CN205296241U - A seepage prevention structure for endangering dilatation after useless security landfill field closes - Google Patents
A seepage prevention structure for endangering dilatation after useless security landfill field closes Download PDFInfo
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- CN205296241U CN205296241U CN201520948606.8U CN201520948606U CN205296241U CN 205296241 U CN205296241 U CN 205296241U CN 201520948606 U CN201520948606 U CN 201520948606U CN 205296241 U CN205296241 U CN 205296241U
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Abstract
The utility model discloses a seepage prevention structure for endangering dilatation after useless security landfill field closes, seepage prevention structure sets up on the body is piled in plastic, seepage prevention structure is including by the last dilatation filtration liquid drainage guide layer that down sets gradually, dilatation barrier layer, dilatation protective layer, closing barrier layer and the gaseous drainage guide layer of landfill, the gaseous drainage guide layer of landfill sets up the upper portion of piling the body in plastic, the body is piled for landfill after the dilatation in filtration liquid drainage guide layer upper portion after the dilatation. The utility model discloses a seepage prevention structure collects the useless landfill gas of piling the body of danger that closes, and the useless body of guaranteeing to close under the barrier layer of piling of danger can not lead to the fact adverse effect to the landfill place of dilatation, simultaneously, adopt double -deck HDPE geomembrane seepage prevention structure, guarantee that the polluted environment is leaked to useless can the emergence of danger of new landfill to filtration liquid to its production is collected.
Description
Technical field
This utility model relates to the leakage preventing structure of dilatation after a kind of closing, particularly relate to a kind of close for useless security landfill field of endangering after the leakage preventing structure of dilatation.
Background technology
Along with economic development, population increase and people's raising to the environmental consciousness of living environment, and land resource is in short supply, will obtain the useless security landfill field of new danger also more and more higher to the difficulty processing danger wastes.
And extend based on former address, dilatation is one of most economical and effective means solving hazardous waste, on the other hand, along with people's raising to environmental consciousness, requirement hazardous waste being processed to standard is also more and more higher, and the security landfill field built in one's early years, due to the time limit relatively morning built, there is many places not reaching new standard, but through use for many years, it is uneconomic for transporting security landfill completely, and there is many technical barriers, and be further continued for using, it it is again the irresponsibility to environment, therefore can adopt and the processing method of dilatation after the closing of useless for danger security landfill field is disposed.
The basis of former site carries out dilatation, significant to economizing the land resource. Extension project is built in top, original security landfill field, significantly reduces land development cost, improves the reasonable reuse ratio of resource, will be one of following major way strengthening security landfill field disposal ability.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of for the leakage preventing structure of dilatation after useless security landfill field closing of endangering.
In order to solve above-mentioned technical problem; this utility model provides a kind of for the leakage preventing structure of dilatation after useless security landfill field closing of endangering; described leakage preventing structure is arranged on the heap body of shaping; described leakage preventing structure includes the dilatation percolate lead layer, dilatation impervious barrier, dilatation protective layer, closing impervious barrier and the landfill gas guide layer that set gradually from top to bottom; described landfill gas guide layer is arranged on the top of the heap body of shaping, and after described dilatation, percolate lead layer top is landfill heap body after dilatation.
Further, described landfill gas guide layer is disposed with ground floor geotechnique's filter screen, granule lead layer, second layer geotechnique's filter screen from top to bottom.
Further, the thickness of described granule lead layer is more than 200mm.
Further, described closing impervious barrier is the HDPE geomembrane that thickness is not less than 1.0mm.
Further, described closing impervious barrier is the LLDPE geomembrane that thickness is not less than 1.0mm.
Further, described expansion protective layer is the clay compacted lift that 0.3m to 0.5m is thick.
Further, described dilatation impervious barrier is disposed with filament nonwoven geotextiles protective layer, main antiseepage HDPE geomembrane, soil engineering composite drainage network, secondary antiseepage HDPE geomembrane, GCL auxiliary seepage proof layer from top to bottom.
Further, the thickness of described main antiseepage HDPE geomembrane is not less than 2mm, and the thickness of secondary antiseepage HDPE geomembrane is not less than 1mm.
Further, after described dilatation, percolate lead layer is disposed with geotechnique filter screen sealing coat, percolate guide cobble, soil engineering composite drainage network from top to bottom.
Further, the thickness of described percolate guide cobble is not less than 300mm.
The landfill gas of the danger useless heap body that closes is collected by leakage preventing structure of the present utility model, it is ensured that the landfill area of dilatation will not be adversely affected by the danger useless heap body under closing impervious barrier; Meanwhile, double-deck HDPE(HighDensityPolyethylene, high density polyethylene (HDPE) are adopted) geomembrane anti-seepage structure, it is ensured that the danger of new landfill is useless will not be leaked, contaminated environment, and the percolate of its generation is collected.
Accompanying drawing explanation
Fig. 1 is the leakage preventing structure of dilatation after the useless security landfill field of this utility model danger closes;
Fig. 2 is the structural representation of landfill gas guide layer of the present utility model;
Fig. 3 is the structural representation of impervious barrier after dilatation of the present utility model;
Percolate lead layer structural representation after the dilatation that Fig. 4 provides for this utility model.
In figure, 1, landfill heap body after dilatation,
2, percolate lead layer after dilatation, 201, geotechnique's filter screen sealing coat, 202, percolate guide cobble, 203, soil engineering composite drainage network
3, dilatation impervious barrier, 301, filament nonwoven geotextiles, 302, main antiseepage HDPE geomembrane, 303, soil engineering composite drainage network, 304, secondary antiseepage HDPE geomembrane, 305, GCL auxiliary seepage proof layer,
4, dilatation protective layer,
5, closing impervious barrier,
6, landfill gas guide layer, 601, ground floor geotechnique's filter screen, 602, granule lead layer, 603, second layer geotechnique's filter screen,
7, body is piled in shaping.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail, so that those skilled in the art can be better understood from this utility model and can be practiced, but illustrated embodiment is not as to restriction of the present utility model.
As shown in Figures 1 to 4; this utility model is the leakage preventing structure of dilatation after a kind of useless security landfill field of endangering closes; described leakage preventing structure is arranged on the heap body 7 of shaping; described leakage preventing structure includes the dilatation percolate lead layer 2, dilatation impervious barrier 3, dilatation protective layer 4, closing impervious barrier 5 and the landfill gas guide layer 6 that set gradually from top to bottom; described landfill gas guide layer 6 is arranged on the top of the heap body 7 of shaping, and after described dilatation, the top of percolate lead layer 2 is landfill heap body 1 after dilatation.
Leakage preventing structure of the present utility model has the advantages such as reasonability, safety, feasibility, and waste burying can obtain Optimum utilization, and unit are amount of landfill is higher, and construction cost is relatively low.
Need that shaping is piled body 7 to deal with, it is ensured that shaping heap body 7 should dry, smooth, compacting, the grade of side slope of shaping heap body 7 is not more than 1:3, and landfill absolute altitude often promotes 5m and should arrange one and be not less than the wide platform of 2m.
Described landfill gas guide layer 6 is disposed with ground floor geotechnique's filter screen 601, granule lead layer 602, second layer geotechnique's filter screen 603 from top to bottom, or directly adopts soil engineering composite drainage network to construct in side slope.
In the present embodiment, the thickness of described granule lead layer 602 is more than 200mm, and described ground floor geotechnique's filter screen 601 and second layer geotechnique's filter screen 603 are 200g/m2Geotechnique's filter screen, described closing impervious barrier 5 adopts the LLDPE geomembrane that matte HDPE geomembrane that thickness is not less than 1.0mm or thickness are not less than 1.0mm to construct.
Described expansion protective layer 4 is the argillic horizon compacted lift that 0.3m to 0.5m is thick, should smooth, compacting, free from flaw, without loosening the soil, without hydrops and sharp object, and the requirement according to landfill gas guide layer arranges the longitudinal and transverse gradient.
Described dilatation impervious barrier 3 adopts double-deck HDPE geomembrane anti-seepage structure, is followed successively by from top to bottom: filament nonwoven geotextiles 301, main antiseepage HDPE geomembrane 302, soil engineering composite drainage network 303, secondary antiseepage HDPE geomembrane 304, GCL auxiliary seepage proof layer 305. Wherein, the thickness of main antiseepage HDPE geomembrane 302 is no less than 2mm, and the thickness of secondary antiseepage HDPE geomembrane 304 is no less than 1mm; And between two-layer anti-seepage geomembrane, adopt soil engineering composite drainage network 303 as centre leak detection layer, monitor the service condition of main antiseepage HDPE geomembrane.
In the present embodiment, dilatation percolate lead layer 2 is disposed with from top to bottom and is made up of geotechnique's filter screen sealing coat 201,300mm percolate guide cobble 202 or guide french drain, soil engineering composite drainage network 203, its collection being mainly used in percolate and discharge, its water permeable ability is no less than 0.1cm/s.
Leakage preventing structure of the present utility model is all adopt HDPE geomembrane as main impervious material, is because this structure and there is extremely low permeability, its infiltration coefficient��1.0 �� 10-13G cm/ (cm2 s Pa), is a kind of flexibility, nontoxic, environmentally protective waterproofer, and does not have any material to dissolve under normal temperature condition, and service life was up to 80��100 years. After described dilatation, landfill heap body 1 needs layered rolling, covers in time, and landfill grade of side slope should suddenly in 1:3.
The landfill gas of the danger useless heap body that closes is collected by leakage preventing structure of the present utility model, it is ensured that the landfill area of dilatation will not be adversely affected by the danger useless heap body under closing impervious barrier; Meanwhile, double-deck HDPE geomembrane anti-seepage structure is adopted, it is ensured that the danger of new landfill is useless will not be leaked, contaminated environment, and the percolate of its generation is collected.
And this utility model makes newly-built landfill yard need not carry out addressing again, decrease the waste of land resource, also alleviate that bring due to newly-built landfill yard with common people contradictions simultaneously.
Embodiment described above is only the preferred embodiment lifted for absolutely proving this utility model, and protection domain of the present utility model is not limited to this. Equivalent replacement that those skilled in the art make on this utility model basis or conversion, all within protection domain of the present utility model. Protection domain of the present utility model is as the criterion with claims.
Claims (10)
1. one kind close for useless security landfill field of endangering after the leakage preventing structure of dilatation; described leakage preventing structure is arranged on the heap body of shaping; it is characterized in that; described leakage preventing structure includes the dilatation percolate lead layer, dilatation impervious barrier, dilatation protective layer, closing impervious barrier and the landfill gas guide layer that set gradually from top to bottom; described landfill gas guide layer is arranged on the top of the heap body of shaping, and after described dilatation, percolate lead layer top is landfill heap body after dilatation.
2. according to claim 1 for the leakage preventing structure of dilatation after useless security landfill field closing of endangering, it is characterised in that described landfill gas guide layer is disposed with ground floor geotechnique's filter screen, granule lead layer, second layer geotechnique's filter screen from top to bottom.
3. according to claim 2 for the leakage preventing structure of dilatation after useless security landfill field closing of endangering, it is characterised in that the thickness of described granule lead layer is more than 200mm.
4. according to claim 1 for the leakage preventing structure of dilatation after useless security landfill field closing of endangering, it is characterised in that described closing impervious barrier is the HDPE geomembrane that thickness is not less than 1.0mm.
5. according to claim 1 for the leakage preventing structure of dilatation after useless security landfill field closing of endangering, it is characterised in that described closing impervious barrier is the LLDPE geomembrane that thickness is not less than 1.0mm.
6. according to claim 1 for the leakage preventing structure of dilatation after useless security landfill field closing of endangering, it is characterised in that described dilatation protective layer is the clay compacted lift that 0.3m to 0.5m is thick.
7. according to claim 1 for the leakage preventing structure of dilatation after useless security landfill field closing of endangering; it is characterized in that, described dilatation impervious barrier is disposed with filament nonwoven geotextiles protective layer, main antiseepage HDPE geomembrane, soil engineering composite drainage network, secondary antiseepage HDPE geomembrane, GCL auxiliary seepage proof layer from top to bottom.
8. according to claim 7 for the leakage preventing structure of dilatation after useless security landfill field closing of endangering, it is characterised in that the thickness of described main antiseepage HDPE geomembrane is not less than 2mm, and the thickness of secondary antiseepage HDPE geomembrane is not less than 1mm.
9. according to claim 1 for the leakage preventing structure of dilatation after useless security landfill field closing of endangering, it is characterised in that after described dilatation, percolate lead layer is disposed with geotechnique filter screen sealing coat, percolate guide cobble, soil engineering composite drainage network from top to bottom.
10. according to claim 9 for the leakage preventing structure of dilatation after useless security landfill field closing of endangering, it is characterised in that the thickness of described percolate guide cobble is not less than 300mm.
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| CN201520948606.8U CN205296241U (en) | 2015-11-25 | 2015-11-25 | A seepage prevention structure for endangering dilatation after useless security landfill field closes |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109848167A (en) * | 2019-03-04 | 2019-06-07 | 中国恩菲工程技术有限公司 | Hazardous waste rigidity landfill system and hazardous waste have bad luck system |
| CN110644585A (en) * | 2019-09-06 | 2020-01-03 | 中国一冶集团有限公司 | Construction method of leachate adjusting system |
| CN111151549A (en) * | 2020-01-21 | 2020-05-15 | 科领环保股份有限公司 | Hazardous waste flexible landfill, hazardous waste flexible landfill system and method for controlling hazardous waste landfill risk |
| CN112404089A (en) * | 2020-11-24 | 2021-02-26 | 毅康科技有限公司 | Safe landfill disposal and emergency system for hazardous waste |
| CN112974461A (en) * | 2019-12-17 | 2021-06-18 | 中国电建集团华东勘测设计研究院有限公司 | Retrievable dangerous waste rigid landfill system and operation method |
| CN116078778A (en) * | 2023-03-07 | 2023-05-09 | 重庆三峰科技有限公司 | Vertical partition structure of household garbage landfill site and construction method thereof |
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2015
- 2015-11-25 CN CN201520948606.8U patent/CN205296241U/en active Active
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109848167A (en) * | 2019-03-04 | 2019-06-07 | 中国恩菲工程技术有限公司 | Hazardous waste rigidity landfill system and hazardous waste have bad luck system |
| CN109848167B (en) * | 2019-03-04 | 2024-03-19 | 中国恩菲工程技术有限公司 | Hazardous waste rigid landfill system and hazardous waste transport system |
| CN110644585A (en) * | 2019-09-06 | 2020-01-03 | 中国一冶集团有限公司 | Construction method of leachate adjusting system |
| CN112974461A (en) * | 2019-12-17 | 2021-06-18 | 中国电建集团华东勘测设计研究院有限公司 | Retrievable dangerous waste rigid landfill system and operation method |
| CN111151549A (en) * | 2020-01-21 | 2020-05-15 | 科领环保股份有限公司 | Hazardous waste flexible landfill, hazardous waste flexible landfill system and method for controlling hazardous waste landfill risk |
| CN111151549B (en) * | 2020-01-21 | 2024-05-28 | 科领环保股份有限公司 | Hazardous waste flexible landfill site, hazardous waste flexible landfill system and method for controlling hazardous waste landfill risk |
| CN112404089A (en) * | 2020-11-24 | 2021-02-26 | 毅康科技有限公司 | Safe landfill disposal and emergency system for hazardous waste |
| CN112404089B (en) * | 2020-11-24 | 2023-10-03 | 毅康科技有限公司 | Safe landfill disposal and emergency system for hazardous waste |
| CN116078778A (en) * | 2023-03-07 | 2023-05-09 | 重庆三峰科技有限公司 | Vertical partition structure of household garbage landfill site and construction method thereof |
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