CN212742645U

CN212742645U - Anti-seepage structure of refuse landfill

Info

Publication number: CN212742645U
Application number: CN202021266397.6U
Authority: CN
Inventors: 郭贵龙
Original assignee: Anhui Lanqingyuan Environmental Science & Technology Co ltd
Current assignee: Anhui Lanqingyuan Environmental Science & Technology Co ltd
Priority date: 2020-07-02
Filing date: 2020-07-02
Publication date: 2021-03-19
Anticipated expiration: 2030-07-02

Abstract

The utility model provides a landfill's prevention of seepage structure. The anti-seepage structure of the refuse landfill comprises a real ground base layer, a cobblestone layer and a clay layer, wherein a first HDPE (high-density polyethylene) anti-seepage film is laid above the real ground base layer, a side slope petrochemical layer is poured on the first HDPE anti-seepage film, the cobblestone layer is laid above the side slope petrochemical layer, a second HDPE anti-seepage film layer is laid above the cobblestone layer, a compacted clay layer is laid above the second HDPE anti-seepage film layer, a press-fit plate layer is fixedly embedded on the clay layer, a floating soil layer is laid above the press-fit plate layer, a geotechnical cloth layer covers above the floating soil layer, the side slope petrochemical layer is formed by pouring asphalt, the thickness of the side slope petrochemical layer is 18-25cm, and the inner wall of the side slope petrochemical layer forms a polygonal groove. The utility model provides a landfill's prevention of seepage structure has the advantage of avoiding prevention of seepage membrane wrinkling, dislocation problem to appear.

Description

Anti-seepage structure of refuse landfill

Technical Field

The utility model relates to a landfill construction technical field especially relates to a landfill's seepage prevention structure.

Background

The impermeable layer structure of the domestic refuse landfill has the function of completely isolating refuse landfill from surrounding strata through the impermeable layer to form an independent and closed environment of the refuse landfill, and further prevent the refuse leachate from permeating underground to pollute the underground water around the landfill. The stability and the durability of the impermeable layer structure of the refuse landfill are effective to ensure the realization of the function of the refuse landfill, and the protection after the impermeable layer structure is paved is an important engineering measure in the operation process of the domestic refuse landfill.

However, in the prior art, the geotextile or the impermeable layer is easily damaged due to the pressing force of the garbage in the actual application process, so that the effect of the geotextile and the impermeable layer is greatly reduced, and the impermeable effect of the impermeable system of the landfill site is weakened to a certain extent.

Therefore, it is necessary to provide an anti-seepage structure for a landfill to solve the above technical problems.

SUMMERY OF THE UTILITY MODEL

The utility model provides a technical problem provide an prevent osmosis membrane and appear wrinkling, the landfill's of dislocation problem seepage prevention structure.

In order to solve the technical problem, the utility model provides a landfill's seepage prevention structure includes: the soil compaction and soil adhering method comprises the steps of working a real ground base layer, a cobblestone layer and a soil adhering layer, wherein a first HDPE impermeable membrane is laid above the real ground base layer, a side slope petrochemical layer is poured on the first HDPE impermeable membrane, the cobblestone layer is laid above the side slope petrochemical layer, a second HDPE impermeable membrane layer is laid above the cobblestone layer, a compacted soil adhering layer is laid above the second HDPE impermeable membrane layer, a press fit plate layer is fixedly embedded on the soil adhering layer, a soil floating layer is laid above the press fit plate layer, and a geotechnical cloth layer covers the upper side of the soil floating layer.

Preferably, the side slope petrochemical layer is formed by pouring asphalt, the thickness of the side slope petrochemical layer is 18-25cm, and the inner wall of the side slope petrochemical layer forms a polygonal groove.

Preferably, the cobblestone layer adopts cobblestones with the particle size of 5-8cm, the cobblestone layer lays the refuse landfill into a semi-elliptical shape, and the cobblestones on the surface layer of the cobblestone layer are bonded by asphalt.

Preferably, the compacted clay layer forms a trapezoidal groove in the landfill.

Preferably, the floating soil layer is laid on the laminated slab layer and the refuse landfill is laid in a semi-elliptical shape.

Preferably, the second HDPE impermeable membrane layer is fixedly embedded on the asphalt adopted on the surface of the cobblestone layer through an embedding nail.

Compared with the prior art, the utility model provides a landfill's prevention of seepage structure has following beneficial effect:

1. the asphalt surface layer of the utility model is soft and has a certain degree of elasticity, so that the bottom is embedded with the first HDPE anti-seepage film, on one hand, the first HDPE anti-seepage film is not easy to break when the side slope petrochemical layer fluctuates, and on the other hand, the first HDPE anti-seepage film can be stably installed and is not easy to wrinkle, misplace and the like;

2. the utility model discloses and the internal stress interact that pressfitting sheet layer made between the pressfitting sheet layer on the compacted muck layer constituted trapezoidal form recess and the gomphosis, avoids appearing the landslide problem of muck layer.

Drawings

Fig. 1 is a schematic structural view of a preferred embodiment of an anti-seepage structure of a refuse landfill provided by the present invention;

fig. 2 is an enlarged schematic view of a portion a shown in fig. 1.

Reference numbers in the figures: 1. the soil layer comprises a real ground base layer, 2, a first HDPE impermeable membrane, 3, a side slope stoning layer, 4, a cobble layer, 5, a second HDPE impermeable membrane layer, 6, a clay layer, 7, a press-fit plate layer, 8, a floating soil layer, 9, a geotechnical cloth layer, 9a and an embedded nail.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and embodiments.

Please refer to fig. 1 and fig. 2 in combination, wherein fig. 1 is a schematic structural diagram of a preferred embodiment of an anti-seepage structure of a landfill site provided by the present invention; fig. 2 is an enlarged schematic view of a portion a shown in fig. 1. The seepage-proofing structure of the refuse landfill comprises: a solid foundation layer 1, a cobble layer 4 and an clay layer 6.

In the specific implementation process, as shown in fig. 1 and fig. 2, a first HDPE impermeable membrane 2 is laid above a field base layer 1, a side slope stoning layer 3 is poured on the first HDPE impermeable membrane 2, the side slope stoning layer 3 is formed by pouring asphalt, the thickness of the side slope stoning layer 3 is 18-25cm, the inner wall of the side slope stoning layer 3 forms a polygonal groove, a cobblestone layer 4 is laid above the side slope stoning layer 3, a second HDPE impermeable membrane layer 5 is laid above the cobblestone layer 4, a compacted clay layer 6 is laid above the second HDPE impermeable membrane layer 5, a pressed slab layer 7 is fixedly embedded on the clay layer 6, a floating layer 8 is laid above the pressed slab layer 7, and a geotextile layer 9 is covered above the floating layer 8.

It should be noted that: pour slope petrochemical 3 that constitutes by pitch on first HDPE prevention of seepage membrane 2, because the pitch surface course is softer and have the elasticity of certain degree, consequently first HDPE prevention of seepage membrane 2 in the bottom inlays, difficult first HDPE prevention of seepage membrane 2 that causes breaks when fluctuating appears in slope petrochemical 3 on the one hand, on the other hand makes first HDPE prevention of seepage membrane 2 can install stably and is difficult for appearing wrinkling, the dislocation scheduling problem, and geotechnological cloth layer 9 is laid on topsoil layer 8, when making rubbish pile up on geotechnological cloth layer 9, can effectual sunken partly, and then avoid consequently the over-big and lead to the damage on the surface of worker's cloth layer 9 of holding power.

Referring to fig. 1, cobblestones with a particle size of 5-8cm are used as the cobblestone layer 4, the cobblestone layer 4 lays a refuse landfill in a semi-elliptical shape, cobblestones on the surface layer of the cobblestone layer 4 are bonded by asphalt, the second HDPE impermeable film layer 5 is fixedly embedded on the asphalt on the surface of the cobblestone layer 4 through the embedded nails 9a, the compacted clay layer 6 forms a trapezoidal groove on the refuse landfill, the floating soil layer 8 is laid on the laminated slab lamination 7 and lays the refuse landfill in a semi-elliptical shape, the compacted clay layer 6 forms a trapezoidal groove and is embedded on the laminated slab 7, so that the internal stress between the laminated slabs 7 interacts with each other, and the slope sliding problem of the clay layer 6 is avoided.

The utility model provides a landfill's prevention of seepage structure's theory of operation as follows:

pour the slope petrochemical 3 that constitutes by pitch on first HDPE prevention of seepage membrane 2, because the pitch surface course is softer and have certain degree elasticity, consequently first HDPE prevention of seepage membrane 2 is inlayed to the bottom, on the one hand be difficult for causing first HDPE prevention of seepage membrane 2 to break when the slope petrochemical 3 appears undulant, on the other hand makes first HDPE prevention of seepage membrane 2 can install stably difficult the wrinkling that appears, the dislocation scheduling problem, and geotechnological cloth layer 9 is laid on topsoil layer 8, make rubbish pile up when geotechnological cloth layer 9, can effectual sunken partly, and then avoid consequently the over-sized holding power and lead to the damage of work cloth layer 9 surface, and the pressfitting internal stress interact between pressfitting sheet layer 7 is made to pressfitting sheet layer 7 on the pressfitting 6 constitution trapezoidal form recess of compaction clay layer and the gomphosis, avoid appearing the landslide problem of clay layer 6.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

The above is only the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes of the present invention can be used in other related technical fields, directly or indirectly, or in the same way as the present invention.

Claims

1. An impermeable structure of a landfill site, comprising:

the anti-seepage device comprises a solid base layer (1), wherein a first HDPE (high-density polyethylene) anti-seepage film (2) is laid above the solid base layer (1), and a side slope petrochemical layer (3) is poured on the first HDPE anti-seepage film (2);

the cobble layer (4) is laid above the side slope cobble layer (3), and a second HDPE impervious film layer (5) is laid above the cobble layer (4);

the clay layer (6) is paved above the second HDPE anti-seepage film layer (5) in a compacting mode, the clay layer (6) is fixedly embedded with the press-fit plate layer (7), the floating layer (8) is paved above the press-fit plate layer (7), and the geotextile layer (9) covers the upper portion of the floating layer (8).

2. The landfill yard seepage prevention structure according to claim 1, wherein the slope petrochemical layer (3) is formed by pouring asphalt, the thickness of the slope petrochemical layer (3) is 18-25cm, and the inner wall of the slope petrochemical layer (3) forms a polygonal groove.

3. The landfill yard seepage prevention structure according to claim 1, wherein the cobblestone layer (4) adopts cobblestones with the particle size of 5-8cm, the cobblestone layer (4) lays the landfill yard in a semi-elliptical shape, and the cobblestones on the surface layer of the cobblestone layer (4) are bonded by asphalt.

4. Landfill seepage prevention structure according to claim 1, characterized in that the compacted clay layer (6) forms the landfill into trapezoidal shaped grooves.

5. The landfill site seepage prevention structure according to claim 1, wherein the floating layer (8) is laid on the pressed slab layer (7) and the landfill site is laid in a semi-elliptical shape.

6. The landfill site seepage prevention structure according to claim 1, wherein the second HDPE seepage prevention film layer (5) is fixedly embedded on asphalt adopted on the surface of the cobble layer (4) through an embedding nail (9 a).