Slope seepage-proof membrane pressure weight structure

Abstract

The utility model relates to garbage landfill site closing field technical field discloses a kind of slope anti-seepage membrane pressure weight structures, including slope, slope surface is laid with anti-seepage membrane, and slope is arranged with anchoring ditch at certain height interval, and pressure weight structure includes weight block and pressure weight pipe, wherein, weight block is full in anchoring ditch and anti-seepage membrane is pressed into anchoring ditch, drainage through-hole is provided on weight block, pressure weight pipe is arranged at interval between upper and lower adjacent two anchoring ditches and is pressed on anti-seepage membrane, at least one end of pressure weight pipe is fixedly connected with one of weight block in anchoring ditch of higher position. By being provided with weight block with drainage hole in anchoring ditch, and being provided with hollow pressure weight pipe on the anti-seepage membrane of slope to connect with drainage hole, it is realized that weight structure is better adjusted while conducting flow to percolate liquid, solve the technical problem that slope pressure weight structure is not easy to adjust and lacks the flow guide device of percolate liquid in prior art.

Description

Technical Field

[0001] This utility model relates to the field of landfill closure technology, specifically to a slope anti-seepage membrane counterweight structure for landfill closure. Background Technology

[0002] In existing landfill closure technologies, the flexible slopes of landfills are reinforced with sandbags, soil bags, waste tires, concrete blocks, and soil layers to weigh down the laid landfill geomembrane. However, these balancing structures have the following technical problems: 1. Woven bags filled with these balancing materials are prone to aging and cracking when exposed to ultraviolet light for extended periods, leading to leakage and loss of balancing effect; 2. The balancing structure placed on the geomembrane surface after filling is too heavy overall, making it difficult to adjust and lacking flexibility; 3. Water inevitably accumulates at the bottom of the slope, and some types of balancing materials, such as waste tires, will leach harmful substances after long-term soaking, contaminating the leachate of the closure structure. Existing balancing structures lack the function of guiding leachate flow.

[0003] The existing technology, patent application number CN202120980698.3, entitled "A Utility Model Patent for a Permeate Collection System for a Weakly Permeable Media Pile," includes a multi-level platform slope and a permeate collection system. Each step of the multi-level platform slope has a circular walkway, and rapid flow channels are provided on the surrounding surfaces of the slope. A permeate drainage pipe is located at the bottom of the slope, with the end of the rapid flow channels connected to the drainage pipe. One end of the drainage pipe is connected to a permeate collection pool. The permeate collection system is located at the bottom of each step of the slope and includes a lower protective layer, an upper protective layer, a backfill layer, a waterproof layer, and a U-shaped permeate collection ditch. While this technical solution can collect permeate relatively well, it does not limit the slope's weighting structure and lacks a permeate diversion device. Utility Model Content

[0004] In order to solve the technical problems of the existing slope ballast structure being difficult to adjust and lacking a drainage device for leachate, this utility model proposes a slope anti-seepage membrane ballast structure.

[0005] The slope geomembrane counterweight structure includes a slope, the surface of which is covered with a geomembrane, and anchoring trenches are arranged at certain heights on the slope. The counterweight structure includes counterweight blocks and counterweight pipes. The counterweight blocks are fully laid in the anchoring trenches and press the geomembrane into the anchoring trenches. The counterweight blocks are provided with drainage holes. The counterweight pipes are spaced apart between two adjacent upper and lower anchoring trenches and pressed onto the geomembrane. At least one end of the counterweight pipe is fixedly connected to one of the counterweight blocks in the higher anchoring trench.

[0006] The aforementioned slope geomembrane ballast structure has a diversion pipe installed at an angle between two adjacent ballast pipes. The diversion pipe has a continuous upward opening and is pressed onto the geomembrane. Both ends of the diversion pipe are fixed to the adjacent ballast pipes.

[0007] The aforementioned slope impermeable membrane counterweight structure has a filter screen at the top of the diversion pipe to prevent clogging.

[0008] The aforementioned slope impermeable membrane counterweight structure has a leachate storage box with an open top at the bottom of each counterweight tube. Each leachate storage box is equipped with a liquid level sensor that is connected to the upper control system.

[0009] The aforementioned slope impermeable membrane counterweight structure also includes a connecting chain, through which the counterweight blocks are connected.

[0010] In the above-mentioned slope impermeable membrane ballast structure, the spacing between adjacent ballast pipes is 1 to 10 meters.

[0011] The beneficial effects of this utility model include: by setting a plurality of weight blocks with drainage holes in the anchoring trench, and setting a hollow weight pipe on the seepage prevention membrane of the slope to connect with the drainage holes, it is possible to better adjust the weight structure while guiding the leachate, thus solving the technical problems of the existing technology where the slope weight structure is not easy to adjust and there is a lack of a leachate guiding device. Attached Figure Description

[0012] Figure 1 This is a cross-sectional view of the slope seepage prevention membrane counterweight structure of this utility model.

[0013] Figure 2 This is a front view of the slope seepage prevention membrane counterweight structure of this utility model.

[0014] Figure 3 This is a cross-sectional view of the U-shaped tube in the slope seepage prevention membrane counterweight structure of this utility model.

[0015] The markings in the diagram are: 1-Anchoring trench, 2-Balancing block, 21-Drainage through hole, 3-Balancing pipe, 31-Inlet hole, 32-Outlet hole, 4-Guide pipe, 41-Filter screen, 5-Leachate storage box, 6-Connecting chain. Detailed Implementation

[0016] The present invention will now be described in conjunction with the accompanying drawings.

[0017] Example 1: like Figures 1-2The diagram shows the slope geomembrane counterweight structure of this utility model, which includes a slope. The slope mentioned here is one of multiple slopes arranged in a stepped manner in the entire sealing structure. The slope surface is covered with a geomembrane, and anchoring trenches 1 are provided at both the top and bottom of the slope. The counterweight structure includes counterweight blocks 2 and counterweight pipes 3. The counterweight blocks 2 press the bottom edge of the geomembrane into the anchoring trench 1. The counterweight blocks are provided with drainage holes 21. The counterweight pipes 3 are spaced apart between two adjacent upper and lower anchoring trenches 1 and pressed onto the geomembrane. At least one end of the counterweight pipe 3 is fixedly connected to one of the counterweight blocks 2 in the higher anchoring trench 1.

[0018] Furthermore, a guide pipe 4 is provided between two adjacent weight pipes 3. The guide pipe 4 has an upward continuous opening and is pressed onto the geomembrane. The two ends of the guide pipe 4 are respectively fixed to the adjacent weight pipes 3 for guiding the leachate between the adjacent weight pipes 3.

[0019] Furthermore, a filter screen 41 to prevent clogging is provided at the top of the guide pipe 4.

[0020] Furthermore, a leachate guiding structure is provided, with a leachate storage box 5 with an open top at the bottom of each weighted pipe 3. Each leachate storage box 5 is equipped with a pressure sensor that is connected to the upper control system for signal transmission, so as to facilitate the monitoring of leachate seepage at various points on the slope.

[0021] Furthermore, it also includes a connecting chain 6. In this embodiment, the connecting chain is made of stainless steel, and the top of the counterweight pipe 3 is connected to the counterweight block 2 at the top of the slope through the connecting chain 6.

[0022] Furthermore, the spacing between adjacent ballast tubes 3 is 1 to 10 m.

[0023] When the slope seepage prevention membrane ballast structure described in this utility model is put into use, the multiple ballast blocks 2 and ballast pipes 3 set in the anchoring trenches 1 at the top and bottom of the slope provide good ballast for the seepage prevention membrane. If the ballast blocks 2 are damaged or need to be adjusted, the target ballast blocks 2 can be adjusted. When leachate seeps out of the seepage prevention membrane, the leachate flows downward under the action of gravity and directly enters the drainage hole 21 on the bottom ballast block 2, or is collected by the U-shaped pipe 4 into the leachate storage box 5. When the leachate in the leachate storage box 5 accumulates to a certain amount, the pressure sensor in the leachate storage box 5 sends an alarm to the upper control system. The staff can then know which part of the slope is leaking more seriously based on the alarm, thus playing a role in monitoring the slope leachate.

[0024] Compared with the prior art, the slope geomembrane ballast structure of this utility model connects the corresponding ballast blocks 2 at the top and bottom of the slope through ballast pipes 3. This not only provides better fixation for the geomembrane but also facilitates the adjustment of the ballast blocks 2. Furthermore, the structure of the U-shaped pipe connecting the ballast pipes and the leachate storage box connected to the bottom end can automatically trigger an alarm in the upper system when there is a large amount of leachate, thus playing a role in monitoring leachate. This solves the technical problems of existing slope ballast structures being difficult to adjust and lacking a leachate diversion device.

Claims

1. A slope impermeable membrane counterweight structure, comprising a slope, wherein an impermeable membrane is laid on the surface of the slope, and anchoring trenches (1) are arranged at certain heights on the slope, characterized in that: The counterweight structure includes a counterweight block (2) and a counterweight pipe (3). The counterweight block (2) is filled in the anchoring trench (1) and presses the geomembrane into the anchoring trench (1). The counterweight block (2) is provided with a drainage hole (21). The counterweight pipe (3) is spaced between two adjacent upper and lower anchoring trenches (1) and pressed onto the geomembrane. At least one end of the counterweight pipe (3) is fixedly connected to one of the counterweight pipes (3) in the higher anchoring trench (1).

2. The slope impermeable membrane counterweight structure according to claim 1, characterized in that: A guide pipe (4) is inclinedly arranged between two adjacent ballast pipes (3). The guide pipe (4) has an upward continuous opening and is pressed on the geomembrane. The two ends of the guide pipe (4) are respectively fixed to the adjacent ballast pipe (3).

3. The slope impermeable membrane counterweight structure according to claim 2, characterized in that: The top of the guide pipe (4) is provided with a filter screen (41) to prevent clogging.

4. The slope impermeable membrane counterweight structure according to claim 2, characterized in that: Each of the weighted tubes (3) is provided with a leachate storage box (5) with an open top at the bottom end. Each leachate storage box (5) is equipped with a liquid level sensor that is connected to the upper control system.

5. The slope impermeable membrane counterweight structure according to claim 1, characterized in that: It also includes a connecting chain (6), through which the ballast tube (3) is connected to the ballast block (2).

6. The slope impermeable membrane counterweight structure according to claim 1, characterized in that: The spacing between adjacent ballast tubes (3) is 1 to 10 m.

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