CN220927963U

CN220927963U - Seepage-proofing and blocking structure of flexible landfill of dangerous waste

Info

Publication number: CN220927963U
Application number: CN202322762423.4U
Authority: CN
Inventors: 郑峰; 谢商贵; 何辉; 霍家家
Original assignee: Shandong Zhongbin Environmental Protection Technology Co ltd
Current assignee: Shandong Zhongbin Environmental Protection Technology Co ltd
Priority date: 2023-10-16
Filing date: 2023-10-16
Publication date: 2024-05-10
Anticipated expiration: 2033-10-16

Abstract

The utility model relates to the technical field of seepage-proofing and blocking structures of dangerous waste flexible landfill sites, and discloses a seepage-proofing and blocking structure of a dangerous waste flexible landfill site, which comprises a reinforced concrete bottom plate at the bottom of the landfill site, wherein a first filament nonwoven geotextile with 300g per square meter is laid above the reinforced concrete bottom plate, a first thick rubble layer is laid on the top of the first filament nonwoven geotextile, a second filament nonwoven geotextile with 300g per square meter is laid on the top of the first thick rubble layer, a compacted clay seepage-proofing layer is laid on the top of the second filament nonwoven geotextile, flexible garbage is poured into the flexible landfill site, the fourth filament nonwoven geotextile and the thick bag soil can block the garbage, the compacted clay seepage-proofing layer, a first smooth HDPE (high-density polyethylene) film and a first GCL (GCL) bentonite pad can further resist the garbage, and simultaneously the safety of the seepage-proofing structure is improved while the underground water source pollution of the garbage and the surrounding soil and the seepage-proofing and blocking structure are avoided.

Description

Seepage-proofing and blocking structure of flexible landfill of dangerous waste

Technical Field

The utility model relates to the technical field of seepage-proofing blocking structures of flexible landfill sites for dangerous wastes, in particular to a seepage-proofing blocking structure of a flexible landfill site for dangerous wastes.

Background

The seepage-proofing capacity of the flexible landfill of dangerous waste is used as a main index, and relates to the normal and stable operation of the landfill. Due to the non-overground structure of the flexible landfill, once leakage of an impermeable layer is caused, underground, surrounding soil and water sources are polluted, ecological and environment damage is caused, and therefore, the impermeable barrier structure of the flexible landfill for dangerous wastes is provided.

Disclosure of utility model

The utility model aims to provide an anti-seepage and blocking structure of a flexible landfill of dangerous waste, which aims to solve the problems that once leakage of an anti-seepage layer is caused, underground and surrounding soil and water sources are polluted and ecological and environmental damages are caused due to the non-overground structure of the flexible landfill, which is proposed in the background art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a flexible landfill anti-seepage separation structure of hazardous waste, includes the reinforced concrete bottom plate of landfill bottom, the top of reinforced concrete bottom plate has laid the first filament nonwoven geotechnique cloth that is 300g per square meter, the first thick rubble layer of laying of the top of first filament nonwoven geotechnique cloth, the second filament nonwoven geotechnique cloth that is 300g per square meter is laid at the top of first thick rubble layer, the compaction clay barrier layer has been laid at the top of second filament nonwoven geotechnique cloth, the first plain noodles HDPE geomembrane has been laid at the top of compaction clay barrier layer, the first GCL bentonite pad that is 4800g per square meter is laid at the top of first plain noodles HDPE geomembrane, the first composite drainage grid that is 1400g per square meter is laid at the top of first GCL bentonite pad, the second plain noodles HDPE geomembrane is laid at the top of first composite drainage grid, the top of the second smooth HDPE geomembrane is paved with a third filament nonwoven geotextile with 300g per square meter, the top of the third filament nonwoven geotextile is paved with a second thick rubble layer, the top of the second thick rubble layer is paved with a fourth filament nonwoven geotextile with 300g per square meter, the top of the fourth filament nonwoven geotextile is paved with a reinforced concrete pool wall, one side of the reinforced concrete pool wall is paved with a fifth filament nonwoven geotextile with 800g per square meter, one side of the fifth filament nonwoven geotextile is paved with a first rough surface HDPE geomembrane, one side of the first rough surface HDPE geomembrane is paved with a second GCL bentonite pad with 4800g per square meter, one side of the second GCL bentonite pad is paved with a second composite drain grid with 1400g per square meter, one side of the second composite drain grid with a second rough surface HDPE geomembrane, a sixth filament non-woven geotextile with 800g per square meter is laid on one side of the second rough surface HDPE geomembrane, a third composite drainage grid with 1400g per square meter is laid on one side of the sixth filament non-woven geotextile, thick bagged soil is laid on one side of the third composite drainage grid, when the flexible garbage is poured into a flexible landfill, the fourth filament non-woven geotextile and the thick bagged soil can block garbage, part of waste water in the garbage is discharged outwards through the second thick rubble layer and the third composite drainage grid, the third filament nonwoven geotextile, the sixth filament nonwoven geotextile and the second smooth HDPE geomembrane are used for filtering and blocking waste water, the waste water flows into the first GCL bentonite pad through the first composite drainage grid, the compacted clay impermeable layer, the first smooth HDPE geomembrane and the first GCL bentonite pad can be used for further impermeable, meanwhile, the first filament nonwoven geotextile, the first thick rubble layer and the second filament nonwoven geotextile can be used for impermeable filtration of the waste water, and meanwhile, the safety of an impermeable structure is improved while the impermeable performance of a reinforced concrete bottom plate and a reinforced concrete pool wall is improved, and garbage pollution to underground, peripheral soil and water sources is avoided.

Preferably, the thicknesses of the first smooth HDPE geomembrane and the second smooth HDPE geomembrane are 2.0mm, and the first smooth HDPE geomembrane and the second smooth HDPE geomembrane have low temperature resistance, ageing resistance and corrosion resistance, so that the waterproof and anti-seepage properties of the first smooth HDPE geomembrane and the second smooth HDPE geomembrane are improved.

Preferably, the thickness of the reinforced concrete bottom plate is 250mm, and the thickness of the reinforced concrete pool wall is 250mm, so that the seepage-proofing structure is safer and more reliable.

Preferably, the thickness of the compacted clay impermeable layer is 500mm, so that the impermeable performance is improved, and soil and water resources are prevented from being polluted.

Preferably, the thickness of the first rough-surface HDPE geomembrane and the second rough-surface HDPE geomembrane is 2.0mm, so that the waterproof and impermeable properties of the first rough-surface HDPE geomembrane and the second rough-surface HDPE geomembrane are improved.

Preferably, the thickness of the thick bagged soil is 300mm, so that the compressive strength is improved, and the filtering effect is achieved.

Preferably, the thickness of the first thick gravel layer and the second thick gravel layer is 300mm, the grain size is 30-50mm, the impermeable structure can be used for supporting, and meanwhile water can be filtered.

Compared with the prior art, the technical scheme provided by the utility model has the following technical effects:

According to the utility model, through arranging the reinforced concrete bottom plate, the reinforced concrete pool wall, the fifth filament nonwoven geotextile and the first rough surface HDPE geomembrane, when the reinforced concrete pool is used, flexible garbage is poured into a flexible landfill, the fourth filament nonwoven geotextile and the thick bagged soil can block the garbage, when part of waste water in the garbage is discharged outwards through the second thick crushed stone layer and the third composite drainage grid, the third filament nonwoven geotextile, the sixth filament nonwoven geotextile and the second smooth surface HDPE geomembrane filter and block the waste water, the waste water flows into the first GCL bentonite pad through the first composite drainage grid, the clay impermeable layer, the first smooth surface HDPE geomembrane and the first GCL bentonite pad can further prevent seepage of the waste water, the first rough surface HDPE geomembrane, the second GCL geotextile pad and the second rough surface HDPE geomembrane can block the waste water and filter the permeated waste water, meanwhile, the first filament nonwoven geotextile, the first thick crushed stone layer and the second filament nonwoven geotextile can filter the waste water, and the impermeable bottom plate and the impermeable soil are improved, and the safety of the reinforced concrete pool is also improved, and the surrounding safety of the reinforced concrete pool is avoided.

Drawings

In order to more clearly illustrate the embodiments of the application or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of the main structure of the present utility model;

FIG. 2 is a schematic illustration of a landfill bottom impermeable structure of the present utility model;

FIG. 3 is a schematic illustration of the anti-permeation structure of a landfill side slope of the present utility model.

Reference numerals illustrate: 1. a first reinforced concrete floor; 2. a first filament nonwoven geotextile; 3. a first thick crushed stone layer; 4. a second filament nonwoven geotextile; 5. compacting the clay impermeable layer; 6. a first smooth HDPE geomembrane; 7. a first GCL bentonite pad; 8. a first composite drainage grid; 9. a second smooth HDPE geomembrane; 10. a third filament nonwoven geotextile; 11. a second thick crushed stone layer; 12. a fourth filament nonwoven geotextile; 13. reinforced concrete pool walls; 14. a fifth filament nonwoven geotextile; 15. a first matte HDPE geomembrane; 16. a second GCL bentonite pad; 17. a second composite drainage grid; 18. a second matte HDPE geomembrane; 19. a sixth filament nonwoven geotextile; 20. a third composite drainage grid; 21. and (5) carrying out soil packing.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or be indirectly on the other element; when an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "first," "second," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate describing the application and simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be construed as limiting the application.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, the meaning of a plurality of "a number" is two or more, unless explicitly defined otherwise.

It should be understood that the structures, proportions, sizes, etc. shown in the drawings are for the purpose of understanding and reading the disclosure, and are not intended to limit the scope of the application, which is defined by the claims, but rather by the claims, unless otherwise indicated, and that any structural modifications, proportional changes, or dimensional adjustments, which would otherwise be apparent to those skilled in the art, would be made without departing from the spirit and scope of the application.

Examples

In the prior art, due to the non-overground structure of the flexible landfill, once leakage of an impermeable layer is caused, underground, surrounding soil and water sources are polluted, and ecological and environmental damage is caused.

Referring to fig. 1-3, the present utility model provides a technical solution: the utility model provides a flexible landfill anti-seepage separation structure of hazardous waste, reinforced concrete bottom plate 1 including the landfill bottom, reinforced concrete bottom plate 1's top has laid the first filament nonwoven geotechnique cloth 2 that is 300g per square meter, first thick rubble layer 3 has been laid at the top of first filament nonwoven geotechnique cloth 2, second filament nonwoven geotechnique cloth 4 that is 300g per square meter has been laid at the top of first thick rubble layer 3, compacted clay barrier layer 5 has been laid at the top of second filament nonwoven geotechnique cloth 4, compacted clay barrier layer 5's thickness is 500mm, improve the prevention of seepage, avoid polluting soil and water resource, first plain noodles HDPE geomembrane 6 has been laid at the top of compacted clay barrier layer 5, first GCL bentonite pad 7 that is 4800g per square meter has been laid at the top of first plain noodles HDPE geomembrane 6, first composite drainage grid 8 that is 1400g per square meter has been laid at the top of first GCL bentonite pad 7, second plain noodles HDPE geomembrane 9 has been laid at the top of first composite drainage grid 8.

The thickness of the first smooth surface HDPE geomembrane 6 and the second smooth surface HDPE geomembrane 9 is 2.0mm, the first smooth surface HDPE geomembrane 6 and the second smooth surface HDPE geomembrane 9 have low temperature resistance, ageing resistance and corrosion resistance, so that the waterproof and permeability resistance of the reinforced concrete tank wall is improved, the third filament nonwoven geotextile 10 with the thickness of 300g per square meter is paved on the top of the second smooth surface HDPE geomembrane 9, the second thick gravel layer 11 is paved on the top of the third filament nonwoven geotextile 10, the thickness of the first thick gravel layer 3 and the second thick gravel layer 11 is 300mm, the grain size is 30-50mm, the impermeable structure can be supported, water can be filtered at the same time, the fourth filament nonwoven geotextile 12 with the thickness of 300g per square meter is paved on the top of the second thick gravel layer 11, the reinforced concrete tank wall 13 with the thickness of 250mm is paved on the top of the fourth filament nonwoven geotextile 12, the reinforced concrete tank wall 13 with the thickness of 250mm, the impermeable structure is safer and more reliable, and the reinforced concrete tank wall 13 is paved with the fifth filament nonwoven geotextile with the thickness of 800g per square meter 14 g.

A first rough surface HDPE geomembrane 15 is laid on one side of the fifth filament non-woven geotextile 14, a second GCL bentonite pad 16 with the weight of 4800g per square meter is laid on one side of the first rough surface HDPE geomembrane 15, a second composite drainage grid 17 with the weight of 1400g per square meter is laid on one side of the second GCL bentonite pad 16, a second rough surface HDPE geomembrane 18 is laid on one side of the second composite drainage grid 17, the thicknesses of the first rough surface HDPE geomembrane 15 and the second rough surface HDPE geomembrane 18 are 2.0mm, the waterproof and impermeable properties of the first rough surface HDPE geomembrane and the second rough surface HDPE geomembrane are improved, a sixth filament non-woven geotextile 19 with the weight of 800g per square meter is laid on one side of the second rough surface HDPE geomembrane 18, a third composite drainage grid 20 with the weight of 1400g per square meter is laid on one side of the sixth filament non-woven geotextile 19, and a thick bag of soil 21 is laid on one side of the third composite drainage grid 20.

The thickness of the thick bagged soil 21 is 300mm, the compressive strength is improved, the filtering effect is achieved, when the anti-seepage reinforced concrete composite soil is used, flexible garbage is poured into a flexible landfill, the fourth filament non-woven geotextile 12 and the thick bagged soil 21 can block the garbage, when part of waste water in the garbage is discharged outwards through the second thick crushed stone layer 11 and the third composite drainage grid 20, the third filament non-woven geotextile 10, the sixth filament non-woven geotextile 19 and the second smooth HDPE geotextile 9 can filter and block the waste water, the waste water flows into the first GCL bentonite pad 7 through the first composite drainage grid 8, the clay impermeable layer 5, the first smooth HDPE geotextile 6 and the first GCL bentonite pad 7 can further be prevented from seepage, meanwhile, the first filament non-woven geotextile 2, the first thick geotextile 3 and the second filament non-woven geotextile 4 can carry out anti-seepage filtering on the waste water, and meanwhile, the reinforced concrete floor 1 and the reinforced concrete pool wall 13 can improve the safety of the anti-seepage structure, and the anti-seepage structure can avoid the pollution of the underground soil and the surrounding soil and water source.

The working principle or the structure principle is that when the flexible garbage is poured into a flexible landfill, the fourth filament non-woven geotextile 12 and the thick bagged soil 21 can block garbage, when part of waste water in the garbage is discharged outwards through the second thick rubble layer 11 and the third composite drainage grid 20, the third filament non-woven geotextile 10, the sixth filament non-woven geotextile 19 and the second smooth surface HDPE geotextile 9 can filter and block the waste water, the first GCL bentonite pad 7 flows into the compacted clay impermeable layer 5, the first smooth surface HDPE geotextile 6 and the first GCL bentonite pad 7 through the first composite drainage grid 8, the first rough surface HDPE geotextile 15, the second GCL bentonite pad 16 and the second rough surface HDPE geotextile 18 can block the waste water and filter the permeated waste water, meanwhile, the first filament non-woven geotextile 2, the first thick rubble layer 3 and the second filament non-woven geotextile 4 can filter the waste water, and simultaneously the reinforced concrete bottom plate 1 and the impermeable pool wall 13 can improve the impermeable structure and the safety of the periphery of the underground garbage and the soil pollution prevention.

Thus, embodiments of the present utility model have been described in detail with reference to the accompanying drawings. It should be noted that, in the drawings or the text of the specification, implementations not shown or described are all forms known to those of ordinary skill in the art, and not described in detail. Furthermore, the above definitions of the components are not limited to the specific structures, shapes or modes mentioned in the embodiments, and may be simply modified or replaced by those of ordinary skill in the art.

Those skilled in the art will appreciate that the features recited in the various embodiments of the utility model and/or in the claims may be combined in various combinations and/or combinations, even if such combinations or combinations are not explicitly recited in the utility model. In particular, the features recited in the various embodiments of the utility model and/or in the claims can be combined in various combinations and/or combinations without departing from the spirit and teachings of the utility model. All such combinations and/or combinations fall within the scope of the utility model.

The foregoing description of the embodiments has been provided for the purpose of illustrating the general principles of the utility model, and is not meant to limit the utility model thereto, but to limit the utility model thereto, and any modifications, equivalents, improvements and equivalents thereof may be made without departing from the spirit and principles of the utility model.

Claims

1. The utility model provides a flexible landfill anti-seepage separation structure of hazardous waste, includes reinforced concrete bottom plate (1) of landfill bottom, its characterized in that: the reinforced concrete floor (1) is characterized in that a first filament non-woven geotextile (2) with 300g per square meter is laid on the top of the reinforced concrete floor (1), a first thick gravel layer (3) is laid on the top of the first filament non-woven geotextile (2), a second filament non-woven geotextile (4) with 300g per square meter is laid on the top of the first thick gravel layer (3), a compacted clay impermeable layer (5) is laid on the top of the second filament non-woven geotextile (4), a first smooth HDPE geomembrane (6) is laid on the top of the compacted clay impermeable layer (5), a first GCL bentonite pad (7) with 4800g per square meter is laid on the top of the first smooth HDPE geomembrane (6), a first composite drainage grid (8) with 1400g per square meter is laid on the top of the first GCL bentonite pad, a second smooth HDPE geomembrane (9) is laid on the top of the second smooth HDPE geomembrane (9), a second composite drainage grid (12) is laid on the top of the second smooth HDPE geomembrane (7), a fourth ground geomembrane (12) is laid on the top of the second smooth HDPE geomembrane (12), a second composite drainage grid (11 g) is laid on the top of the second non-woven geotextile (12) with 300g per square meter of the top of the first GCL bentonite layer (7), the reinforced concrete pond is characterized in that a fifth filament non-woven geotextile (14) with the weight of 800g per square meter is laid on one side of the reinforced concrete pond wall (13), a first rough surface HDPE geotextile (15) is laid on one side of the fifth filament non-woven geotextile (14), a second GCL bentonite pad (16) with the weight of 4800g per square meter is laid on one side of the first rough surface HDPE geotextile (15), a second composite drainage grid (17) with the weight of 1400g per square meter is laid on one side of the second GCL bentonite pad (16), a second rough surface HDPE geotextile (18) is laid on one side of the second composite drainage grid (17), a sixth filament non-woven geotextile (19) with the weight of 800g per square meter is laid on one side of the sixth filament non-woven geotextile (19), and a third composite drainage grid (20) with the weight of 1400g per square meter is laid on one side of the third composite drainage grid (20).

2. The hazardous waste flexible landfill barrier structure of claim 1, wherein: the thicknesses of the first smooth HDPE geomembrane (6) and the second smooth HDPE geomembrane (9) are 2.0mm.

3. The hazardous waste flexible landfill barrier structure of claim 1, wherein: the thickness of the reinforced concrete bottom plate (1) is 250mm, and the thickness of the reinforced concrete pool wall (13) is 250mm.

4. The hazardous waste flexible landfill barrier structure of claim 1, wherein: the thickness of the compacted clay impermeable layer (5) is 500mm.

5. The hazardous waste flexible landfill barrier structure of claim 1, wherein: the first matte HDPE geomembrane (15) and the second matte HDPE geomembrane (18) have a thickness of 2.0mm.

6. The hazardous waste flexible landfill barrier structure of claim 1, wherein: the thickness of the thick bagged soil (21) is 300mm.

7. The hazardous waste flexible landfill barrier structure of claim 1, wherein: the thickness of the first thick broken stone layer (3) and the second thick broken stone layer (11) is 300mm, and the grain size is 30-50mm.