CN219491069U - Refuse blocking dam for refuse landfill - Google Patents

Abstract

The utility model discloses a refuse landfill slag blocking dam which is provided with a water-proof layer at the bottom and is characterized by comprising a baffle wall vertically extending to the water-proof layer, and an inner dam body and an outer dam body which are built on the ground surface and lean against the inner side and the outer side of the baffle wall respectively, wherein a connecting piece is arranged between the inner dam body and the baffle wall and between the outer dam body and the baffle wall. The barrier wall extends to the water-proof layer, cooperates with the water-proof layer to play a role in blocking leakage of landfill leachate, and the inner dam body, the outer dam body and the connecting piece are integrated with the barrier wall to strengthen the barrier wall, so that the overall manufacturing cost is reduced.

Description

Refuse blocking dam for refuse landfill

Technical Field

The application relates to the technical field of pollution risk management and control of refuse landfill, in particular to a refuse landfill slag blocking dam with an anti-seepage function.

Background

Sanitary landfill is one of the main disposal modes, and a barrier wall for blocking garbage is built around a landfill site to limit the periphery of garbage pollution, but the existing barrier wall only has a mechanical supporting function, and after the garbage is soaked by rain or liquid in soil, garbage percolate containing toxic and harmful pollutants is formed to infiltrate into an underground water layer and then passes through the wall body along with the underground water to pollute other areas.

Disclosure of Invention

The application provides a landfill site slag dam can effectively prevent landfill leachate seepage.

The application provides a refuse landfill slag blocking dam, the refuse landfill has the water-proof layer that is in the bottom, the slag blocking dam includes vertical extension to the barrier wall of water-proof layer and build in the earth's surface and lean on respectively in the interior dam body of barrier wall, outer both sides and outer dam body, be provided with the connecting piece between interior dam body and outer dam body and the barrier wall.

The following provides several alternatives, but not as additional limitations to the above-described overall scheme, and only further additions or preferences, each of which may be individually combined for the above-described overall scheme, or may be combined among multiple alternatives, without technical or logical contradictions.

Optionally, the inner dam body has a weight protruding inward.

Optionally, the protruding width of the weight portion gradually decreases as the height thereof decreases.

Optionally, the outer dam has a base portion that is close to the ground surface and protrudes outward.

Optionally, the partition wall comprises a metal framework and a casting body.

Optionally, the connecting piece is a lacing wire embedded into the pouring body, and two ends of the lacing wire extend into the outer dam body and the inner dam body.

Optionally, the portion of the tie bars extending into the outer dam body and the inner dam body is provided with a radially-enlarged anti-drop member.

Optionally, the metal framework is formed by criss-cross steel reinforcement cages.

Optionally, the pouring body is embedded into the inner dam body and the outer dam body at intervals of a certain height.

The refuse landfill of this application blocks cinder dam, the baffle wall extends to the water-proof layer, with the effect that blocks the infiltration of landfill leachate with water-proof layer synergism, interior, outer dam body and connecting piece and baffle wall form an organic wholely, have played the reinforcement effect to the baffle wall, have reduced holistic manufacturing cost.

Drawings

FIG. 1 is a schematic view of a refuse landfill dam according to an embodiment of the present application;

FIG. 2 is a cross-sectional view of a landfill dam according to an embodiment of the present application;

FIG. 3 is an enlarged view of a portion of one side of the connector of FIG. 2;

FIG. 4 is a diagram showing a metal skeleton in a refuse landfill dam according to an embodiment of the present application;

fig. 5 is a partial cross-sectional view of a landfill dam according to an embodiment of the present application.

Reference numerals in the drawings are described as follows:

1. a landfill; 11. a water-resistant layer;

2. a slag blocking dam; 21. a barrier wall; 211. a metal skeleton; 213. casting a body; 23. an inner dam body; 231. a weight part; 25. an outer dam body; 251. a base; 27. a connecting piece; 271. an anti-falling member;

3. a surface; 4. and (5) monitoring equipment on line.

Detailed Description

The following description of the technical solutions in the embodiments of the present application will be made clearly and completely with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.

It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. When an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

In this application, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number, order 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 "plurality" is at least two, such as two, three, etc., unless explicitly defined otherwise.

Referring to fig. 1 and 2, a refuse landfill dam 1 of the present application has a water-blocking layer 11 at the bottom, a dam 2 includes a barrier wall 21 vertically extending to the water-blocking layer 11, and an inner dam 23 and an outer dam 25 built on the ground surface 3 and respectively leaning against the inner and outer sides of the barrier wall 21, and a connecting member 27 is provided between the inner and outer dams 23 and 25 and the barrier wall 21.

Wherein the inner side and the outer side are divided by the partition wall 21, and the landfill site is the inner side on one side and the outer side on the opposite side. The arrangement of the barrier wall 21 may be at least: the baffle wall 21 is arranged around the landfill site 1; or the barrier wall 21 is provided at a downstream side of the groundwater layer.

The water-resistant layer 11 is positioned below the groundwater layer, and the groundwater layer can be ensured not to leak. The barrier wall 21 is embedded into the ground and extends to the water-resisting layer 11, and has the capacity of blocking the leakage of the landfill leachate, so that the landfill leachate can be blocked by the cooperation of the barrier wall 21 and the water-resisting layer 11. In view of the great difficulty of construction and high manufacturing cost of the barrier wall 21, the structural strength of the barrier wall is improved by clamping the inner dam body and the outer dam body against the barrier wall 21 on the ground surface. The connecting piece 27 connects the inner dam body, the outer dam body and the baffle wall 21 into a whole, and the inner dam body, the outer dam body and the baffle wall 21 are mutually pulled to improve the overall structural strength. And the baffle wall 21 is positioned between the inner dam body and the outer dam body, so that the influence of natural environment (such as rain erosion, wind erosion and the like) on the baffle wall 21 is reduced, and the service life is prolonged.

In the preferred embodiment, the barrier wall 21 extends two meters into the water barrier 11 to enhance the barrier.

As shown in FIG. 1, in one embodiment, the inner dam 23 has inwardly protruding weights 231. The device is used for counteracting acting force acting on the slag dam after the garbage is piled up, and improving mechanical support of the slag dam. Preferably, the protruding width of the weight 231 gradually decreases as the height thereof decreases. That is, a receiving space is formed at the bottom of the weight 231, and the receiving space may be used to intercept the falling garbage.

In one embodiment, the outer dam 25 has a base 251 that is adjacent the ground surface and projects outwardly. In the illustration, the base 251 is positioned at the bottom against the ground surface, providing support and lowering the center of gravity of the slag dam, improving structural stability.

The construction process for the barrier wall 21: the barrier wall 21 includes a metal skeleton 211 and a casting body. As shown in fig. 4, the metal skeleton 211 may be formed by reinforcement cages that are criss-cross, and the casting body may be an impermeable concrete structure.

As shown in fig. 2 and 3, the connecting member 27 is a tie bar embedded in the casting body 213, and the extending direction of the tie bar is along the thickness direction of the slag dam, and two ends of the tie bar extend into the outer dam body 25 and the inner dam body 23 respectively. Improving the stretch-proof capability of the slag dam. Preferably, the portion of the tie bars extending into the outer and inner dams 25, 23 is provided with radially enlarged anti-drop members 271, and the anti-drop members 271 are embedded into the corresponding dam to further enhance the integration of the inner and outer dams and the barrier wall 21. The drop-out preventing member 271 may be an anchor bolt fixed to the tie bar in a threaded connection or welded manner.

The inner and outer dams are typically built by mixing natural stone and cement mortar, as shown in fig. 5, and in one embodiment, the casting body 213 is embedded in the inner dam 23 and the outer dam 25 at regular intervals. The concrete implementation is that after the inner dam body and the outer dam body are stacked to a certain height, for example, two meters, the partition wall 21 is partially extended and positioned on the pouring body 213 of the inner dam body and the outer dam body, and then the inner dam body and the outer dam body are continuously stacked to two meters above the pouring body 213, and the structural strength of the inner dam body and the outer dam body is improved repeatedly.

Referring back to fig. 1, in an embodiment, the blocking wall 21 and the side close to the landfill site 1 are provided with bored piles, the inside is provided with an on-line monitoring device 4, and once the landfill leachate leaks from the inner side of the slag blocking dam, the landfill leachate can be identified and alerted by the on-line monitoring device, so that the leakage point can be conveniently identified and remedial measures can be taken.

The refuse landfill slag dam reduces manufacturing cost, and maintains or even improves structural strength after the structure is optimized. The inner dam body and the outer dam body wrap the barrier wall, so that the influence of natural environment on the barrier wall is reduced, and the service life of the dam body is prolonged. An on-line monitoring device is also provided to perform monitoring of the state of the barrier wall.

The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description. When technical features of different embodiments are embodied in the same drawing, the drawing can be regarded as a combination of the embodiments concerned also being disclosed at the same time.

The foregoing examples represent only a few embodiments of the present application, which are described in more detail and are not thereby to be construed as limiting the scope of the claims. It should be noted that it would be apparent to those skilled in the art that various modifications and improvements could be made without departing from the spirit of the present application, which would be within the scope of the present application.

Claims (9)

1. The refuse landfill slag blocking dam is provided with a water blocking layer at the bottom and is characterized by comprising a blocking wall vertically extending to the water blocking layer, an inner dam body and an outer dam body which are built on the ground surface and lean against the inner side and the outer side of the blocking wall respectively, and connecting pieces are arranged between the inner dam body and the outer dam body and between the inner dam body and the blocking wall.

2. The landfill skim dam of claim 1, wherein the inner dam body has an inwardly protruding weight.

3. The landfill site dam according to claim 2, wherein the protrusion width of the weight portion is gradually reduced as the height thereof is reduced.

4. The landfill skim dam of claim 1, wherein the outer dam body has a base portion adjacent the ground surface and protruding outwardly.

5. The landfill site dam of claim 1, wherein the barrier wall comprises a metal skeleton and a casting body.

6. The landfill slag dam of claim 5, wherein the connecting piece is a tie bar embedded in the casting body, and two ends of the tie bar extend into the outer dam body and the inner dam body.

7. The landfill slag dam of claim 6, wherein the portion of the tie bars extending into the outer and inner dams is provided with radially enlarged anti-drop members.

8. The landfill slag dam of claim 5, wherein the metal framework is comprised of crisscrossed reinforcement cages.

9. The landfill slag dam of claim 5, wherein the casting body is embedded into the inner and outer dams at regular intervals.