CN201588199U - Anti-seepage structure for waste landfill handling project - Google Patents
Anti-seepage structure for waste landfill handling project Download PDFInfo
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- CN201588199U CN201588199U CN2009202199438U CN200920219943U CN201588199U CN 201588199 U CN201588199 U CN 201588199U CN 2009202199438 U CN2009202199438 U CN 2009202199438U CN 200920219943 U CN200920219943 U CN 200920219943U CN 201588199 U CN201588199 U CN 201588199U
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- preventing structure
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Abstract
The utility model discloses an anti-seepage structure for a waste landfill handling project. The anti-seepage structure adopts the mode that the bottom and the slope are treated separately, a GCL (7) and a HDPE membrane (6), a clay barrier protection layer (5), a non-woven geotechnical fabric (4), a seepage diversion layer (3) and a composite geotechnical filter (2) are sequentially arranged on a tamped foundation (12) at the bottom; and a composite geotechnical drainage mesh (17), a GCL (16) and a HDPE member (15), a non-woven geotechnical fabric (14), and a seepage diversion layer (13) are sequentially arranged on a tamped foundation (18) of the slope. The anti-seepage structure solves the problem of poor anti-seepage effect and poor seepage treatment effect of the waste landfill, and can save the cost and make the best use of everything.
Description
Technical field
The utility model relates to a kind of leakage preventing structure, relates in particular to a kind of leakage preventing structure that engineering is disposed in refuse landfill that is used for.
Background technology
Along with rapid economic development, industrialization and quickening of urbanization process, the domestic waste generation sharply increases.At present, landfill is the final disposal mode of rubbish, even other processing modes such as burning or compost are adopted in the disposal of refuse in early stage, its last residue all will be dissolved by the mode of landfill.Land-fill method disposal of refuse meeting produces certain influence to environment, especially because the osmosis of Atmospheric precipitation and rubbish are piled the garbage leachate that esoteric biochemical reaction produces rubbish heap at landfill, it is a kind of organic sewage of high concentration, harm ability to environment is very big, in case serious harm will take place seepage.Along with the raising of people's environmental protection consciousness, the antiseepage of refuse landfill is required also more and more higher, present refuse landfill to antiseepage, to ooze the effect that drop liquid handles unsatisfactory.
The utility model content
The purpose of this utility model is to provide a kind of not only effectively antiseepage but also can be to oozing the leakage preventing structure that engineering is disposed in refuse landfill that is used for that drop liquid handles.
To achieve these goals, the technical solution adopted in the utility model is as follows:
A kind of leakage preventing structure that is used for refuse landfill disposal engineering of the utility model, form by following two parts: bottom leakage preventing structure and slope seepage control structure:
Described bottom leakage preventing structure is followed successively by from bottom to top: compacting foundation, GCL, HDPE film, clay isolated protective layer, non-woven geotextile, ooze drop liquid water conservancy diversion layer, composite earthwork filter screen;
Described slope seepage control structure is followed successively by from bottom to top: compacting foundation, soil engineering composite drainage network, GCL, HDPE film, non-woven geotextile, ooze drop liquid water conservancy diversion layer.
In the leakage preventing structure of described bottom, the specification of the degree of compaction of described compacting foundation 〉=93%, described GCL is 4800g/m
2, described HDPE film is that the thickness of 2.0mm light facial mask, described clay isolated protective layer is the thick clay of 0.3m, the specification of degree of compaction 〉=93%, described non-woven geotextile is 600g/m
2, the described drop liquid water conservancy diversion layer that oozes is for thickness is the cobble of 30cm, contains the leachate collecting pipe, the specification of described composite earthwork filter screen is 400g/m
2
Between described compacting foundation and GCL, also be provided with underground water guide system in the leakage preventing structure of described bottom; concrete; described underground water guide system is followed successively by composite earthwork filter screen, 300mm underground water cobble water conservancy diversion layer, composite earthwork filter screen, clay antiseepage topping from bottom to top, and the specification of described composite earthwork filter screen is 400g/m
2, the thickness of described clay antiseepage topping is 0.5m, degree of compaction 〉=93%.
In the described slope seepage control structure, the thickness of the degree of compaction of described compacting foundation 〉=93%, described soil engineering composite drainage network is that the specification of 6.3mm, described GCL is 4800g/m
2, described HDPE film is that the specification of 2.0mm light facial mask, described non-woven geotextile is 600g/m
2, the described drop liquid water conservancy diversion layer that oozes is the thick cobble of 30cm.
The beneficial effects of the utility model are as follows:
The utility model is used for refuse landfill to be disposed the leakage preventing structure of engineering and adopts different structure and material for different position, garbage disposal plant, promptly accomplished to make the best use of everything, and effectively leakproof again, and ooze drop liquid and effectively handle.
Description of drawings
Fig. 1 is used for the polycrystalline substance schematic diagram that the leakage preventing structure of engineering is disposed in refuse landfill for the utility model;
Fig. 2 is used for the edge slope structure schematic diagram that the leakage preventing structure of engineering is disposed in refuse landfill for the utility model.
The specific embodiment
The utility model selects for use HDPE film and natural sodium bentonite (GCL) composite liner to come leakproof, considers that mainly this composite bed has following advantage:
GCL sodium bentonite pad is to be combined by two-layer geotechnological cloth clamp one deck sodium bentonite up and down.It is layed in the bottom of the reservior, can forms the good continuous flexible barrier layers of a kind of barrier performance, play the effect that drop liquid exosmoses of oozing that stops.GCL has following characteristics: swell soil expands after meeting water immediately, forms the fluid-tight jelly of one deck at last, and transmission coefficient is low; Construction is simple; Energy self-regeneration small holes, sealing filling chink; Protect the HDPE geomembrane effectively; Be suitable for clay shortage area or foundation condition than complicated situation.
Be close to GCL under the HDPE geomembrane, because the drop liquid that oozes at HDPE geomembrane damage place is a diffusion rather than face diffusion, and the GCL barrier performance under the film is good, not only can further stop to ooze the following of drop liquid and ooze, and have automatic expansion to make the characteristics of filling chink up because swell soil is met water, therefore the effect of reparation is arranged for the breakage of being close to the HDPE geomembrane on it, therefore, this scheme good seepage-proof property, it is also more convenient to construct, short construction period, cost are also more moderate.In addition, the GCL thinner thickness generally at 6～10mm, takies landfill storage capacity seldom.
In the selection of main impervious material HDPE film, mainly do following consideration: to various organic barrier performance test shows, along with the increase of HDPE film thickness, the Pollutants Diffusion ability begins rapid decline by the HDPE film, and downward trend subsequently tends towards stability.When the thickness of HDPE film is 1.0mm, be in rapid decrement phase, penetrating power is relatively large; When the thickness of HDPE film was 2.0mm, the penetrating power of multiple pollutant had been in mild decrement phase basically, and the thickness that increases film again is little to the penetrating power influence; When the HDPE film thickness was 1.5mm, the part material had been in mild decrement phase, but also had the part material still to be in rapid decrement phase, and what have still is in marginal transition stage.Therefore, to select specification for use be the thick HDPE film of 2.0mm to the utility model.
Concrete; referring to accompanying drawing 1; the utility model bottom leakage preventing structure is followed successively by from bottom to top: GCL layer 7; HDPE film 6; clay isolated protective layer 5; non-woven geotextile 4; ooze drop liquid water conservancy diversion layer 3; composite earthwork filter screen 2; according to the actual geological conditions of engineering; GCL layer 7 can be set directly on the compacting foundation 12; also can be under GCL layer 7; underground water guide system is set on the compacting foundation 12; described underground water guide system is followed successively by composite earthwork filter screen 11 from bottom to top; 300mm underground water cobble water conservancy diversion layer 10; composite earthwork filter screen 9; clay antiseepage topping 8, the specification of composite earthwork filter screen 11 and composite earthwork filter screen 9 is 400g/m
2, the thickness of clay antiseepage topping 8 is 0.5m, degree of compaction 〉=93%.Rubbish 1 is deposited on the composite earthwork filter screen 2.
Referring to accompanying drawing 2, slope seepage control structure of the present utility model is followed successively by from bottom to top: compacting foundation 18, soil engineering composite drainage network 17, GCL layer 16, HDPE film 15, non-woven geotextile 14, ooze drop liquid water conservancy diversion layer 13, rubbish 1 is deposited in and oozes on the drop liquid water conservancy diversion layer 13.
Claims (5)
1. one kind is used for the leakage preventing structure that engineering is disposed in refuse landfill, it is characterized in that: be made up of following two parts: bottom leakage preventing structure and slope seepage control structure:
Described bottom leakage preventing structure is followed successively by from bottom to top: compacting foundation (12), GCL (7), HDPE film (6), clay isolated protective layer (5), non-woven geotextile (4), ooze drop liquid water conservancy diversion layer (3), composite earthwork filter screen (2);
Described slope seepage control structure is followed successively by from bottom to top: compacting foundation (18), soil engineering composite drainage network (17), GCL (16), HDPE film (15), non-woven geotextile (14), ooze drop liquid water conservancy diversion layer (13).
2. claim 1 is described is used for the leakage preventing structure that engineering is disposed in refuse landfill, and it is characterized in that: in the leakage preventing structure of described bottom, the specification of degree of compaction 〉=93% of described compacting foundation (12), described GCL (7) is 4800g/m
2, described HDPE film (6) is that the thickness of 2.0mm light facial mask, described clay isolated protective layer (5) is the thick clay of 0.3m, the specification of degree of compaction 〉=93%, described non-woven geotextile (4) is 600g/m
2, the described drop liquid water conservancy diversion layer (3) that oozes is for thickness is the cobble of 30cm, the specification that contains leachate collecting pipe, described composite earthwork filter screen (2) is 400g/m
2
3. claim 1 or the 2 described leakage preventing structures that are used for refuse landfill disposal engineering is characterized in that: also be provided with underground water guide system in the leakage preventing structure of described bottom between described compacting foundation (12) and GCL (7).
4. claim 3 is described is used for the leakage preventing structure that engineering is disposed in refuse landfill; it is characterized in that: described underground water guide system is followed successively by composite earthwork filter screen (11), 300mm underground water cobble water conservancy diversion layer (10), composite earthwork filter screen (9), clay antiseepage topping (8) from bottom to top, and the specification of described composite earthwork filter screen (11) and composite earthwork filter screen (9) is 400g/m
2, the thickness of described clay antiseepage topping (8) is 0.5m, degree of compaction 〉=93%.
5. claim 1 is described is used for the leakage preventing structure that engineering is disposed in refuse landfill, it is characterized in that: in the described slope seepage control structure, the thickness of degree of compaction 〉=93% of described compacting foundation (18), described soil engineering composite drainage network (17) is that the specification of 6.3mm, described GCL (16) is 4800g/m
2, described HDPE film (15) is that the specification of 2.0mm light facial mask, described non-woven geotextile (14) is 600g/m
2, the described drop liquid water conservancy diversion layer (13) that oozes is the thick cobble of 30cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202199438U CN201588199U (en) | 2009-10-22 | 2009-10-22 | Anti-seepage structure for waste landfill handling project |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202199438U CN201588199U (en) | 2009-10-22 | 2009-10-22 | Anti-seepage structure for waste landfill handling project |
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| CN201588199U true CN201588199U (en) | 2010-09-22 |
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| CN2009202199438U Expired - Lifetime CN201588199U (en) | 2009-10-22 | 2009-10-22 | Anti-seepage structure for waste landfill handling project |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102002961A (en) * | 2010-10-19 | 2011-04-06 | 浙江大学 | Impermeable gasket for bottom side slope of refuse landfill |
| CN102817379A (en) * | 2012-08-31 | 2012-12-12 | 中国市政工程西北设计研究院有限公司 | Upper protective layer structure of impervious barrier structure of municipal solid waste landfill |
| CN103485555A (en) * | 2013-09-27 | 2014-01-01 | 湖南景翌湘台环保高新技术开发有限公司 | Construction method of indoor-type rain-proof and anti-seepage solid waste landfill |
| CN105758590A (en) * | 2016-03-25 | 2016-07-13 | 神华集团有限责任公司 | Seepage monitoring system and method |
| CN107620325A (en) * | 2017-10-17 | 2018-01-23 | 中国科学院武汉岩土力学研究所 | A kind of composite anti-penetrating system for landfill yard high gradient slope |
| CN108396785A (en) * | 2018-05-15 | 2018-08-14 | 北京环境工程技术有限公司 | A kind of pollution barrier structure and method based on seepage control system structure |
| CN109047267A (en) * | 2018-09-27 | 2018-12-21 | 苏州金螳螂园林绿化景观有限公司 | Degeneration system is polluted in refuse landfill |
| CN112523264A (en) * | 2020-11-13 | 2021-03-19 | 广东省建筑设计研究院有限公司 | High and steep slope seepage prevention system and laying method thereof |
| CN112962680A (en) * | 2021-02-08 | 2021-06-15 | 河海大学 | Novel refuse landfill system |
| CN113152531A (en) * | 2021-05-12 | 2021-07-23 | 贵州万通环保工程有限公司 | Side slope seepage-proofing structure of refuse landfill |
-
2009
- 2009-10-22 CN CN2009202199438U patent/CN201588199U/en not_active Expired - Lifetime
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102002961A (en) * | 2010-10-19 | 2011-04-06 | 浙江大学 | Impermeable gasket for bottom side slope of refuse landfill |
| CN102817379A (en) * | 2012-08-31 | 2012-12-12 | 中国市政工程西北设计研究院有限公司 | Upper protective layer structure of impervious barrier structure of municipal solid waste landfill |
| CN103485555A (en) * | 2013-09-27 | 2014-01-01 | 湖南景翌湘台环保高新技术开发有限公司 | Construction method of indoor-type rain-proof and anti-seepage solid waste landfill |
| CN103485555B (en) * | 2013-09-27 | 2016-01-20 | 湖南景翌湘台环保高新技术开发有限公司 | A kind of construction method of indoor type solid waste landfill site of rainproof, antiseepage |
| CN105758590A (en) * | 2016-03-25 | 2016-07-13 | 神华集团有限责任公司 | Seepage monitoring system and method |
| CN107620325A (en) * | 2017-10-17 | 2018-01-23 | 中国科学院武汉岩土力学研究所 | A kind of composite anti-penetrating system for landfill yard high gradient slope |
| CN108396785A (en) * | 2018-05-15 | 2018-08-14 | 北京环境工程技术有限公司 | A kind of pollution barrier structure and method based on seepage control system structure |
| CN109047267A (en) * | 2018-09-27 | 2018-12-21 | 苏州金螳螂园林绿化景观有限公司 | Degeneration system is polluted in refuse landfill |
| CN112523264A (en) * | 2020-11-13 | 2021-03-19 | 广东省建筑设计研究院有限公司 | High and steep slope seepage prevention system and laying method thereof |
| CN112962680A (en) * | 2021-02-08 | 2021-06-15 | 河海大学 | Novel refuse landfill system |
| CN113152531A (en) * | 2021-05-12 | 2021-07-23 | 贵州万通环保工程有限公司 | Side slope seepage-proofing structure of refuse landfill |
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Legal Events
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
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| CX01 | Expiry of patent term |
Granted publication date: 20100922 |