CN104863116A - Directional drainage two-cloth one-film anti-seepage drainage structure - Google Patents
Directional drainage two-cloth one-film anti-seepage drainage structure Download PDFInfo
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- CN104863116A CN104863116A CN201510308554.2A CN201510308554A CN104863116A CN 104863116 A CN104863116 A CN 104863116A CN 201510308554 A CN201510308554 A CN 201510308554A CN 104863116 A CN104863116 A CN 104863116A
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- ridges
- film
- cloth
- plastic film
- rib
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
- E02D3/02—Improving by compacting
- E02D3/10—Improving by compacting by watering, draining, de-aerating or blasting, e.g. by installing sand or wick drains
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Structural Engineering (AREA)
- Agronomy & Crop Science (AREA)
- Environmental & Geological Engineering (AREA)
- Soil Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Road Paving Structures (AREA)
Abstract
The invention discloses a directional drainage two-cloth one-film anti-seepage drainage structure which is formed by two layers of geotechnical cloths and a layer of ridge plastic film clamped between the two layers of geotechnical cloths. The geotechnical cloths are filament non-woven fabrics, the ridge plastic film is formed by a plastic film and parallel and protruded ridges on the film surface; and the ridges and the plastic film are formed in one time. The plastic film is formed by processing high density polyethylene or polyvinyl chloride, the thickness of the plastic film is 0.3-2.0 mm, and one side or two sides of the plastic film are provided with the parallel and protruded ridges. The section of the ridges is trapezoidal or semicircular, the intervals between the ridges are 20-100 mm, and the heights of the ridges are 0.5-2.0 mm. The directional drainage two-cloth one-film anti-seepage drainage structure is arranged on the surface of a subgrade or a subgrade body, the direction of the ridges is perpendicular to the direction of the subgrade; after permeating into the ridge plastic film, rainwater flows downwards along the cross slope of the subgrade along the film surface and flows outside an anti-seepage area in the direction of the ridges, the water flowing area is reduced, the flow velocity is accelerated, infiltration water is drained as soon as possible, and the directional drainage two-cloth one-film anti-seepage drainage structure has wide application prospect in anti-seepage drainage engineering such as the railway subgrade.
Description
Technical field
The present invention relates to railway and highway subgrade construction, particularly relate to roadbed antiseepage drainage works.
Background technology
The infiltration of railway and highway subgrade face surface water is one of Main Diseases of Subgrade, surface water seapage can not be drained in time, can cause Mud pumping and roadbed frost damage, adds the work of roadbed maintenance, also bring hidden danger to safe operation, especially non-fragment orbit railway is more subject to its harm.
Railway and highway subgrade face shape are leg-of-mutton, and height both sides, center are low, and the normal geomembrane that adopts is as antiseepage drainage measure.Geomembrane is with plastic material as impervious material, and be laid on road bed or surperficial following certain depth according to road bed shape, the medium sand usually also after geomembrane lays 5cm is up and down as topping.Like this, after top surface water penetrates into rete, under the effect of roadbed cross fall, flow to direction of fall along face, finally flow to beyond roadbed body.
Fig. 1 shows existing geomembrane anti-seepage discharge structure.As shown in Figure 1, geomembrane is made up of geotextiles 1 and plastic foil 2, is arranged in roadbed filling, flows, finally flow to beyond roadbed body after surface water infiltrates along plastic foil 2 to direction of fall.
But existing geomembrane anti-seepage discharge structure, surface water infiltrates along the flowing of face vertical and horizontal, finally flows to beyond roadbed body, adds the flow distance of water on film and flowing time, extends the time of staying of water in roadbed, be unfavorable for roadbed maintenance.
Summary of the invention
For geomembrane anti-seepage discharge structure present situation in existing railway bed, the present invention releases a kind of two cloth one film antiseepage discharge structures newly, its object is to, adopt the geomembrane that two-layer nonwoven inner clip one deck rib plastic foil is formed, earth's surface water leaking-in is enable to flow rapidly to beyond antiseepage district along rib, reduce the time of staying of water in roadbed, play better drainage.
The roadbed that the present invention relates to directed draining two cloth one film antiseepage discharge structure, be made up of two-layer geotextiles inner clip one deck rib plastic foil, geotextiles adopts continuous yarn non-woven fabrics, and rib plastic foil is made up of the rib of the parallel projection on plastic foil and face thereof, rib and plastic foil one-shot forming.Plastic foil processes with high density polyethylene (HDPE) or polyvinyl chloride, plastics thickness 0.3mm ~ 2.0mm, wherein there is the rib of parallel projection on one side or two sides.Rib and plastic foil one-shot forming, the cross sectional shape of rib is trapezoidal or semicircle.Rib spacing is 20 ~ 100mm, high 0.5 ~ 2.0mm.
The roadbed that the present invention relates to directed draining two cloth one film antiseepage discharge structure is arranged in road bed or roadbed body, and rib trend is vertical with road-trend, also can suitably adjust rib trend in conjunction with roadbed longitudinal grade.Like this, top surface water seapage flows along face to direction of fall after arriving two cloth one retes under the effect of roadbed cross fall, and focuses on every bar rib edge, flows to beyond antiseepage district along rib direction.
Advantage of the present invention is the reduction of lower infiltration flow distance on film, reduces the flow area of water, accelerates flow velocity, and lower infiltration is discharged as early as possible, and drainage effect is obvious, has broad application prospects in the antiseepage drainage workss such as railway bed.
Accompanying drawing explanation
Fig. 1 is the geomembrane waterproof/drainage structure schematic diagram of prior art;
Fig. 2 is the roadbed directed draining two cloth one film leakage preventing structure schematic diagram that the present invention relates to.
Description of symbols in figure:
1, geotextiles 2, common plastics film
3, continuous yarn non-woven fabrics 3, rib plastic foil
Detailed description of the invention
Below in conjunction with accompanying drawing, technical scheme of the present invention is described further.As shown in Figure 2, the roadbed that the present invention relates to directed draining two cloth one film leakage preventing structure comprises two-layer continuous yarn non-woven fabrics 3 inner clip one deck rib plastic foil 4, rib plastic foil 4 has the rib of parallel projection.Thick 0.3mm ~ the 2.0mm of plastic foil 4, on the one side being arranged on plastic foil 4 or two sides.Rib adopts plastic foil 3 material, with plastic foil 3 one-shot forming.The cross sectional shape of rib is trapezoidal or semicircle.Rib spacing is 20 ~ 100mm, high 0.5 ~ 2.0mm.
Claims (4)
1. a directed draining two cloth one film antiseepage discharge structure, be arranged on the roadbed of cross fall, it is characterized in that: be made up of two-layer geotextiles inner clip one deck rib plastic foil, geotextiles adopts continuous yarn non-woven fabrics, rib plastic foil is made up of the rib of projection parallel on plastic foil and face thereof, rib and plastic foil one-shot forming.
2. roadbed according to claim 1 directed draining two cloth one film antiseepage discharge structure, is characterized in that: described plastics thickness 0.3mm ~ 2.0mm.
3. roadbed according to claim 1 directed draining two cloth one film antiseepage discharge structure, is characterized in that: the cross sectional shape of described rib is for semicircle, and rib spacing is 20 ~ 100mm, high 0.5 ~ 2.0mm.
4. roadbed according to claim 1 directed draining two cloth one film antiseepage discharge structure, is characterized in that: the cross sectional shape of described rib is trapezoidal, and rib spacing is 20 ~ 100mm, high 0.5 ~ 2.0mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510308554.2A CN104863116A (en) | 2015-06-08 | 2015-06-08 | Directional drainage two-cloth one-film anti-seepage drainage structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510308554.2A CN104863116A (en) | 2015-06-08 | 2015-06-08 | Directional drainage two-cloth one-film anti-seepage drainage structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104863116A true CN104863116A (en) | 2015-08-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510308554.2A Pending CN104863116A (en) | 2015-06-08 | 2015-06-08 | Directional drainage two-cloth one-film anti-seepage drainage structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN104863116A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110528354A (en) * | 2019-09-20 | 2019-12-03 | 中国水利水电第三工程局有限公司 | A kind of urban road permeable pavement structure and its construction method |
| CN114525706A (en) * | 2022-03-31 | 2022-05-24 | 山东路德新材料股份有限公司 | Composite directional drainage composite film |
| CN115341427A (en) * | 2022-09-06 | 2022-11-15 | 东南大学 | Highway seepage-proofing drainage structure based on capillary isolation principle and construction method thereof |
| CN117646355A (en) * | 2024-01-03 | 2024-03-05 | 中国科学院西北生态环境资源研究院 | Frost-proof high-speed railway base structure of frozen soil area in season |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0913361A (en) * | 1995-06-27 | 1997-01-14 | Unitika Ltd | Soil water drainage material |
| CN203531023U (en) * | 2013-05-06 | 2014-04-09 | 上海甚致环保科技有限公司 | Water-proof and drainage integrated coiled material |
| CN203795261U (en) * | 2014-03-14 | 2014-08-27 | 中国科学院寒区旱区环境与工程研究所 | Embankment structure for preventing and treating collapsibility and freeze injury of loess roadbed in seasonally frozen ground region |
| CN104532712A (en) * | 2014-12-25 | 2015-04-22 | 中交第二公路勘察设计研究院有限公司 | Design method and structure for preventing settlement-deformation damage of soft-rock subgrade of road |
| CN204780853U (en) * | 2015-06-08 | 2015-11-18 | 铁道第三勘察设计院集团有限公司 | Directional two cloth of a drainage membrane prevention of seepage drainage structures |
-
2015
- 2015-06-08 CN CN201510308554.2A patent/CN104863116A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0913361A (en) * | 1995-06-27 | 1997-01-14 | Unitika Ltd | Soil water drainage material |
| CN203531023U (en) * | 2013-05-06 | 2014-04-09 | 上海甚致环保科技有限公司 | Water-proof and drainage integrated coiled material |
| CN203795261U (en) * | 2014-03-14 | 2014-08-27 | 中国科学院寒区旱区环境与工程研究所 | Embankment structure for preventing and treating collapsibility and freeze injury of loess roadbed in seasonally frozen ground region |
| CN104532712A (en) * | 2014-12-25 | 2015-04-22 | 中交第二公路勘察设计研究院有限公司 | Design method and structure for preventing settlement-deformation damage of soft-rock subgrade of road |
| CN204780853U (en) * | 2015-06-08 | 2015-11-18 | 铁道第三勘察设计院集团有限公司 | Directional two cloth of a drainage membrane prevention of seepage drainage structures |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110528354A (en) * | 2019-09-20 | 2019-12-03 | 中国水利水电第三工程局有限公司 | A kind of urban road permeable pavement structure and its construction method |
| CN114525706A (en) * | 2022-03-31 | 2022-05-24 | 山东路德新材料股份有限公司 | Composite directional drainage composite film |
| CN115341427A (en) * | 2022-09-06 | 2022-11-15 | 东南大学 | Highway seepage-proofing drainage structure based on capillary isolation principle and construction method thereof |
| CN115341427B (en) * | 2022-09-06 | 2024-05-28 | 东南大学 | Highway seepage-proofing drainage structure based on capillary isolation principle and construction method thereof |
| CN117646355A (en) * | 2024-01-03 | 2024-03-05 | 中国科学院西北生态环境资源研究院 | Frost-proof high-speed railway base structure of frozen soil area in season |
| CN117646355B (en) * | 2024-01-03 | 2024-05-10 | 中国科学院西北生态环境资源研究院 | Frost-proof high-speed railway base structure of frozen soil area in season |
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| C06 | Publication | ||
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Application publication date: 20150826 |