage hole 2
Pipe 5, collector pipe 4 and 5 length having the same of standpipe and identical Bottom Altitude；Gully-hole 1 and water storage hole 2 are arranged by siphon
Water pipe 3 is connected, and the both ends of siphon drainage pipe 3 are respectively protruding into the bottom of collector pipe 4 and standpipe 5；5 nozzle of standpipe is higher by tunnel
7 bottom of trench 30cm of road gutter, overflow port 6 is arranged in upper part side wall, and is connected to tunnel side ditch 7 by pipeline.Overflow port 6 is water level
Control line 11, which is located at the middle and lower part of gully-hole, consistent with 4 mouth of pipe elevation of collector pipe.
It is optional：A diameter of 70~120mm of gully-hole 1, depth are 3~6m, and the spacing of adjacent gully-hole 1 is 2~5m, is adopted
It is made with drilling machine brill；A diameter of 70~120mm in water storage hole 2, depth are 0.8~1.2m, are made using drilling machine brill.Collector pipe 4 and storage
The making of UPVC materials can be used in 5 bottom lock of water pipe, the PU pipes or PA pipes that siphon drainage pipe is 4~6mm of caliber.In water storage hole 2
It can arrange more siphon drainage pipes 3, be respectively connected to different gully-holes 1 (as shown in Figure 4).
The method that the longitudinal drainage of disposition tunnel floor pore gas flow is realized using system described in the utility model is to utilize
The height difference that tunnel head fall is formed reduces using siphon drainage principle and controls the level of ground water in tunnel floor infiltration region；
Specifically include following step：
(1) it to the tunnel 1 with certain head fall, bores and makes in the tunnel side ditch 7 that tunnel floor leaks water area 15
Multiple vertical gully-holes 1 are formed, and are simutaneously arranged water-permeable pipe 13 and fluid-tight collection with water penetration in each gully-hole 1
Water pipe 4；
(2) vertical water storage hole 2 is being made along downstream brill of the tunnel longitudinal slope direction far from leakage water area 15, upstream is made to catchment
The bottom hole absolute altitude in hole 1 and downstream water storage hole 2 is in same elevation；Arrange that fluid-tight standpipe 5, standpipe 5 are managed in water storage hole 2
Mouth is higher than 7 bottom of trench 30cm of tunnel side ditch, and overflow port 6 is arranged in upper part side wall, and is connected to tunnel side ditch 7 by pipeline；
When positioning water storage hole 2, the distance between gully-hole 1 and water storage hole 2 need to be determined according to the tunnel longitudinal slope gradient, lead to
Cross the adjustment to the two height difference to be required to meet the level of ground water range of decrease, specifically：The overflow of water level control line 11 and standpipe 5
6 elevations of mouth are consistent, and the water level control line 11 is suitable with 4 mouth of pipe elevation of collector pipe in gully-hole 1；
(3) gully-hole 1 and water storage hole 2 are connected with siphon drainage pipe 3, the both ends of siphon drainage pipe 3 are respectively protruding into catchmenting
The bottom of pipe 4 and standpipe 5, and make to be full of water in siphon drainage pipe 3；
(4) due to the presence of 14 head fall of tunnel, make between gully-hole 1 and water storage hole 2 there are height difference, to leak water area
15 underground water can form water-head, siphon drainage pipe after the water-permeable pipe 13 of water penetration is accumulated in gully-hole 1 with standpipe 5
3 by siphonage automatically by the water pump drainage to standpipe 5 in gully-hole 1, and tunnel is drained by the overflow port of standpipe 56
In road gutter 7.
By the system of application the utility model, as long as level of ground water rises, tunnel floor underground water below will be to side
Ditch gully-hole 1 collects, once water level increases in gully-hole 1 and downstream water storage hole 2 forms water-head, siphon drainage pipe 3 will be certainly
It is dynamic by the real-time pump drainage of underground water to downstream water storage hole 2 in gully-hole 1, and tunnel side is discharged by the overflow port of standpipe 56
Ditch 7 and flow out tunnel.Acted on by siphon drainage, using tunnel longitudinal direction height difference, it can be achieved that it is automatic, in real time, tunnel is constantly discharged
15 underground water of road base plate leakage water area, the following groundwater level lifting of control bottom plate, prevents base plate leakage problem.This practicality is new
Type have design arrangement it is flexible, construction it is quick and convenient, to tunnel floor and road surface without destruction, do not influence tunnel be normally open to traffic it is excellent
Point.
Claims (4)
1. a kind of longitudinal drainage system of disposition tunnel floor pore gas flow, the drainage system are suitable for the tunnel with head fall
Road, which is characterized in that bored in the gutter that tunnel floor leaks water area and make vertical gully-hole, separate along tunnel longitudinal slope direction
The downstream of leakage water area, which is bored, makes vertical water storage hole, ensures that the bottom in gully-hole and water storage hole has identical elevation；On gully-hole
Water-permeable pipe of portion's arrangement with water permeability, fluid-tight collector pipe is arranged in bottom；Fluid-tight standpipe is arranged in water storage hole,
Gully-hole is connected with water storage hole by siphon drainage pipe, and the both ends of siphon drainage pipe are respectively protruding into the bottom to collector pipe and standpipe
Portion；Overflow port is arranged in standpipe upper portion side wall, and is connected to tunnel side ditch by pipeline.
2. system according to claim 1, which is characterized in that the standpipe overflow port elevation and water level control line elevation
It is consistent.
3. system according to claim 1, which is characterized in that a diameter of 70~120mm of the gully-hole, depth 3
The spacing of~6m, adjacent gully-hole are 2~5m；A diameter of 70~120mm in water storage hole, depth are 0.8~1.2m.
4. system according to claim 1, which is characterized in that more siphon drainage pipes are arranged in the water storage hole, point
It is not connected to different gully-holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820052541.2U CN207740043U (en) | 2018-01-12 | 2018-01-12 | Dispose the longitudinal drainage system of tunnel floor pore gas flow |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820052541.2U CN207740043U (en) | 2018-01-12 | 2018-01-12 | Dispose the longitudinal drainage system of tunnel floor pore gas flow |
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| CN207740043U true CN207740043U (en) | 2018-08-17 |
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| CN201820052541.2U Active CN207740043U (en) | 2018-01-12 | 2018-01-12 | Dispose the longitudinal drainage system of tunnel floor pore gas flow |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108561180A (en) * | 2018-01-12 | 2018-09-21 | 浙江大学 | A kind of longitudinal drainage system and method for disposition tunnel floor pore gas flow |
| CN112832862A (en) * | 2021-03-16 | 2021-05-25 | 中铁城建集团第三工程有限公司 | Construction method of drainage system for preventing water from flowing backwards after tunnel structure bottom plate leaks |
-
2018
- 2018-01-12 CN CN201820052541.2U patent/CN207740043U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108561180A (en) * | 2018-01-12 | 2018-09-21 | 浙江大学 | A kind of longitudinal drainage system and method for disposition tunnel floor pore gas flow |
| CN112832862A (en) * | 2021-03-16 | 2021-05-25 | 中铁城建集团第三工程有限公司 | Construction method of drainage system for preventing water from flowing backwards after tunnel structure bottom plate leaks |
| CN112832862B (en) * | 2021-03-16 | 2022-04-19 | 中铁城建集团第三工程有限公司 | Construction method of drainage system for preventing water from flowing backwards after tunnel structure bottom plate leaks |
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