CN106368732A - Pressure releasing and drainage system for double-track tunnel base of high speed railway - Google Patents
Pressure releasing and drainage system for double-track tunnel base of high speed railway Download PDFInfo
- Publication number
- CN106368732A CN106368732A CN201611090371.9A CN201611090371A CN106368732A CN 106368732 A CN106368732 A CN 106368732A CN 201611090371 A CN201611090371 A CN 201611090371A CN 106368732 A CN106368732 A CN 106368732A
- Authority
- CN
- China
- Prior art keywords
- tunnel
- drainage system
- speed railway
- water
- draining
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 35
- 239000004746 geotextile Substances 0.000 claims abstract description 8
- 230000008595 infiltration Effects 0.000 claims abstract description 8
- 238000001764 infiltration Methods 0.000 claims abstract description 8
- 239000000758 substrate Substances 0.000 claims description 23
- 230000006837 decompression Effects 0.000 claims description 15
- 238000000034 method Methods 0.000 description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 201000010099 disease Diseases 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000003673 groundwater Substances 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007717 exclusion Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F16/00—Drainage
- E21F16/02—Drainage of tunnels
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The invention discloses a pressure releasing and drainage system for a double-track tunnel base of a high speed railway. A soakage pit is formed in a tunnel inverted arch base in advance; a central drainage ditch is arranged below the road surface of a tunnel central line; a draining guide pipe downwards extending into the soakage pit is arranged on the side wall of the central drainage ditch; a plurality of infiltrating holes are formed in the pipe wall of the lower end of the draining guide pipe; permeable geotextile wraps the lower end of the draining guide pipe; the infiltration well is filled with gravels. According to the pressure releasing and drainage system disclosed by the invention, water can be collected into the soakage pit, and further the draining of underground water is facilitated; the geotextile wraps the end, extending into the soakage pit, of the draining pipe, thereby preventing the blockage of an infiltration pipe, guaranteeing smooth draining of base water, reducing the pressure of the base water, and eventually reducing potential hidden danger of a project.
Description
Technical field
The present invention relates to tunnels and underground engineering technical field, specially a kind of high-speed railway double track tunnel substrate decompression row
Water system.
Background technology
The guarded drainage technology in tunnel, is exactly the important step during Tunnel Design, Tunnel Design is to subsoil water always
Process and will have influence on the stress of structure, influence degree of ecological environment etc..For the Railway Tunnel built in region of FuShui,
Because substrate is acted on by groundwater pressure, lead to inverted arch under effect of water pressure, produce inverted arch lifting, the disease of craze and transfiguration
Evil, so that high speed railway track deforms, causes guideway irregularity, leaves serious potential safety hazard to later stage operation, makes
Become life and property loss.
For prevent due to groundwater pressure excessive, and lead to tunnel inverted arch to bear excessive active force, cause inverted arch to swell
Deformation, destroys the ride comfort of high-speed railway circuit, has some scholars that it is studied it is proposed that some working measures, but just
For the drainage system of high-speed railway substrate decompression at present, there is not the reliable method of system.If Wang Yuan is clearly in " rich water tunnel subregion
Decompression guarded drainage technical research " propose in a literary composition, in centre drain bottom, pvc pipe and substrate UNICOM are installed in advance, to
When water pressure increases, subsoil water can be discharged into centre drain along conduit, and this theoretical method is feasible, but answers actual
With during, pvc pipe is susceptible to plugging phenomenon, leads to subsoil water cannot normally circulate it is impossible to produce a desired effect；Due in
The water in centre gutter, easily along pvc pipe flow to ground, makes substrate be chronically at rich water state, easily makes foundation softening, cause country rock strong
Degree reduces, and induces disease；And, due to being not provided with charge for remittance area, subsoil water is difficult to self-conductance bank of tubes to centre drain.Germany
Some mountain tunnels due to buried depth less, using full plugging structure, but adopt in inverted arch gutter arranged below when head is higher
Method reducing waterpower, outside substrate subsoil water effectively can be discharged tunnel by the method, reduce water pressure at the bottom of the foundation, but should
Method needs to apply gutter inside and outside tunnel-liner, and quantities is larger.
Content of the invention
For the problems referred to above it is an object of the invention to proposing a kind of high-speed railway double track tunnel substrate decompression drainage system,
This system can successfully collect subsoil water, also smoothly can arrange substrate subsoil water to centre drain simultaneously, and then
Reduce water pressure at the bottom of the foundation, prevent inverted arch protuberance deformation, reduce the hidden dangers in project during the operation of high-speed railway later stage.Technical scheme
As follows:
A kind of high-speed railway double track tunnel substrate decompression drainage system, tunnel inverted arch substrate is preset with filter well, tunnel center line
It is provided with centre drain, centre drain side wall is provided with the drainage duct extending down into filter well below road surface.
Further, described drainage duct lower end tube wall is provided with multiple water seepage holes.
Further, described drainage duct lower end is enclosed with permeable geotextiles.
Further, it is filled with rubble in described filter well.
The invention has the beneficial effects as follows: the present invention relatively has substrate decompression drainage system innovation and is to be provided with substrate
Filter well, water is come together among filter well, and then is conducive to the discharge of subsoil water；And the rich water situation according to stratum, can
With the rational quantity arranging filter well, make design more reasonable, effective, and then reduce quantities, reduction of erection time；Simultaneously in row
Water conduit stretches into filter well end permeable geotextiles parcel termination, thus the blockage that avoids seeping water is it is ensured that the smooth row of sole
Remove, reduce water pressure at the bottom of the foundation, and then reduce hidden dangers in project.
Brief description
Fig. 1 is the structural representation of high-speed railway double track tunnel substrate decompression drainage system of the present invention.
Fig. 2 is high-speed railway double track tunnel substrate decompression drainage system vertical view cutaway drawing of the present invention.
Fig. 3 is high-speed railway double track tunnel substrate decompression drainage system side sectional view of the present invention.
Fig. 4 is drainage duct structural representation of the present invention.
In figure: 1- centre drain；2- filter well；3- drainage duct；31- water seepage hole；4- rubble；The permeable geotextiles of 5-；
7- preliminary bracing；8- secondary lining.
Specific embodiment
With specific embodiment, the present invention is described in further details below in conjunction with the accompanying drawings.As shown in figure 1, a kind of high-speed iron
Road double track tunnel substrate decompression drainage system, tunnel inverted arch substrate is preset with filter well 2, in being provided with below the road surface of tunnel center line
Centre gutter 1, centre drain 1 side wall is provided with the drainage duct 3 extending down into filter well 2.
After inverted arch excavation completes, left and right sides suitable distance below centre drain, excavate rectangular cross section infiltration
Well, cross dimensions is length × wide=(60cm ~ 80cm) × (60cm ~ 80cm), and infiltration well depth is with deep near the tunnel central side borehole wall
Degree is reference, is advisable with 80cm, depending on other borehole wall depth are with tunnel inverted arch profile.
The drainage duct 3 lower end tube wall of the present embodiment is provided with multiple water seepage holes 31.Drainage duct adopts φ 100pvc to manage,
Its embedment infiltration well section arranges water seepage hole 31 according to blossom type, and pitch of holes is advisable with 5 ~ 10cm, as shown in Figure 4.
Drainage duct 3 lower end of the present embodiment is enclosed with permeable geotextiles 5.Drainage duct 3 stretches into infiltration well section using thoroughly
Water geotextiles colligation, can avoid seeping water hole plug it is ensured that the smooth exclusion of sole；The drainage duct other end is below cover plate
Centre drain is introduced the water at 5cm.
As shown in Fig. 2 drainage duct is longitudinally arranged along tunnel, spacing is advisable with 25 ~ 30cm；Filter well spacing is according to tunnel
Country rock rich water situation is advisable with 15m ~ 20m.
It is filled with rubble 4 in the filter well 2 of the present embodiment.As shown in figure 3, fixing drainage duct, will adopt in filter well
Block stone is filled the water penetration it is ensured that in filter well.
Claims (4)
1. a kind of high-speed railway double track tunnel substrate decompression drainage system is it is characterised in that tunnel inverted arch substrate is preset with infiltration
Well (2), is provided with centre drain (1) below the road surface of tunnel center line, centre drain (1) side wall is provided with to extend down into and oozes
The drainage duct (3) of well (2).
2. high-speed railway double track tunnel substrate according to claim 1 decompression drainage system is it is characterised in that described draining
Conduit (3) lower end tube wall is provided with multiple water seepage holes (31).
3. high-speed railway double track tunnel substrate according to claim 1 decompression drainage system is it is characterised in that described draining
Conduit (3) lower end is enclosed with permeable geotextiles (5).
4. high-speed railway double track tunnel substrate according to claim 1 decompression drainage system is it is characterised in that described infiltration
It is filled with rubble (4) in well (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611090371.9A CN106368732A (en) | 2016-12-01 | 2016-12-01 | Pressure releasing and drainage system for double-track tunnel base of high speed railway |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611090371.9A CN106368732A (en) | 2016-12-01 | 2016-12-01 | Pressure releasing and drainage system for double-track tunnel base of high speed railway |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106368732A true CN106368732A (en) | 2017-02-01 |
Family
ID=57892236
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611090371.9A Pending CN106368732A (en) | 2016-12-01 | 2016-12-01 | Pressure releasing and drainage system for double-track tunnel base of high speed railway |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106368732A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109236321A (en) * | 2018-11-28 | 2019-01-18 | 西南交通大学 | A kind of band can maintenance type drainage gallery composite lining of tunnel structure |
| CN116664582A (en) * | 2023-08-02 | 2023-08-29 | 四川公路桥梁建设集团有限公司 | Road surface detection method and device based on neural vision network |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201943177U (en) * | 2011-02-23 | 2011-08-24 | 四川省交通运输厅公路规划勘察设计研究院 | Highway tunnel central drainage inspection well |
| CN204419256U (en) * | 2015-01-20 | 2015-06-24 | 山西省交通科学研究院 | A kind of merging groove containing tunnel cable groove and roadside drainage ditch |
| CN104806270A (en) * | 2015-05-09 | 2015-07-29 | 西安科技大学 | Double-arch tunnel modularized middle wall with waterproofing and draining functions and construction method thereof |
| CN104818991A (en) * | 2015-03-30 | 2015-08-05 | 中铁二十四局集团福建铁路建设有限公司 | Construction method of residual slope wash tunnel with shallow cover and unsymmetrical pressure |
| CN206233951U (en) * | 2016-11-11 | 2017-06-09 | 中铁十二局集团第三工程有限公司 | Depressurize drainage system in a kind of high-speed railway double track tunnel base |
-
2016
- 2016-12-01 CN CN201611090371.9A patent/CN106368732A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201943177U (en) * | 2011-02-23 | 2011-08-24 | 四川省交通运输厅公路规划勘察设计研究院 | Highway tunnel central drainage inspection well |
| CN204419256U (en) * | 2015-01-20 | 2015-06-24 | 山西省交通科学研究院 | A kind of merging groove containing tunnel cable groove and roadside drainage ditch |
| CN104818991A (en) * | 2015-03-30 | 2015-08-05 | 中铁二十四局集团福建铁路建设有限公司 | Construction method of residual slope wash tunnel with shallow cover and unsymmetrical pressure |
| CN104806270A (en) * | 2015-05-09 | 2015-07-29 | 西安科技大学 | Double-arch tunnel modularized middle wall with waterproofing and draining functions and construction method thereof |
| CN206233951U (en) * | 2016-11-11 | 2017-06-09 | 中铁十二局集团第三工程有限公司 | Depressurize drainage system in a kind of high-speed railway double track tunnel base |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109236321A (en) * | 2018-11-28 | 2019-01-18 | 西南交通大学 | A kind of band can maintenance type drainage gallery composite lining of tunnel structure |
| CN116664582A (en) * | 2023-08-02 | 2023-08-29 | 四川公路桥梁建设集团有限公司 | Road surface detection method and device based on neural vision network |
| CN116664582B (en) * | 2023-08-02 | 2023-10-27 | 四川公路桥梁建设集团有限公司 | Road surface detection method and device based on neural vision network |
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| C06 | Publication | ||
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Application publication date: 20170201 |