CN203821457U - Rock-soil base plane liquid storage tank high-density polyethylene (HDPE) membrane leakproof structure - Google Patents
Rock-soil base plane liquid storage tank high-density polyethylene (HDPE) membrane leakproof structure Download PDFInfo
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- CN203821457U CN203821457U CN201420040954.0U CN201420040954U CN203821457U CN 203821457 U CN203821457 U CN 203821457U CN 201420040954 U CN201420040954 U CN 201420040954U CN 203821457 U CN203821457 U CN 203821457U
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- hdpe
- soil
- geomembranes
- basal plane
- plane liquid
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Abstract
The utility model discloses a rock-soil base plane liquid storage tank high-density polyethylene (HDPE) membrane leakproof structure, which is used to prevent a rock-soil base plane liquid storage tank from leaking, wherein a tank body and a slope leakproof structure are provided with groundwater drainage systems which comprise HDPE soil geomembranes (1), geotechnical cloths (2), plastic permeable french drains (3) and groundwater drainage pipes (4) from top to bottom, the thickness of the HDPE soil geomembranes (1) is 2mm, the specifications of the geotechnical cloths (2) are 200g/m2 filament non-woven geotechnical cloths, and the specifications of the plastic permeable french drains (3) are 10cm in width and 3cm in thickness. Air holes (5) having 10cm diameter are arranged on the HDPE soil geomembranes above the highest liquid level of each tank wall and below a slope top portion (7), and the distance between the circle centers of air holes and the slope top portion (7) is 30cm. Soil geomembrane covers which are 20cm in length and 25cm in width are covered on the surfaces of the air holes (5), the horizontal edges of the soil geomembrane covers close to the slope top portion (7) are sealed by squeezing and welding (6), and a half of two adjacent vertical edges are sealed by being squeezed and welded, prevents liquid on the HDPE soil geomembranes from leaking below the HDPE soil geomembranes through the air holes (5), and is used to discharge gas.
Description
Technical field
The utility model relates to a kind of HDPE film leakage preventing structure, in particular for the HDPE film leakage preventing structure of ground basal plane liquid reservoirs.
Background technology
The anti-permeation method that adopts HDPE geomembrane in liquid storage pond is applicable to various irregular ponds body compared with concrete anti-seepage, the lower and good seepage-proof property of short construction period, difficulty of construction, and therefore application is more and more extensive.The HDPE film leakage preventing structure of liquid reservoirs is based upon on the ground of ground compacting mostly at present, be subject to the impact of basal plane ground groundwater table and gas under leakage preventing structure design, geomembrane, construct after complete water filling, often occur that the HDPE film of laying welding produces the protruding phenomenon sticking out, be called gas bag.Gas bag problems affect pond body capacity, reduces use value, and has potential safety hazard when gas collection under film.
Summary of the invention
The gas producing in order to derive the underground ground of geomembrane, avoids producing gas bag phenomenon, and the utility model provides a kind of ground basal plane liquid reservoirs HDPE film leakage preventing structure, and this structure comprises underground water guide structure, takes into account gas under guide film simultaneously.
The utility model solves the technical scheme that its technical problem adopts: the underground water guide system that the pond body of Rock soil Foundation liquid reservoirs and slope seepage control structure form for HDPE geomembrane (1), geotextiles (2), the permeable french drain of plastics (3) and underground water discharge guiding pipe (4) from top to bottom.
HDPE geomembrane (1) thickness is 2mm, and geotextiles (2) specification is 200g/m
2long filament non-woven geotextile, the permeable french drain of plastics (3) specification is the thick 3cm of wide 10cm.
Each pool wall arranges the pore that diameter is 10cm (5), pore distance of center circle side slope top (7) 30cm more than the highest liquid level, on the following geomembrane in side slope top (7).
Pore (5) surface all covers the geotechnological membrane cover of long 20cm, wide 25cm, geotechnique's membrane cover adopts extruding welding (6) sealing near the horizontal edge of side slope top (7), 1/2 of two adjacent vertical edges adopt extruding welding (6) sealing, prevent that on film, liquid leaks out under film by pore (5), simultaneously for Exhaust Gas.
The beneficial effects of the utility model are: a kind of HDPE film leakage preventing structure for ground basal plane liquid reservoirs, effectively water and gas under guide film, avoids geomembrane to produce gas bag problem.
Brief description of the drawings
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is the cross-sectional schematic of the utility model ground basal plane liquid reservoirs HDPE film leakage preventing structure.
Fig. 2 is the floor map of the utility model ground basal plane liquid reservoirs HDPE film leakage preventing structure.
Fig. 3 is the pore schematic perspective view of the utility model ground basal plane liquid reservoirs HDPE film leakage preventing structure.
1.HDPE geomembrane in figure, 2. geotextiles, the 3. permeable french drain of plastics, 4. underground water discharge guiding pipe, 5. pore, 6. extruding welding, 7. side slope top.
Detailed description of the invention
At the bottom of pond, in ground lower groove, place underground water discharge guiding pipe (4), at the bottom of collecting pit and the liquid of the permeable french drain of the plastics of side slope (3) guide, and the permeable french drain of plastics (3) forms liquid reservoirs underground water guide system.
In the underground water guide system of ground basal plane, arrange after 50cm compacting clay, lay the permeable french drains of plastics (3), geotextiles (2) and HDPE geomembrane (1).The interval of 1m to 3m is set between the permeable french drain of plastics (3), is taped against side slope top (7), adopt anchor studs to be fixed processing.
On the HDPE of every side pool wall geomembrane (1), open the pore that diameter is 10cm (5), and gas passage under the permeable french drain of plastics (3) formation film, for discharging gas under film.Pore (5) edge is apart from high liquid level (HLL) 20cm at least above, distance of center circle side slope top (7) 30cm.
Pore (5) top covers the geotechnological membrane cover of long 20cm, wide 25cm, geotechnique's membrane cover center covers after pore, adopt extruding welding (6) all to seal near the horizontal edge at side slope top (7), adjacent two vertical edges adopt extruding welding (6) sealing 1/2, and other edges do not process.The geotechnological membrane cover edge of sealing is used for preventing on film that the liquid such as rainwater leak out under film by pore (5), and the geotechnological membrane cover edge not processing can be expelled in atmosphere by space gas under film.
Claims (4)
1. ground basal plane liquid reservoirs HDPE film leakage preventing structure, for the antiseepage of ground basal plane liquid reservoirs, it is characterized in that: the underground water guide system that the pond body of Rock soil Foundation liquid reservoirs and slope seepage control structure form for HDPE geomembrane (1), geotextiles (2), the permeable french drain of plastics (3) and underground water discharge guiding pipe (4) from top to bottom.
2. ground basal plane liquid reservoirs HDPE film leakage preventing structure according to claim 1, is characterized in that: HDPE geomembrane (1) thickness is 2mm, and geotextiles (2) specification is 200g/m
2long filament non-woven geotextile, the permeable french drain of plastics (3) specification is the thick 3cm of wide 10cm.
3. ground basal plane liquid reservoirs HDPE film leakage preventing structure according to claim 1, it is characterized in that: each pool wall arranges the pore that diameter is 10cm (5), pore distance of center circle side slope top (7) 30cm more than the highest liquid level, on the following geomembrane in side slope top (7).
4. ground basal plane liquid reservoirs HDPE film leakage preventing structure according to claim 1, it is characterized in that: pore (5) surface all covers the geotechnological membrane cover of long 20cm, wide 25cm, geotechnique's membrane cover adopts extruding welding (6) sealing near the horizontal edge of side slope top (7), 1/2 of two adjacent vertical edges adopt extruding welding (6) sealing, prevent that on film, liquid leaks out under film by pore (5), simultaneously for Exhaust Gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420040954.0U CN203821457U (en) | 2014-01-23 | 2014-01-23 | Rock-soil base plane liquid storage tank high-density polyethylene (HDPE) membrane leakproof structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420040954.0U CN203821457U (en) | 2014-01-23 | 2014-01-23 | Rock-soil base plane liquid storage tank high-density polyethylene (HDPE) membrane leakproof structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203821457U true CN203821457U (en) | 2014-09-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420040954.0U Expired - Fee Related CN203821457U (en) | 2014-01-23 | 2014-01-23 | Rock-soil base plane liquid storage tank high-density polyethylene (HDPE) membrane leakproof structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN203821457U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103726515A (en) * | 2014-01-23 | 2014-04-16 | 北京锄禾环保技术有限公司 | High-density polyethylene (HDPE) membrane impervious structure of rock and soil base liquid storage tank |
-
2014
- 2014-01-23 CN CN201420040954.0U patent/CN203821457U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103726515A (en) * | 2014-01-23 | 2014-04-16 | 北京锄禾环保技术有限公司 | High-density polyethylene (HDPE) membrane impervious structure of rock and soil base liquid storage tank |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140910 Termination date: 20160123 |
|
| EXPY | Termination of patent right or utility model |