CN214329003U - Anti-seepage structure for refuse backfilling field - Google Patents
Anti-seepage structure for refuse backfilling field Download PDFInfo
- Publication number
- CN214329003U CN214329003U CN202120408782.8U CN202120408782U CN214329003U CN 214329003 U CN214329003 U CN 214329003U CN 202120408782 U CN202120408782 U CN 202120408782U CN 214329003 U CN214329003 U CN 214329003U
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- Prior art keywords
- seepage
- foundation pit
- refuse
- curtain
- drain pipe
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- 239000010813 municipal solid waste Substances 0.000 claims abstract description 45
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 37
- 239000002689 soil Substances 0.000 claims abstract description 35
- 230000002265 prevention Effects 0.000 claims abstract description 16
- 239000004744 fabric Substances 0.000 claims description 24
- 230000001681 protective effect Effects 0.000 claims description 19
- 239000012528 membrane Substances 0.000 claims description 14
- 239000011241 protective layer Substances 0.000 claims description 12
- 239000007788 liquid Substances 0.000 claims description 9
- 238000001914 filtration Methods 0.000 claims description 8
- 238000007789 sealing Methods 0.000 claims description 7
- 239000011248 coating agent Substances 0.000 claims description 6
- 238000000576 coating method Methods 0.000 claims description 6
- 239000010410 layer Substances 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- 230000000694 effects Effects 0.000 abstract description 8
- 238000000034 method Methods 0.000 abstract description 3
- 239000000149 chemical water pollutant Substances 0.000 description 24
- 101150054854 POU1F1 gene Proteins 0.000 description 22
- 239000003864 humus Substances 0.000 description 6
- 238000010276 construction Methods 0.000 description 4
- 239000000126 substance Substances 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 239000006148 magnetic separator Substances 0.000 description 1
- 239000010847 non-recyclable waste Substances 0.000 description 1
- 238000004181 pedogenesis Methods 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000003516 soil conditioner Substances 0.000 description 1
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- Processing Of Solid Wastes (AREA)
Abstract
The utility model relates to a rubbish backfill place seepage prevention structure relates to the field of rubbish backfill, and it includes the foundation ditch, and the outside of foundation ditch is provided with the prevention of seepage curtain, and the prevention of seepage curtain is formed by concrete placement, and the prevention of seepage curtain cover is established in the outside of foundation ditch, and the whole of prevention of seepage curtain passes the aquifer, and the bottom of prevention of seepage curtain is buried underground in the cohesive soil stratum, and the top of prevention of seepage curtain flushes with ground, and the inboard of foundation ditch has laid the geomembrane. The application has the effect of reducing the possibility that percolate in the stale refuse flows into soil and pollutes the soil and water sources around the foundation pit in the process of treating the stale refuse.
Description
Technical Field
The application relates to the field of rubbish backfill, in particular to an anti-seepage structure for a rubbish backfill site.
Background
The garbage backfill mainly aims at the garbage piled for many years, namely stale garbage. Under the action of natural conditions, the stale refuse undergoes various complex conversion processes, so that organic matters form a relatively stable structure.
The stale refuse mainly comprises magnetic substances, humus, light substances, construction refuse and the like, wherein the magnetic substances can be screened and recycled by a magnetic separator; the light materials mainly comprise paper, plastics and the like, and the light materials after being sorted are conveyed to a household garbage incineration plant to be mixed with fresh garbage for incineration, so that the heat value of garbage entering the incinerator of the incineration plant can be greatly improved; after the sorted humus soil is backfilled into the foundation pit in a small amount, the water content of the rest part is adjusted, and the humus soil is detected to meet the requirements and then used as landscaping soil and used as a soil conditioner to effectively improve the water storage capacity of the soil; and the construction waste and other non-recyclable waste are mostly used for directly backfilling the foundation pit.
In view of the above-mentioned related art, the inventor believes that a large amount of leachate seeps out of the stale refuse and flows into the soil during sorting and backfilling the stale refuse, thereby contaminating the surrounding soil and water sources.
SUMMERY OF THE UTILITY MODEL
In order to reduce the possibility that percolate in the stale refuse flows into soil and pollutes soil and water sources around a foundation pit in the process of treating the stale refuse, the application provides an anti-seepage structure for the refuse backfilling field.
The application provides a rubbish backfill place seepage prevention structure adopts following technical scheme:
an impervious structure of a refuse backfilling field comprises a foundation pit, wherein an impervious curtain is arranged on the outer side of the foundation pit and formed by pouring concrete, the impervious curtain is sleeved on the outer side of the foundation pit, the whole impervious curtain penetrates through a water-bearing stratum, the bottom end of the impervious curtain is embedded in a cohesive soil stratum, and the top end of the impervious curtain is flush with the ground.
By adopting the technical scheme, the anti-seepage curtain is arranged on the outer side of the foundation pit, and the whole anti-seepage curtain penetrates through the aquifer, so that the bottom end of the anti-seepage curtain is embedded in the cohesive soil stratum, the anti-seepage curtain can play a role in intercepting the garbage percolate seeped out by the stale garbage in the foundation pit, the possibility that the garbage percolate in the foundation pit flows to the outer side of the anti-seepage curtain is reduced, and the possibility that the percolate in the stale garbage flows into the soil and pollutes the soil and the water source at the periphery of the foundation pit is reduced.
Optionally, a geomembrane is laid on the inner side of the foundation pit.
Through adopting above-mentioned technical scheme, lay the geomembrane in the inboard of foundation ditch, pour building rubbish and humus into the foundation ditch after, the geomembrane can play the interception effect to the landfill leachate that building rubbish and humus oozed in the foundation ditch to reduce the possibility that the landfill leachate flows into soil, further reduce the infiltration liquid among the stale refuse and flow into soil and pollute the possibility of the peripheral soil of foundation ditch and water source.
Optionally, the bottom of foundation ditch is the concave surface form, and the opening upwards, and the bottom intercommunication of foundation ditch has the drain pipe, and the other end and the ground intercommunication of drain pipe.
By adopting the technical scheme, the bottom surface of the foundation pit is arranged to be concave, then the bottom end of the foundation pit is communicated with the drain pipe, the construction waste and the landfill leachate seeped from the humus in the foundation pit slide to the middle of the bottom surface of the foundation pit along the bottom surface of the foundation pit, and the landfill leachate can flow into the drain pipe; the end of the drain pipe, which is far away from the bottom end of the foundation pit, is communicated with the ground, so that an operator can discharge the landfill leachate from the end, which is located on the ground, of the drain pipe.
Optionally, a leachate submersible pump is arranged in the drainage pipe, a water inlet of the leachate submersible pump is communicated with the drainage pipe, and a water outlet of the leachate submersible pump is communicated with the ground.
Through adopting above-mentioned technical scheme, when the landfill leachate in the drain pipe of discharging, the water inlet of filtration liquid immersible pump inhales landfill leachate to carry to ground through the delivery port, thereby collect and purify landfill leachate, thereby discharge it again after reaching emission standard.
Optionally, a sealing plate is arranged at one end cover of the drain pipe on the ground, and the sealing plate is detachably connected with the drain pipe.
Through adopting above-mentioned technical scheme, be equipped with the closing plate through the end cover that is located ground at the drain pipe, when raining, the closing plate can be with the rainwater interception in the drain pipe outside to avoid the rainwater to flow into the drain pipe from the top of drain pipe in, lead to water level rising in the drain pipe and pour into the foundation ditch backward.
Optionally, one side of the geomembrane far away from the foundation pit is fixedly provided with first protective cloth, and the first protective cloth is made of flexible materials.
Through adopting above-mentioned technical scheme, because the main of backfilling the foundation ditch is the building rubbish, the fixed first protection cloth that is provided with flexible material and makes in one side that the geomembrane keeps away from the foundation ditch, first protection cloth can play the effect of buffering to building rubbish to play the effect of protection to the geomembrane, reduce the possibility that building rubbish's sharp-pointed portion punctures the geomembrane.
Optionally, the top end cover of the foundation pit is provided with a protective layer, the protective layer is horizontally laid, and an anti-seepage film is fixedly arranged in the protective layer.
Through adopting above-mentioned technical scheme, the top lid at the foundation ditch is equipped with the inoxidizing coating to be provided with prevention of seepage membrane in the inoxidizing coating, the inoxidizing coating can play the effect of interception to the rainwater when raining, thereby reduces the possibility that the rainwater flowed into the foundation ditch, thereby makes the rainwater can not change landfill leachate into and pollutes the peripheral soil of foundation ditch and water supply.
Optionally, the protective layer further comprises a second protective cloth, and the second protective cloth is provided in two layers and is respectively and fixedly connected with the top surface and the bottom surface of the impermeable membrane.
Through adopting above-mentioned technical scheme, set up the second protection cloth into two-layer to with two-layer second protection cloth respectively with the top surface and the bottom surface fixed connection of preventing osmosis membrane, when the pedestrian walked or the vehicle drove in the foundation ditch top, the second that is located prevention osmosis membrane top surface protects the effect that can play the protection to preventing osmosis membrane, reduce the prevention osmosis membrane and take place damaged possibility, the second that is located prevention osmosis membrane bottom surface simultaneously protects the cloth setting between building rubbish and prevention osmosis membrane, thereby play and reduce the effect that building rubbish damaged to preventing osmosis membrane.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the seepage-proof curtain is arranged on the outer side of the foundation pit and can intercept garbage percolate seeped out by the stale garbage in the foundation pit, so that the possibility that the percolate in the stale garbage flows into soil and pollutes soil and water sources around the foundation pit is reduced;
2. the bottom end of the foundation pit is communicated with a drain pipe, and a leachate submersible pump is arranged in the drain pipe, so that the landfill leachate in the drain pipe is conveyed to the ground, and is purified;
3. the protective layer is arranged at the top end of the foundation pit, the protective layer can intercept rainwater in the rainy period, and the possibility that the rainwater flows into the foundation pit is reduced, so that the rainwater cannot be converted into landfill leachate to pollute soil and water sources around the foundation pit.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of the present application;
fig. 2 is a sectional view intended to show the geomembrane.
Description of reference numerals: 1. a foundation pit; 11. a geomembrane; 12. a first protective cloth; 13. a drain pipe; 131. a connecting portion; 132. a water storage part; 133. a collecting section; 1331. a sealing plate; 2. a leachate submersible pump; 21. a collection pipe; 3. an impervious curtain; 4. a protective layer; 41. an impermeable membrane; 42. a second protective cloth; 5. soil; 51. an aqueous layer; 52. a cohesive soil formation.
Detailed Description
The present application is described in further detail below with reference to figures 1-2.
The embodiment of the application discloses rubbish backfill place seepage prevention structure. Referring to fig. 1 and 2, the impervious structure of the refuse backfilling field comprises a foundation pit 1, an impervious curtain 3 and a protective layer 4, soil 5 comprises a aquifer 51 and a cohesive soil stratum 52, the foundation pit 1 is arranged in the aquifer 51 and is located below the ground surface, the impervious curtain 3 is arranged on the outer side of the foundation pit 1, and the protective layer 4 covers the top end of the foundation pit 1.
The backfill garbage is poured into the foundation pit 1, the garbage percolate in the backfill garbage permeates into the soil 5 along the pit wall of the foundation pit 1, and when the garbage percolate diffuses to the anti-seepage curtain 3 in the soil 5, the anti-seepage curtain 3 can intercept the garbage percolate, so that the garbage percolate is prevented from further polluting the soil 5 and a water source. After the backfill garbage is poured into the foundation pit 1 and rains, the protective layer 4 covered at the top end of the foundation pit 1 can intercept the rainwater, so that the possibility that the rainwater flows into the foundation pit 1 is reduced, and the possibility that the rainwater is converted into garbage leachate is reduced.
Referring to fig. 2, the cross section of the foundation pit 1 is circular, a geomembrane 11 is laid on the inner side of the foundation pit 1, a first protective cloth 12 is fixedly arranged on one side of the geomembrane 11 far away from the foundation pit 1, the first protective cloth 12 is made of flexible material, the bottom surface of the foundation pit 1 is concave, a drain pipe 13 is communicated with the center of the bottom of the foundation pit 1, the drain pipe 13 comprises a connecting part 131, water storage part 132 and collection portion 133, connecting portion 131 and the equal vertical setting of collection portion 133, water storage part 132 sets up between connecting portion 131 and collection portion 133 and the level sets up, the top and the center intercommunication in foundation ditch 1 bottom of connecting portion 131, the other end and water storage part 132 intercommunication, the one end that connecting portion 131 were kept away from to water storage part 132 and the bottom intercommunication of collection portion 133, collection portion 133 sets up between impervious curtain 3 and foundation ditch 1, the top of collection portion 133 stretches out ground, the top lid of collection portion 133 is equipped with closing plate 1331, closing plate 1331 can dismantle with collection portion 133 and be connected. Be provided with filtration liquid immersible pump 2 in the collection portion 133, filtration liquid immersible pump 2 is located the junction of collection portion 133 and water storage portion 132, filtration liquid immersible pump 2's water inlet and water storage portion 132 intercommunication, filtration liquid immersible pump 2's delivery port and collecting pipe 21 intercommunication, the vertical setting of collecting pipe 21 is in collection portion 133, and sealing plate 1331 is passed and the top of stretching out collection portion 133 on collecting pipe 21's top.
When the landfill leachate seeped from the backfill garbage flows out of the garbage, the landfill leachate flows to the center of the bottom surface of the foundation pit 1 on the first protective cloth 12 along the side wall and the bottom surface of the foundation pit 1 and flows into the connecting part 131, and then the landfill leachate flows to the water storage part 132 from the connecting part 131 and is temporarily stored in the water storage part 132; when collecting the landfill leachate in the water storage part 132, the landfill leachate is sucked by the water inlet of the leachate submersible pump 2 and is conveyed to the top end of the collecting pipe 21 through the water outlet, so that the landfill leachate in the water storage part 132 is conveyed to the upper part of the ground, and then the landfill leachate is purified by using landfill leachate purification equipment so as to be discharged; when raining, the sealing plate 1331 provided at the top end of the collecting part 133 can intercept rainwater, thereby preventing rainwater from flowing into the collecting part 133 and even flowing back into the foundation pit 1.
Referring to fig. 2, the impervious curtain 3 is cast of concrete, the whole of the impervious curtain 3 passes through the aquifer 51, the bottom end of the impervious curtain 3 is buried in the cohesive soil stratum 52, the cohesive soil stratum 52 is located below the aquifer 51, and the top end of the impervious curtain 3 is flush with the ground.
When the landfill leachate diffuses to the impervious curtain 3 in the aquifer 51, the impervious curtain 3 can intercept the landfill leachate, so that the landfill leachate is prevented from further polluting soil 5 and water sources outside the impervious curtain 3.
Referring to fig. 2, the protective layer 4 includes an impermeable film 41 and a second protective cloth 42, the impermeable film 41 and the second protective cloth 42 are both horizontally disposed, and the second protective cloth 42 is disposed in two layers and fixedly connected to the top surface and the bottom surface of the impermeable film 41, respectively.
When raining, the anti-seepage film 41 can intercept rainwater, and when a vehicle passes through the foundation pit 1, the second protective cloth 42 positioned on the top surface of the anti-seepage film 41 can protect the anti-seepage film 41, so that the possibility of damage to the anti-seepage film 41 is reduced; and the second protective cloth 42 positioned on the bottom surface of the impermeable membrane 41 can reduce the possibility that the impermeable membrane 41 is damaged by construction waste.
The implementation principle of the anti-seepage structure of the refuse backfilling field is as follows: pouring the backfill garbage into the foundation pit 1, enabling the garbage percolate to flow to the center of the bottom surface of the foundation pit 1 on the first protective cloth 12 along the side wall and the bottom surface of the foundation pit 1 and flow into the drain pipe 13, sucking the garbage percolate by the water inlet of the percolate submersible pump 2, conveying the garbage percolate to the top end of the collecting pipe 21 through the water outlet, conveying the garbage percolate in the water storage part 132 to the upper part of the ground, and then purifying the garbage percolate by using garbage percolate purifying equipment so as to discharge the garbage percolate; when the landfill leachate diffuses to the impervious curtain 3 in the soil 5, the impervious curtain 3 can intercept the landfill leachate, so that the possibility that the leachate in the aged landfill flows into the soil 5 and pollutes the soil 5 and a water source around the foundation pit 1 is reduced.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1. The utility model provides a rubbish backfill place seepage prevention structure which characterized in that: the anti-seepage curtain concrete foundation pit comprises a foundation pit (1), wherein an anti-seepage curtain (3) is arranged on the outer side of the foundation pit (1), the anti-seepage curtain (3) is formed by pouring concrete, the anti-seepage curtain (3) is sleeved on the outer side of the foundation pit (1), the whole anti-seepage curtain (3) penetrates through a water-bearing stratum (51), the bottom end of the anti-seepage curtain (3) is embedded in a cohesive soil stratum (52), and the top end of the anti-seepage curtain (3) is flush with the ground.
2. The anti-seepage structure of the refuse backfill site according to the claim 1, characterized in that: and a geomembrane (11) is laid on the inner side of the foundation pit (1).
3. The anti-seepage structure of the refuse backfill site according to the claim 2, characterized in that: the bottom surface of foundation ditch (1) is the concave surface form, and the opening upwards, and the bottom intercommunication of foundation ditch (1) has drain pipe (13), and the other end and the ground intercommunication of drain pipe (13).
4. The anti-seepage structure of the refuse backfill site according to the claim 3, characterized in that: be provided with filtration liquid immersible pump (2) in drain pipe (13), the water inlet and drain pipe (13) intercommunication of filtration liquid immersible pump (2), the delivery port and the ground intercommunication of filtration liquid immersible pump (2).
5. The anti-seepage structure of the refuse backfill site according to the claim 4, characterized in that: and a sealing plate (1331) is arranged at one end cover of the drain pipe (13) on the ground, and the sealing plate (1331) is detachably connected with the drain pipe (13).
6. The anti-seepage structure of the refuse backfill site according to the claim 2, characterized in that: one side of the geomembrane (11) far away from the foundation pit (1) is fixedly provided with first protective cloth (12), and the first protective cloth (12) is made of flexible materials.
7. The anti-seepage structure of the refuse backfill site according to the claim 1, characterized in that: the top end cover of foundation ditch (1) is equipped with inoxidizing coating (4), and inoxidizing coating (4) level is laid, and inoxidizing coating (4) internal fixation is provided with prevention of seepage membrane (41).
8. The anti-seepage structure of the refuse backfill site according to the claim 7, characterized in that: the protective layer (4) further comprises second protective cloth (42), wherein the second protective cloth (42) is arranged into two layers and is fixedly connected with the top surface and the bottom surface of the impermeable membrane (41) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120408782.8U CN214329003U (en) | 2021-02-24 | 2021-02-24 | Anti-seepage structure for refuse backfilling field |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120408782.8U CN214329003U (en) | 2021-02-24 | 2021-02-24 | Anti-seepage structure for refuse backfilling field |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214329003U true CN214329003U (en) | 2021-10-01 |
Family
ID=77886007
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120408782.8U Expired - Fee Related CN214329003U (en) | 2021-02-24 | 2021-02-24 | Anti-seepage structure for refuse backfilling field |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214329003U (en) |
-
2021
- 2021-02-24 CN CN202120408782.8U patent/CN214329003U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211001 |