CN112663686A

CN112663686A - Anti-floating measure device for garbage pit

Info

Publication number: CN112663686A
Application number: CN202011540934.6A
Authority: CN
Inventors: 龙吉生; 李纯; 洪勇; 郑景军; 马小兵; 朴勇健; 瞿兆舟; 周金阳; 文国想; 孙向荣
Original assignee: Shanghai SUS Environment Co Ltd
Current assignee: Shanghai SUS Environment Co Ltd
Priority date: 2020-12-23
Filing date: 2020-12-23
Publication date: 2021-04-16

Abstract

The invention discloses a device for taking a garbage pit anti-floating measure, which comprises a drain pipe, anti-filtering geotextile, a medium sand anti-filtering layer, a coarse sand anti-filtering layer, a gravel filtering layer, a water collecting tank, an overflow pipe and a submersible pump. Laying a circle of drain pipes at the anti-floating defense elevation along the periphery of the garbage pit and the percolate collecting tank, wherein the drain pipes are provided with quincunx holes and are wrapped by anti-filtration geotextile; the outer side of the drain pipe is respectively provided with a gravel filter layer, a coarse sand reverse filter layer, a medium sand reverse filter layer and reverse filter geotextile, the drain pipe is connected with a water collecting tank, and one side of the water collecting tank, which is close to the reverse filter layer, is provided with an overflow pipe; the submersible pump is arranged in the water collecting tank to pump the underground water out in time. The anti-floating measure device provided by the invention can master the underground water level change condition in real time through the water level change of the water collecting tank, has high reliability, is particularly suitable for environments with insufficient underground water, shortens the construction period of the whole anti-floating measure device by half, reduces the construction difficulty and reduces the construction cost by 80%.

Description

Anti-floating measure device for garbage pit

Technical Field

The invention relates to a refuse pit anti-floating measure device which can be used for refuse pits of refuse incineration power plants and other areas needing anti-floating protection, and is particularly suitable for environments with insufficient underground water.

Background

In daily life of people, a large amount of garbage is inevitably generated. If the garbage is not effectively treated, the living environment of people can be greatly influenced, and even the health of people is threatened. At present, incineration is one of the main ways to dispose of waste.

The buried depth of the garbage pit in the garbage incineration plant is about-7 m, and the anti-floating design of the garbage pit needs to be considered according to the standard requirement. The common anti-floating measures include increasing the thickness of the bottom plate of the garbage pit to increase the self weight, arranging anti-floating piles or anti-floating anchor rods and the like, and the schemes can meet the anti-floating requirement, but have the disadvantages of high manufacturing cost, long construction period and the like.

Therefore, it is an urgent need to solve the problem of the art to research a device for anti-floating measures of a garbage pit, so that the garbage pit has low anti-floating cost, short construction period and high reliability.

Disclosure of Invention

In order to solve the technical problems, the invention provides a reasonable-design garbage pit anti-floating measure device, which is low in anti-floating cost, short in construction period and high in reliability.

The invention relates to a device for taking anti-floating measures of a garbage pit, which comprises a drain pipe, anti-filtering geotextile, a medium sand anti-filtering layer, a coarse sand anti-filtering layer, a gravel filtering layer, a water collecting tank, an overflow pipe and a submersible pump. Laying a circle of drain pipes at the anti-floating defense elevation along the periphery of the garbage pit and the percolate collecting tank, wherein the drain pipes are provided with quincunx holes and are wrapped by anti-filtration geotextile; the outer side of the drain pipe is respectively provided with a gravel filter layer, a coarse sand reverse filter layer, a medium sand reverse filter layer and reverse filter geotextile, the drain pipe is connected with a water collecting tank, and one side of the water collecting tank, which is close to the reverse filter layer, is provided with an overflow pipe; the submersible pump is arranged in the water collecting tank, underground water is pumped out in time, and the water collecting tank wall is provided with the maintenance crawling ladder.

Preferably, the drain pipe is made of HDPE material, and the pipe diameter is larger than or equal to 200 mm.

Preferably, the wall of the drain pipe is provided with plum blossom-shaped holes at a distance of 120 mm.

Preferably, the particle size of the gravel filter layer is 30-50 mm.

Preferably, the thickness of the coarse sand inverted filter layer is more than or equal to 200 mm.

Preferably, the thickness of the medium sand inverted filter layer is more than or equal to 200 mm.

Preferably, the overflow pipe is the PVC material, and 75mm of pipe diameter, interval 500 mm.

Preferably, the number of the submersible sewage pumps is more than or equal to 2.

Preferably, the overhaul crawling ladder is made of stainless steel.

The invention has the beneficial effects that: the drain pipe has good durability, and the pipe wall is provided with plum blossom-shaped holes and wrapped with the reversed filter geotextile, so that the pipeline can be prevented from being blocked and the water can be effectively drained; the water collecting tank is connected with the water drainage pipe and is connected with the inverted filter layer through the overflow pipe, so that the underground water can be effectively drained into the tank; more than 2 submersible pumps are arranged in the water collecting tank, so that the underground water is discharged in time; the underground water level change condition is mastered in real time through the water level change of the water collecting pool, and the reliability is high; the anti-floating measure device is particularly suitable for the environment with insufficient underground water, the construction period of the whole anti-floating measure device is shortened by half, the construction difficulty is reduced, and the construction cost is reduced by 80%.

Drawings

Fig. 1 is a schematic plan view of an embodiment of the present invention.

FIG. 2 is a schematic view of section A-A of FIG. 1.

FIG. 3 is a schematic view of section B-B of FIG. 1.

FIG. 4 is a cross-sectional view of a drain pipe.

Description of reference numerals:

the garbage pit is characterized by comprising a garbage pit 1, a drain pipe 2, a percolate collecting tank 3, a water collecting tank 4, a reverse filter geotextile 5, a medium sand reverse filter layer 6, a coarse sand reverse filter layer 7, a gravel filter layer 8, a garbage pit side wall 9, a garbage pit bottom plate 10, backfill soil 11, a concrete cushion 12, a prefabricated cover plate 13, an overhaul ladder stand 14, an overflow pipe 15, a submersible pump 16 and a plum blossom-shaped hole 17.

Detailed Description

The present invention will be described in further detail below by way of examples with reference to the accompanying drawings, which are illustrative of the present invention and are not to be construed as limiting the present invention.

Referring to fig. 1 to 4, the embodiment of the invention comprises a garbage pit 1, a drain pipe 2, a percolate collecting tank 3, a water collecting tank 4, a reverse-filtering geotextile 5, a medium sand reverse-filtering layer 6, a coarse sand reverse-filtering layer 7, a gravel filtering layer 8, a garbage pit side wall 9, a garbage pit bottom plate 10, backfill soil 11, a concrete cushion layer 12, a prefabricated cover plate 13, an overhauling ladder stand 14, an overflow pipe 15, a submersible pump 16 and a plum blossom-shaped hole 17.

The wall of the drain pipe 2 is provided with a quincunx hole 17, and the pipe is wrapped by a circle of reverse filter geotextile 5; after the construction of the garbage pit 1 and the percolate collecting tank 3 is completed, the drain pipe 2 is laid on the picking edge, and then the gravel filtering layer 8, the coarse sand reverse filtering layer 7, the medium sand reverse filtering layer 6 and the reverse filtering geotextile 5 are arranged on the outer side of the drain pipe layer by layer.

The water collecting tank 4 and the garbage pit 1 can be synchronously constructed, and a drain pipe 2, an overflow pipe 15 and an overhauling crawling ladder 14 are embedded in the pipe wall of the water collecting tank; and after the construction of the water collecting tank 4 is completed, the drain pipes 2 are connected in a full line.

And after the construction of the drain pipe 2, the reverse filtering geotextile 5, the medium sand reverse filtering layer 6, the coarse sand reverse filtering layer 7 and the gravel filtering layer 8 is finished, backfilling 11 is backfilled to the designed elevation layer by layer.

When the underground water level is high, the underground water level is converged into the water collecting tank 4 through the drain pipe 2 and the overflow pipe 15, and when the water level in the water collecting tank exceeds the anti-floating prevention water level, the submersible pump 16 is started to drain water until the underground water level is reduced to be below the anti-floating prevention water level; when the submersible pump is periodically overhauled, the prefabricated cover plate 13 can be opened, the submersible pump 16 is taken out for overhauling by means of the overhauling ladder stand 14 to enter the water collecting tank.

The above description is only illustrative of the structure of the present invention; moreover, the invention may also be embodied in different forms and its equivalents or variations such as constructions, features, and principles set forth herein are encompassed by the present disclosure.

Claims

1. A device for taking anti-floating measures of a garbage pit is characterized by comprising a drain pipe, anti-filtering geotextile, a medium sand anti-filtering layer, a coarse sand anti-filtering layer, a gravel filtering layer, a water collecting tank, an overflow pipe and a submersible pump; laying a circle of drain pipes at the anti-floating defense elevation along the periphery of the garbage pit and the percolate collecting tank, wherein the pipe wall is provided with quincunx holes and is wrapped by anti-filtration geotextile; the outer side of the drain pipe is respectively provided with a gravel filter layer, a coarse sand reverse filter layer, a medium sand reverse filter layer and reverse filter geotextile, the drain pipe is connected with a water collecting tank, and one side of the water collecting tank, which is close to the reverse filter layer, is provided with an overflow pipe; the submersible pump is arranged in the water collecting tank, underground water is pumped out in time, and the water collecting tank wall is provided with the maintenance crawling ladder.

2. The device for the anti-floating measure of the garbage pit according to claim 1, wherein the drain pipe is made of HDPE material and has a pipe diameter of more than or equal to 200 mm.

3. The device for the anti-floating measure of the garbage pit according to claim 1, wherein the wall of the drain pipe is provided with plum blossom-shaped openings with a distance of 120 mm.

4. The device for the anti-floating measure of the garbage pit according to claim 1, wherein the particle size of the crushed stone filter layer is 30 to 50 mm.

5. The device for the anti-floating measure of the garbage pit according to claim 1, wherein the thickness of the coarse sand inverted filter layer is more than or equal to 200 mm.

6. The device for the anti-floating measure of the garbage pit according to claim 1, wherein the thickness of the middle sand inverted filter layer is more than or equal to 200 mm.

7. The device for the anti-floating measure of the garbage pit according to claim 1, wherein the overflow pipe is made of PVC material, the pipe diameter is 75mm, and the distance between the overflow pipes is 500 mm.

8. The device for the anti-floating measure of the garbage pit according to claim 1, wherein the number of the submersible sewage pumps is more than or equal to 2.

9. The device for the anti-floating measure of the garbage pit according to claim 1, wherein the maintenance ladder stand is made of stainless steel.