CN210288489U - Refuse landfill based on coal gangue - Google Patents
Refuse landfill based on coal gangue Download PDFInfo
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- CN210288489U CN210288489U CN201920876339.6U CN201920876339U CN210288489U CN 210288489 U CN210288489 U CN 210288489U CN 201920876339 U CN201920876339 U CN 201920876339U CN 210288489 U CN210288489 U CN 210288489U
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Abstract
The utility model discloses an use rubbish landfill yard of gangue as basis, include the rubbish foundation ditch of digging out on the coal gangue yard, wherein the interval is equipped with a plurality of filling holes in the lower part basic unit of rubbish foundation ditch, has poured into grout in the hole, is equipped with the clay layer on the inner wall of rubbish foundation ditch, is equipped with the barrier layer on the clay layer, is equipped with waterlogging caused by excessive rainfall water diversion layer on the barrier layer, is equipped with the reversed filtration layer on waterlogging caused by excessive rainfall water diversion layer, is equipped with the waterlogging caused by excessive rainfall passageway in the bottom of waterlogging caused by excessive rainfall water diversion layer. The coal gangue is a byproduct in the coal mining process, and due to the technical reason at that time, the coal gangue is discarded at the edge of a city to form a gangue dump, so that the gangue dump is selected as a refuse dump, the land acquisition cost is greatly reduced, and the secondary pollution to a central city is also reduced.
Description
Technical Field
The utility model relates to a refuse dump, especially a refuse landfill based on gangue.
Background
At present, municipal domestic refuse landfill sites are built around cities, a refuse pit is dug in a mountain in the existing refuse landfill sites, the refuse pit is finally used for landfill of refuse in an administrative area, so that the refuse pit occupies a large area, the pollution of odor and liquid to the surrounding environment is serious, and the land acquisition cost is high, however, some existing coal gangue sites are basically in a waste state, if the existing coal gangue sites can be used as refuse sites, the construction cost can be greatly reduced, the foundations of the coal gangue sites are loose, the coal gangue is easy to spontaneously combust, and the like, and further the existing refuse landfill sites cannot be built in the coal gangue sites.
SUMMERY OF THE UTILITY MODEL
The technical task of the utility model is to provide a refuse landfill based on coal gangue to the deficiency of the prior art.
The utility model provides a technical scheme that its technical problem adopted is: a refuse landfill based on coal gangue comprises a refuse foundation pit dug on a coal gangue yard, wherein a plurality of filling holes are formed in a lower base layer of the refuse foundation pit, cement paste is filled in the filling holes under pressure, a clay layer is arranged on the inner wall of the refuse foundation pit, an impermeable layer is arranged on the clay layer, a leachate diversion layer is arranged on the impermeable layer, a reverse filtration layer is arranged on the leachate diversion layer, and a leachate channel is arranged at the bottom of the leachate diversion layer.
Further improvement: the anti-seepage layer is composed of a waterproof layer and two protective layers, and the waterproof layer is located between the two protective layers.
Further improvement: the waterproof layer is composed of at least two layers of waterproof films, and the thickness of each layer of waterproof film is 1.8-2.5 mm.
Further improvement: the thickness of the clay layer is 900-1200 mm.
Further improvement: and a reverse filtering layer is arranged between the inner wall of the garbage pit and the clay layer.
The utility model has the advantages that: firstly, because the existing coal gangue site is positioned at the edge zone of a city, the existing coal gangue site is used as a refuse site, the land acquisition cost is greatly reduced, and the secondary pollution to a central city is also reduced.
Drawings
Fig. 1 is a schematic structural distribution diagram of each layer of the present invention.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings.
As shown in the figure, the refuse landfill based on coal gangue comprises a refuse foundation pit 1 dug on a coal gangue yard, wherein a plurality of pouring holes 2 are formed in a base layer at the lower part of the refuse foundation pit 1, cement slurry is poured into the pouring holes 2, a clay layer 3 is arranged on the inner wall of the refuse foundation pit 1, an impermeable layer is arranged on the clay layer 3, a leachate diversion layer 6 is arranged on the impermeable layer, a reverse filtration layer 8 is arranged on the leachate diversion layer 6, and a leachate channel 7 is arranged at the bottom of the leachate diversion layer 6.
The anti-seepage layer consists of a waterproof layer 5 and two protective layers 4, and the waterproof layer 5 is positioned between the two protective layers 4; the waterproof layer is composed of at least two layers of waterproof films, and the thickness of each layer of waterproof film is 1.8-2.5 mm; the thickness of the clay layer is 900-1200 mm; and an inverted filter layer 8 is arranged between the inner wall of the garbage foundation pit and the clay layer.
The working principle is as follows: firstly, a plurality of pouring holes 2 are drilled in the lower portion of the garbage foundation pit 1, then cement slurry is poured into the bottom of the garbage foundation pit at high pressure through the pouring holes 2, gaps among the coal gangues are filled with the cement slurry at the moment, so that the strength of the foundation at the bottom of the garbage foundation pit 1 is enhanced, the natural condition of the coal gangues is avoided, then after the pouring holes 2 are filled with the cement slurry, the cement slurry in the pouring holes 2 is used for consolidating the coal gangues around the pouring holes into a whole, and the overall stability of the foundation of the garbage foundation pit 1 is further improved.
Because the area of occupation of rubbish foundation ditch will be far less than the area of place of whole gangue, so even pour the basis of rubbish behind the grout, when other regions in gangue place appear collapsing or when removing, also can cause the holistic offset in whole rubbish hole equally, when in order to prevent rubbish foundation ditch whole offset this moment, cause the condition that the water proof membrane damaged, consequently set up two-layer water proof membrane in the water proof layer at least to the equal thickening of thickness of every layer of water proof membrane is handled.
The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all the equivalent structures or equivalent processes that are used in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the patent protection scope of the present invention.
Claims (5)
1. The utility model provides an use refuse landfill of gangue as basis, includes the rubbish foundation ditch of digging out on the gangue field of coal, its characterized in that: the garbage foundation pit is characterized in that a plurality of pouring holes are formed in a lower base layer of the garbage foundation pit, cement paste is poured into the pouring holes, a clay layer is arranged on the inner wall of the garbage foundation pit, an impermeable layer is arranged on the clay layer, a leachate diversion layer is arranged on the impermeable layer, a reverse filtration layer is arranged on the leachate diversion layer, and a leachate channel is arranged at the bottom of the leachate diversion layer.
2. The coal refuse-based landfill according to claim 1, wherein: the anti-seepage layer is composed of a waterproof layer and two protective layers, and the waterproof layer is located between the two protective layers.
3. The coal refuse-based landfill according to claim 2, wherein: the waterproof layer is composed of at least two layers of waterproof films, and the thickness of each layer of waterproof film is 1.8-2.5 mm.
4. The coal refuse-based landfill according to claim 1, wherein: the thickness of the clay layer is 900-1200 mm.
5. The refuse landfill based on coal gangue as set forth in any one of claims 1 to 4, wherein: and a reverse filtering layer is arranged between the inner wall of the garbage foundation pit and the clay layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920876339.6U CN210288489U (en) | 2019-06-12 | 2019-06-12 | Refuse landfill based on coal gangue |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920876339.6U CN210288489U (en) | 2019-06-12 | 2019-06-12 | Refuse landfill based on coal gangue |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210288489U true CN210288489U (en) | 2020-04-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920876339.6U Active CN210288489U (en) | 2019-06-12 | 2019-06-12 | Refuse landfill based on coal gangue |
Country Status (1)
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| CN (1) | CN210288489U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111804696A (en) * | 2020-07-15 | 2020-10-23 | 中国科学院武汉岩土力学研究所 | Landfill retardation degradation type closing coverage system, and waterproof, gas-tight and pollutant degradation rate performance test device and method thereof |
-
2019
- 2019-06-12 CN CN201920876339.6U patent/CN210288489U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111804696A (en) * | 2020-07-15 | 2020-10-23 | 中国科学院武汉岩土力学研究所 | Landfill retardation degradation type closing coverage system, and waterproof, gas-tight and pollutant degradation rate performance test device and method thereof |
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