CN101956404B - Side slope middle impermeable layer anchoring of steep hard rocky bedrock side slope single-layer impermeable structure - Google Patents
Side slope middle impermeable layer anchoring of steep hard rocky bedrock side slope single-layer impermeable structure Download PDFInfo
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- CN101956404B CN101956404B CN2010102799275A CN201010279927A CN101956404B CN 101956404 B CN101956404 B CN 101956404B CN 2010102799275 A CN2010102799275 A CN 2010102799275A CN 201010279927 A CN201010279927 A CN 201010279927A CN 101956404 B CN101956404 B CN 101956404B
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- side slope
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Abstract
The invention discloses a side slope middle anchoring impermeable layer of a steep hard rocky side slope single-layer impermeable structure in a household refuse landfill, comprising a bedrock side slope, a Geo-synthetic Clay Liner GCL, an impermeable high density polyethylene (HDPE) membrane, membrane protection geotextile, a composite geotechnical drainage net, net inverted filtration geotextile, an anchoring HDPE membrane and a connection HDPE membrane, wherein the membrane protection geotextile, the composite geotechnical drainage net and net inverted filtration geotextile are fixedly connected with the connection HDPE membrane through connection rivets; the lower surface of the connection HDPE membrane is fixedly connected with the upper surface of the impermeable HDPE membrane via thermal-fusion welding; the lower surface of the impermeable HDPE membrane is fixedly connected with the front section of the anchoring HDPE membrane via thermal-fusion welding; and the rear section of the anchoring HDPE membrane is bent downwards and then fixedly connected to the bedrock side slope together with the Geo-synthetic Clay Liner GCL through expansion bolts. The impermeable HDPE membrane of the invention has the advantages of stable and firm anchoring, simple structure, convenient construction and reliable quality and guarantees the construction safety of the impermeable layer structure.
Description
Technical field the present invention relates to a kind of household refuse landfill sites impervious barrier anchorage style, particularly a kind of precipitous hard rock matter basement rock side slope individual layer leakage preventing structure side slope middle part impervious barrier anchoring.
The effect of background technology household refuse landfill sites impervious barrier structure be through antiseepage film with the garbage loading embeading thing and on every side the stratum isolate fully; Form the independent and environment of sealing of refuse landfill, and then stop percolate to permeate the ground underground water around the landfill yard is polluted.Stable, the firm anchoring of refuse landfill impervious barrier structure are the assurances that realizes its function; The anchoring of antiseepage film or impervious barrier is the requisite engineering measure of constructing of household refuse landfill sites seepage control system; At soil-slope or unconsolidated formation class rock side slope; The anchoring of antiseepage film or impervious barrier can be provided with anchored platform through side slope middle part, and on anchored platform excavation anchoring ditch and back down the engineering measure of digging the anchoring ditch on the slope and realize.
And in rock slope, the particularly refuse landfill of solid rock side slope; Effective anchoring of antiseepage film or impervious barrier can be carried out through the pattern of excavation anchoring ditch in the side slope top; But at the side slope middle part, because anchored platform is provided with very difficulty, anchoring ditch excavation difficulty is bigger; Situation about can't excavate is arranged even, so the anchoring of rock slope, particularly solid rock side slope middle part antiseepage film or impervious barrier becomes the difficult point of household refuse landfill sites seepage control system engineering.
The present invention just is being based on above former thereby proposition.The individual layer leakage preventing structure is applicable to that the direct foundation saturation permeability coefficient is less than 1.0 * 10
-5Cm/s, and thickness is not less than the household refuse landfill sites of 2.0m, and the individual layer leakage preventing structure impervious barrier anchorage style that the present invention relates to just can solve the engineering problem of basement rock side slope middle part impervious barrier anchoring.
Oozing drop liquid water conservancy diversion layer and can adopt packed cobble in the impervious barrier structure also can be adopted the composite earthwork drainage network, and percolate water conservancy diversion layer adopts the composite earthwork drainage network on the antiseepage film in this anchorage style impervious barrier structure.
The technical problem that summary of the invention the present invention will solve is to provide a kind of technology reliable, easy construction, can guarantee the anchorage style of the household refuse landfill sites basement rock side slope individual layer leakage preventing structure side slope middle part impervious barrier that the impervious barrier anchoring of basement rock side slope middle part is firm, firm.
It is following that the present invention solves the problems of the technologies described above the technical scheme of being taked: the impervious barrier anchoring of precipitous, the hard rock side slope individual layer of a kind of household refuse landfill sites leakage preventing structure side slope middle part; Comprise and protect geotextiles, composite earthwork drainage network and online anti-filter geotextiles on basement rock side slope, sodium bentonite waterproof bed course GCL, antiseepage high density polyethylene film, the film, it is characterized in that: it also comprises anchoring high density polyethylene film, connects the high density polyethylene film; Protect geotextiles, composite earthwork drainage network to be fixedly connected through being connected rivet and being connected the high density polyethylene film on the film with the online anti-geotextiles of filtering; Connect the high density polyethylene film following (below be meant the one side that is bordering on the basement rock side slope; Be meant the one side that is distal to the basement rock side slope above; As follows) through thermofussion welding be fixedly connected above the antiseepage high density polyethylene film; The following of antiseepage high density polyethylene film is fixedly connected with anchoring high density polyethylene film leading portion through thermofussion welding, and anchoring high density polyethylene film back segment bends the back downwards and sodium bentonite waterproof bed course GCL is fixedly connected on the basement rock side slope through expansion bolt.
Further, be provided with billet above the anchoring high density polyethylene film back segment, expansion bolt is fixedly connected on the basement rock side slope through billet with anchoring high density polyethylene film back segment and sodium bentonite waterproof bed course GCL.
The present invention adopts the thermofussion welding mode to make antiseepage high density polyethylene film with the airtight fixed connection of anchoring high density polyethylene film, antiseepage high density polyethylene film and be connected the high density polyethylene symphysis and connect; Adopt expansion bolt that anchoring high density polyethylene film and sodium bentonite waterproof bed course GCL are fixed on the basement rock side slope; Adopting the connection rivet to connect protects geotextiles, composite earthwork drainage network, the anti-geotextiles of filtering to be fixed on the antiseepage high density polyethylene on high density polyethylene film, the film; So neither can cause because of fixing and antiseepage high density polyethylene film produced injury with being connected; Can guarantee the firm, firm of antiseepage high density polyethylene film anchoring again, guarantee the construction safety of impervious barrier structure.The invention solves present stage is provided with the technical barrier that refuse landfill is carried out anchoring to antiseepage film in the rock matter area of rock slope, particularly solid rock side slope, has that structural shape is simple, an easy construction, reliable quality advantage.
Description of drawings
Fig. 1 is a present stage soil-slope or unconsolidated formation class rock side slope individual layer leakage preventing structure impervious barrier anchoring sketch map.
Fig. 2 is a structural representation of the present invention,
Fig. 3 is Fig. 2 schematic cross section,
Fig. 4 is Fig. 2 vertical section sketch map.
Among the figure: 1-basement rock side slope (present stage soil-slope or unconsolidated formation class rock side slope), 2-sodium bentonite waterproof bed course GCL, 3-billet, 4-anchoring high density polyethylene film; The 5-expansion bolt, 6-thermofussion welding horizontal position welding seam, 7-antiseepage high density polyethylene film, 8-connects the high density polyethylene film; 9-thermofussion welding longitudinal seam is protected geotextiles on the 10-film, 11-composite earthwork drainage network, the online anti-filter geotextiles of 12-; 13-connects rivet, 14-anchored platform, 15-anchoring ditch.
The specific embodiment such as Fig. 2 are to shown in Figure 4: the impervious barrier anchoring of precipitous, the hard rock side slope individual layer of a kind of household refuse landfill sites leakage preventing structure side slope middle part; Comprise precipitous, hard rock matter basement rock side slope 1, the sodium bentonite waterproof bed course GCL2, the antiseepage high density polyethylene film 7 that are used for protecting under the antiseepage film, be used for protection geotextiles 10, composite earthwork drainage network 11 and online anti-filter geotextiles 12 on the film of antiseepage film protection, it also comprises anchoring high density polyethylene film 4, connects high density polyethylene film 8; Protect geotextiles 10, composite earthwork drainage network 11 and online anti-filter geotextiles 12 through being connected rivet 13 and being connected 8 fixed connections of high density polyethylene film on the film; Connect high density polyethylene film 8 following through thermofussion welding be fixedly connected above the antiseepage high density polyethylene film 7; The following of antiseepage high density polyethylene film 7 is fixedly connected with anchoring high density polyethylene film 4 leading portions (being bordering on the part of refuse landfill) through thermofussion welding, and anchoring high density polyethylene film 4 back segments (being bordering on the part of basement rock) bend back and sodium bentonite waterproof bed course GCL2 downwards and are fixedly connected on basement rock side slope 1 through expansion bolt 5.
Be provided with billet 3 above the back segment of anchoring high density polyethylene film 4, expansion bolt 5 is fixedly connected on basement rock side slope 1 through billet 3 with the back segment and the sodium bentonite waterproof bed course GCL2 of anchoring high density polyethylene film 4.
Referring to Fig. 4; Be vertical section structure sketch map of the present invention: be positioned at antiseepage high density polyethylene film 7 above the sodium bentonite waterproof bed course GCL2 through the thermofussion welding mode with after anchoring high density polyethylene film 4 is connected, form thermofussion welding horizontal position welding seam 6 between antiseepage high density polyethylene film 7 and the anchoring high density polyethylene film 4;
The anchoring that effective and firm thermofussion welding horizontal position welding seam 6 forms antiseepage high density polyethylene film 7 between anchoring high density polyethylene film 4 and the antiseepage high density polyethylene film 7; In other words, effective and firm thermofussion welding horizontal position welding seam 6 is with anchoring high density polyethylene film 4 and antiseepage high density polyethylene film 7 airtight fixed connections.
Referring to Fig. 3; Be cross section structure sketch map of the present invention: connect high density polyethylene film 8 and be connected with antiseepage high density polyethylene film 7, connect formation thermofussion welding longitudinal seam 9 between high density polyethylene film 8 and the antiseepage high density polyethylene film 7 through the thermofussion welding mode.Effective and firm thermofussion welding longitudinal seam 9 will connect high density polyethylene film 8 and antiseepage high density polyethylene film 7 airtight fixed connections.And protect geotextiles 10, composite earthwork drainage network 11, online anti-filter geotextiles 12 to pass through connection rivet 13 and be connected high density polyethylene film 8 to be fixedly connected on the film.
Be provided with anchoring ditch (not shown) at basement rock side slope 1 top, anchoring is carried out through the anchoring ditch that basement rock side slope top is provided with in impervious barrier top.
The present invention adopts the thermofussion welding mode to make antiseepage high density polyethylene film 7 and the 4 airtight fixed connections of anchoring high density polyethylene film, antiseepage high density polyethylene film 7 and to be connected high density polyethylene 8 airtight fixing; Adopt expansion bolt 5 that anchoring high density polyethylene 4 is fixed on the basement rock side slope 1 with sodium bentonite waterproof bed course GCL2, adopt connection rivet 13 that protection geotextiles 10, composite earthwork drainage network 11 on the film are fixed on online anti-filter geotextiles 12 and be connected on the high density polyethylene film 8; Like this, neither can cause because of fixing and antiseepage high density polyethylene film 7 produced injury, can guarantee the firm, firm of antiseepage high density polyethylene film 7 anchorings again, guarantee the construction safety of impervious barrier structure with being connected.
Present stage, the household garbage anchoring process of filling out an antiseepage film or impervious barrier was applicable to soil-slope or unconsolidated formation class rock side slope; The embodiment that percolate water conservancy diversion layer in the impervious barrier structure adopts the composite earthwork drainage network is referring to Fig. 1: at soil-slope or unconsolidated formation class rock side slope 1 anchored platform 14 is set; Excavation anchoring ditch 15 on anchored platform 14; And upwards lay protection geotextiles 10 on sodium bentonite waterproof bed course 2, density polyethylene film with high 7, the film, composite earthwork drainage network 11 and geotextiles 12 on the net successively at the anchored platform 15 and the anchoring ditch 15 surfaces end of to, at last with 15 backfills of anchoring ditch.
Claims (5)
1. precipitous, the hard rock side slope individual layer of household refuse landfill sites leakage preventing structure side slope middle part impervious barrier anchoring; Comprise and protect geotextiles, composite earthwork drainage network and online anti-filter geotextiles on basement rock side slope, sodium bentonite waterproof bed course GCL, antiseepage high density polyethylene film, the film, it is characterized in that: it also comprises anchoring high density polyethylene film (4), connects high density polyethylene film (8); Protect geotextiles (10), said composite earthwork drainage network (11) to be fixedly connected with the said high density polyethylene film (8) that is connected through being connected rivet (13) on the said film with said online anti-filter geotextiles (12); Said connection high density polyethylene film (8) following through thermofussion welding be fixedly connected above the said antiseepage high density polyethylene film (7); The following of said antiseepage high density polyethylene film (7) is fixedly connected with said anchoring high density polyethylene film (4) leading portion through thermofussion welding, and said anchoring high density polyethylene film (4) back segment bends the back downwards and said sodium bentonite waterproof bed course GCL (2) is fixedly connected on said basement rock side slope (1) through expansion bolt (5).
2. the impervious barrier anchoring of precipitous, the hard rock side slope individual layer of a kind of household refuse landfill sites as claimed in claim 1 leakage preventing structure side slope middle part; It is characterized in that: be provided with billet (3) above the back segment of said anchoring high density polyethylene film (4), said expansion bolt (5) is fixedly connected on said basement rock side slope (1) through said billet (3) with the back segment and the said sodium bentonite waterproof bed course GCL (2) of said anchoring high density polyethylene film (4).
3. the impervious barrier anchoring of precipitous, the hard rock side slope individual layer of a kind of household refuse landfill sites as claimed in claim 1 leakage preventing structure side slope middle part is characterized in that: thermofussion welding horizontal position welding seam (6) is with said anchoring high density polyethylene film (4) and airtight fixed connection of said antiseepage high density polyethylene film (7).
4. like claim 1, the impervious barrier anchoring of precipitous, the hard rock side slope individual layer of 2 or 3 described a kind of household refuse landfill sites leakage preventing structure side slope middle part, it is characterized in that: thermofussion welding longitudinal seam (9) is with said connection high density polyethylene film (8) and airtight fixed connection of said antiseepage high density polyethylene film (7).
5. the impervious barrier anchoring of precipitous, the hard rock side slope individual layer of a kind of household refuse landfill sites as claimed in claim 4 leakage preventing structure side slope middle part; It is characterized in that: said basement rock side slope (1) top is provided with the anchoring ditch, and impervious barrier top anchored is in said anchoring ditch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102799275A CN101956404B (en) | 2010-09-07 | 2010-09-07 | Side slope middle impermeable layer anchoring of steep hard rocky bedrock side slope single-layer impermeable structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102799275A CN101956404B (en) | 2010-09-07 | 2010-09-07 | Side slope middle impermeable layer anchoring of steep hard rocky bedrock side slope single-layer impermeable structure |
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| Publication Number | Publication Date |
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| CN101956404A CN101956404A (en) | 2011-01-26 |
| CN101956404B true CN101956404B (en) | 2012-01-18 |
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| CN2010102799275A Expired - Fee Related CN101956404B (en) | 2010-09-07 | 2010-09-07 | Side slope middle impermeable layer anchoring of steep hard rocky bedrock side slope single-layer impermeable structure |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102182195A (en) * | 2011-02-01 | 2011-09-14 | 深圳市胜义环保有限公司 | Weathering preventing and reinforcing method and structure of mudstone side slope of waste residue storage yard |
| CN105019464A (en) * | 2015-08-03 | 2015-11-04 | 中国市政工程西北设计研究院有限公司 | Refuse landfill anti-seepage layer structure achieving anchoring through top of side wall of concrete structure flood interception channel |
| CN106436775B (en) * | 2016-07-07 | 2018-08-14 | 北京广泰源合嘉环保工程有限公司 | A kind of efficient attachment device for the installation of flexible barrier system |
| CN107620325B (en) * | 2017-10-17 | 2023-05-09 | 中国科学院武汉岩土力学研究所 | Composite seepage-proofing system for high and steep side slope of landfill |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2272869C2 (en) * | 2004-04-26 | 2006-03-27 | Открытое акционерное общество "Татнефть" им. В.Д. Шашина | Storage pit building method |
| CN201169774Y (en) * | 2008-03-13 | 2008-12-24 | 贵阳铝镁设计研究院 | Slope anti-seepage structure of mountain valley type dry method red mud storage yard |
| CN201245835Y (en) * | 2008-08-08 | 2009-05-27 | 中国瑞林工程技术有限公司 | Anti-seepage apparatus |
| CN201512779U (en) * | 2009-10-22 | 2010-06-23 | 北京高能时代环境技术股份有限公司 | Seepage control structure used in red mud disposal sites |
| CN201785777U (en) * | 2010-09-07 | 2011-04-06 | 中国市政工程西北设计研究院有限公司 | Impermeable layer anchor of single-layer impermeable structure for central part of side slope of steep and hard bed rock |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000084518A (en) * | 1998-09-09 | 2000-03-28 | General Bondo Kk | Impervious layer |
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2010
- 2010-09-07 CN CN2010102799275A patent/CN101956404B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2272869C2 (en) * | 2004-04-26 | 2006-03-27 | Открытое акционерное общество "Татнефть" им. В.Д. Шашина | Storage pit building method |
| CN201169774Y (en) * | 2008-03-13 | 2008-12-24 | 贵阳铝镁设计研究院 | Slope anti-seepage structure of mountain valley type dry method red mud storage yard |
| CN201245835Y (en) * | 2008-08-08 | 2009-05-27 | 中国瑞林工程技术有限公司 | Anti-seepage apparatus |
| CN201512779U (en) * | 2009-10-22 | 2010-06-23 | 北京高能时代环境技术股份有限公司 | Seepage control structure used in red mud disposal sites |
| CN201785777U (en) * | 2010-09-07 | 2011-04-06 | 中国市政工程西北设计研究院有限公司 | Impermeable layer anchor of single-layer impermeable structure for central part of side slope of steep and hard bed rock |
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