CN219410984U - Connecting structure of covering film and anchoring ditch of landfill - Google Patents
Connecting structure of covering film and anchoring ditch of landfill Download PDFInfo
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- CN219410984U CN219410984U CN202320731523.8U CN202320731523U CN219410984U CN 219410984 U CN219410984 U CN 219410984U CN 202320731523 U CN202320731523 U CN 202320731523U CN 219410984 U CN219410984 U CN 219410984U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/30—Landfill technologies aiming to mitigate methane emissions
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Abstract
The utility model relates to a connecting structure of a covering film and an anchoring groove of a landfill, which comprises a reservoir area impermeable film unit, wherein the outer edge of the reservoir area impermeable film unit is anchored in the anchoring groove of an anchoring platform around the landfill reservoir area, and a preset connecting film extending along the anchoring groove is paved on the anchoring platform above the reservoir area impermeable film unit; the edge of the preset connecting film, which is far away from the landfill reservoir area in the width direction, is an anchoring edge, is anchored in the anchoring groove together with the reservoir area anti-seepage film unit, the edge of the preset connecting film, which is towards the landfill reservoir area, is a welding edge, and is suspended above the reservoir area anti-seepage film unit outside the anchoring groove, and the welding edge of the preset connecting film forms a preset connecting end for welding with the outer edge of a subsequent landfill covering film covered in subsequent landfill construction. After the structure is adopted, only one anchoring construction is carried out in the edge fixing process of the anti-seepage film in the reservoir area and the subsequent landfill covering film, so that the waste landfill construction process is simplified, the construction working hour is shortened, and the construction cost is reduced.
Description
Technical Field
The utility model belongs to the technical field of solid waste land landfill disposal, and particularly relates to a connecting structure of a covering film and an anchoring ditch of a solid waste landfill site.
Background
Solid waste refers to solid, semi-solid materials produced by humans during production construction, daily life and other activities that are not available at a given time and place to be discarded. The solid waste which cannot be further recycled or reused must be finally disposed of to be maximally isolated from the environment or biosphere, thereby preventing the environmental pollution.
At present, a land landfill method is one of the common final disposal methods of solid wastes, and in landfill construction, in order to prevent surrounding environment and groundwater from being polluted by waste leachate and landfill gas, and also prevent groundwater, surface water and the like from entering a landfill site, seepage prevention measures and covering measures must be adopted. In the anti-seepage measures, most importantly, a reservoir anti-seepage layer is arranged at the bottom of a landfill reservoir and on a side slope of the landfill, and the reservoir anti-seepage film in the reservoir anti-seepage layer is usually pressed and fixed in an anchoring groove of an anchoring platform around the landfill reservoir in a manner of an anchoring groove by using concrete in a sealing manner. The covering measures comprise daily covering, middle covering and final covering, when the daily landfill operation of an operation area is finished, a temporary covering film is adopted to perform daily covering on the surface of a waste layer, after the garbage is landfilled in the operation area to a set staged height, the middle covering film is adopted to perform middle covering on the garbage, and the outer edges of the temporary covering film and the middle covering film are anchored and fixed by adopting corresponding anchoring grooves; when the landfill operation reaches the designed final elevation, the whole landfill is covered finally, the outer edge of the final impermeable membrane in the final covering layer is generally fixed by adopting an anchoring groove or a mode of welding on the reservoir impermeable membrane, and when the final impermeable membrane is fixed by adopting a welding mode, the reservoir impermeable membrane is easily damaged by holes in a welding area, so that leakage is caused.
In the construction of a landfill operation area, the reservoir area impermeable membrane, the final field impermeable membrane, the temporary covering membrane and the middle covering membrane can be anchored only by respectively excavating the anchoring grooves in the corresponding laying construction stage, and the membranes can be backfilled and anchored by excavating the anchoring grooves for many times, so that the landfill operation construction process is increased, the whole process is complicated, and the material cost and the landfill construction cost are increased.
Disclosure of Invention
The utility model aims to provide a connecting structure of a covering film and an anchoring ditch of a landfill, so that the anti-seepage film in a reservoir area can be anchored by one-time excavation anchoring ditch anchoring construction, the outer edge of the subsequent landfill covering film can be easily fixed, and the technical problem that one landfill operation area needs to excavate the anchoring ditch anchoring construction for two times or more before and after the landfill operation area in the prior art is solved.
In order to achieve the above purpose, the utility model adopts the following technical scheme: the connecting structure of the landfill covering film and the anchoring groove comprises a reservoir area impermeable film unit, wherein the outer edge of the reservoir area impermeable film unit is anchored in the anchoring groove of an anchoring platform around the landfill reservoir area, and a preset connecting film extending along the anchoring groove is paved on the anchoring platform above the reservoir area impermeable film unit; the edge of the preset connecting film, which is far away from the landfill reservoir area in the width direction, is an anchoring edge, is anchored in the anchoring groove together with the reservoir area anti-seepage film unit, the edge of the preset connecting film, which is towards the landfill reservoir area, is a welding edge, and is suspended above the reservoir area anti-seepage film unit outside the anchoring groove, and the welding edge of the preset connecting film forms a preset connecting end for welding with the outer edge of a subsequent landfill covering film covered in subsequent landfill construction.
The further optimized technical scheme is that the preset connecting film and the subsequent landfill covering film are welded in a lap joint mode.
The further optimized technical scheme is that the outer edge of the follow-up landfill covering film is overlapped on the welding edge of the preset connecting film.
The further optimized technical scheme is that the preset connecting film is one piece, and the subsequent landfill covering film is a temporary covering film or an intermediate covering film or a final-field seepage-proofing film.
The further optimized technical scheme is that a protective geotechnical cloth layer is further arranged on the preset connecting film, the protective geotechnical cloth layer is anchored in the anchoring ditch towards the edge of the anchoring ditch, and the protective geotechnical cloth layer is suspended and stretched out of the anchoring ditch towards the edge of the landfill reservoir area to form a geotechnical cloth connecting reserved joint.
The further optimized technical scheme is that the preset connecting films are two stacked vertically, the subsequent landfill covering film is any two of a temporary covering film, a middle covering film and a final-field seepage-proofing film, and the two films are welded with the preset connecting films which are sequentially corresponding to each other vertically; or the preset connecting films are three stacked up and down, the follow-up landfill covering films are temporary covering films, middle covering films and final-field seepage-proofing films, and the three films are welded with the preset connecting films which correspond to each other in sequence up and down.
The further optimized technical scheme is that a protective geotechnical cloth layer is further arranged on the preset connecting film on the outermost layer, the protective geotechnical cloth layer is anchored in the anchoring ditch towards the edge of the anchoring ditch, and extends out of the anchoring ditch towards the edge of the landfill reservoir area in a suspending mode to form a geotechnical cloth connecting reserved joint.
The further optimized technical proposal is that the anchoring edges of each preset connecting film and the protective geotechnical cloth layer when not in use are fixed together by welding or bonding.
The further optimized technical scheme is that the protective geotextile layer is made of black anti-aging geotextile.
The beneficial effects of the utility model are as follows: after the preset connection film is additionally arranged, when the reservoir impermeable film unit is subjected to anchoring construction, the anchoring edges of the preset connection film can be anchored in the same anchoring groove together, and the welding edges of the preset connection film are reserved outside the anchoring groove, so that the welding edges form preset connection ends which can be welded with the preset connection ends. Therefore, after the structure of the utility model is adopted, only one anchoring construction is carried out in the edge fixing process of the anti-seepage film in the warehouse area and the subsequent landfill covering film, and the subsequent landfill covering film is welded and fixed with the preset connecting film, so that the waste landfill construction process is simplified, the construction time is shortened, and the construction cost is reduced.
Drawings
FIG. 1 is a schematic diagram of an embodiment of the present utility model.
In the figure, 1 is a garbage pile body, 2 is a geotechnical composite liner, 3 is an HDPE film, 4 is a geotechnical composite drainage net, 5 is an HDPE film, 6 is a geotechnical cloth film upper protection layer, 7 is a subsequent landfill covering film, 8 is a preset connecting film, 9 is an anchoring ditch, and 10 is a weight block.
Description of the embodiments
An embodiment of the connection structure of the landfill cover film and the anchoring ditch of the utility model is shown in fig. 1, and comprises a landfill reservoir area, a reservoir area impermeable layer, a subsequent landfill cover film 7 and a preset connection film 8.
An anchoring platform is arranged on the periphery of the landfill reservoir area, and an anchoring ditch 9 is excavated on the anchoring platform.
The reservoir impermeable layer comprises a reservoir impermeable membrane unit, wherein the reservoir impermeable membrane unit comprises a geocomposite liner 2, an HDPE membrane 3, a geocomposite drainage net 4, an HDPE membrane 5 and a polypropylene filament non-woven geotextile membrane upper protective layer 6 which are sequentially overlapped from bottom to top, the reservoir impermeable membrane unit is paved on the reservoir bottom and the side slope of a landfill reservoir, and the edges of the reservoir impermeable membrane unit are anchored in an anchoring ditch 9.
The preset connecting film 8 is paved on the anchoring platform and is positioned above the impermeable film unit in the landfill area, the preset connecting film 8 is paved in a long strip shape along the length of the anchoring groove 9, and the edge of the preset connecting film 8, which is far away from the landfill area, is an anchoring edge and the edge, which is far towards the landfill area, is a welding edge in the width direction of the film; when the outer edge of the reservoir area anti-seepage film unit is anchored, the anchoring edge of the preset connecting film 8 and the outer edge of the reservoir area anti-seepage film unit are overlapped and anchored in the anchoring groove 9, the welding edge of the preset connecting film is suspended above the reservoir area anti-seepage film unit outside the anchoring groove, and the welding edge forms a preset connecting end for welding with the outer edge of the subsequent landfill covering film 7. The welding is preferably carried out in a lap joint manner, so that the welding is firm and the sealing effect is good, and in addition, the outer edge of the subsequent landfill cover film 7 is overlapped on the welding edge of the preset connecting film 8, so that the water is conveniently discharged outwards.
In the specific implementation, the subsequent landfill covering film 7 can be a temporary covering film, a middle covering film and/or a final-field seepage-proofing film, and the preset connecting film 8 can be set to one or three according to actual needs; the protective geotechnical cloth layer (not shown in fig. 1) can be arranged on the preset connection film on the outermost layer, the protective geotechnical cloth layer is anchored in the anchoring ditch towards the edge of the anchoring ditch, and the protective geotechnical cloth layer is suspended outside the anchoring ditch towards the edge of the landfill reservoir area to form a geotechnical cloth connection reserved joint, so that the preset connection film can be protected from being irradiated by ultraviolet rays, and the edge of the geotechnical cloth protection layer covered on the subsequent landfill covering film in subsequent construction can be connected with the protective geotechnical cloth layer, so that edge fixation is easily realized. The protective geotextile layer is made of black anti-aging geotextile.
When the subsequent landfill covering film is any one of the temporary covering film, the middle covering film and the final-field seepage-proofing film, the preset connecting film is one sheet.
When the subsequent landfill covering film is any two of the temporary covering film, the middle covering film and the final-field seepage-proofing film, the preset connecting film adopts two stacked films, and the films are welded in a one-to-one correspondence mode according to the upper-lower sequence during welding.
When three subsequent landfill covering films are respectively a temporary covering film, a middle covering film and a final-field seepage-proofing film, three preset connecting films are overlapped up and down, and are welded in a one-to-one correspondence mode according to the up-down sequence during welding.
If two or three preset connection films are arranged, the anchoring edges of the preset connection films and the protective geotechnical cloth layer can be fixed together through welding or bonding, and then are anchored together with the reservoir impermeable film, so that the anchoring construction is convenient, the anchoring firmness of the preset connection films is guaranteed, the damage is reduced, and the anchoring is tidy.
The subsequent landfill covering film 7 covered on the landfill pile body is pressed and fixed by the pressing blocks 10 (if the film is also covered with a protective geotechnical cloth layer, the pressing blocks are pressed on the protective geotechnical cloth layer), on the cross section vertical to the anchoring ditch, the pressing blocks are arranged at intervals and are connected in series by an ultraviolet-proof cable, the terminal pressing block is pressed and arranged at the welding part of the subsequent landfill covering film and the preset connecting film, and the pressing blocks 10 can adopt bagged soil or tires or hard geogrids.
Claims (9)
1. The utility model provides a connection structure of landfill covering membrane and anchor ditch, includes the prevention of seepage membrane unit of storehouse district, and the outer fringe of prevention of seepage membrane unit of storehouse district anchors in the anchor ditch of anchor platform around the landfill storehouse district, its characterized in that: a preset connecting film extending along the anchoring groove is paved on the anchoring platform above the reservoir area seepage-proofing film unit; the edge of the preset connecting film, which is far away from the landfill reservoir area in the width direction, is an anchoring edge, is anchored in the anchoring groove together with the reservoir area anti-seepage film unit, the edge of the preset connecting film, which is towards the landfill reservoir area, is a welding edge, and is suspended above the reservoir area anti-seepage film unit outside the anchoring groove, and the welding edge of the preset connecting film forms a preset connecting end for welding with the outer edge of a subsequent landfill covering film covered in subsequent landfill construction.
2. The landfill covering film and anchor ditch connecting structure according to claim 1, wherein: and the preset connection film and the subsequent landfill covering film are welded in a lap joint manner.
3. The landfill covering film and anchor ditch connecting structure according to claim 2, wherein: the outer edge of the subsequent landfill cover film is overlapped on the welding edge of the preset connection film.
4. The landfill covering film and anchor ditch connecting structure according to claim 1, wherein: the preset connecting film is one piece, and the subsequent landfill covering film is a temporary covering film or an intermediate covering film or a final-field seepage-proofing film.
5. The landfill covering film and anchor ditch connecting structure according to claim 4, wherein: the upper surface of the preset connecting film is also provided with a protective geotechnical cloth layer, the protective geotechnical cloth layer is anchored in the anchoring ditch towards the edge of the anchoring ditch, and the protective geotechnical cloth layer is suspended and stretched out of the anchoring ditch towards the edge of the landfill reservoir area to form a geotechnical cloth connecting reserved joint.
6. The landfill covering film and anchor ditch connecting structure according to claim 1, wherein: the preset connecting films are two stacked vertically, the subsequent landfill covering film is any two of a temporary covering film, a middle covering film and a final impermeable film, and the two films are welded with the preset connecting films which correspond to each other vertically; or the preset connecting films are three stacked up and down, the follow-up landfill covering films are temporary covering films, middle covering films and final-field seepage-proofing films, and the three films are welded with the preset connecting films which correspond to each other in sequence up and down.
7. The landfill covering film and anchor ditch connecting structure according to claim 6, wherein: the protective geotechnical cloth layer is also arranged on the preset connecting film of the outermost layer, the protective geotechnical cloth layer is anchored in the anchoring ditch towards the edge of the anchoring ditch, and the protective geotechnical cloth layer is suspended and stretched out of the anchoring ditch towards the edge of the landfill reservoir area to form a geotechnical cloth connecting reserved joint.
8. The landfill covering film and anchor ditch connecting structure according to claim 5 or 7, wherein: the anchor edges of the preset connecting films and the protective geotechnical cloth layers when not in use are fixed together through welding or bonding.
9. The landfill covering film and anchor ditch connecting structure according to claim 8, wherein: the protective geotextile layer is made of black anti-aging geotextile.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320731523.8U CN219410984U (en) | 2023-04-06 | 2023-04-06 | Connecting structure of covering film and anchoring ditch of landfill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320731523.8U CN219410984U (en) | 2023-04-06 | 2023-04-06 | Connecting structure of covering film and anchoring ditch of landfill |
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| Publication Number | Publication Date |
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| CN219410984U true CN219410984U (en) | 2023-07-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202320731523.8U Active CN219410984U (en) | 2023-04-06 | 2023-04-06 | Connecting structure of covering film and anchoring ditch of landfill |
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| Country | Link |
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| CN (1) | CN219410984U (en) |
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2023
- 2023-04-06 CN CN202320731523.8U patent/CN219410984U/en active Active
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