CN217580322U - Side slope seepage-proofing structure of refuse landfill - Google Patents

Abstract

The utility model discloses a side slope seepage prevention structure of landfill, including seepage prevention system and former soil layer, the top on former soil layer is equipped with the nutrient medium overburden, the top on nutrient medium overburden is equipped with seepage prevention system, seepage prevention system's the upper right side is equipped with the landfill, the inclined below of landfill is equipped with geotechnological protective layer, the right side below slope ground face of geotechnological protective layer, the below on former soil layer is equipped with first soil barrier, the right side of first soil barrier is equipped with second soil barrier, the below of a soil barrier and second soil barrier is equipped with compaction foundation layer. The utility model discloses select flexible casing, can make anti-seepage system and external environment keep apart, reduce the evaporation of water, the film is aerifyd in the bottommost adoption, plays the effect of a protection to anti-seepage system, if enter into winter and can also play heat retaining effect, cross leachate processing system and in time handle leachate, avoid taking place the long-pending stay.

Description

Side slope seepage-proofing structure of refuse landfill

Technical Field

The utility model belongs to the technical field of the landfill handles, concretely relates to side slope seepage prevention structure of landfill.

Background

The refuse landfill is a refuse centralized stacking site adopting a sanitary landfill mode, and the refuse sanitary landfill is widely applied in China due to low cost and good sanitary degree. A leachate treatment system in the construction of a domestic garbage landfill is the key for determining the technical success of the garbage landfill, and is directly related to the pollution degree of surface water nearby. The garbage burial has two modes of (1) dumping: an open pit is dug on the ground, and garbage is buried in the pit, around which various animals are clustered. (2) Burying: elaborate facilities are built underground or on the ground to isolate the waste from the surrounding environment such as ground water, air and rain. This isolation is achieved by the bottom lining and daily soil coverage.

At present, current landfill slope structure can avoid causing the pollution to soil to in time handle the leachate through leachate processing system, but can not protect the side slope well, can't reach heat retaining effect when getting into winter, the evaporation of moisture is comparatively fast moreover.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a can protect the side slope well, can keep warm well when getting into winter, the relatively slow side slope seepage prevention structure of landfill of evaporation of moisture moreover.

In order to realize the purpose of the utility model, the utility model adopts the following technical scheme:

the utility model provides a side slope seepage prevention structure of landfill, includes seepage prevention system and former soil layer, the top on former soil layer is equipped with the nutrient medium overburden, the top on nutrient medium overburden is equipped with seepage prevention system, the upper right side of seepage prevention system is equipped with the landfill, the inclined below of landfill is equipped with the geotechnological protective layer, the right side below slope ground plane of geotechnological protective layer, the below on former soil layer is equipped with first soil barrier, the right side of first soil barrier is equipped with second soil barrier, the below of a soil barrier and second soil barrier is equipped with compaction foundation layer.

According to the above features, the anti-seepage system is sequentially provided with the flexible shell, the upper geotechnical drainage net, the geotechnical film, the lower geotechnical drainage net and the inflatable film from top to bottom.

In some examples, the nutrient substrate cover layer and the right side of the original soil layer and the left side of the second soil impermeable layer are sequentially provided with a filling layer and a filtering layer from top to bottom.

According to the characteristics, a water pipe is arranged in the second soil impervious layer, a water pumping device is connected to the right side of the water pipe, and the other end of the water pumping device is directly connected to the top of the inclined ground plane.

In some examples, the nutrient media cover is at 45 ° to 60 ° to the horizontal plane of the geotechnical cover, and the landfill site is parallel to the cross-section of the geotechnical cover.

In some examples, the second soil impervious layer is in an inverted Z-shaped structure, and a group of leachate collecting systems are arranged on the impervious system at intervals.

The utility model has the advantages that:

1) The utility model provides a nutrition matrix overburden can increase the nutrition on former soil layer, can provide mineral substance nutrition for it. The geotechnical protective layer is protected by geotechnical cloth and has the functions of isolation, protection, filtration, drainage, reinforcement, seepage prevention and the like.

2) The utility model discloses separately about with the soil barrier, wherein the left side can prevent seepage completely, and the right side is the type of falling Z structure, can not reach and prevent seepage completely. The water pipe is arranged in the soil seepage prevention device, the water pump is arranged on the other side of the water pipe, and redundant water in the second soil seepage prevention layer can be pumped away from the upper portion of the water pipe, so that the soil seepage prevention effect is achieved.

3) The utility model discloses select flexible casing, can make anti-seepage system and external environment keep apart, reduce the evaporation of water, the film is aerifyd in the bottommost adoption, plays the effect of a protection to anti-seepage system, if enter into winter and can also play heat retaining effect.

4) The utility model discloses plant crops at the fill layer, can absorb moisture and nutrient substance well, play the effect of afforestation, environmental protection simultaneously. The excessive moisture can be filtered in the filter layer, so that the crops planted on the upper side are prevented from rotting due to excessive moisture. Go up geotechnological drainage network, geotechnological film, lower geotechnological drainage network and can improve waterproof performance, in time handle the leachate through leachate processing system, avoid taking place the long-pending stay.

Drawings

Fig. 1 is a schematic structural view of the side slope seepage-proofing structure of the refuse landfill.

Fig. 2 is a schematic structural view of the anti-seepage system of the present invention.

Shown in the figure: 1-an anti-seepage system, 2-a leachate collection system, 3-a nutrient substrate covering layer, 4-a raw soil layer, 5-a first soil anti-seepage layer, 6-a compacted base layer, 7-a refuse landfill, 8-a geotechnical protection layer, 9-an inclined foundation surface, 10-a filling soil layer, 11-a filter layer, 12-a water pipe, 13-a water pump, 14-a second soil anti-seepage layer, 101-a flexible shell, 102-an upper geotechnical drainage net, 103-a geomembrane, 104-a lower geotechnical drainage net and 105-an inflatable membrane.

Detailed Description

Embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While the embodiments of the present invention have been illustrated in the accompanying drawings, it is to be understood that the invention may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. Those skilled in the art will recognize that alternative embodiments may be implemented within the scope of the present invention without departing from the spirit and scope of the present invention.

Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this disclosure belongs. The use of "first," "second," and similar terms in the description and claims of the present disclosure are not intended to indicate any order, quantity, or importance, but rather are used to distinguish one element from another. Also, the use of the terms "a" or "an" and the like do not necessarily denote a limitation of quantity. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used only to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.

An object of the present invention is to provide a side slope seepage prevention structure of a refuse landfill, which can overcome the above problems of the prior art and has the following advantages in combination with the following description.

A slope seepage prevention structure of a landfill site according to a first embodiment of the present invention will be described with reference to fig. 1.

Fig. 1-2 show according to the utility model discloses a side slope seepage prevention structure schematic diagram of landfill, according to the utility model discloses a first embodiment, a side slope seepage prevention structure of landfill 7, including seepage prevention system 1 and former soil horizon 4, the former soil horizon here is the natural soil horizon that does not have the disturbance. The nutrient medium covering layer 3 is arranged above the original soil layer 4, so that the nutrition of the original soil layer can be increased, and mineral nutrition can be provided for the original soil layer. An anti-seepage system 1 is arranged above the nutrient matrix covering layer 3, a refuse landfill 7 is arranged on the right upper side of the anti-seepage system 1, a geotechnical protective layer 8 is arranged below the refuse landfill 7, and the geotechnical protective layer is protected by geotechnical cloth and has the functions of isolation, protection, filtration, drainage, reinforcement, anti-seepage and the like. The inclined base surface 9 is arranged below the right side of the geotechnical protection layer 8, and the inclined base surface plays a role in supporting and protecting the geotechnical protection layer, so that the stability of the geotechnical protection layer 8 can be improved. The utility model provides a below of former soil horizon 4 is equipped with first soil barrier layer 5, is equipped with second soil barrier layer 14 on the right side of first soil barrier layer 5, with the soil barrier layer control separately, wherein the left side can prevent seepage completely, and the right side is the type of falling Z structure, can not reach and prevent seepage completely. A water pipe 12 is arranged in the soil seepage-proofing device, and a water pump 13 is arranged on the other side of the water pipe 12, so that redundant water in the second soil seepage-proofing layer 14 can be pumped away from the upper part, and the soil seepage-proofing effect is achieved. A compacted base layer 6 is arranged below the first soil impervious layer 5 and the second soil impervious layer 14. According to the characteristics, the anti-seepage system 1 is sequentially provided with the flexible shell 101 and the flexible shell from top to bottom, so that the anti-seepage system can be isolated from the external environment, and the evaporation of water is reduced. The upper geotechnical drainage net 102, the geotechnical film 103, the lower geotechnical drainage net 104 and the inflatable film 105 are arranged at the bottom, and the inflatable film is adopted at the bottom, so that the anti-seepage system is protected, and the heat preservation effect can be realized if the anti-seepage system enters winter.

In some examples, the nutrient substrate cover layer 3 and the right side of the raw soil layer 4, and the left side of the second soil impermeable layer 14 are sequentially provided with a filling layer 10 and a filtering layer 11 from top to bottom. The soil filling layer is gray, slightly wet and loose, mainly contains cohesive soil and construction waste, soft and plastic plowing soil containing plant roots and stems is found at the bottom of the drill hole, and sand is contained at the bottom of the local drill hole. The crops are planted in the soil filling layer, so that moisture and nutrient substances can be well absorbed, and the effects of greening and protecting the environment are achieved. The filter layer can filter out redundant water, so that the crops planted on the upper side are prevented from rotting due to excessive water. According to the characteristics, a water pipe 12 is arranged in the second soil impervious barrier 14, a water pumping device 13 is connected to the right side of the water pipe 12, and the other end of the water pumping device 13 is directly connected to the top of the inclined foundation surface 9. In some examples, the nutrient media blanket 3 is at 45 ° to 60 ° to the horizontal plane of the geotechnical protective layer 8, and the landfill site 7 is parallel to the cross-section of the geotechnical protective layer 8. In some examples, the second soil impervious layer 14 is in an inverted "Z" shape, and the impervious system 1 is provided with a group of leachate collecting systems 2 which are spaced from each other. The upper geotechnical drainage network 102, the geotechnical film 103 and the lower geotechnical drainage network 104 can improve the waterproof performance, and leachate is treated in time through the leachate treatment system, so that the occurrence of retention is avoided.

The above description is only for the specific embodiments of the present disclosure, but the scope of the embodiments of the present disclosure is not limited thereto, and any person skilled in the art can easily conceive of the changes, substitutions or combinations within the technical scope of the embodiments of the present disclosure or under the concept of the embodiments of the present disclosure, and all of them should be covered by the scope of the embodiments of the present disclosure.

Claims (6)

1. The utility model provides a side slope seepage prevention structure of landfill, includes seepage prevention system (1) and former soil horizon (4), its characterized in that the top of former soil horizon (4) is equipped with nutrient medium overburden (3), the top of nutrient medium overburden (3) is equipped with seepage prevention system (1), the upper right side of seepage prevention system (1) is equipped with landfill yard (7), the below-to-side of landfill yard (7) is equipped with geotechnological protective layer (8), the right side below slope ground face (9) of geotechnological protective layer (8), the below of former soil horizon (4) is equipped with first soil barrier (5), the right side of first soil barrier (5) is equipped with second soil barrier (14), the below of a soil barrier (5) and second soil barrier (14) is equipped with compaction basic unit (6).

2. The seepage-proofing structure for the side slope of refuse landfill according to claim 1, characterized in that the seepage-proofing system (1) is sequentially provided with a flexible shell (101), an upper geotechnical drainage net (102), a geotechnical film (103), a lower geotechnical drainage net (104) and an inflatable film (105) from top to bottom.

3. The slope seepage prevention structure of a refuse landfill according to claim 1, characterized in that the right side of the nutrient substrate covering layer (3) and the original soil layer (4), and the left side of the second soil seepage prevention layer (14) are sequentially provided with a soil filling layer (10) and a filtering layer (11) from top to bottom.

4. The side slope seepage-proofing structure of the refuse landfill according to claim 1, characterized in that a water pipe (12) is arranged in the second soil seepage-proofing layer (14), a water pump (13) is connected to the right side of the water pipe (12), and the other end of the water pump (13) is directly connected to the top of the inclined ground plane (9).

5. The seepage control structure for the side slope of the refuse landfill according to claim 1, characterized in that the nutrient matrix covering layer (3) and the horizontal plane of the geotechnical protective layer (8) form an angle of 45-60 degrees, and the cross section of the refuse landfill (7) and the cross section of the geotechnical protective layer (8) are parallel.

6. The slope seepage-proofing structure of the refuse landfill is characterized in that the second soil seepage-proofing layer (14) is of an inverted Z-shaped structure, and a group of leachate collecting systems (2) which are mutually spaced are arranged on the seepage-proofing system (1).

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