CN211421328U

CN211421328U - Rigid landfill

Info

Publication number: CN211421328U
Application number: CN201922432274.9U
Authority: CN
Inventors: 庄雪龙; 殷小婷
Original assignee: Yumen Tianrun High Tech New Technology Co ltd
Current assignee: Yumen Tianrun High Tech New Technology Co ltd
Priority date: 2019-12-30
Filing date: 2019-12-30
Publication date: 2020-09-04
Anticipated expiration: 2029-12-30

Abstract

The utility model discloses a rigid landfill site, including reinforced concrete wall A and reinforced concrete bottom plate, reinforced concrete wall A is perpendicular fixed connection in reinforced concrete bottom plate upper surface to divide into a plurality of reservoir areas with this rigid landfill site, leave the clearance between the reinforced concrete wall A of adjacent the reservoir area, the reservoir area is divided into a plurality of units by reinforced concrete wall B, lay flexible artifical lining in the unit; the utility model is divided into a plurality of reservoir areas, each reservoir area is divided into a plurality of cells, and classified landfill of the waste can be realized after the waste is classified; and a gap is arranged between the reservoir areas, so that each reservoir area becomes an independent unit, and a large-scale landfill is formed by a plurality of units, thereby avoiding the condition that the leachate of the whole landfill leaks because of the fracture of a bottom plate or the damage of a flexible artificial lining caused by the instability of a geological structure.

Description

Rigid landfill

Technical Field

The utility model belongs to the technical field of the landfill, concretely relates to rigidity landfill.

Background

With the current environment protection situation becoming more and more severe, the industrial solid waste is subjected to reduction, recycling and harmless treatment, but each treatment mode generates a large amount of ash, and the ash contains a large amount of unprocessed heavy metal substances and part of toxic and harmful substances, so that the ash still belongs to dangerous waste and finally enters a landfill site for safe landfill after being stabilized.

Present rigidity landfill, because its bottom plate and box side wall formula structure as an organic whole, after carrying out the discarded object landfill, if the unstable bottom plate fracture that appears of geological structure, will lead to the leachate to leak, easily to soil, groundwater produces the pollution, cause serious environmental pollution, if will restore the bottom plate and need restore again with all discarded object clearance in the reservoir area, the engineering volume is great, and because there is no leachate collection device, leachate in the discarded object collects bottom the reservoir area easily, reduce the life of flexible artifical lining.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a relatively independent is provided, and leachate can be collected, the rigidity landfill site of avoiding leachate to leak in a large number.

For solving the problem a rigidity landfill, including reinforced concrete wall A and reinforced concrete bottom plate, reinforced concrete wall A perpendicular fixed connection in reinforced concrete bottom plate upper surface to become a plurality of reservoir districts with this rigidity landfill, adjacent the reservoir district leave the clearance between the reinforced concrete wall A, the reservoir district is divided into a plurality of units by reinforced concrete wall B, flexible artifical lining has been laid to the unit inscription.

Further, the flexible artificial lining is laid on the inner surfaces of the reinforced concrete wall A and the reinforced concrete wall B and the bottom surfaces of the units.

Further, the flexible artificial lining layer sequentially comprises a composite geonet, an impermeable membrane, a non-woven fabric A and a non-woven fabric B from inside to outside.

Further, a concrete layer is laid on the bottom surface of the unit below the composite geotechnical net.

Furthermore, a pebble layer is further paved in the flexible artificial lining layer on the bottom surface of the unit, and the pebble layer is paved between the non-woven fabric A and the non-woven fabric B.

Further, the lowest department of cobble layer is provided with the leachate collecting pipe, a plurality of holes have been seted up on leachate collecting pipe surface, the leachate collecting pipe passes through the leachate collecting branch pipe and is connected with leachate collecting header pipe, leachate collecting header pipe lays in the clearance.

Further, the concrete layer upper surface is for leaking hopper-shaped, and the net drainage tank has been seted up to the lower extreme of this upper surface, the net drainage tank passes through the drainage branch pipe and is connected with main drainage pipe, main drainage pipe lays in the clearance.

Compared with the prior art, the utility model has the following advantage:

(1) the rigid landfill site of the utility model is divided into a plurality of reservoir areas, each reservoir area is divided into a plurality of units, and classified landfill of the wastes can be realized after the wastes are classified; and a gap is arranged between the reservoir areas, so that each reservoir area becomes an independent area, and a large-scale landfill is formed by a plurality of reservoir areas, thereby avoiding the condition that the leachate of the whole landfill leaks because of the fracture of a bottom plate or the damage of a flexible artificial lining caused by the instability of a geological structure.

(2) The utility model discloses a set landfill storehouse district bottom to leak hopper-shaped, leachate and groundwater in the discarded object will be concentrated respectively together, then leachate collects the branch pipe through the leachate and collects and carries to leachate collecting pit centralized processing after collecting the house steward to the leachate, groundwater is carried to groundwater collecting pit centralized processing after collecting the drainage house steward through the drainage branch pipe, collect leachate and groundwater through leachate collecting pipe and groundwater collecting pipe and concentrate, avoid leachate and groundwater to produce the corruption to the soaking of flexible artifical lining.

(3) The utility model discloses laid flexible artifical lining bottom landfill unit and reinforced concrete wall surface all around, this flexible artifical lining is from inside to outside including compound geotechnological net, prevent osmosis membrane, non-woven fabrics A, non-woven fabrics B, wherein non-woven fabrics A, non-woven fabrics B, compound geotechnological net will play effectual guard action to the prevention of seepage membrane that sets up in the middle, avoid the damage to appear in the prevention of seepage membrane in the work progress, prevent that non-woven fabrics A above the osmosis membrane, non-woven fabrics B also can play certain prevention of seepage effect simultaneously, the risk of leachate infiltration leakage has been reduced.

Drawings

Fig. 1 is a front sectional view of the present invention.

Fig. 2 is a top view of fig. 1.

Fig. 3 is an enlarged view of a portion a in fig. 1.

In the figure: 1. the concrete wall comprises reinforced concrete walls A, 2, a reinforced concrete bottom plate, 3, a concrete layer, 4, a composite geotechnical net, 5, an impermeable membrane, 6, non-woven fabrics A, 7, a pebble layer, 8, non-woven fabrics B, 9, a grid drainage groove, 10, a drainage branch pipe, 11, a drainage main pipe, 12, a gap, 13, a leachate collection main pipe, 14, a leachate collection pipe, 15, a leachate collection branch pipe, 16, a reservoir area, 17, a unit, 18 and a reinforced concrete wall B.

Detailed Description

Before construction, a rigid landfill site is excavated to a designed depth according to site-selection geological structure conditions and the designed landfill site depth, then a foundation layer is compacted and flattened, and a reinforced concrete bottom plate 2 and a reinforced concrete wall A1 are constructed; the reinforced concrete wall A1 is vertically and fixedly connected to the upper surface of the reinforced concrete bottom plate 2, the rigid landfill site is divided into a plurality of reservoir areas 16, gaps 12 are reserved between the reinforced concrete walls A1 of the adjacent reservoir areas 16, the reservoir areas 16 are divided into a plurality of units 17 by the reinforced concrete walls B18, flexible artificial linings are laid in the units 17 and are laid on the inner surfaces of the reinforced concrete walls A1 and the reinforced concrete walls B18 and the bottom surfaces of the units 17; the flexible artificial lining layer sequentially comprises a composite geonet (4), an impermeable membrane (5), a non-woven fabric A (6) and a non-woven fabric B (8) from inside to outside; a concrete layer (3) is laid on the bottom surface of the unit (17) below the composite geonet (4), the upper surface of the concrete layer (3) is funnel-shaped, a grid drainage groove (9) is formed in the lowest end of the upper surface, the grid drainage groove (9) is connected with a main drainage pipe (11) through a drainage branch pipe (10), and the main drainage pipe (11) is laid in the gap (12); still laid in the flexible artificial lining layer of unit (17) bottom surface cobble layer (7), cobble layer (7) are laid between non-woven fabrics A (6) and non-woven fabrics B (8), the lower of cobble layer (7) is provided with leachate collecting pipe (14), a plurality of holes have been seted up on leachate collecting pipe (14) surface, leachate collecting pipe (14) are connected with leachate collecting main pipe (13) through leachate collecting branch pipe (15), leachate collecting main pipe (13) are laid in clearance (12).

The working process of the utility model is as follows:

after the construction of the landfill site is completed, the solid waste to be buried is transported to the landfill site through vehicles, and then the solid waste is buried in each unit 17 in the reservoir area 16 through transfer equipment such as a loader, a conveyor belt, a trolley and the like, and the landfill site is sealed after being filled; along with the lapse of time, the leachate and after closing the field carried in the discarded object itself, because the liquid that the microbiological reaction or chemical reaction produced will be under the effect of gravity of the earth center, deposit downwards gradually, enter the pebble layer 7 after permeating non-woven fabrics B8, lay the impervious membrane 5 under the non-woven fabrics A6 of pebble layer 7 bottom, prevent further infiltration of leachate, because concrete layer 3 sets up to be hopper-shaped, the leachate collects in the lowest place in the pebble layer 7 under the action of gravity, leachate collecting pipe 14 sets up in the lowest place of pebble layer 7, finally collect in leachate collecting pipe 14, collect the leachate to leachate collecting main pipe 13 through leachate collecting branch pipe 15 and transport to the leachate collecting tank centralized processing.

If groundwater level rises for groundwater oozes on the water, and groundwater is behind infiltration through reinforced concrete bottom plate 2 and concrete layer 3, prevents that osmosis membrane 5 prevents groundwater from further upwards permeating, and groundwater flows into net water drainage tank 9 along the slope under the action of gravity 3 surfaces on concrete layer, gets into drainage house steward 11 through drainage branch pipe 10, collects to the groundwater collecting pit through drainage house steward 11.

Because the utility model discloses divide into a plurality of reservoir areas 16, gapped 12 between the adjacent reservoir area 16, separate into a plurality of units 17 through reinforced concrete wall B18 in the reservoir area 16, after geological disasters such as earthquake take place, lead to the underground landfill impaired, or flexible artifical lining became invalid, when needing to restore the landfill, only need to dig out the solid waste in impaired reservoir area 16 or the unit 17, later carry out the restoration operation, the condition of the leachate leakage of whole landfill has been avoided.

Claims

1. A rigid landfill comprising a reinforced concrete wall A (1) and a reinforced concrete floor (2), characterized in that: the reinforced concrete wall A (1) is vertically and fixedly connected to the upper surface of the reinforced concrete bottom plate (2), the rigid landfill site is divided into a plurality of reservoir areas (16), gaps (12) are reserved between the reinforced concrete walls A (1) of the adjacent reservoir areas (16), the reservoir areas (16) are divided into a plurality of units (17) by reinforced concrete walls B (18), and flexible artificial linings are laid in the units (17).

2. A rigid landfill site according to claim 1, wherein: the flexible artificial lining is laid on the inner surfaces of the reinforced concrete wall A (1) and the reinforced concrete wall B (18) and the bottom surfaces of the units (17).

3. A rigid landfill site according to claim 2, wherein: the flexible artificial lining layer sequentially comprises a composite geonet (4), an impermeable membrane (5), a non-woven fabric A (6) and a non-woven fabric B (8) from inside to outside.

4. A rigid landfill site according to claim 3, wherein: and a concrete layer (3) is laid on the bottom surface of the unit (17) below the composite geonet (4).

5. A rigid landfill site according to claim 3 or claim 4, wherein: still lay cobble layer (7) in the flexible artificial lining of unit (17) bottom surface, cobble layer (7) are laid between non-woven fabrics A (6) and non-woven fabrics B (8).

6. A rigid landfill site according to claim 5, wherein: the minimum of cobble layer (7) is provided with leachate collecting pipe (14), a plurality of holes have been seted up on leachate collecting pipe (14) surface, leachate collecting pipe (14) are collected branch pipe (15) and are collected house steward (13) with the leachate and are connected through the leachate, leachate is collected house steward (13) and is laid in clearance (12).

7. A rigid landfill site according to claim 4, wherein: concrete layer (3) upper surface is for leaking hopper-shaped, and net drainage tank (9) have been seted up to the lower extreme of this upper surface, net drainage tank (9) are connected with main drainage pipe (11) through drainage branch pipe (10), main drainage pipe (11) are laid in clearance (12).