CN113369277A - Double-layer rigid landfill - Google Patents
Double-layer rigid landfill Download PDFInfo
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- CN113369277A CN113369277A CN202110702887.9A CN202110702887A CN113369277A CN 113369277 A CN113369277 A CN 113369277A CN 202110702887 A CN202110702887 A CN 202110702887A CN 113369277 A CN113369277 A CN 113369277A
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- landfill
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- warehouse
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- 239000010410 layer Substances 0.000 claims abstract description 98
- 239000011241 protective layer Substances 0.000 claims abstract description 25
- 239000011229 interlayer Substances 0.000 claims abstract description 17
- 239000000725 suspension Substances 0.000 claims description 17
- 230000007246 mechanism Effects 0.000 claims description 14
- 239000011159 matrix material Substances 0.000 claims description 5
- 239000004746 geotextile Substances 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 abstract description 7
- 239000002356 single layer Substances 0.000 abstract description 4
- 239000002699 waste material Substances 0.000 abstract description 4
- 230000008595 infiltration Effects 0.000 abstract description 2
- 238000001764 infiltration Methods 0.000 abstract description 2
- 239000002585 base Substances 0.000 description 7
- 239000000463 material Substances 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 239000011150 reinforced concrete Substances 0.000 description 3
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000002920 hazardous waste Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 229920001903 high density polyethylene Polymers 0.000 description 1
- 239000004700 high-density polyethylene Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000000575 pesticide Substances 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 235000017550 sodium carbonate Nutrition 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000009270 solid waste treatment Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B1/00—Dumping solid waste
- B09B1/004—Covering of dumping sites
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
- E02D31/002—Ground foundation measures for protecting the soil or subsoil water, e.g. preventing or counteracting oil pollution
- E02D31/006—Sealing of existing landfills, e.g. using mining techniques
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- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Laminated Bodies (AREA)
Abstract
The invention discloses a double-layer rigid landfill, which comprises a first-layer landfill and a second-layer landfill, wherein a bottom overhaul interlayer is arranged on the bottom surface of the first-layer landfill, a middle overhaul interlayer is arranged between the first-layer landfill and the second-layer landfill, and a canopy is arranged at the top of the second-layer landfill; the double-layer structure is adopted, the space utilization rate is improved, and the depth of a landfill field is increased by about 10m compared with a single layer; each layer of landfill is divided into a plurality of landfill units, waste can be classified and buried, and each landfill unit is independent; the middle maintenance interlayer between the first-layer landfill storehouse and the second-layer landfill storehouse can be used for completing the landfill work of the first-layer landfill storehouse and the maintenance of the second-layer landfill storehouse, and the space is fully utilized; the protective layer is laid on the surface of the base body and comprises an impermeable layer and a protective layer from inside to outside, so that the risk of leakage caused by infiltration of leachate is reduced, and a flow guide layer is further arranged at the bottom of the landfill unit cell.
Description
Technical Field
The invention relates to the technical field of landfill sites, in particular to a double-layer rigid landfill site.
Background
At present, the landfill treatment mode is mostly adopted in the industrial solid waste treatment of China, the landfill treatment is divided into rigid landfill treatment and flexible landfill treatment, along with the stricter and stricter environmental protection policies of China, the rigid landfill is used as a landfill treatment mode which is more environment-friendly than the flexible landfill, and the rigid landfill has greater advantages in the aspects of environmental protection and risk avoidance compared with the flexibility. The rigid landfill has the advantages of less restriction on geological conditions, less difficulty in leakage pollution control, less requirement on the indexes of the waste materials entering the landfill, less difficulty in later management, benefit for recycling, low pretreatment requirement, low construction difficulty and low operation management requirement, and can play a role in temporary storage after the utilization technology is solved. In order to improve the disposal capability of the solid center on the waste salt generated by the flue gas washing in the incineration process of the hazardous waste through a triple-effect evaporation facility, the inorganic hazardous waste which does not have the recycling value and can not enter a flexible landfill for disposal, and is generated in the industries of pesticide, coal chemical industry, soda ash industry, chlor-alkali industry, printing and dyeing industry, information industry and the like, the rigid landfill is required to be adopted.
The rigid landfill is still in a exploration and pilot stage, a peripheral closed space is formed mainly by building a reinforced concrete structure, then the lining adopts an anti-seepage structure, the existing rigid landfill adopts a single-layer structure, the occupied area of the rigid landfill is large, and the land utilization rate is low.
Disclosure of Invention
The invention aims to provide a double-layer rigid landfill site aiming at the defects in the prior art.
The technical scheme for solving the problems comprises the following steps: a double-layer rigid landfill comprises a first-layer landfill and a second-layer landfill, wherein a bottom overhaul interlayer is arranged on the bottom surface of the first-layer landfill, a middle overhaul interlayer is arranged between the first-layer landfill and the second-layer landfill, and a rain shed is arranged at the top of the second-layer landfill;
still be equipped with first suspension mechanism in the intermediate overhaul intermediate level, canopy bottom is equipped with the second and suspends the mechanism in midair.
Furthermore, the first-layer landfill reservoir and the second-layer landfill reservoir both comprise a base body and a protective layer.
Furthermore, the matrix comprises a plurality of landfill unit cells which are arranged in a rectangular array, and a protective layer is paved in each landfill unit cell of the matrix;
each landfill unit cell is provided with a guide exhaust pipe, the guide exhaust pipe is arranged at the bottom of the landfill unit cell, the bottom of the landfill unit cell finds a slope to the percolate guide exhaust pipe according to the slope of 1-2%, the outer end of each guide exhaust pipe is independently connected with a percolate collecting well, and the percolate collecting well is arranged in the bottom overhaul interlayer.
Furthermore, the bottom of each landfill unit cell is also provided with a flow guide layer, and the flow guide layer is arranged above the protective layer.
Further, the protective layer comprises an impermeable layer and a protective layer from inside to outside.
Furthermore, the impermeable layer is an impermeable membrane, and the protective layer is filament non-woven geotextile.
Furthermore, a first layer of hoisting area and a second layer of hoisting area are respectively arranged on two sides of the double-layer rigid landfill.
The invention has the following beneficial effects:
the invention provides a double-layer rigid landfill, which adopts a double-layer structure, improves the space utilization rate, and increases the landfill depth by about 10m compared with a single layer; each layer of landfill is divided into a plurality of landfill units, waste can be classified and buried, and each landfill unit is independent; the middle maintenance interlayer between the first-layer landfill storehouse and the second-layer landfill storehouse can be used for completing the landfill work of the first-layer landfill storehouse and the maintenance of the second-layer landfill storehouse, and the space is fully utilized; the protective layer is laid on the surface of the base body and comprises an impermeable layer and a protective layer from inside to outside, so that the risk of leakage caused by infiltration of leachate is reduced, and a flow guide layer is further arranged at the bottom of the landfill unit cell.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a cross-sectional view of a first level landfill and a second level landfill;
FIG. 3 is an enlarged view of portion A of FIG. 2;
in the figure: 1-one-layer landfill, 2-two-layer landfill, 3-bottom overhaul interlayer, 4-middle overhaul interlayer, 5-support column, 6-canopy, 7-base body, 8-protective layer, 9-impermeable layer, 10-protective layer, 11-diversion layer, 12-first suspension mechanism, 13-second suspension mechanism, 14-drainage ditch, 15-one-layer hoisting area and 16-two-layer hoisting area.
Detailed Description
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
As shown in fig. 1-3, before construction, firstly, excavating to a designed depth according to site-selection geological structure conditions and the designed depth of a landfill site, then tamping and flattening a base layer, and excavating drainage ditches on the base layer around the double-layer rigid landfill site, wherein the double-layer rigid landfill site comprises a first landfill warehouse and a second landfill warehouse, a bottom overhaul interlayer is arranged on the bottom surface of the first landfill warehouse, the height of the bottom overhaul interlayer is 2 meters, a plurality of support columns are uniformly arranged between a pit bottom and the first landfill warehouse at equal intervals to form a bottom overhaul interlayer, and the bottom overhaul interlayer is used for overhauling whether the first landfill warehouse is leaked or not; be equipped with middle maintenance intermediate layer between one deck landfill storehouse and the two-layer landfill storehouse, middle maintenance intermediate layer height 4.5 meters, the equidistance is even between one deck landfill storehouse and the two-layer landfill storehouse is equipped with a plurality of support columns, overhauls the intermediate layer in the middle of forming, two-layer landfill storehouse top is equipped with the canopy.
The one-layer landfill storehouse and the two-layer landfill storehouse respectively comprise a plurality of landfill unit cells which are arranged in a rectangular array, the specification of each landfill unit cell is 6.5m multiplied by 5.92m, the one-layer landfill storehouse and the two-layer landfill storehouse respectively comprise a base body and a protective layer, the base body is made of reinforced concrete, the protective layer is paved in each landfill unit cell of the base body and fixed on the base body through a plurality of bolts, the protective layer comprises an impermeable layer and a protective layer, the impermeable layer is arranged inside, the protective layer is arranged outside, the impermeable layer is made of 1.5mm HDPE impermeable films, the protective layer is made of long-filament non-woven geotextile, a flow guide layer is further arranged at the bottom of each landfill unit cell, the flow guide layer is arranged above the protective layer, the flow guide layer is made of 18mm soil grating drainage plates, and the flow guide layer guides and converges generated percolate.
The reinforced concrete design of the matrix should accord with GB50010, and the waterproof grade should accord with GB50108 first-grade waterproof standard.
Every landfill cell sets up a drainage guide pipe, the drainage guide pipe sets up at the landfill cell tank bottom, and the landfill cell tank bottom is according to 1% slope to leachate drainage guide pipe department and looks for the slope, and leachate collecting well is independently connected to every drainage guide pipe outer end, leachate collecting well sets up and overhauls the intermediate layer in the bottom.
A first suspension mechanism is further arranged in the middle maintenance interlayer, and a second suspension mechanism is arranged at the bottom of the canopy; the first suspension mechanism comprises a plurality of groups of suspension units, one row or one row of landfill unit cells of the landfill warehouse use one group of suspension units to load and unload materials, the second suspension mechanism comprises a plurality of groups of suspension units, one row or one row of landfill unit cells of the landfill warehouse adopt one group of suspension units to load and unload materials, the suspension units comprise rails and lifting machines, the lifting machines are arranged on the rails in a sliding mode, a plurality of rails of the first suspension mechanism are installed on the bottom surface of the landfill warehouse through a frame, and a plurality of rails of the second suspension mechanism are installed on the bottom surface of the rain shed through a frame.
One side of the double-layer rigid landfill site is provided with a first-layer hoisting area, the other side of the double-layer rigid landfill site is provided with a second-layer hoisting area, the first-layer hoisting area is used for feeding and discharging materials for the first-layer landfill warehouse, and the second-layer hoisting area is used for feeding and discharging materials for the second-layer landfill warehouse. The track of the first suspension mechanism extends to the upper part of the first layer of hoisting area, and the track of the second suspension mechanism extends to the upper part of the first layer of hoisting area.
And the upper surfaces of the first-layer landfill storehouse and the second-layer landfill storehouse are also provided with passages for personnel to walk.
The invention can reduce unit construction cost, improve the space utilization rate by 1 time and improve the cost performance by 50 percent compared with a single layer.
The above description is only a preferred embodiment of the present invention, and not intended to limit the present invention in other forms, and any person skilled in the art may apply the above modifications or changes to the equivalent embodiments with equivalent changes, without departing from the technical spirit of the present invention, and any simple modification, equivalent change and change made to the above embodiments according to the technical spirit of the present invention still belong to the protection scope of the technical spirit of the present invention.
Claims (7)
1. A double-layer rigid landfill is characterized in that: the system comprises a first-layer landfill warehouse and a second-layer landfill warehouse, wherein a bottom overhaul interlayer is arranged on the bottom surface of the first-layer landfill warehouse, a middle overhaul interlayer is arranged between the first-layer landfill warehouse and the second-layer landfill warehouse, and a rain shed is arranged at the top of the second-layer landfill warehouse;
still be equipped with first suspension mechanism in the intermediate overhaul intermediate level, canopy bottom is equipped with the second and suspends the mechanism in midair.
2. A double-deck rigid landfill as claimed in claim 1, wherein: the first-layer landfill reservoir and the second-layer landfill reservoir both comprise a base body and a protective layer.
3. A double-deck rigid landfill as claimed in claim 2, wherein: the matrix comprises a plurality of landfill unit cells which are arranged in a rectangular array, and a protective layer is paved in each landfill unit cell of the matrix;
each landfill unit cell is provided with a guide exhaust pipe, the guide exhaust pipe is arranged at the bottom of the landfill unit cell, the bottom of the landfill unit cell finds a slope to the percolate guide exhaust pipe according to the slope of 1-2%, the outer end of each guide exhaust pipe is independently connected with a percolate collecting well, and the percolate collecting well is arranged in the bottom overhaul interlayer.
4. A double-deck rigid landfill as claimed in claim 3, wherein: and a flow guide layer is also arranged at the bottom of each landfill unit cell and is arranged above the protective layer.
5. A double-deck rigid landfill site as set forth in any one of claims 1-4, wherein: the protective layer comprises an impermeable layer and a protective layer from inside to outside.
6. A double-deck rigid landfill as claimed in claim 5, wherein: the anti-seepage layer is made of an anti-seepage film, and the protective layer is made of filament non-woven geotextile.
7. A double-deck rigid landfill as claimed in claim 1, wherein: and a first-layer hoisting area and a second-layer hoisting area are respectively arranged on two sides of the double-layer rigid landfill.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110702887.9A CN113369277A (en) | 2021-06-24 | 2021-06-24 | Double-layer rigid landfill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110702887.9A CN113369277A (en) | 2021-06-24 | 2021-06-24 | Double-layer rigid landfill |
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| Publication Number | Publication Date |
|---|---|
| CN113369277A true CN113369277A (en) | 2021-09-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110702887.9A Pending CN113369277A (en) | 2021-06-24 | 2021-06-24 | Double-layer rigid landfill |
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| CN (1) | CN113369277A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110586606A (en) * | 2019-09-18 | 2019-12-20 | 中国电建集团贵阳勘测设计研究院有限公司 | Dangerous waste rigid landfill pool |
| CN112170440A (en) * | 2020-09-09 | 2021-01-05 | 中国电建集团贵阳勘测设计研究院有限公司 | Rigid landfill leachate gravity flow drainage and air guide structure |
| CN212477839U (en) * | 2020-05-29 | 2021-02-05 | 苏州上善环境科技有限公司 | Landfill treatment system |
| CN112974461A (en) * | 2019-12-17 | 2021-06-18 | 中国电建集团华东勘测设计研究院有限公司 | Retrievable dangerous waste rigid landfill system and operation method |
-
2021
- 2021-06-24 CN CN202110702887.9A patent/CN113369277A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110586606A (en) * | 2019-09-18 | 2019-12-20 | 中国电建集团贵阳勘测设计研究院有限公司 | Dangerous waste rigid landfill pool |
| CN112974461A (en) * | 2019-12-17 | 2021-06-18 | 中国电建集团华东勘测设计研究院有限公司 | Retrievable dangerous waste rigid landfill system and operation method |
| CN212477839U (en) * | 2020-05-29 | 2021-02-05 | 苏州上善环境科技有限公司 | Landfill treatment system |
| CN112170440A (en) * | 2020-09-09 | 2021-01-05 | 中国电建集团贵阳勘测设计研究院有限公司 | Rigid landfill leachate gravity flow drainage and air guide structure |
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| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Fan Hongjie Inventor after: Yue Xilong Inventor after: Liu Xin Inventor after: Xiao Shijian Inventor after: Zhu Xuefeng Inventor after: Lin Wei Inventor after: Liang Guobin Inventor before: Fan Hongjie Inventor before: Yue Xilong Inventor before: Liu Xin Inventor before: Xiao Shijian Inventor before: Zhu Xuefeng Inventor before: Lin Wei Inventor before: Liang Guobin |
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Application publication date: 20210910 |