CN206128142U - Be applied to landfill yard seepage prevention structure of mountain valley type landfill yard sludge sump solidification back ground - Google Patents
Be applied to landfill yard seepage prevention structure of mountain valley type landfill yard sludge sump solidification back ground Download PDFInfo
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- CN206128142U CN206128142U CN201621161947.1U CN201621161947U CN206128142U CN 206128142 U CN206128142 U CN 206128142U CN 201621161947 U CN201621161947 U CN 201621161947U CN 206128142 U CN206128142 U CN 206128142U
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Abstract
The utility model discloses a be applied to landfill yard seepage prevention structure of mountain valley type landfill yard sludge sump solidification back ground, including reservoir area bottom seepage prevention structure, massif side slope seepage prevention structure and rubbish side slope seepage prevention structure, reservoir area bottom seepage prevention structure includes first basal layer in order, first isolation adds the muscle layer, groundwater water conservancy diversion layer, the second septum is from adding the muscle layer, the clay protective layer, first barrier layer, first epimembranal protective layer, leachate collects the layer, leachate owner collects layer and the anti - isolation layer of straining, massif side slope seepage prevention structure includes the second basal layer in order, groundwater or crevice water water conservancy diversion layer, first membrane lower protection layer, first barrier layer, protective layer on the secondary membrane, a leachate collects the layer, rubbish side slope seepage prevention structure includes the third basal layer in order, secondary membrane lower protection layer, the third barrier layer, protective layer on the tertiary membrane, the 2nd leachate collects the layer. The utility model discloses can utilize raw sewage hole place, the landfill that the structure made new advances under the potential safety hazard prerequisite is regional eliminating, protects all ring edge borders.
Description
Technical field
This utility model is related to a kind of landfill site seepage prevention structure, relates generally to one kind and is applied to Valley Type Landfill Site sludge sump
The landfill site seepage prevention structure of solidification groundwork.
Background technology
Common municipal sludge method of disposal be Sludge landfill technology, i.e. sludge through pretreatment, change its high-moisture percentage,
The characteristic of high viscosity, easy rheology, high retentiveness and hypotonicity so as to meet《The mixing of urban wastewater treatment firm sludge treatment is filled out
Bury and use shale》Household refuse landfill sites are poured into after the regulation of GB/T 23485 and certain rock-soil mechanics index to be filled.
But actually because disposal ability is limited, sludge is often not up to process standard and is just directly filled, and is formed hidden
Suffer from huge sludge sump, to landfill yard operation great risk is brought, simultaneously as sludge is directly exposed in air, cause week
Surrounding environment stench is unpleasant, and mosquitos and flies is various.At present, domestic overwhelming majority household refuse landfill sites all suffer from a common difficult problem,
Sludge sump i.e. to existing in landfill yard for a long time is dealt carefully with.Therefore, most domestic landfill yard is reduction two
Secondary pollution, eliminate safe hidden trouble, such sludge sump carried out into improvement in situ, original position administer after to make full use of storage capacity, save soil
Ground resource, using the sludge sump after solidification as substrate new sanitary landfills region is further built.
Utility model content
The technical problems to be solved in the utility model be to provide one kind be applied to Valley Type Landfill Site sludge sump solidification after
The landfill site seepage prevention structure of base, its safe and reliable, easy construction, investment are saved, and raw sewage can be made full use of to cheat place, construction
Go out new landfill region and continue landfill waste, fully save land resource, protect surrounding enviroment.
This utility model discloses a kind of landfill site seepage prevention structure for being applied to Valley Type Landfill Site sludge sump solidification groundwork,
Including reservoir area base impervious structure, and the massif slope seepage control structure and rubbish for being respectively at reservoir area base impervious structure both sides
Slope seepage control structure, the reservoir area base impervious structure from bottom to up sequentially include first foundation layer, first isolation reinforcing layer,
Lower water guide layer, the second isolation reinforcing layer, clay protective layer, the first impervious barrier, the first film up-protective layer, Leachate site time are collected
Layer, the main collecting layer of Leachate site and anti-filter sealing coat, the massif slope seepage control structure sequentially include from bottom to up the second basal layer,
Subsoil water or crevice water guide layer, the first film lower protective layer, the second impervious barrier, the second film up-protective layer and the first leachate collecting
Layer, the rubbish slope seepage control structure from bottom to up sequentially include the 3rd basal layer, the second film lower protective layer, the 3rd impervious barrier,
Tertiary membrane up-protective layer and the second leachate collecting layer.
First impervious barrier, the second impervious barrier and the 3rd impervious barrier are linear low close not less than 1.5mm using thickness
Degree polyethylene film for earthwork.
The first isolation reinforcing layer adopts the polypropylene Woven geofabric no less than 1 layer, polypropylene Woven geofabric
Intensity is 150-500kN/m.
The second isolation reinforcing layer adopts the polypropylene Woven geofabric no less than 1 layer, polypropylene Woven geofabric
Intensity is 150-500kN/m.
The Leachate site sub-collector layer adopts soil engineering composite drainage network, and the web-roll core of the soil engineering composite drainage network is geonet
Lattice, the length of side of earthwork grid is 5.0-8.0mm, and non-woven geotextile is all covered with above and below web-roll core, non-woven geotextile
Grammes per square metre is not less than 200g/m2。
The subsoil water or crevice water guide layer adopt the web-roll core of soil engineering composite drainage network, the soil engineering composite drainage network to be
Earthwork grid, the length of side of earthwork grid is 5.0-8.0mm, and non-woven geotextile, nonwoven soil are all covered with above and below web-roll core
The grammes per square metre of work cloth is not less than 200g/m2。
The first leachate collecting layer and the second leachate collecting layer adopt soil engineering composite drainage network, and the geotechnique is multiple
The web-roll core for closing drainage network is earthwork grid, and the length of side of earthwork grid is 5.0-8.0mm, and nothing is all covered with above and below web-roll core
Geotextiles are spun, the grammes per square metre of non-woven geotextile is not less than 200g/m2。
The beneficial effects of the utility model are：
1st, this utility model is the leakage preventing structure of the newly-built landfill yard based on the substrate after sludge curing, reservoir area bottom
Reinforcing layer is added in leakage preventing structure, can be very good to solve the destruction that gene basis differential settlement is produced.
2nd, using LLDPE linear low density polyethylene geomembranes, with very strong seepage capability, infiltration coefficient reaches
1.0×10-13m/s；With more preferable flexible and ductility, with good mechanical strength, anti tear is strong with puncture resistant ability,
With good chemical stability, resistance to chemical attack is strong, can maintaining a long-term stability property.
3rd, based on sludge sump solidification groundwork in Valley Type Landfill Site, new waste burying is built, can be fully sharp
Place is cheated with raw sewage, new landfill region is constructed and is continued landfill waste, fully save land resource, protect surrounding enviroment.
There is safe and reliable, easy construction, reduce investment outlay using this utility model leakage preventing structure.
Description of the drawings
Fig. 1 is reservoir area base impervious structural representation；
Fig. 2 is massif slope seepage control structural representation；
Fig. 3 is rubbish slope seepage control structural representation.
Specific embodiment
Below in conjunction with the accompanying drawings the utility model is described in further detail with specific embodiment, so that those skilled in the art
This utility model can be better understood from and can be practiced, but illustrated embodiment is not as to restriction of the present utility model.
This utility model provides a kind of landfill site seepage prevention structure for being applied to Valley Type Landfill Site sludge sump solidification groundwork,
Including reservoir area base impervious structure, and the massif slope seepage control structure and rubbish for being respectively at reservoir area base impervious structure both sides
Slope seepage control structure.This utility model is directed to the foundation after sludge curing, in reservoir area bottom, rubbish side slope, massif side slope
Place is targetedly respectively provided with different leakage preventing structures, to ensure that new structure fills region security reliability, easy construction, saving
The requirement of investment.
The reservoir area base impervious structure is as shown in figure 1, sequentially include that from bottom to up the isolation of first foundation layer 1, first adds
Muscle layer 2, subsoil water guide layer 3, second isolation reinforcing layer 4, clay protective layer 5, the first impervious barrier 6, the first film up-protective layer 7,
The main collecting layer 9 of Leachate site sub-collector layer 8, Leachate site and anti-filter sealing coat 10.
First foundation layer 1 is trimmed sludge sump ground after the completion of solidification, it is desirable to which compactness is not less than 93%, along leading
Row's direction vertical and horizontal gradient is not less than 2%.Require to guarantee that all holes and crack are blocked when first foundation layer 1 is smooth, prevent from oozing
Drip liquid permeates the ground water, while effectively preventing landfill gas lateral transfer, it is ensured that surrounding building safety.
Reinforcing layer 2 is isolated in the laying first on first foundation layer 1, and the first isolation reinforcing layer 2 is using the 150- no less than 1 layer
The polypropylene Woven geofabric of 500kN/m, the whole newly-built waste burying seepage control system of the first isolation reinforcing layer 2 pairs plays reinforcement and resists
Sedimentation, Stabilization, resist destruction of the substrate differential settlement to seepage control system, while playing anti-filter work to basal layer
With.Steady in a long-term to guarantee, geotextiles are 75mm ± 15mm using suture connected mode, the lap width for suturing connection.
Subsoil water guide layer 3 is laid on first isolation reinforcing layer 2, subsoil water guide layer 3 is the cobble thick no less than 300mm
Or gravel, level is with 20-50mm.To avoid the damage of the last process finished product completed to constructing, it is desirable to first using artificial laying
Packed rubble or the method construction of small-sized machine laying, per 100m2Mark post at one is set, it is uniform with the thickness for controlling filler.
Reinforcing layer 4 is isolated in laying second on subsoil water guide layer 3, and the second isolation reinforcing layer 4 is using the 150- no less than 1 layer
The polypropylene Woven geofabric of 500kN/m, the whole landfill site seepage prevention system of the second isolation reinforcing layer 4 pairs plays reinforcement, Stabilization,
Destruction of the opposing substrate differential settlement to seepage control system, while playing isolation to clay protective layer and subsoil water guide layer
Effect.Specific embodiment is with the first isolation reinforcing layer 2.
Clay protective layer 5 is laid on second isolation reinforcing layer 4, the thickness of clay protective layer 5 is set to 750mm, infiltration coefficient
No more than 1.0 × 10-6Cm/s, clay layer construction finishes rear flatness and should reach every square of error of meter and is not more than 2 cm.Clay is protected
The clay water content of sheath 5 should be by adding water or air-drying control in optimum moisture content, to reach optimal compacting factor.Clay is protected
The first impervious barrier 6 is laid on sheath, the first impervious barrier 6 is using the flexible geomembrane with the more preferable bright finish of ductility, and geomembrane is excellent
Elect LLDPE as（Linear low density polyethylene geomembrane）, not less than 1.5mm, bright finish, lap width should meet code requirement to thickness
（Sweat soldering is 100mm ± 20mm, and extruding is welded as 75mm ± 20mm）.LLDPE linea low density geomembranes act in accordance with slope laying,
Horizontal joint must be more than 1.5m with the distance of toe.Should be according to the performance requirement of the change of temperature, site contour and film during laying
Rational dilatation amount is reserved, seam, the direction of overlap joint and position should be reasonable, reduce seam stress, it is to avoid weld seam occurs
At the position of stress concentration.
The first film up-protective layer 7 is laid on first impervious barrier 6, the first film up-protective layer 7 is not less than using grammes per square metre
600g/m2Filament nonwoven geotextiles, geotextiles are 75mm ± 15mm using suture connected mode, the lap width for suturing connection.
Leachate site sub-collector layer 8 is laid on first film up-protective layer 7, Leachate site sub-collector layer 8 adopts the soil of 5.0-8.0mm
Work composite drainage network, the web-roll core of the soil engineering composite drainage network is the earthwork grid of 5.0-8.0mm, and the upper and lower of web-roll core covers
The grammes per square metre for having filament nonwoven geotextiles, filament nonwoven geotextiles is not less than 200g/m2.The top of soil engineering composite drainage network should anchor
In anchoring groove above side slope, material is laid downwards along slope, must ensure that the drainage direction of material is consistent with water (flow) direction, and one
As directly longitudinally lay along slope, avoid being overlapped in width as far as possible during installation.Adjacent two panels must guarantee geotechnique when being overlapped
The overlapping widths of complex are not less than 75 mm ± 15 mm.On lateral slope geonet is tied up every 1.5m, anchoring groove
Interior to be tied up every 150mm, in landfill yard reservoir area bottom, two abutted seams are tied up every 300 mm.In geocomposite
Geonet application white plastic button is tied up, convenient to check, unusable metal objects.Soil engineering composite drainage network is tied up after finishing,
Geotextiles in soil engineering composite drainage network are sutured.Using overlap joint, upper strata must be stitched together, also may be used geotextiles bottom
It is hot sticky.Before suturing or be hot sticky, geotextiles will at least overlap 100mm.Leachate site can be after filament nonwoven geotextiles be filtered
Web-roll core is flowed into, laterally quick guide is gone out.In case Leachate site guide is not smooth when Leachate site dominates fluid layer generation silting.Meanwhile, soil
The web-roll core of work composite drainage network has certain longitudinal tensile strength, can to greatest extent ensure the steady of landfill site seepage prevention structure
It is qualitative.
The main collecting layer 9 of Leachate site is laid on Leachate site sub-collector layer 8, the main collecting layer 9 of Leachate site is using thick not less than 300mm
Cobble or gravel, level matches somebody with somebody 20-50mm.Specific embodiment is with subsoil water guide layer 3.
Anti-filter sealing coat 10 is laid on the main collecting layer 9 of Leachate site, anti-filter sealing coat 10 is not less than 200g/m using grammes per square metre2Soil
Work filter screen, geotechnological filter screen is 75mm ± 15mm using suture connected mode, the lap width for suturing connection.
The massif slope seepage control structure is as shown in Fig. 2 sequentially including from bottom to up the second basal layer 11, subsoil water or splitting
Gap water guide layer 12, the first film lower protective layer 13, the second impervious barrier 14, the second film up-protective layer 15, the first leachate collecting layer
16。
Second basal layer 11 is the massif side slope after finishing, it is desirable to which the side slope after finishing answers smooth smooth, without sharp rock
Raised or hole depression, the situation without the other influences such as tree root branch antiseepage safety.
Subsoil water or crevice water guide layer 12 are laid on second basal layer 11, subsoil water or crevice water guide layer 12 are using thick
Spend for 5.0-8.0mm soil engineering composite drainage networks, specific embodiment is with Leachate site sub-collector layer 8.
The first film lower protective layer 13 is laid on subsoil water or crevice water guide layer 12, the first film lower protective layer 13 adopts grammes per square metre
Not less than 600g/m2Filament nonwoven geotextiles, specific embodiment is with the first film up-protective layer 7.
The second impervious barrier 14 is laid on first film lower protective layer 13, the second impervious barrier 14 is not less than 1.5mm's using thickness
Double coarse-surface geomembranes, preferably LLDPE（Linear low density polyethylene geomembrane）, specific embodiment is with the first impervious barrier 6.
The second film up-protective layer 15 is laid on second impervious barrier 14, the second film up-protective layer 15 is not less than using grammes per square metre
600g/m2Filament nonwoven geotextiles, specific embodiment is with the first film up-protective layer 7.
The first Leachate site guide layer 16 is laid on second film up-protective layer 15, the first Leachate site guide layer 16 is 5.0-
8.0mm soil engineering composite drainage networks, the web-roll core of described soil engineering composite drainage network is 5.0-8.0mm earthwork grids, and web-roll core is upper and lower
Filament nonwoven geotextiles are covered, the grammes per square metre of filament nonwoven geotextiles is not less than 200g/m2, specific embodiment is with Leachate site time receipts
Collection layer 8.
The rubbish slope seepage control structure is as shown in figure 3, sequentially include being protected under the 3rd basal layer 17, the second film from bottom to up
Sheath 18, the 3rd impervious barrier 19, tertiary membrane up-protective layer 20, the second leachate collecting layer 21.
3rd basal layer 17 is the reinforcement retaining wall after finishing, it is desirable to which the side slope after finishing answers smooth smooth, safety and stability.
The second film lower protective layer 18 is laid on 3rd basal layer 17, the second film lower protective layer 18 is using not less than 600g/m2
Filament nonwoven geotextiles, specific embodiment is with the first film up-protective layer 7.
The 3rd impervious barrier 19 is laid on second film lower protective layer 18, the 3rd impervious barrier 19 is not less than 1.5mm's using thickness
Double matte LLDPE geomembranes, preferably LLDPE（Linear low density polyethylene geomembrane）, specific embodiment is with the first antiseepage
Layer 6.
Tertiary membrane up-protective layer 20 is laid on 3rd impervious barrier 19, tertiary membrane up-protective layer 20 is not less than using grammes per square metre
600g/m2Filament nonwoven geotextiles, specific embodiment is with the first film up-protective layer 7.
The second leachate collecting layer 21 is laid on tertiary membrane up-protective layer 20, the second leachate collecting layer 21 adopts 5.0-
8.0mm soil engineering composite drainage networks, the web-roll core of described soil engineering composite drainage network is 5.0-8.0mm earthwork grids, and web-roll core is upper and lower
Filament nonwoven geotextiles are covered, the grammes per square metre of filament nonwoven geotextiles is not less than 200g/m2, specific embodiment is with Leachate site time receipts
Collection layer 8.
Embodiment described above is only the preferred embodiment lifted to absolutely prove this utility model, this utility model
Protection domain not limited to this.Equivalent substitute or change that those skilled in the art are made on the basis of this utility model
Change, within protection domain of the present utility model.Protection domain of the present utility model is defined by claims.
Claims (7)
1. it is a kind of to be applied to the landfill site seepage prevention structure that Valley Type Landfill Site sludge sump solidifies groundwork, it is characterised in that to include
Reservoir area base impervious structure, and it is respectively at the massif slope seepage control structure and rubbish side slope of reservoir area base impervious structure both sides
Leakage preventing structure, the reservoir area base impervious structure sequentially includes from bottom to up first foundation layer, the first isolation reinforcing layer, subsoil water
Guide layer, the second isolation reinforcing layer, clay protective layer, the first impervious barrier, the first film up-protective layer, Leachate site sub-collector layer, ooze
The main collecting layer of drip liquid and anti-filter sealing coat, the massif slope seepage control structure sequentially includes from bottom to up the second basal layer, underground
Water or crevice water guide layer, the first film lower protective layer, the second impervious barrier, the second film up-protective layer and the first leachate collecting layer,
The rubbish slope seepage control structure from bottom to up sequentially include the 3rd basal layer, the second film lower protective layer, the 3rd impervious barrier, the 3rd
Film up-protective layer and the second leachate collecting layer.
It is 2. according to claim 1 to be applied to the landfill site seepage prevention structure that Valley Type Landfill Site sludge sump solidifies groundwork,
Characterized in that, first impervious barrier, the second impervious barrier and the 3rd impervious barrier are linear low not less than 1.5mm using thickness
Density polyethylene geomembrane.
It is 3. according to claim 1 to be applied to the landfill site seepage prevention structure that Valley Type Landfill Site sludge sump solidifies groundwork,
Characterized in that, the first isolation reinforcing layer is using the polypropylene Woven geofabric no less than 1 layer, polypropylene Woven geofabric
Intensity be 150-500kN/m.
It is 4. according to claim 1 to be applied to the landfill site seepage prevention structure that Valley Type Landfill Site sludge sump solidifies groundwork,
Characterized in that, the second isolation reinforcing layer is using the polypropylene Woven geofabric no less than 1 layer, polypropylene Woven geofabric
Intensity be 150-500kN/m.
It is 5. according to claim 1 to be applied to the landfill site seepage prevention structure that Valley Type Landfill Site sludge sump solidifies groundwork,
Characterized in that, the Leachate site sub-collector layer adopts soil engineering composite drainage network, the web-roll core of the soil engineering composite drainage network is soil
Work grid, the length of side of earthwork grid is 5.0-8.0mm, and non-woven geotextile, nonwoven geotechnique are all covered with above and below web-roll core
The grammes per square metre of cloth is not less than 200g/m2。
It is 6. according to claim 1 to be applied to the landfill site seepage prevention structure that Valley Type Landfill Site sludge sump solidifies groundwork,
Characterized in that, the subsoil water or crevice water guide layer adopt soil engineering composite drainage network, the net of the soil engineering composite drainage network
Core is earthwork grid, and the length of side of earthwork grid is 5.0-8.0mm, and non-woven geotextile, nothing are all covered with above and below web-roll core
The grammes per square metre for spinning geotextiles is not less than 200g/m2。
It is 7. according to claim 1 to be applied to the landfill site seepage prevention structure that Valley Type Landfill Site sludge sump solidifies groundwork,
Characterized in that, the first leachate collecting layer and the second leachate collecting layer adopt soil engineering composite drainage network, the soil
The web-roll core of work composite drainage network is earthwork grid, and the length of side of earthwork grid is 5.0-8.0mm, is covered above and below web-roll core
The grammes per square metre for having non-woven geotextile, non-woven geotextile is not less than 200g/m2。
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621161947.1U CN206128142U (en) | 2016-10-25 | 2016-10-25 | Be applied to landfill yard seepage prevention structure of mountain valley type landfill yard sludge sump solidification back ground |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621161947.1U CN206128142U (en) | 2016-10-25 | 2016-10-25 | Be applied to landfill yard seepage prevention structure of mountain valley type landfill yard sludge sump solidification back ground |
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| CN206128142U true CN206128142U (en) | 2017-04-26 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110318757A (en) * | 2019-05-17 | 2019-10-11 | 昌鑫生态科技(陕西)有限公司 | Pit stemming operation technology |
| CN115180664A (en) * | 2022-07-08 | 2022-10-14 | 温州市环境发展有限公司 | Leachate seepage prevention, collection, monitoring and metering system and fly ash landfill |
-
2016
- 2016-10-25 CN CN201621161947.1U patent/CN206128142U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110318757A (en) * | 2019-05-17 | 2019-10-11 | 昌鑫生态科技(陕西)有限公司 | Pit stemming operation technology |
| CN115180664A (en) * | 2022-07-08 | 2022-10-14 | 温州市环境发展有限公司 | Leachate seepage prevention, collection, monitoring and metering system and fly ash landfill |
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