Rainwater and sewage diversion blocking structure for landfill

Abstract

The utility model discloses a landfill rain and sewage diversion blocking structure, and relates to the technical field of landfill rain and sewage diversion blocking, the landfill rain and sewage diversion blocking structure comprises a slope and a valley-type refuse landfill arranged on one side of the slope, the valley-type refuse landfill comprises a non-landfill area and a landfill area, a groove is formed between the non-landfill area and the landfill area, and the slope is arranged in the groove. The non-landfill area is arranged between the groove and the slope, a concrete bottom plate is poured on the inner bottom face of the groove, a flow dividing blocking structure is arranged in the middle of the upper surface of the concrete bottom plate, and flow dividing channel structures are arranged on the left side and the right side of the flow dividing blocking structure. Through cooperation of the structures, rainwater accidentally flowing into the separation dam can be led out, the situation that rainwater in the separation dam overflows to damage the diversion blocking structure is prevented, and therefore the rainwater separation blocking effect of the diversion blocking structure is guaranteed, the amount of rainwater mixed into a landfill area is reduced, and then the sewage treatment amount is reduced; and the rain and sewage diversion blocking effect is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of rainwater and sewage diversion blocking in landfills, in particular to a rainwater and sewage diversion blocking structure in a landfill. Background Art

[0002] In order to achieve the purpose of separating rainwater and sewage, a landfill usually needs to set up a separation dam between the two landfill operation storage areas. In this way, when one of the landfill operation storage areas is used, the flowing rainwater in the other unused landfill storage area will not be polluted. At the same time, the flowing rainwater is also isolated from entering the operation storage area, reducing the generation of leachate.

[0003] The utility model with announcement number CN203096892U discloses a HDPE membrane rainwater and sewage diversion structure, including an annular separation dam that runs through the landfill area and the unfilled area of ​​a plain-type landfill or is set along the slope platform around a valley-type landfill, and the separation dam is covered with non-woven geotextile and HDPE membrane.

[0004] In the process of implementing this application, it was found that the technology has the following problems: in the above patent documents, HDPE film is mainly used to block rainwater from the unfilled area from passing through the dividing dam to gather into the landfilled area, thereby playing the role of diverting rainwater and sewage; however, the HDPE membrane is installed in the open air, and during long-term use, it will inevitably be damaged by the impact of rainwater or the impact of gravel carried down by rainwater on the slope. Once damaged, rainwater may enter the inside of the dividing dam along the damaged part, and then slowly pass through the dividing dam to gather into the landfilled area; at the same time, if more rainwater enters the dividing baffle and cannot be discharged in time, it may cause damage to the baffle, affecting the subsequent rainwater and sewage diversion and blocking effect.

[0005] For this purpose, a rainwater and sewage diversion barrier structure for a landfill is proposed. Utility Model Content

[0006] The purpose of the utility model is to lead out rainwater that accidentally flows into the separation dam and prevent the rainwater inside the separation dam from overflowing and causing damage to the diversion and blocking structure, thereby ensuring the separation and blocking effect of the diversion and blocking structure on rainwater, reducing the amount of rainwater mixing into the landfill area, and further reducing the amount of sewage treatment, and improving the rainwater and sewage diversion and blocking effect. The present application provides a landfill rainwater and sewage diversion and blocking structure.

[0007] The technical solution adopted by the utility model is as follows:

[0008] A landfill rainwater and sewage diversion blocking structure comprises a slope and a valley-type landfill disposed on one side of the slope, wherein the valley-type landfill comprises an unfilled area and a filled area, a groove is disposed between the unfilled area and the filled area, the unfilled area is disposed between the groove and the slope, a concrete bottom plate is cast on the inner bottom surface of the groove, a diversion blocking structure is disposed in the middle of the upper surface of the concrete bottom plate, and diversion channel structures are disposed on the left and right sides of the diversion blocking structure;

[0009] The diversion blocking structure includes a separation dam, which is fixedly connected to the middle part of the upper surface of the concrete bottom plate, and the diversion channel structure includes concrete block 1 and concrete block 2. Concrete block 1 is cast on the outer side of the bottom end of the separation dam, and concrete block 2 is cast on the inner wall of the groove. The upper ends of the concrete block 1 and the concrete block 2 close to one side are fixedly connected with filter net 1, and the lower ends of the concrete block 1 and the concrete block 2 close to one side are fixedly connected with a partition. The outer surface of the lower end of the concrete block 1 is provided with an overflow hole, and the inner wall of the overflow hole is fixedly connected with filter net 2.

[0010] Furthermore, the outer surface of the upper end of the partition dam is covered with a non-woven geotextile, and a side of the non-woven geotextile away from the partition dam is covered with a HDPE film.

[0011] Furthermore, a gravel bag is provided on the outer surface of the HDPE film close to the top of the separation dam.

[0012] Furthermore, the cross-sectional shape of the separation dam is a trapezoid.

[0013] Furthermore, the specification of the filter screen 1 and the filter screen 2 is 300 mesh.

[0014] Furthermore, the lower end outer surfaces of the non-woven geotextile and the HDPE membrane are fixedly connected to the upper surface of the first concrete stopper.

[0015] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0016] 1. In the utility model, the diversion and blocking structure itself can prevent a large amount of rainwater from flowing down the slope to the landfill area, reducing the amount of sewage treatment in the landfill area, and when the non-woven geotextile and the HDPE membrane are damaged, the rainwater accidentally flowing into the interior of the separation dam can be discharged from the overflow hole and flow into the lower end groove channel formed by the concrete block 1, the concrete block 2 and the concrete bottom plate, and flow along the upper surface of the concrete bottom plate to be drained out of the valley-type landfill, and the filter net 2 can also filter the water flowing out of the overflow hole to avoid stones flowing out of the interior of the separation dam; through the cooperation of the above structures, the rainwater accidentally flowing into the interior of the separation dam can be diverted to prevent the damage to the diversion and blocking structure caused by the overflow of rainwater in the separation dam, thereby ensuring the separation and blocking effect of the diversion and blocking structure on rainwater, reducing the amount of rainwater mixed into the landfill area, and then reducing the amount of sewage treatment, and improving the rainwater and sewage diversion and blocking effect.

[0017] 2. In the utility model, when rainwater flows down the slope, it will slowly flow into the upper groove channel formed by concrete block 1, concrete block 2 and the partition. At the same time, rainwater flowing down along the side of the diversion and blocking structure will also flow into the upper groove channel formed by concrete block 1 and concrete block 2. The rainwater entering the upper groove channel will fall into the upper surface of the partition and be drained out of the valley-type landfill along the upper groove channel. At this time, the filter net 1 can filter the larger stones and impurities carried in the rainwater to prevent the upper groove channel from being blocked by stones. Through the cooperation of the above structures, rainwater can be drained out of the valley-type landfill, reducing the amount of rainwater mixed into the landfill area, thereby reducing the amount of sewage treatment and improving the rainwater and sewage diversion and blocking effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a cross-sectional view of the utility model;

[0019] Figure 2 For the utility model Figure 1 A magnified image of point A;

[0020] Figure 3 For the utility model Figure 1 Enlarged view of point B.

[0021] Markings in the figure: 1-slope, 2-valley-type landfill, 3-diversion barrier structure, 4-diversion channel structure, 5-concrete bottom plate, 6-groove, 21-unfilled area, 22-landfilled area, 31-separation dam, 32-non-woven geotextile, 33-HDPE membrane, 34-gravel bag, 41-concrete block 1, 42-concrete block 2, 43-partition, 44-filter screen 1, 45-overflow hole, 46-filter screen 2. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution in the embodiments of the utility model will be clearly and completely described below in combination with the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Example:

[0024] Reference Figure 1-Figure 3 A landfill rainwater and sewage diversion barrier structure comprises a slope 1 and a valley-type landfill 2 arranged on one side of the slope 1, the valley-type landfill 2 comprises an unfilled area 21 and a landfilled area 22, a groove 6 is arranged between the unfilled area 21 and the landfilled area 22, the unfilled area 21 is arranged between the groove 6 and the slope 1, a concrete bottom plate 5 is cast on the inner bottom surface of the groove 6, a diversion barrier structure 3 is arranged in the middle of the upper surface of the concrete bottom plate 5, and diversion channel structures 4 are arranged on the left and right sides of the diversion barrier structure 3; specifically, the diversion barrier structure 3 itself can prevent more rainwater from flowing down the slope 1 to the landfilled area 22, reduce the sewage treatment volume of the landfilled area 22, and improve the rainwater and sewage diversion barrier effect.

[0025] Reference Figure 1-Figure 3 The diversion blocking structure 3 includes a separation dam 31, which is fixedly connected to the middle of the upper surface of the concrete bottom plate 5. The diversion channel structure 4 includes a concrete block 1 41 and a concrete block 2 42. The concrete block 1 41 is cast on the outer side of the bottom end of the separation dam 31, and the concrete block 2 42 is cast on the inner wall of the groove 6. The upper end of the concrete block 1 41 and the concrete block 2 42 close to one side is fixedly connected with a filter screen 1 44, and the specification of the filter screen 1 44 is 300 mesh. The lower end of the concrete block 1 41 and the concrete block 2 42 close to one side is fixedly connected with a partition 43; specifically, when rainwater flows down the slope 1, it will slowly flow into the concrete block 1 4 1. In the upper groove channel formed by the concrete block 2 42 and the partition 43, rainwater flowing down along the side of the diversion blocking structure 3 will also flow into the upper groove channel formed by the concrete block 1 41 and the concrete block 2 42. The rainwater entering the upper groove channel will fall on the upper surface of the partition 43 and be led out of the valley-type landfill 2 along the upper groove channel. At this time, the filter net 1 44 can filter the larger stones and impurities carried in the rainwater to prevent the upper groove channel from being blocked by stones. Through the cooperation of the above structures, rainwater can be led out of the valley-type landfill 2, reducing the amount of rainwater mixed into the landfill area 22, thereby reducing the amount of sewage treatment and improving the rainwater and sewage diversion blocking effect.

[0026] Reference Figure 1-Figure 3 The upper outer surface of the dividing dam 31 is covered with a non-woven geotextile 32, and the side of the non-woven geotextile 32 away from the dividing dam 31 is covered with a HDPE film 33, and the outer surface of the HDPE film 33 close to the top of the dividing dam 31 is provided with a gravel bag 34; specifically, the non-woven geotextile 32 and the HDPE film 33 can be pressed from the upper end by the gravel bag 34; the cross-sectional shape of the dividing dam 31 is a trapezoid, and the lower end outer surfaces of the non-woven geotextile 32 and the HDPE film 33 are fixedly connected to the upper surface of the concrete block 41; specifically, the HDPE film 33 has good water-proof performance, which can prevent excessive rainwater from entering the dividing dam 31 and damaging the diversion barrier structure 3, so as to improve the service life of the diversion barrier structure 3 and improve the rain and sewage diversion barrier effect.

[0027] Reference Figure 1-Figure 3 The outer surface of the lower end of the concrete stopper 41 is provided with an overflow hole 45, and the inner wall of the overflow hole 45 is fixedly connected with a filter screen 46, and the specification of the filter screen 46 is 300 meshes; specifically, when the non-woven geotextile 32 and the HDPE film 33 are damaged, rainwater accidentally flowing into the interior of the separation dam 31 can be discharged from the overflow hole 45 and flow into the lower end groove channel formed by the concrete stopper 41, the concrete stopper 42 and the concrete bottom plate 5, and flow along the upper surface of the concrete bottom plate 5 to be drained. Out of the valley type landfill 2, the filter screen 2 46 can also filter the water flowing out of the overflow hole 45 to prevent stones from flowing out of the partition dam 31; through the cooperation of the above structures, rainwater that accidentally flows into the partition dam 31 can be led out to prevent the partition dam 31 from overflowing and causing damage to the diversion barrier structure 3, thereby ensuring the diversion barrier structure 3's effect of separating and blocking rainwater, reducing the amount of rainwater mixed into the landfill area 22, and then reducing the amount of sewage treatment, and improving the rainwater and sewage diversion barrier effect.

[0028] The implementation principle of the landfill rainwater and sewage diversion barrier structure embodiment of the present application is:

[0029] The diversion barrier structure 3 can prevent a large amount of rainwater from flowing down the slope 1 toward the landfill area 22, thereby reducing the amount of sewage treatment in the landfill area 22, and the HDPE membrane 33 has good water-proof performance, which can prevent excessive rainwater from entering the interior of the separation dam 31 and causing damage to the diversion barrier structure 3, so as to increase the service life of the diversion barrier structure 3; when the non-woven geotextile 32 and the HDPE membrane 33 are damaged, the rainwater that accidentally flows into the interior of the separation dam 31 can be discharged from the overflow hole 45 and flow into the lower end formed by the concrete block 1 41, the concrete block 2 42 and the concrete bottom plate 5. The rainwater flows in the groove channel and along the upper surface of the concrete bottom plate 5 and is drained out of the valley-type landfill 2. The filter screen 46 can also filter the water flowing out of the overflow hole 45 to prevent stones from flowing out of the separation dam 31. The above structures can be used to guide rainwater that accidentally flows into the separation dam 31 to prevent the overflow of rainwater in the separation dam 31 and damage the diversion and blocking structure 3, thereby ensuring the separation and blocking effect of the diversion and blocking structure 3 on rainwater, reducing the amount of rainwater mixed into the landfill area 22, and then reducing the amount of sewage treatment, and improving the rainwater and sewage diversion and blocking effect.

[0030] On the other hand, when rainwater flows down the slope 1, it will slowly flow into the upper groove channel formed by the concrete block 1 41, the concrete block 2 42 and the partition 43. At the same time, the rainwater flowing down along the side of the diversion barrier structure 3 will also flow into the upper groove channel formed by the concrete block 1 41 and the concrete block 2 42. The rainwater entering the upper groove channel will fall on the upper surface of the partition 43 and be drained out of the valley-type landfill 2 along the upper groove channel. At this time, the filter net 1 44 can filter the larger stones and impurities carried in the rainwater to prevent the upper groove channel from being blocked by stones. Through the cooperation of the above structures, rainwater can be drained out of the valley-type landfill 2, reducing the amount of rainwater mixed into the landfill area 22, thereby reducing the amount of sewage treatment and improving the rainwater and sewage diversion and blocking effect.

[0031] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A landfill rainwater and sewage diversion barrier structure, comprising a slope (1) and a valley-type landfill (2) arranged on one side of the slope (1), characterized in that: The valley-type landfill (2) comprises an unfilled area (21) and a filled area (22), a groove (6) is arranged between the unfilled area (21) and the filled area (22), the unfilled area (21) is arranged between the groove (6) and the slope (1), a concrete bottom plate (5) is cast on the inner bottom surface of the groove (6), a diversion blocking structure (3) is arranged in the middle of the upper surface of the concrete bottom plate (5), and diversion channel structures (4) are arranged on the left and right sides of the diversion blocking structure (3); The diversion blocking structure (3) comprises a separation dam (31), wherein the separation dam (31) is fixedly connected to the middle part of the upper surface of the concrete bottom plate (5); the diversion channel structure (4) comprises a concrete block 1 (41) and a concrete block 2 (42); the concrete block 1 (41) is cast on the outer side surface of the bottom end of the separation dam (31), and the concrete block 2 (42) is cast on the inner wall of the groove (6); a filter screen 1 (44) is fixedly connected to the upper end of the side surface of the concrete block 1 (41) and the concrete block 2 (42); a partition plate (43) is fixedly connected to the lower end of the side surface of the concrete block 1 (41) and the concrete block 2 (42); an overflow hole (45) is provided on the outer surface of the lower end of the concrete block 1 (41), and a filter screen 2 (46) is fixedly connected to the inner wall of the overflow hole (45).

2. A landfill rainwater and sewage diversion barrier structure as claimed in claim 1, characterized in that: The outer surface of the upper end of the partition dam (31) is covered with a non-woven geotextile (32), and a side of the non-woven geotextile (32) away from the partition dam (31) is covered with a HDPE film (33).

3. A landfill rainwater and sewage diversion barrier structure as claimed in claim 2, characterized in that: A gravel bag (34) is provided on the outer surface of the HDPE film (33) close to the top end of the separation dam (31).

4. A landfill rainwater and sewage diversion barrier structure as claimed in claim 1, characterized in that: The cross-sectional shape of the partition dam (31) is a trapezoid.

5. A landfill rainwater and sewage diversion barrier structure as claimed in claim 1, characterized in that: The specifications of the filter screen 1 (44) and the filter screen 2 (46) are 300 meshes.

6. A landfill rainwater and sewage diversion barrier structure as claimed in claim 2, characterized in that: The lower outer surfaces of the non-woven geotextile (32) and the HDPE film (33) are fixedly connected to the upper surface of the concrete stopper (41).

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