CN102383490B - Ground leakage type water tight guiding and removing structure of refuse landfill and construction method thereof - Google Patents
Ground leakage type water tight guiding and removing structure of refuse landfill and construction method thereof Download PDFInfo
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- CN102383490B CN102383490B CN 201110243733 CN201110243733A CN102383490B CN 102383490 B CN102383490 B CN 102383490B CN 201110243733 CN201110243733 CN 201110243733 CN 201110243733 A CN201110243733 A CN 201110243733A CN 102383490 B CN102383490 B CN 102383490B
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Abstract
The invention relates to a ground leakage type water tight guiding and removing structure of a refuse landfill and a construction method thereof, which ensure whole integrity and water tight effectiveness of the ground leakage type water tight guiding bar structure of the refuse landfill. The technical scheme includes that the ground leakage type water tight guiding and removing structure of the refuse landfill is provided with a basin waste land filling area formed by building a waste dam. Water tight layers are paved at the bottom and surfaces of side slopes of the filling area. A leachate guiding and removing layer and filtration geotextile are sequentially paved at the position above the water tight layer from bottom to top. The ground leakage type water tight guiding and removing structure of the refuse landfill and the construction method of the guiding and removing structure are characterized in that a short plastic pipe communicated with the percolate guiding and removing layer is vertically distributed at the bottom of the waste land filling area. A flange is arranged at the upper end of the short plastic pipe which is connected with the water tight layer paved at the bottom of the filling area in welding mode. The lower end of the short plastic pipe is connected with a dam penetrating straight pipe penetrating through the bottom of the waste dam through a 90-degree elbow. The ground leakage type water tight guiding and removing structure of the refuse landfill and the construction method of the guiding and removing structure are applicable to waste land filling projects of city life.
Description
Technical field
The present invention relates to a kind of floor drain type seepage-proofing drainage-guiding structure of refuse landfill and job practices thereof, mainly be applicable in the city life garbage landfill engineering.
Background technology
Valley type landfill is generally built waste dam 1 ' in the entrance, mountain valley, form the garbage loading embeading reservoir area of basin shape, bottom, reservoir area and mountain valley side slope are laid impervious barrier 2 ', impervious barrier 2 ' top arranges oozes drop liquid lead layer, for what collect that the garbage loading embeading process produces because rainfall infiltration and rubbish self decompose, oozes drop liquid.Ooze drop liquid and import the sewage disposal system processing by guide pipeline 7 ', guide pipeline 7 ' is in the guide process, need to pass through the rubbish dam body, traditional method adopts directly wears dam technique, be that guide pipeline 7 ' directly passes through the rubbish dam body according to the reservoir area gradient with the straight tube form, pipeline and the antiseepage film repair welding of dam body surface anti-seepage layer intersection.The earth and stone material that Valley Type Landfill Site Waste Dam generally adopts reservoir area to be excavated is as dam material, and because construction rolling technology and posterior settlement, landfill operation such as roll at the reason, differential settlement very easily occurs in waste dam under various effect of stress, cause wearing place, dam antiseepage film by drawing crack, periosteum separates, ooze drop liquid generation seepage, destroyed the whole anti-seepage effect of landfill yard, and be difficult to repair.
Summary of the invention
The technical problem to be solved in the present invention is: directly wear for current waste landfill site leachate discharge guiding pipe the pipeline external force resistance brought on dam poor and cause the problem that damaged possibility is large, a kind of floor drain type seepage-proofing drainage-guiding structure of refuse landfill and job practices thereof of simple in structure, easy construction are provided, effectively avoid the seepage caused because of differential settlement, to guarantee overall integrity and the antiseepage validity of refuse landfill antiseepage guide structure.
The technical solution adopted in the present invention is: floor drain type seepage-proofing drainage-guiding structure of refuse landfill, there is the basin shape garbage loading embeading reservoir area formed by building waste dam, impervious barrier is laid on this bottom, reservoir area and side slope surface, the impervious barrier top is laid and is oozed drop liquid lead layer and anti-filter geotextiles successively from bottom to top, it is characterized in that: described garbage loading embeading reservoir area bottom is vertical to be arranged and the plastic tubulature that oozes drop liquid lead layer and be communicated with, this plastic tubulature upper end flanged and with the impervious barrier welding that is layed in reservoir area bottom, lower end connects from what pass at the bottom of the waste dam dam and wears the dam straight tube by 90 degree elbows.
Bottom below, described garbage loading embeading reservoir area, around part on plastic tubulature, pour into a mould a ring shape concrete foundation, this concrete foundation upper surface is fixedly connected with impervious barrier by one group of bolt be arranged symmetrically with.
Described bolt comprises that an end is anchored in the expansion bolt in concrete foundation, this expansion bolt other end extends concrete foundation upper surface top, thereby and realizes the fixing of impervious barrier through liner I, impervious barrier, liner II, the flat flat steel bar of stainless steel and stainless steel gasket rear thread attaching nut successively.
The thickness of described concrete foundation is more than or equal to 100mm.
Described bolt is more than or equal to 100mm to the distance of concrete foundation external cylindrical surface.
Described plastic tubulature water inlet is embedded with the sluicing double-edged fine-toothed comb.
Described elbow outsourcing is supported and is used the concrete buttress.
Describedly wear dam straight tube outsourcing protection and wrap with concrete side.
Described impervious barrier is the HDPE antiseepage film.
The job practices of floor drain type seepage-proofing drainage-guiding structure of refuse landfill is characterized in that step is as follows:
Lay on a, the base surface after planning to build the excavation of waste dam and wear the dam straight tube, and make this wear dam straight tube one end to extend and plan to build the waste dam outside, the other end extends plans to build below, refuse landfill bottom of the reservior, and then wearing the dam straight tube outside, wrap pour concrete side;
B, build waste dam, form the refuse landfill of basin shape;
Arrange 90 degree elbows in c, the foundation soil below the refuse landfill bottom of the reservior, and build to support outside this elbow and use the concrete buttress, then the flanged (FLGD) plastic tubulature of vertical layout, make its upper end extend the refuse landfill bottom of the reservior, lower end by elbow with wear the dam straight tube and be communicated with;
In d, the foundation soil below the refuse landfill bottom of the reservior, around part on plastic tubulature, pour into a mould a ring shape concrete foundation, and arrange that one group of bolt is fixedly connected with the bottom of the reservior impervious barrier with concrete foundation;
E, by plastic tubulature upper end and the impervious barrier welding that is layed in reservoir area bottom, and in the water inlet of plastic tubulature, the sluicing double-edged fine-toothed comb is installed;
Drop liquid lead layer is oozed in f, bottom of the reservior backfill, and lays the anti-filter geotextiles on surface.
The invention has the beneficial effects as follows: the present invention is designed to floor drain type by the guide structure, i.e. vertical the layout and the flanged plastic tubulature that oozes drop liquid lead layer and be communicated with in garbage loading embeading reservoir area bottom, and this plastic tubulature upper end is flanged and with the impervious barrier welding that is layed in reservoir area bottom, lower end connects from what pass at the bottom of the waste dam dam and wears the dam straight tube by 90 degree elbows; The weld of plastic tubulature and impervious barrier is not subject to the impact of waste dam differential settlement, thereby what solved that in the prior art, the waste dam differential settlement brings wears straight tube place, dam impervious barrier by drawing crack, cause periosteum to separate, the problem that the reservoir area seepage control system is destroyed, guaranteed overall integrity and the antiseepage validity of refuse landfill antiseepage guide structure.
The accompanying drawing explanation
Fig. 1 is the structure chart of background technology of the present invention.
Fig. 2 is structure chart of the present invention.
Fig. 3 is that in Fig. 2, bolt connects drawing.
The specific embodiment
As shown in Figure 2, the present embodiment be take valley type landfill as example, it forms basin shape garbage loading embeading reservoir area by build waste dam 1 in the entrance, mountain valley, this bottom, reservoir area and side slope surface are laid impervious barrier 2(and are adopted the HDPE antiseepage film to make), impervious barrier 2 tops are laid and are oozed drop liquid lead layer 3 and anti-filter geotextiles 4 successively from bottom to top, described garbage loading embeading reservoir area bottom is vertical to be arranged and the plastic tubulature 5 that oozes drop liquid lead layer 3 and be communicated with, this plastic tubulature upper end flanged and with impervious barrier 2 welding that are layed in reservoir area bottom, lower end connects and wears dam straight tube 7 by 90 degree elbows 6, this is worn the dam straight tube other end and extends outside waste dam 1, and be connected with outside sewage disposal system, quantity and the elevation of wearing dam straight tube 7 can arrange flexibly according to the landfill yard actual conditions, and not being subject to reservoir area to ooze drop liquid guide system elevation affects, and wear dam straight tube 7 in this example and pass at the bottom of waste dam 1 dam, the whole floor drain type guide structure that forms.
Bottom below, described garbage loading embeading reservoir area, around part on plastic tubulature 5, pour into a mould a ring shape concrete foundation 8, this concrete foundation upper surface is fixedly connected with impervious barrier 2 by one group of bolt be arranged symmetrically with 9; In this example, the thickness of concrete foundation 8 is more than or equal to 100mm, and generally is no more than 300mm, and bolt 9 is more than or equal to 100mm to the distance of concrete foundation 8 external cylindrical surfaces, and generally is no more than 300mm, to guarantee whole stable degree.
As shown in Figure 3, described bolt 9 comprises that an end is anchored in the expansion bolt 9-1 in concrete foundation 8, this expansion bolt other end extends concrete foundation 8 upper surface tops, and successively through being threaded with nut 9-6 after liner I 9-2, impervious barrier 2, liner II 9-3, the flat flat steel bar 9-4 of stainless steel and stainless steel gasket 9-5, thereby bottom of the reservior impervious barrier 2 is fixedly connected with concrete foundation 8, can as required impervious barrier 2 be welded and fixed with liner I 9-2, liner II 9-3, the flat flat steel bar 9-4 of stainless steel after installation.
Described plastic tubulature 5 water inlets (with the impervious barrier welding ends) are embedded with sluicing double-edged fine-toothed comb 10, for preventing foreign material, with current, enter guide pipeline (comprise plastic tubulature, elbow and wear the dam straight tube), avoid blocking channel.
For guaranteeing guide pipeline resistance to overturning, described elbow 6 Outsourcing Concrete buttresses 11, provide certain supporting role; Wear dam straight tube 7 for protection simultaneously, at its external surface, be cast with concrete side's bag 12, reduction causes wearing because of differential settlement the possibility that dam straight tube 7 deforms and ruptures.
The construction sequence of the present embodiment is as follows:
(the front needs of build waste dam 1 first will be shown soil and excavate for a, the base surface after the excavation of planning to build waste dam 1, this base surface is that table soil has excavated the base surface of rear formation) above lay and wear dam straight tube 7, and make this wear dam straight tube one end to extend and plan to build waste dam 1 outside and be connected with outside sewage disposal system, the other end extends plans to build below, refuse landfill bottom of the reservior, then wearing the outer pour concrete side of dam straight tube 7 bag 12, the safety of wearing dam straight tube 7 with protection;
B, build waste dam 1 in the entrance in mountain valley, form the refuse landfill of basin shape;
Arrange 90 degree elbows 6 in c, the foundation soil below the refuse landfill bottom of the reservior, and build concrete buttress 11 outside this elbow, play the effect of supporting and protecting elbow 6; Then vertically arrange flanged (FLGD) plastic tubulature 5, make its upper end extend the refuse landfill bottom of the reservior, lower end by elbow 6 with wear dam straight tube 7 and be communicated with;
In d, the foundation soil below the refuse landfill bottom of the reservior, around part on plastic tubulature 5, pour into a mould a ring shape concrete foundation 8, and arrange that one group of bolt 9 is fixedly connected with bottom of the reservior impervious barrier 2 with concrete foundation 8;
E, by plastic tubulature 5 upper ends (flanged end) and impervious barrier 2 welding that are layed in reservoir area bottom, and in the water inlet of plastic tubulature 5, sluicing double-edged fine-toothed comb 10 is installed, in case foreign material enter the guide pipeline with current, cause obstruction;
Drop liquid lead layer 3 is oozed in f, bottom of the reservior backfill, and gets final product in surface laying anti-filter geotextiles 4.
While pouring into a mould above-mentioned concrete foundation 8 and concrete buttress 11, foundation soil first must be excavated to projected depth, to be cast complete and solidify after backfill is closely knit again gets final product.
Claims (10)
1. a floor drain type seepage-proofing drainage-guiding structure of refuse landfill, there is the basin shape garbage loading embeading reservoir area formed by building waste dam (1), impervious barrier (2) is laid on this bottom, reservoir area and side slope surface, impervious barrier (2) top is laid and is oozed drop liquid lead layer (3) and anti-filter geotextiles (4) successively from bottom to top, it is characterized in that: described garbage loading embeading reservoir area bottom is vertical to be arranged and the plastic tubulature (5) that oozes drop liquid lead layer (3) and be communicated with, this plastic tubulature upper end flanged and with impervious barrier (2) welding that is layed in reservoir area bottom, lower end connects from what pass at the bottom of waste dam (1) dam and wears dam straight tube (7) by 90 degree elbows (6).
2. floor drain type seepage-proofing drainage-guiding structure of refuse landfill according to claim 1, it is characterized in that: bottom below, described garbage loading embeading reservoir area, around the upper part of plastic tubulature (5), pour into a mould a ring shape concrete foundation (8), this concrete foundation upper surface is fixedly connected with impervious barrier (2) by one group of bolt be arranged symmetrically with (9).
3. floor drain type seepage-proofing drainage-guiding structure of refuse landfill according to claim 2, it is characterized in that: described bolt (9) comprises that an end is anchored in the expansion bolt (9-1) in annular concrete basis (8), this expansion bolt other end extends annular concrete basis (8) upper surface top, and successively through liner I (9-2), impervious barrier (2), liner II (9-3), the flat flat steel bar of stainless steel (9-4) and stainless steel gasket (9-5) rear thread attaching nut (9-6) thus realize fixing of impervious barrier (2).
4. according to the described floor drain type seepage-proofing drainage-guiding structure of refuse landfill of claim 2 or 3, it is characterized in that: the thickness on described annular concrete basis (8) is more than or equal to 100mm.
5. according to the described floor drain type seepage-proofing drainage-guiding structure of refuse landfill of claim 2 or 3, it is characterized in that: described bolt (9) is more than or equal to 100mm to the distance of annular concrete basis (8) external cylindrical surface.
6. floor drain type seepage-proofing drainage-guiding structure of refuse landfill according to claim 1, it is characterized in that: described plastic tubulature (5) water inlet is embedded with sluicing double-edged fine-toothed comb (10).
7. floor drain type seepage-proofing drainage-guiding structure of refuse landfill according to claim 1, is characterized in that: described 90 degree elbow (6) outsourcings concrete buttress (11) for support.
8. floor drain type seepage-proofing drainage-guiding structure of refuse landfill according to claim 1 is characterized in that: described dam straight tube (7) the outsourcing concrete side's bag (12) for protection of wearing.
9. floor drain type seepage-proofing drainage-guiding structure of refuse landfill according to claim 1 is characterized in that: described impervious barrier (2) is the HDPE antiseepage film.
10. the job practices of a floor drain type seepage-proofing drainage-guiding structure of refuse landfill is characterized in that step is as follows:
Lay and wear dam straight tube (7) on a, the base surface after the excavation of planning to build waste dam (1), and make this wear dam straight tube one end to extend and plan to build waste dam (1) outside, the other end extends plans to build below, refuse landfill bottom of the reservior, then pour concrete side's bag (12) outside wearing dam straight tube (7);
B, build waste dam (1), form the refuse landfill of basin shape;
Arrange 90 degree elbows (6) in c, the foundation soil below the refuse landfill bottom of the reservior, and build outside this elbow and support with concrete buttress (11), then vertically arrange flanged (FLGD) plastic tubulature (5), make its upper end extend the refuse landfill bottom of the reservior, lower end by 90 degree elbows (6) with wear dam straight tube (7) and be communicated with;
In d, the foundation soil below the refuse landfill bottom of the reservior, around the upper part of plastic tubulature (5), pour into a mould a ring shape concrete foundation (8), and arrange that one group of bolt (9) is fixedly connected with bottom of the reservior impervious barrier (2) with annular concrete basic (8);
E, by plastic tubulature (5) upper end and impervious barrier (2) welding that is layed in reservoir area bottom, and in the water inlet of plastic tubulature (5), sluicing double-edged fine-toothed comb (10) is installed;
Drop liquid lead layer (3) is oozed in f, bottom of the reservior backfill, and lays anti-filter geotextiles (4) on surface.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201110243733 CN102383490B (en) | 2011-08-24 | 2011-08-24 | Ground leakage type water tight guiding and removing structure of refuse landfill and construction method thereof |
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| CN 201110243733 CN102383490B (en) | 2011-08-24 | 2011-08-24 | Ground leakage type water tight guiding and removing structure of refuse landfill and construction method thereof |
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| CN102383490B true CN102383490B (en) | 2013-12-18 |
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| CN103758199B (en) * | 2014-01-13 | 2015-11-04 | 上海老港废弃物处置有限公司 | A kind of dirty shunt method of rain of rubbish first floor landfill |
| CN103726515B (en) * | 2014-01-23 | 2015-09-09 | 北京锄禾环保技术有限公司 | Ground basal plane liquid reservoirs HDPE film leakage preventing structure |
| CN105536315B (en) * | 2015-12-01 | 2017-07-28 | 中国航空规划设计研究总院有限公司 | Separation of solid and liquid structure and its method under a kind of corrosive atmosphere |
| CN105908786A (en) * | 2016-05-17 | 2016-08-31 | 上海胜创环保科技有限责任公司 | Polyethylene pipe and application of polyethylene pipe in impervious structure |
| CN108086365B (en) * | 2017-12-19 | 2019-02-15 | 浙江科技学院 | Self-repairing refuse landfill impervious layer and self-repairing impervious method thereof |
| CN109322369B (en) * | 2018-11-21 | 2024-02-02 | 天津建昌环保股份有限公司 | Bolt type landfill leachate pipe dam penetrating structure |
| CN111894097A (en) * | 2020-07-17 | 2020-11-06 | 上海市政工程设计研究总院（集团）有限公司 | Overhead type rigid landfill leachate collecting-drainage guide device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2518940Y (en) * | 2002-01-20 | 2002-10-30 | 邹右军 | Leak-proof water drain jacket |
| CN101256182B (en) * | 2008-04-11 | 2011-11-09 | 华中农业大学 | Method for preparing macrotype undisturbed soil pole and uses thereof |
| KR20100012273A (en) * | 2008-07-28 | 2010-02-08 | 주식회사 건화 | Leachate draining structure of landfill which uses the waste tire chip |
| CN201411204Y (en) * | 2009-06-18 | 2010-02-24 | 成都市武侯专利咨询研发转化研究所 | Anti-seepage dump |
| CN201695506U (en) * | 2010-06-02 | 2011-01-05 | 中国市政工程西北设计研究院有限公司 | Connecting device for penetrating through leachate guiding and discharging pipeline and impervious membrane of refuse dam |
| CN201713790U (en) * | 2010-06-11 | 2011-01-19 | 长沙有色冶金设计研究院 | Structure preventing muddy water from leaking out of primary dam of tailing reservoir of mine |
| CN102061741A (en) * | 2010-11-22 | 2011-05-18 | 天津泰达环保有限公司 | Reinforced drainage guide device and method for percolate in waste pool in incineration plant |
| CN201891134U (en) * | 2010-11-25 | 2011-07-06 | 华忠(青岛)环境科技有限公司 | Geomembrane |
| CN102094451B (en) * | 2011-01-12 | 2012-05-30 | 浙江大学 | Backwashing channel structure for percolate guide and drainage system of refuse landfill |
| CN202227453U (en) * | 2011-08-24 | 2012-05-23 | 中国水电顾问集团华东勘测设计研究院 | Floor drain type seepage-proofing drainage-guiding structure of refuse landfill |
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