CN115419088A - Open trench tunnel drainage structures - Google Patents
Open trench tunnel drainage structures Download PDFInfo
- Publication number
- CN115419088A CN115419088A CN202211142044.9A CN202211142044A CN115419088A CN 115419088 A CN115419088 A CN 115419088A CN 202211142044 A CN202211142044 A CN 202211142044A CN 115419088 A CN115419088 A CN 115419088A
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- CN
- China
- Prior art keywords
- layer
- tunnel
- open
- drainage
- ditch
- 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.)
- Granted
Links
- 239000010426 asphalt Substances 0.000 claims abstract description 45
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 43
- 239000002344 surface layer Substances 0.000 claims abstract description 19
- 239000010410 layer Substances 0.000 claims description 48
- 238000001914 filtration Methods 0.000 claims description 4
- 230000008595 infiltration Effects 0.000 claims description 3
- 238000001764 infiltration Methods 0.000 claims description 3
- 239000004745 nonwoven fabric Substances 0.000 claims description 3
- 239000011148 porous material Substances 0.000 abstract description 7
- 239000004575 stone Substances 0.000 description 5
- 239000004567 concrete Substances 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 4
- 201000010099 disease Diseases 0.000 description 3
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 3
- 238000007726 management method Methods 0.000 description 2
- 238000009435 building construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D19/00—Keeping dry foundation sites or other areas in the ground
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C11/00—Details of pavings
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C11/00—Details of pavings
- E01C11/22—Gutters; Kerbs ; Surface drainage of streets, roads or like traffic areas
- E01C11/224—Surface drainage of streets
- E01C11/227—Gutters; Channels ; Roof drainage discharge ducts set in sidewalks
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C7/00—Coherent pavings made in situ
- E01C7/08—Coherent pavings made in situ made of road-metal and binders
- E01C7/18—Coherent pavings made in situ made of road-metal and binders of road-metal and bituminous binders
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/04—Gullies inlets, road sinks, floor drains with or without odour seals or sediment traps
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/04—Gullies inlets, road sinks, floor drains with or without odour seals or sediment traps
- E03F5/06—Gully gratings
Landscapes
- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Architecture (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Water Supply & Treatment (AREA)
- Public Health (AREA)
- Health & Medical Sciences (AREA)
- Mining & Mineral Resources (AREA)
- General Engineering & Computer Science (AREA)
- Paleontology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Road Paving Structures (AREA)
Abstract
The invention discloses an open trench tunnel drainage structure which mainly comprises side ditches, transverse ditches, a water delivery structure and the like. The lateral side ditch can quickly discharge rainwater on the cross slope of the tunnel. The cross-sectional ditch arranged near the tunnel portal can reduce rainwater entering the tunnel buried section. The cross-section ditch arranged at the lowest point of the longitudinal slope of the tunnel can quickly guide rainwater entering the buried section of the tunnel to the pump room for discharge. The water delivery structure arranged near the transverse ditch can lead out rainwater which is gathered at the side wall of the transverse ditch and penetrates below the road surface. The drainage pore canal arranged on the side part of the asphalt surface layer can lead out rainwater permeating below the pavement in time in a rainy period. The invention solves the problems that the asphalt pavement of the existing open-cut tunnel is easy to deform and form pits.
Description
Technical Field
The invention relates to the technical field of building construction, in particular to an open cut tunnel drainage structure.
Background
In open-cut tunnel engineering, a tunnel drainage system mainly plays a role in introducing rainwater entering a tunnel into a pump room, and then the rainwater in the pump room is pumped and drained into a water body or a drainage pipe network through a submersible pump.
At present, open-cut tunnel pavements are mostly asphalt pavements, and water permeating into gaps of the asphalt pavements gradually seeps down to reinforced concrete bottom plates of tunnels. Due to the repeated action of the traveling load, the repeated circulation action of water pressure and vacuum negative pressure suction is further generated, water gradually permeates into the interface of asphalt and aggregate, so that the adhesion of the asphalt is reduced, the cohesive force is gradually lost, an asphalt film is separated from the surface of the aggregate, the asphalt mixture is peeled off and loosened, and then pit grooves, extrusion deformation and other damage phenomena on the surface of the asphalt are generated.
The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.
Disclosure of Invention
In order to overcome the defects in the prior art, the open cut tunnel drainage structure is provided so as to solve the problems that the asphalt pavement of the existing open cut tunnel is easy to deform and form pits.
In order to achieve the above object, there is provided an open trench tunnel drainage structure, comprising:
the pavement structure of the open trench comprises a bottom plate and an asphalt surface layer laid on the bottom plate, a through groove arranged along the width direction of the open trench is formed in the asphalt surface layer, the bottom of the through groove penetrates through the asphalt surface layer, the bottom plate is provided with the transverse trench, the transverse trench and the through groove are arranged in the same direction and are arranged in the middle of the through groove, and the transverse trench is connected to the pump house;
the integrated cover plate is poured in the through groove, and the middle part of the integrated cover plate is provided with a downward seepage hole channel communicated with the transverse ditch;
the lateral ditch is arranged on the lateral part of the asphalt surface layer, is arranged along the length direction of the open trench tunnel and is crossed with the transverse ditch;
the asphalt pavement comprises an asphalt pavement, wherein a notch is formed in the lower part of one side, close to the through groove, of the asphalt pavement, the water conveying structure is embedded in the notch and comprises a waterproof layer, a water seepage layer laid on the waterproof layer and a water diversion layer laid on the water seepage layer, the water seepage layer comprises water-filtered broken stones filled between the waterproof layer and the water diversion layer and a drain pipe buried in the water-filtered broken stones, a plurality of water inlet holes are formed in the pipe wall of the drain pipe, and the drain pipe is communicated with the lateral ditch.
Further, the water diversion layer is a non-woven fabric layer.
Furthermore, the asphalt surface course including pour in screed-coat on the bottom plate with lay in asphalt layer on the screed-coat, asphalt layer with the handing-over department of screed-coat communicate through sluicing pore in the side ditch.
Furthermore, the water drainage pore passage is obliquely arranged, the upper end of the water drainage pore passage is connected to the end part of the drain pipe, and the lower end of the water drainage pore passage is communicated with the side ditch.
Furthermore, the asphalt surface layer is provided with two side parts opposite to each other in the width direction of the open-cut tunnel, and the two side parts are respectively provided with the side ditches.
Further, the transverse trench is arranged at a low-lying position of the open trench.
Further, the trench bottom of the side trench extends into the bottom plate.
Further, the groove bottom of the cross groove is flush with the groove bottom of the side groove.
The open-cut tunnel drainage structure has the advantages that the problem that rainwater seeping to the tunnel pavement is difficult to drain by a tunnel drainage system is solved, the incidence rate of asphalt pavement pit grooves and pushing deformation diseases under the repeated action of the rainwater seeping and the traffic load can be effectively improved, the travelling comfort and the safety of the tunnel are improved, the frequency of tunnel pavement maintenance is reduced, and the management and maintenance cost in the tunnel operation period is reduced.
Drawings
Other features, objects and advantages of the present application will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, made with reference to the accompanying drawings in which:
fig. 1 is a schematic structural view of a drainage structure of an open trench tunnel according to an embodiment of the present invention.
Fig. 2 isbase:Sub>A cross-sectional view taken atbase:Sub>A-base:Sub>A in fig. 1.
Fig. 3 is a schematic structural diagram of a water delivery structure according to an embodiment of the present invention.
Fig. 4 is a schematic structural view of a drainage channel according to an embodiment of the present invention.
Detailed Description
The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and not restrictive of the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.
Referring to fig. 1 to 4, the present invention provides a drainage structure for an open trench tunnel, including: a transverse ditch 1, an integrated cover plate 2, a lateral ditch 3 and a water delivery structure 4.
In the present embodiment, the pavement structure 5 of the open trench tunnel includes an asphalt pavement 51 and a bottom slab 52. The asphalt surface layer 51 is laid on the upper portion of the bottom plate 52. The asphalt surface layer 51 has through grooves formed therein along the width direction of the open trench tunnel. The bottom of the through groove penetrates through the asphalt surface layer 51.
The asphalt overlay, in turn, includes a screed layer 512 and an asphalt layer 511. Wherein, the leveling layer 512 is poured on the upper part of the bottom plate. The asphalt layer 511 is laid on the upper part of the leveling layer.
A transverse groove 1 is cut in the bottom plate 52. Specifically, the transverse groove is formed in the upper surface of the bottom plate. The transverse groove 1 and the through groove are arranged in the same direction and are arranged in the middle of the through groove. The transverse trench 1 is connected to a pump house 6.
The integrated cover plate 2 is poured in the through groove. The middle part of the integrated cover plate 2 is provided with a infiltration pore canal communicated with the transverse ditch 1. Specifically, the integrated cover plate comprises concrete and a cover plate body. Wherein, the outside of the relative both sides of transversal ditch has been pour concrete, and the both sides of apron body inlay respectively in the concrete of the relative both sides of locating transversal ditch. The cover plate body is aligned with the transverse groove.
The asphalt surface layer 51 has a side ditch 3 on its side. The side ditches 3 are arranged along the length direction of the open cut tunnel. The lateral grooves 3 are arranged to intersect with the transverse grooves 1.
In some embodiments, the asphalt pavement 51 has two opposite side portions in the width direction of the open trench tunnel, and the two side portions are respectively opened with the side ditches 3. The groove bottom of the lateral groove 3 extends into the bottom plate 52.
In the present embodiment, the transverse trench 1 is provided in a low-lying portion of the open trench tunnel. The bottom of the transverse groove 1 is flush with the bottom of the lateral groove 3.
In this embodiment, a notch is formed in a lower portion of the asphalt surface layer 51 on a side close to the through groove. The water delivery structure 4 is embedded in the gap.
Specifically, the water conveyance structure 4 includes a waterproof layer 41, a water seepage layer 42, and a water diversion layer 43. Wherein, the water seepage layer 42 is laid on the upper part of the waterproof layer 41. The drainage layer 43 is laid on the upper part of the water seepage layer 42.
The permeable layer 42 includes a drainage stone 421 and a drainage pipe 422. The water-filtered macadam 421 is filled between the waterproof layer 41 and the water diversion layer 43. The drain pipe 422 is embedded in the water-filtered crushed stone 421. The wall of the drain pipe 422 is provided with a plurality of water inlets. The drain pipe 422 communicates with the lateral groove 3.
The water-wicking layer 43 is a nonwoven fabric layer. When the water conveying structure is poured, the diversion layer can prevent concrete mortar of the leveling layer from being plugged in the water inlet hole of the drain pipe. In this embodiment, the drain pipe is a rectangular pipe. The water-filtering broken stones are respectively arranged on two opposite sides of the drain pipe. The outer diameter of the drain pipe is adapted to the thickness of the water-filtering gravel.
In a preferred embodiment, the junction between the asphalt layer and the leveling layer is connected to the side ditches via a drainage channel 513.
Further, the drainage passage 513 is obliquely arranged. The upper end of the drainage duct 513 is connected to the end of the drain pipe. The lower end of the drainage channel 513 is communicated with the side groove.
The open-cut tunnel drainage structure solves the problems of unsmooth drainage in the tunnel in the rainy period and difficulty in drainage after rainwater infiltration to cause pavement diseases. The drainage knot of the open cut tunnel mainly comprises a side ditch, a transverse ditch, a water delivery structure and the like. The lateral side ditch can quickly discharge rainwater on the cross slope of the tunnel. The transverse ditch arranged near the tunnel portal can reduce rainwater entering the buried section of the tunnel. The cross-section ditch arranged at the lowest point of the longitudinal slope of the tunnel can quickly guide rainwater entering the buried section of the tunnel to the pump room for discharge. The water delivery structure arranged near the transverse ditch can lead out rainwater which is gathered at the side wall of the transverse ditch and penetrates below the road surface. The drainage pore canal arranged on the side part of the asphalt surface layer can timely lead out rainwater permeating below the pavement in a rainy period.
The open-cut tunnel drainage structure solves the problem that a tunnel drainage system is difficult to drain rainwater seeping to the tunnel pavement, can effectively improve the incidence rate of asphalt pavement pit grooves and pushing deformation diseases under the repeated action of the seeping rainwater and the running load, improves the running comfort and safety of the tunnel, reduces the frequency of tunnel pavement maintenance, and reduces the management and maintenance cost in the tunnel operation period.
The foregoing description is only exemplary of the preferred embodiments of the application and is illustrative of the principles of the technology employed. It will be appreciated by a person skilled in the art that the scope of the invention according to the present application is not limited to the specific combination of the above-mentioned features, but also covers other embodiments where any combination of the above-mentioned features or their equivalents is made without departing from the inventive concept. For example, the above features may be replaced with (but not limited to) features having similar functions disclosed in the present application.
Claims (8)
1. The utility model provides an open cut tunnel drainage structures which characterized in that includes:
the pavement structure of the open-cut tunnel comprises a bottom plate and an asphalt surface layer laid on the bottom plate, a through groove arranged along the width direction of the open-cut tunnel is formed in the asphalt surface layer, the bottom of the through groove penetrates through the asphalt surface layer, the bottom plate is provided with the transverse groove, the transverse groove and the through groove are arranged in the same direction and are arranged in the middle of the through groove, and the transverse groove is connected to a pump room;
the integral cover plate is poured in the through groove, and the middle part of the integral cover plate is provided with an infiltration hole channel communicated with the transverse groove;
the side ditch is arranged on the side part of the asphalt surface layer, the side ditch is arranged along the length direction of the open-cut tunnel, and the side ditch and the transverse ditch are arranged in a crossed manner;
the asphalt pavement comprises a water conveying structure, wherein a notch is formed in the lower portion, close to one side of the through groove, of the asphalt surface layer, the water conveying structure is embedded in the notch and comprises a waterproof layer, a water seepage layer and a water diversion layer, the water seepage layer is laid on the waterproof layer and is composed of water filtering gravels filled between the waterproof layer and the water diversion layer, the water drainage layer is buried in the water filtering gravels, a plurality of water inlet holes are formed in the pipe wall of each water drainage pipe, and the water drainage pipes are communicated with the side ditches.
2. The open-cut tunnel drainage structure of claim 1, wherein the drainage layer is a non-woven fabric layer.
3. The open-cut tunnel drainage structure according to claim 1, wherein the asphalt surface layer comprises a leveling layer poured on the bottom plate and an asphalt layer laid on the leveling layer, and a joint of the asphalt layer and the leveling layer is communicated with the lateral ditch through a drainage duct.
4. The open trench tunnel drainage structure according to claim 3, wherein the drainage duct is provided in an inclined manner, an upper end of the drainage duct is connected to an end portion of the drain pipe, and a lower end of the drainage duct is communicated with the side ditch.
5. The open trench tunnel drainage structure according to claim 1, wherein the asphalt surface layer has two side portions opposed to each other in a width direction of the open trench tunnel, and the side grooves are opened in the two side portions, respectively.
6. The open trench tunnel drainage structure of claim 1, wherein the cross-sectional trench is provided at a low-lying portion of the open trench tunnel.
7. The open trench tunnel drainage structure of claim 1, wherein the trench bottoms of the lateral trenches extend into the floor.
8. The open trench tunnel drainage structure of claim 7, wherein the bottom of the cross trench is flush with the bottom of the side trench.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211142044.9A CN115419088B (en) | 2022-09-20 | 2022-09-20 | Drainage structure of open cut tunnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211142044.9A CN115419088B (en) | 2022-09-20 | 2022-09-20 | Drainage structure of open cut tunnel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115419088A true CN115419088A (en) | 2022-12-02 |
| CN115419088B CN115419088B (en) | 2024-04-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211142044.9A Active CN115419088B (en) | 2022-09-20 | 2022-09-20 | Drainage structure of open cut tunnel |
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Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002294611A (en) * | 2001-03-30 | 2002-10-09 | Okuno Kogyo Kk | Drain structure for elevated road |
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| NL1040236C2 (en) * | 2013-06-03 | 2014-12-08 | Haner Infra Innovatie B V | TUNNEL SETUP. |
| JP5982027B1 (en) * | 2015-03-18 | 2016-08-31 | 寿建設株式会社 | Water leakage countermeasures for tunnels constructed by the Natom method |
| CN208073551U (en) * | 2018-04-19 | 2018-11-09 | 四川省交通运输厅公路规划勘察设计研究院 | Tunnel drainage system |
| CN111365071A (en) * | 2020-04-10 | 2020-07-03 | 中铁二院工程集团有限责任公司 | Cold region tunnel ditch heat preservation system |
| CN111535855A (en) * | 2020-03-16 | 2020-08-14 | 中铁西南科学研究院有限公司 | Cooperative drainage system and drainage method for ditches in railway double-track tunnel |
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2022
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| CN115419088B (en) | 2024-04-12 |
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