CN207597445U - Landfill yard covers system - Google Patents
Landfill yard covers system Download PDFInfo
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- CN207597445U CN207597445U CN201721513323.6U CN201721513323U CN207597445U CN 207597445 U CN207597445 U CN 207597445U CN 201721513323 U CN201721513323 U CN 201721513323U CN 207597445 U CN207597445 U CN 207597445U
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- landfill yard
- layer
- landfill
- boulder bed
- covers system
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Abstract
The utility model provides a kind of landfill yard covering system, including：The first boulder bed, geogrids layer, argillic horizon, long filament geotextile layer, matte HDPE geomembranes, composite earthwork draining stratum reticulare, the second boulder bed, the vegetable layer set from bottom to top.Landfill yard provided by the utility model covers system, and barrier performance enhancing saves clay, reduces the waste of garbage loading embeading storage capacity；It reduces rainwater and other secondary waters is penetrated into junk-heap body, achieve the purpose that reduce landfill leachate；It can prevent impervious barrier from crack, displacement occurs, control landfill yard stench, which is distributed, in an organized way to be discharged and collect from landfill yard top with fuel gas, achievees the purpose that control pollution and comprehensive utilization；A surface that can carry out beautification of landscape is provided, the growth for vegetation provides soil, convenient for filling the recycling in soil.
Description
Technical field
The utility model is related to foundation structure protective device technical field, specifically, being a kind of landfill yard covering system.
Background technology
With the development and the improvement of people's living standards of society, people are also higher and higher to the consciousness of environmental protection.But
Meanwhile social development causes daily and has a large amount of rubbish to generate, this just brings detrimental effect to environmental protection.At present, it is right
The mode of landfill is mainly taken in the processing of rubbish.
After the covering system of refuse landfill refers to that garbage loading embeading is completed, in the covering layer system that its top is laid with.
It is the final stage of landfill yard operation, while is also the stage of most critical.The covering system of refuse landfill is provided for rubbish
Covering protection, while be also landfill place land use and the basis restored.And the quality for covering system directly affects landfill
Whether rubbish pollutes the environment.
Existing garbage loading embeading covering system mainly includes impervious barrier, soil layer and nutrition soil layer are supported in covering.And it this covers
Cap rock easily generates miniature crack after for a long time by the circulating effect to drench with rain with solarization, meanwhile, the differential settlement of rubbish body,
It can aggravate the density and width in crack, clay blanket is made to be also easy to produce crack after long-term use, so as to cause being filled out in rubbish body
Bury the risk that gas is revealed.And the friction coefficient of existing impervious barrier is smaller, and relative displacement is easily generated at this layer
Phenomenon.
Utility model content
The technical problem to be solved by the present invention is to provide a kind of landfill yards to cover system, avoids generating crack, displacement.
In order to solve the above technical problems, the utility model provides a kind of landfill yard covering system, including：It sets from bottom to top
The first boulder bed for putting, geogrids layer, argillic horizon, long filament geotextile layer, matte HDPE geomembranes, composite earthwork drainage network
Layer, the second boulder bed, vegetable layer.
Further, the first cobble layer thickness is 35~45cm.
Further, the second cobble layer thickness is 15~30cm.
Further, the long filament geotextile layer is the anti-ageing non-woven geotextiles of 400~700g/ of specification ㎡.
Further, the long filament geotextile layer is the anti-ageing non-woven geotextiles of specification 550g/ ㎡.
Further, first boulder bed is made of the cobble that grain size is 20~40mm.
Further, second boulder bed is made of the cobble that grain size is 15~35mm.
Further, the vegetation layer thickness is 60~75cm.
Further, the matte HDPE geomembranes are double matte HDPE geomembranes.
Further, double matte HDPE geotechnique film thicknesses are 0.5~3mm.
Landfill yard provided by the utility model covers system, and barrier performance enhancing saves clay, reduces garbage loading embeading storage capacity
Waste；It reduces rainwater and other secondary waters is penetrated into junk-heap body, achieve the purpose that reduce landfill leachate；It can prevent antiseepage
Crack, displacement occur for layer, and control landfill yard stench, which is distributed, in an organized way to be discharged and collect from landfill yard top with fuel gas, is reached
To the purpose of control pollution and comprehensive utilization；A surface that can carry out beautification of landscape is provided, the growth for vegetation provides soil
Earth, convenient for filling the recycling in soil.
Description of the drawings
Fig. 1 is the structure diagram of the utility model landfill yard covering system embodiment one；
Fig. 2 is the structure diagram of the utility model landfill yard covering system embodiment two.
In figure, 1. first boulder beds, 2. direction earthwork grille layers, 3. argillic horizons, 4. long filament geotextile layers, 5. matte HDPE
Geomembrane, 6. composite earthwork draining stratum reticulares, 7. second boulder beds, 8. vegetable layers, 9. bentonite waterproof blanket.
Specific embodiment
The utility model is described in further detail in the following with reference to the drawings and specific embodiments, so that those skilled in the art
The utility model may be better understood and can be practiced, but illustrated embodiment is not as the restriction to the utility model.
Embodiment one：
A kind of landfill yard covers system, as shown in Figure 1, including：The first boulder bed 1 for setting from bottom to top, two-way geotechnique
Grid layer 2, argillic horizon 3, long filament geotextile layer 4, matte HDPE geomembranes 5, composite earthwork draining stratum reticulare 6, the second boulder bed 7,
Vegetable layer 8.
Wherein, the first boulder bed 1 is used for the top-most-surface plane air guide in junk-heap body, by the cobble group that grain size is 20~40mm
Into, it is preferable that the first boulder bed 1 is made of the cobble of 25~35mm of grain size.First boulder bed, 1 thickness is 35~45cm, preferably
Ground, 1 thickness of the first boulder bed are 40cm.It can also be replaced using composite earthwork drainage network, more than steel wire rack specification 5mm.
In order to avoid bringing collapse phenomenon due to rubbish settles, in the present embodiment, in matte HDPE geomembranes 5 and the first ovum
Geogrids layer 2, argillic horizon 3 and long filament geotextile layer 4 are equipped between rock layers 1, long filament geotextiles have the function of good mechanics,
Good water permeability, and can be anticorrosive, it is anti-aging, there is isolation, anti-filter, draining, protection, firm, reinforcement etc., adapt to bumps
Uneven base can resist construction external force and destroy, and creep is small, remains to keep original function under long duration load., TGXG is
The two-dimensional mesh trellis formed with high molecular polymers such as polypropylene, polyvinyl chloride through thermoplastic or molding or three with certain altitude
Tie up stereoscopic grid screen.Stretched formation has rectangular or rectangle polymer web material, draw direction when being manufactured by it
Difference can be two kinds of simple tension and biaxial tension.It is through squeeze make polymer plate (raw material be mostly polypropylene or
High density polyethylene (HDPE)) on punching, then implement orientation stretching in a heated condition.Simple tension grid is only along panel length direction
Stretching is made；Two-way stretching grating is then to continue with again stretching the grid of simple tension in the direction vertical with its length and be made.
Direction earthwork grille is selected in the present embodiment.In the present embodiment, the characteristic of the high-tensile of geotextiles is utilized, can constrain
The generation transversely deforming of argillic horizon 3, so as to avoid generating miniature crack；And using TGXG high-strength characteristic can enhance it is viscous
The stability of soil layer 3 is not easy to settle with the differential settlement of rubbish body, can prevent crack, avoid landfill gas
The problem of revealing.Long filament geotextile layer 4 is the anti-ageing non-woven geotextiles of 400~700g/ of specification ㎡, it is preferable that long filament geotechnique
Layer of cloth 4 is specification 550g/ ㎡.
Composite earthwork draining stratum reticulare 6 is drainage blanket, and steel wire rack specification is in more than 5mm, when the storm seepage amount through upper strata is big
When, by 5 draining of composite, water-drain stratum reticulare, prevent the water suction saturation of vegetable layer 8 and liquefy, cause to come down.Composite earthwork draining stratum reticulare 6
It should be connected with Huan Chang gutters at different levels, it is over-the-counter so that seepage water is discharged；Matte HDPE geomembranes 5 are separation layer, and isolation is up and down
Gaseous state, the liquid of layer exchange, and matte film are selected to increase friction coefficient, in the present embodiment, matte HDPE geomembranes 5 are selected
Double matte HDPE geomembranes.5 thickness of matte HDPE geomembranes is 0.5~3mm, it is preferable that is advisable with 1mm.
Second boulder bed, 7 thickness is 15~30cm, it is preferable that its thickness is 20cm.Second boulder bed 7 by grain size for 15~
The cobble composition of 35mm.
The grass seeds and shrub suitable for local climate condition are selected in 8 surface of vegetable layer, and thickness is 60~75cm.
Embodiment two：
The difference lies in embodiment two, geotechnological lattice are substituted using bentonite waterproof blanket to embodiment two with embodiment one
Grid layer, argillic horizon and long filament geotextile layer.Bentonite waterproof blanket is filled in special compound by the sodium bentonite of high-expansion
Between geotextiles and non-woven fabrics, the bentonite anti-leakage pad made of needle point method can form many small fibre spaces, make bentonite
Particle cannot be flowed to a direction, formed uniformly highdensity gluey waterproof layer when meeting water in pad, effectively prevented water
Leakage.As shown in Fig. 2, landfill yard covering system includes the first boulder bed 1, bentonite waterproof blanket 9, the matte that set from bottom to top
HDPE geomembranes 5, composite earthwork draining stratum reticulare 6, the second boulder bed 7, vegetable layer 8.
Wherein, bentonite waterproof blanket 9 is auxiliary separation layer, can also play the role of protecting matte HDPE geomembranes 5.Rule
Lattice are 3000~5000g/ ㎡, it is preferable that selection 4800g/ ㎡.
The protection scope of the utility model is not limited thereto.Those skilled in the art institute on the basis of the utility model
The equivalent substitute of work or transformation, are within the protection scope of the utility model.The scope of protection of the utility model will with right
It asks subject to book.
Claims (10)
1. a kind of landfill yard covers system, which is characterized in that including：The first boulder bed for setting from bottom to top, geogrids layer,
Argillic horizon, long filament geotextile layer, matte HDPE geomembranes, composite earthwork draining stratum reticulare, the second boulder bed, vegetable layer.
2. landfill yard as described in claim 1 covers system, which is characterized in that the first cobble layer thickness for 35~
45cm。
3. landfill yard as described in claim 1 covers system, which is characterized in that the second cobble layer thickness for 15~
30cm。
4. landfill yard as described in claim 1 covers system, which is characterized in that the long filament geotextile layer for specification 400~
The anti-ageing non-woven geotextiles of 700g/ ㎡.
5. landfill yard as claimed in claim 4 covers system, which is characterized in that the long filament geotextile layer is specification 550g/
The anti-ageing non-woven geotextiles of ㎡.
6. landfill yard as described in claim 1 covers system, which is characterized in that first boulder bed by grain size for 20~
The cobble composition of 40mm.
7. landfill yard as described in claim 1 covers system, which is characterized in that second boulder bed by grain size for 15~
The cobble composition of 35mm.
8. landfill yard as described in claim 1 covers system, which is characterized in that the vegetation layer thickness is 60~75cm.
9. the landfill yard covering system as described in claim 1~8 is any, which is characterized in that the matte HDPE geomembranes are
Double matte HDPE geomembranes.
10. landfill yard as claimed in claim 9 covers system, which is characterized in that double matte HDPE geotechnique film thicknesses are
0.5~3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721513323.6U CN207597445U (en) | 2017-11-13 | 2017-11-13 | Landfill yard covers system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721513323.6U CN207597445U (en) | 2017-11-13 | 2017-11-13 | Landfill yard covers system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207597445U true CN207597445U (en) | 2018-07-10 |
Family
ID=62759261
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721513323.6U Active CN207597445U (en) | 2017-11-13 | 2017-11-13 | Landfill yard covers system |
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| CN (1) | CN207597445U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109162457A (en) * | 2018-08-16 | 2019-01-08 | 浙江普天园林建筑发展有限公司 | A kind of compound Sustainable Landscape method of construction |
| CN113305124A (en) * | 2021-06-24 | 2021-08-27 | 沈阳工业大学 | Daily covering layer material for household garbage landfill and use method |
-
2017
- 2017-11-13 CN CN201721513323.6U patent/CN207597445U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109162457A (en) * | 2018-08-16 | 2019-01-08 | 浙江普天园林建筑发展有限公司 | A kind of compound Sustainable Landscape method of construction |
| CN113305124A (en) * | 2021-06-24 | 2021-08-27 | 沈阳工业大学 | Daily covering layer material for household garbage landfill and use method |
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