CN217419751U

CN217419751U - Slope slip casting reinforcement type protective structure of rubbish filling field

Info

Publication number: CN217419751U
Application number: CN202220946315.5U
Authority: CN
Inventors: 刘卫涛; 王姝馨; 李丹锋; 宋军伟; 林哲峰
Original assignee: Luoyang Baijian Geotechnical Engineering Co ltd
Current assignee: Luoyang Baijian Geotechnical Engineering Co ltd
Priority date: 2022-04-23
Filing date: 2022-04-23
Publication date: 2022-09-13
Anticipated expiration: 2032-04-23

Abstract

The utility model belongs to the technical field of the landfill technique and specifically relates to a landfill side slope slip casting reinforcement type protective structure is disclosed, including the shotcrete layer of pouring shaping at the landfill hole domatic and slope bottom, the shotcrete layer includes the closely knit layer of the high pressure slip casting on grout liquid layer and the cement grout layer surface with the soil layer contact, the closure has been laid on shotcrete layer surface. Has the advantages that: the side wall of the landfill pit is drilled and poured with the sprayed concrete layer to reinforce the slope surface, the compactness and the compressive property of the side slope are improved, the compressive capacity and the seepage-proofing property of the side wall and the bottom of the pit body can be improved through the arrangement of the sealing layer and the seepage-proofing protection film layer, the phenomenon that waste water permeates into underground polluted underground water is avoided, accumulated liquid generated in garbage can be discharged into a liquid storage vertical well through the diversion branch pipe and the diversion header pipe, then the accumulated liquid is discharged to sewage treatment equipment through the pumping and discharging pipe to carry out environment-friendly treatment, and the environment pollution is avoided.

Description

Slope slip casting reinforcement type protective structure of rubbish filling field

Technical Field

The utility model belongs to the technical field of the refuse landfill technique and specifically relates to a rubbish landfill slope slip casting reinforcement type protective structure is related to.

Background

During the process of stacking and burying garbage in a garbage landfill site, leachate is generated due to fermentation, rain water drenching and surface water soaking. The leachate has complex components and contains toxic substances which are difficult to degrade, thus causing serious pollution easily. In order to prevent toxic and harmful pollutants in leachate from polluting soil bodies and underground water sources, the garbage and surrounding soil bodies need to be separated, anti-seepage treatment must be considered in the design process of a landfill, in order to achieve the purpose, the landfill needs to be provided with an anti-seepage layer on a landfill area, and the anti-seepage layer formed by geomembrane, GCL and the like is the most common anti-seepage method.

The traditional method for protecting the side slope impermeable layer is to fill woven bags with gravels on the side slope impermeable layer for weight reduction protection, so as to prevent the impermeable layer from being damaged by sharp objects or compactors in the garbage during the flattening and compacting processes. However, in rainy days, the sand bag easily absorbs a great amount of water, the slope load is increased to cause the sliding or collapse of the protective layer, and the lower impermeable layer can slide seriously to cause large-area damage of the impermeable layer.

Disclosure of Invention

The utility model provides a rubbish full-filling side slope slip casting reinforcement type protective structure exactly in order to solve above-mentioned problem.

The technical scheme of the utility model is realized like this:

a side slope grouting reinforcement type protective structure of a refuse landfill site comprises a sprayed concrete layer which is poured and formed on the slope surface and the slope bottom of a refuse landfill site, wherein the sprayed concrete layer comprises a cement slurry layer in contact with the soil layer and a high-pressure grouting dense layer on the surface of the cement slurry layer, a sealing layer is paved on the surface of the sprayed concrete layer, the sealing layer is connected with the sprayed concrete layer, at least one anti-seepage protective film layer is coated on the surface of the sealing layer, a slag filling layer is paved in the space above the anti-seepage protective film layer at the bottom of the refuse landfill site, a plurality of flow guide branch pipes are pre-buried in the slag filling layer, the end parts of all the flow guide branch pipes are communicated through a flow guide header pipe, a permeable net is paved on the surface of the slag filling layer, a liquid storage shaft is built at one corner of the bottom of the refuse landfill site, and the flow guide header pipe is communicated into the liquid storage shaft, and a drainage pipe is laid on the side wall of the refuse landfill pit, and one end of the drainage pipe is communicated to the bottom in the liquid storage vertical shaft.

Furthermore, a reinforcing mesh is embedded in the cement grout layer, and the depth of the cement grout layer is three meters.

Furthermore, the sealing layer is made of reinforced concrete, and the thickness of the sealing layer is not less than twenty centimeters.

Furthermore, the pumping and exhausting pipe is embedded in the sealing layer.

Furthermore, a plurality of water permeable holes are formed in the upper surface of each flow guide branch pipe, and the upper surface of each flow guide branch pipe is not more than the upper surface of the slag filling layer.

Further, the liquid storage vertical shaft is made of a stainless steel barrel, and the upper surface of the liquid storage vertical shaft is flush with the upper surface of the sealing layer.

Furthermore, a layer of concrete ground is laid at a position, close to the refuse landfill pit, on the ground, a drainage groove is built at one end, close to the refuse landfill pit, of the concrete ground, and a water permeable plate covers the surface of the drainage groove.

By adopting the technical scheme, the beneficial effects of the utility model are that: can consolidate domaticly through drilling pouring shotcrete layer on landfill hole lateral wall, improve the closely knit degree and the compressive property of side slope, setting up through closing layer and prevention of seepage protection rete can improve the compressive capacity and the prevention of seepage performance of hole lateral wall and bottom, avoid waste water infiltration underground pollution groundwater, can discharge the hydrops that produces in the rubbish in the stock solution shaft through water conservancy diversion branch pipe and water conservancy diversion house steward, then utilize the row of taking out calandria to discharge sewage treatment device and carry out environmental protection, avoid the polluted environment.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the description below are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive labor.

Fig. 1 is a schematic structural diagram of the present invention;

fig. 2 is a plan view of the present invention.

The reference numerals are explained below:

1. spraying a concrete layer; 2. a cement slurry liquid layer; 3. grouting a dense layer at high pressure; 4. a sealing layer; 5. an anti-seepage protective film layer; 6. a slag filling layer; 7. a diversion branch pipe; 8. a flow guide header pipe; 9. a permeable web; 10. a tube drawing and discharging tube; 11. a drainage groove; 12. a concrete floor; 13. and a liquid storage vertical shaft.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without making creative efforts belong to the protection scope of the present invention.

As shown in fig. 1-2, a slope grouting reinforced protection structure for a refuse landfill comprises a sprayed concrete layer 1 poured on the slope surface and the slope bottom of a refuse landfill pit, wherein the sprayed concrete layer 1 comprises a cement slurry layer 2 in contact with the soil layer and a high-pressure grouting dense layer 3 on the surface of the cement slurry layer 2 to form the slope soil mass grouting reinforced protection structure, a reinforcement mesh is pre-embedded in the cement slurry layer 2, the depth of the cement slurry layer 2 is three meters, a sealing layer 4 is laid on the surface of the sprayed concrete layer 1, the sealing layer 4 is connected with the sprayed concrete layer 1, the sealing layer 4 is made of reinforced concrete, the thickness of the sealing layer 4 is not less than twenty centimeters, the strength and the bearing capacity can be improved, the refuse landfill pit cannot collapse when a large amount of refuse is dumped, and sewage in the refuse cannot permeate into the ground, the surface coating of seal 4 has at least one deck prevention of seepage protection rete 5, further improves the prevention of seepage performance of landfill hole side slope and bottom, and landfill hole bottom position is in one deck slay filling layer 6 has been laid to the space of prevention of seepage protection rete 5 top, forms slip casting reinforcement protective structure's protection and reinforcing structure, pre-buried in slay filling layer 6 has a plurality of water conservancy diversion branch pipes 7, and water conservancy diversion branch pipe 7 upper surface shaping has a plurality of hole of permeating water, and water conservancy diversion branch pipe 7 upper surface is no longer than the upper surface of slay filling layer 6, all the tip of water conservancy diversion branch pipe 7 communicates through a water conservancy diversion house steward 8, utilizes slay filling layer 6 to protect water conservancy diversion branch pipe 7 and water conservancy diversion house steward 8, can filter the infiltration liquid down simultaneously, avoids blockking up the hole of permeating water, the slay filling layer 6 surface is laid and is penetrated net 9, through the multilayer protection, the side slope soil body is ensured to be stable, the infiltration of leachate into the soil body is effectively prevented, a liquid storage shaft 13 is built at one corner of the bottom of the refuse landfill, the liquid storage shaft 13 is made of a stainless steel barrel and is used for storing the effusion in the refuse, the upper surface of the liquid storage shaft 13 is flush with the upper surface of the sealing layer 4, the guide main pipe 8 is communicated into the liquid storage shaft 13, the side wall of the refuse landfill pit is paved with a drainage pipe 10, the drainage pipe 10 is embedded in the sealing layer 4, the damage of the drainage pipe 10 can be avoided, one end of the drainage pipe 10 is communicated to the inner bottom of the liquid storage shaft 13, the effusion is conveniently cleaned, the other end of the drainage pipe 10 is connected with a leachate regulating tank, the leachate can be treated in an environment-friendly manner, a layer of concrete ground 12 is paved at a position close to the refuse landfill pit on the ground, the rainwater is prevented from infiltrating into the side slope of the refuse landfill pit, and therefore the side slope is prevented from collapsing, drainage groove 11 has been built to the one end that concrete ground 12 is close to the landfill hole, and 11 surface coverings in drainage groove have the porous disk, make things convenient for the rainwater pump drainage, reduce the rainfall volume that flows into in the landfill hole.

The utility model discloses a construction method does: during construction, steel meshes are laid on the slope and the bottom of a landfill pit, C20 spray is sprayed to seal the surface to form a cement slurry layer 2, a high-pressure grouting dense layer 3 is poured on the surface of the cement slurry layer 2, the cement slurry layer 2 and the high-pressure grouting dense layer 3 jointly form a sprayed concrete layer 1 to protect the side slope and the slope bottom, a sealing layer 4 is poured on the surface of the sprayed concrete layer 1, a drainage pipe 10 is pre-buried in the sealing layer 4 when the sealing layer 4 is poured, a diversion branch pipe 7 and a diversion header pipe 8 are laid, coal ash is scattered on the surface of the laid drainage pipe to compact the drainage pipe to form a slag filling layer 6, a penetration net 9 is laid on the surface of the slag filling layer 6 after leveling, a drainage groove 11 is excavated at the edge of the landfill pit and a concrete ground 12 is laid, and the drainage pipe 10 and the drainage groove 11 are communicated with sewage treatment equipment.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a rubbish fills up side slope slip casting reinforcement type protective structure which characterized in that: comprises a sprayed concrete layer (1) which is poured and formed on the slope surface and the slope bottom of a refuse landfill pit, wherein the sprayed concrete layer (1) comprises a cement slurry layer (2) which is in contact with a soil layer and a high-pressure grouting dense layer (3) on the surface of the cement slurry layer (2), a closed layer (4) is laid on the surface of the sprayed concrete layer (1), the closed layer (4) is connected with the sprayed concrete layer (1), at least one anti-seepage protection film layer (5) is coated on the surface of the closed layer (4), one slag filling layer (6) is laid in the space above the anti-seepage protection film layer (5) at the bottom of the refuse landfill pit, a plurality of diversion branch pipes (7) are pre-embedded in the slag filling layer (6), the end parts of all the diversion branch pipes (7) are communicated through a diversion header pipe (8), and a seepage net (9) is laid on the surface of the slag filling layer (6), a liquid storage vertical shaft (13) is built at one corner of the bottom of the refuse landfill, the flow guide header pipe (8) is communicated into the liquid storage vertical shaft (13), a drainage pipe (10) is paved on the side wall of the refuse landfill, and one end of the drainage pipe (10) is communicated to the bottom in the liquid storage vertical shaft (13).

2. The refuse landfill slope slip casting reinforcement type protective structure of claim 1, characterized in that: reinforcing meshes are pre-embedded in the cement slurry liquid layer (2), and the depth of the cement slurry liquid layer (2) is three meters.

3. The refuse landfill slope slip casting reinforcement type protective structure of claim 2, characterized in that: the sealing layer (4) is made of reinforced concrete, and the thickness of the sealing layer (4) is not less than twenty centimeters.

4. The slope grouting reinforcement type protection structure of the refuse landfill, according to claim 3, is characterized in that: the exhaust pipe (10) is embedded in the closed layer (4).

5. The slope grouting reinforcement type protection structure of the refuse landfill, according to claim 4, is characterized in that: a plurality of water permeable holes are formed in the upper surface of each flow guide branch pipe (7), and the upper surface of each flow guide branch pipe (7) does not exceed the upper surface of the slag filling layer (6).

6. The slope grouting reinforcement type protection structure for the refuse landfill according to claim 5, characterized in that: the liquid storage vertical shaft (13) is made of a stainless steel barrel, and the upper surface of the liquid storage vertical shaft (13) is flush with the upper surface of the sealing layer (4).

7. The slope grouting reinforcement type protection structure of the refuse landfill, according to claim 6, is characterized in that: a layer of concrete ground (12) is laid at a position close to a refuse landfill pit on the ground, the concrete ground (12) is close to one end of the refuse landfill pit, a drainage groove (11) is built at one end of the refuse landfill pit, and a water permeable plate covers the surface of the drainage groove (11).