CN102383490A - 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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- CN102383490A CN102383490A CN2011102437334A CN201110243733A CN102383490A CN 102383490 A CN102383490 A CN 102383490A CN 2011102437334 A CN2011102437334 A CN 2011102437334A CN 201110243733 A CN201110243733 A CN 201110243733A CN 102383490 A CN102383490 A CN 102383490A
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- refuse landfill
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- impervious barrier
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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 refuse landfill floor drain formula antiseepage guide structure 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 is provided with oozes drop liquid lead layer, be used for collecting the garbage loading embeading process since rainfall infiltration and rubbish self decompose produce ooze drop liquid.Ooze drop liquid and import the sewage disposal system processing through guide pipeline 7 '; Guide pipeline 7 ' is in the guide process; Need pass through the rubbish dam body; Traditional method adopts and directly wears dam technology, and promptly guide pipeline 7 ' directly passes through the rubbish dam body according to the reservoir area gradient with the straight tube form, and the antiseepage film repair welding is used in pipeline and dam body surface anti-seepage layer intersection.Mountain valley-type landfill yard waste dam generally adopts earth and stone material that the reservoir area excavates out as dam material; And owing to constructing reasons such as rolling technique and posterior settlement, landfill operation roll, differential settlement very easily takes place in waste dam under various stress effects, 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 that the present invention will solve is: directly wear the pipeline external force resistance difference of bringing on the dam and cause the big problem of damaged possibility to present waste landfill site leachate discharge guiding pipe; A kind of refuse landfill floor drain formula antiseepage guide structure and job practices thereof of simple in structure, easy construction are provided; Effectively avoid the seepage that causes because of differential settlement, to guarantee the overall integrity and the antiseepage validity of refuse landfill antiseepage guide structure.
The technical scheme that the present invention adopted is: refuse landfill floor drain formula antiseepage guide structure; Have through building the basin shape garbage loading embeading reservoir area that waste dam forms; Impervious barrier is laid on this bottom, reservoir area and side slope surface; The impervious barrier top is laid successively from bottom to top and is oozed drop liquid lead layer and anti-filter geotextiles; It is characterized in that: said garbage loading embeading reservoir area bottom is vertical to be arranged and oozes the plastic tubulature that drop liquid lead layer is communicated with, this plastic tubulature upper end flanged and with the impervious barrier welding that is layed in the bottom, reservoir area, the lower end through 90 spend that the elbows connection passes at the bottom of the waste dam dam wear the dam straight tube.
Cast one circle annular concrete basis below the bottom, said garbage loading embeading reservoir area, around plastic tubulature top, the bolt that this concrete foundation upper surface passes through one group of symmetric arrangement is fixedly connected with impervious barrier.
Said bolt comprises that an end is anchored in the expansion bolt in the concrete foundation; This expansion bolt other end extends concrete foundation upper surface top, thereby and passes liner I, impervious barrier, liner II, the flat flat steel bar of stainless steel and stainless steel gasket rear thread attaching nut successively and realize the fixing of impervious barrier.
The thickness of said concrete foundation is more than or equal to 100mm.
Said bolt arrives the distance of concrete foundation external cylindrical surface more than or equal to 100mm.
Said plastic tubulature water inlet is embedded with the sluicing double-edged fine-toothed comb.
Said elbow outsourcing is supported and is used the concrete buttress.
Saidly wear dam straight tube outsourcing protection and wrap with concrete side.
Said impervious barrier is the HDPE antiseepage film.
The job practices of refuse landfill floor drain formula antiseepage guide structure is characterized in that step is following:
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 wrap pour concrete side wearing the dam straight tube outside then;
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 outside this elbow, build to support and use the concrete buttress, vertically then arrange flanged (FLGD) plastic tubulature, extend the refuse landfill bottom of the reservior on making it, the lower end through elbow with wear the dam straight tube and be communicated with;
Cast one circle annular concrete basis in d, the foundation soil below the refuse landfill bottom of the reservior, around plastic tubulature top, and arrange that one group of bolt is fixedly connected the bottom of the reservior impervious barrier with concrete foundation;
E, with plastic tubulature upper end and the impervious barrier welding that is layed in the bottom, reservoir area, and the sluicing double-edged fine-toothed comb is installed in the water inlet of plastic tubulature;
Drop liquid lead layer is oozed in f, bottom of the reservior backfill, and lays anti-filter geotextiles on the surface.
The invention has the beneficial effects as follows: the present invention is designed to the floor drain formula with the guide structure; Promptly vertically arrange and ooze the flanged plastic tubulature that drop liquid lead layer is 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 the bottom, reservoir area, the lower end through 90 degree elbows connect pass at the bottom of the waste dam dam wear the dam straight tube; The weld of plastic tubulature and impervious barrier does not receive the influence of waste dam differential settlement; Thereby what solved that the waste dam differential settlement brings in the prior art 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 has guaranteed the overall integrity and the antiseepage validity of refuse landfill antiseepage guide structure.
Description of drawings
Fig. 1 is the structure chart of background technology of the present invention.
Fig. 2 is a structure chart of the present invention.
Fig. 3 is that bolt connects drawing among Fig. 2.
The specific embodiment
As shown in Figure 2; Present embodiment is example with the valley type landfill, and it forms basin shape garbage loading embeading reservoir area through build waste dam 1 in the entrance, mountain valley, and impervious barrier 2 (adopting the HDPE antiseepage film to process) is laid on this bottom, reservoir area and side slope surface; Impervious barrier 2 tops are laid successively from bottom to top and are oozed drop liquid lead layer 3 and anti-filter geotextiles 4; Said garbage loading embeading reservoir area bottom is vertical to be arranged and oozes the plastic tubulature 5 that drop liquid lead layer 3 is communicated with, this plastic tubulature upper end flanged and with the impervious barrier that is layed in the bottom, reservoir area 2 welding, the lower end is spent elbows 6 connections through 90 and is worn dam straight tube 7; This is worn the dam straight tube other end and extends outside the waste dam 1, and is connected with outside sewage disposal system; Quantity and the elevation of wearing dam straight tube 7 can be provided with according to the landfill yard actual conditions flexibly, and not receiving the reservoir area to ooze drop liquid guide system elevation influences, and wear dam straight tube 7 in this example and at the bottom of waste dam 1 dam, pass, the whole floor drain formula guide structure that forms.
Cast one circle annular concrete basis 8 below the bottom, said garbage loading embeading reservoir area, around plastic tubulature 5 tops, the bolt 9 that this concrete foundation upper surface passes through one group of symmetric arrangement is fixedly connected with impervious barrier 2; The thickness of concrete foundation 8 is more than or equal to 100mm in this example, and generally is no more than 300mm, and bolt 9 to the distance of concrete foundation 8 external cylindrical surfaces more than or equal to 100mm, and generally be no more than 300mm, to guarantee whole stable degree.
As shown in Figure 3; Said bolt 9 comprises that an end is anchored in the expansion bolt 9-1 in the concrete foundation 8; This expansion bolt other end extends concrete foundation 8 upper surfaces top; And be threaded with nut 9-6 after passing 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 successively; Thereby bottom of the reservior impervious barrier 2 is fixedly connected with concrete foundation 8, can as required impervious barrier 2 and liner I 9-2, liner II 9-3, the flat flat steel bar 9-4 welding of stainless steel be fixed after the installation.
Said plastic tubulature 5 water inlets (promptly with the impervious barrier welding ends) are embedded with sluicing double-edged fine-toothed comb 10, are used to prevent that foreign material from getting into guide pipeline (comprise plastic tubulature, elbow and wear the dam straight tube) with current, avoid blocking channel.
For guaranteeing guide pipeline resistance to overturning, said elbow 6 Outsourcing Concrete buttresses 11 provide certain supporting role; Wear dam straight tube 7 for protection simultaneously, be cast with concrete side's bag 12 at its external surface, reduction causes wearing the possibility that dam straight tube 7 deforms and ruptures because of differential settlement.
The construction sequence of present embodiment is following:
(needing to show soil earlier before the build waste dam 1 excavates for a, the base surface behind the excavation of planning to build waste dam 1; This base surface promptly is the base surface that forms after table soil excavation is accomplished) go up to 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, and pour concrete side wraps 12 outside wearing dam straight tube 7 then, the safety of wearing dam straight tube 7 with protection;
B, build waste dam 1, form the refuse landfill of basin shape in the entrance in mountain valley;
Arrange 90 degree elbows 6 in c, the foundation soil below the refuse landfill bottom of the reservior, and outside this elbow, build concrete buttress 11, play the effect of supporting and protecting elbow 6; Vertically then arrange flanged (FLGD) plastic tubulature 5, make its upper end extend the refuse landfill bottom of the reservior, the lower end through elbow 6 with wear dam straight tube 7 and be communicated with;
Cast one circle annular concrete basis 8 in d, the foundation soil below the refuse landfill bottom of the reservior, around plastic tubulature 5 tops, and arrange that one group of bolt 9 is fixedly connected bottom of the reservior impervious barrier 2 with concrete foundation 8;
E, with plastic tubulature 5 upper ends (flanged end) and the impervious barrier that is layed in reservoir area bottom 2 welding, and sluicing double-edged fine-toothed comb 10 is installed in the water inlet of plastic tubulature 5, in case foreign material get into the guide pipeline with current, cause obstruction;
Drop liquid lead layer 3 is oozed in f, bottom of the reservior backfill, and the anti-filter of laying geotextiles 4 gets final product on the surface.
When pouring into a mould above-mentioned concrete foundation 8, must foundation soil be excavated to projected depth earlier with concrete buttress 11, completion to be cast and solidify after backfill is closely knit again gets final product.
Claims (10)
1. refuse landfill floor drain formula antiseepage guide structure; Have through building the basin shape garbage loading embeading reservoir area that waste dam (1) forms; Impervious barrier (2) is laid on this bottom, reservoir area and side slope surface; Impervious barrier (2) top is laid successively from bottom to top and is oozed drop liquid lead layer (3) and anti-filter geotextiles (4); It is characterized in that: said garbage loading embeading reservoir area bottom is vertical to be arranged and oozes the plastic tubulature (5) that drop liquid lead layer (3) is communicated with, this plastic tubulature upper end flanged and with impervious barrier (2) welding that is layed in the bottom, reservoir area, the lower end through 90 spend that elbows (6) connection passes at the bottom of waste dam (1) dam wear dam straight tube (7).
2. refuse landfill floor drain formula antiseepage guide structure according to claim 1; It is characterized in that: below the bottom, said garbage loading embeading reservoir area, around plastic tubulature (5) top cast one circle annular concrete basis (8), and the bolt (9) that this concrete foundation upper surface passes through one group of symmetric arrangement is fixedly connected with impervious barrier (2).
3. refuse landfill floor drain formula antiseepage guide structure according to claim 2; It is characterized in that: said bolt (9) comprises that an end is anchored in the expansion bolt (9-1) in the concrete foundation (8); This expansion bolt other end extends concrete foundation (8) upper surface top, and pass successively liner I (9-2), impervious barrier (2), liner II (9-3), the flat flat steel bar (9-4) of stainless steel with stainless steel gasket (9-5) rear thread attaching nut (9-6) thus realize fixing of impervious barrier (2).
4. according to claim 2 or 3 described refuse landfill floor drain formula antiseepage guide structures, it is characterized in that: the thickness of said concrete foundation (8) is more than or equal to 100mm.
5. according to claim 2 or 3 described refuse landfill floor drain formula antiseepage guide structures, it is characterized in that: said bolt (9) arrives the distance of concrete foundation (8) external cylindrical surface more than or equal to 100mm.
6. refuse landfill floor drain formula antiseepage guide structure according to claim 1, it is characterized in that: said plastic tubulature (5) water inlet is embedded with sluicing double-edged fine-toothed comb (10).
7. refuse landfill floor drain formula antiseepage guide structure according to claim 1, it is characterized in that: said elbow (6) outsourcing is supported with concrete buttress (11).
8. refuse landfill floor drain formula antiseepage guide structure according to claim 1 is characterized in that: saidly wear dam straight tube (7) outsourcing protection with concrete side's bag (12).
9. refuse landfill floor drain formula antiseepage guide structure according to claim 1 is characterized in that: said impervious barrier (2) is the HDPE antiseepage film.
10. the job practices of a refuse landfill floor drain formula antiseepage guide structure is characterized in that step is following:
A, on the base surface behind the excavation of planning to build waste dam (1), 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; 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 outside this elbow, build and support with concrete buttress (11); The vertical then flanged (FLGD) plastic tubulature (5) of arranging; Make its upper end extend the refuse landfill bottom of the reservior, the lower end through elbow (6) with wear dam straight tube (7) and be communicated with;
Cast one circle annular concrete basis (8) in d, the foundation soil below the refuse landfill bottom of the reservior, around plastic tubulature (5) top, and arrange that one group of bolt (9) is fixedly connected bottom of the reservior impervious barrier (2) with concrete foundation (8);
E, with plastic tubulature (5) upper end and impervious barrier (2) welding that is layed in the bottom, reservoir area, and sluicing double-edged fine-toothed comb (10) is installed in the water inlet of plastic tubulature (5);
Drop liquid lead layer (3) is oozed in f, bottom of the reservior backfill, and lays anti-filter geotextiles (4) on the surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| 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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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| 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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| CN102383490A true CN102383490A (en) | 2012-03-21 |
| CN102383490B CN102383490B (en) | 2013-12-18 |
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Cited By (7)
| 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 |
| CN103758199A (en) * | 2014-01-13 | 2014-04-30 | 上海老港废弃物处置有限公司 | Rain-sewage diversion method for garbage first-layer landfill |
| CN105536315A (en) * | 2015-12-01 | 2016-05-04 | 中国航空规划设计研究总院有限公司 | Solid-liquid separating structure and method thereof under corrosive environment |
| 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 |
| CN108086365A (en) * | 2017-12-19 | 2018-05-29 | 浙江科技学院 | Self-repairing refuse landfill impervious layer and self-repairing impervious method thereof |
| CN109322369A (en) * | 2018-11-21 | 2019-02-12 | 天津建昌环保股份有限公司 | A kind of bolt type landfill percolate pipe wears dam 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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| CN103758199A (en) * | 2014-01-13 | 2014-04-30 | 上海老港废弃物处置有限公司 | Rain-sewage diversion method for garbage first-layer landfill |
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| 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 |
| CN108086365A (en) * | 2017-12-19 | 2018-05-29 | 浙江科技学院 | Self-repairing refuse landfill impervious layer and self-repairing impervious method thereof |
| CN109322369A (en) * | 2018-11-21 | 2019-02-12 | 天津建昌环保股份有限公司 | A kind of bolt type landfill percolate pipe wears dam structure |
| 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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