KR200322867Y1 - LFG Drainage installation structure - Google Patents

Abstract

The present invention relates to a landfill gas exclusion pipe installation structure applied to a landfill gas removal system.

The present invention provides a through hole formed in the pipe member by attaching a multi-stage porous medium maximizing porosity and porosity to the surface of a plurality of pipe members constituting the landfill gas exclusion pipe to descend by the same height as the settled depth of the surrounding waste. While preventing the phenomenon of clogging by trash, the landfill gas discharged through the through hole is continuously maintained to promote rapid stabilization of the landfill, and the overall compaction strength of the landfill can be kept constant so that the state of settlement can be maintained more uniformly. A buried gas exclusion pipe installation structure with a porous medium is provided.

Description

Landfill gas exclusion pipe installation structure with porous media {LFG Drainage installation structure}

The present invention relates to a landfill gas exclusion pipe installation structure applied to a landfill gas removal system, and in particular, porosity and porosity on a plurality of pipe member surfaces forming a landfill gas exclusion pipe to descend by the same height as the settled depth of surrounding waste. The porous media that attaches the multi-stage porous media to maximize the efficiency of the pipe member prevents the clogging of the through-holes of the pipe member by the waste while maintaining the discharge of the landfill gas through the through-holes, so that the landfill can be stabilized quickly. It relates to the installation structure of the landfill gas exclusion pipe attached.

In general, the waste landfill site is provided with a landfill gas exclusion pipe 10 for discharging the landfill gas generated from the landfill waste to the outside and for introducing air into the landfill land, and after the landfill is completed, On top of the waste layer (1) was to have a structure covering the final cover layer consisting of the gas exhaust layer (2), storm water barrier layer (3) and rainwater drainage layer (4).

On the other hand, the applicant of the present application proposed a landfill final cover system having a Shanghai-type landfill gas exclusion pipe in consideration of the settlement of landfill in order to be suitable for such landfills as patent application No. 10-2001-32583 (hereinafter referred to as 'prior art') There is a bar.

That is, in the above prior art, as shown in FIGS. 1 to 3, the landfill gas exclusion pipe 10 is divided into a plurality of pipe members 11 so as to be connected to the gas exhaust layer 2 from the bottom surface of the landfill. It was configured to.

In addition, a plurality of through holes 12 are formed in the side wall surface of the pipe member 11, and a detachable clamp member 13 is coupled to the outer wall surface of the pipe member 11, and the clamp member 13 is disposed. From the outer surface of the outer downward direction, at least one pair of support legs 14 were configured to be inclined to extend. In addition, the gas exhaust layer 2 is provided with a gas discharge pipe 5 extending to the outside.

However, in the prior art, when the landfill waste is settled, the landfill waste that is settled directly comes into contact with the through hole 12 of the pipe member 11, causing the blockage of the through hole 12. As a result, the gas in the landfill generated from the landfill of garbage cannot be discharged to the outside through the through hole 12.

Thus, in order to improve the above problems, a plurality of pipe members 11 are divided so as to secure a ventilation area by stacking gravel 6 as shown in FIGS. 4 and 5 around the landfill gas exclusion pipe 10. It was. However, such gravel construction had to have a variety of structural problems.

That is, when the gravel is piled around the landfill gas exclusion pipe 10 that is divided into the plurality of pipe members 11, the construction is inevitable, and such a construction difficulty is soon due to the porosity between the gravel and the gravel There is a problem that causes an increase.

In addition, when the gravel is installed around the landfill gas exclusion pipe 10 which is divided into a plurality of pipe members 11, the compaction strength of the landfill site where the gravel is constructed and the landfill site where the gravel is not constructed appear different from each other. The sinking condition became uneven, and the unevenness of the sinking soon followed the closure causing the destruction of the final cover layer.

In addition, in the case of the pipe member 11 adjacent to the gravel, the fall of the landfill waste was not properly made due to the gravel, which means that the landfill gas exclusion pipe 10 does not perform a normal function, but the landfill There was no choice but to follow the closure of normal collection and exclusion of internal gases.

The present invention has been made to solve the above-mentioned conventional problems, the object of the present invention, the porosity and porosity on the surface of the pipe member of the landfill gas exclusion pipe is installed to be lowered step by step by the depth of landfill waste By attaching the maximized porous media, the through-holes formed in the pipe member can be effectively prevented from being clogged by garbage, and the discharge of the landfill gas through the through-holes is continuously maintained, so that the landfill can be stabilized quickly. It is an object of the present invention to provide a landfill gas rejection tube structure in which a porous medium is attached so that the overall compaction strength of the landfill is kept constant so that the state of settlement can be maintained more uniformly.

Figure 1 is a side cross-sectional view of the final cover system applied to the prior art.

Figure 2 is a perspective view of the landfill gas exclusion pipe applied to the final cover system of the prior art.

Figure 3 is a side cross-sectional view of the landfill gas exclusion pipe applied to the final cover system of the prior art

Figure 4 is a side sectional view of a state in which gravel is installed around the conventional landfill gas exclusion pipe.

5 is a cross-sectional view taken along the line A-A of FIG.

Figure 6 is a side cross-sectional view of the non-woven fabric attached to the surface of the landfill gas exclusion pipe in one embodiment of the present invention in multiple stages.

7 is a cross-sectional view taken along the line B-B of Figure 6 as an embodiment of the present invention.

Figure 8 is a side cross-sectional view of a state in which the mesh net is attached to the surface of the landfill gas exclusion pipe in one embodiment of the present invention in multiple stages.

9 is a cross-sectional view taken along the line C-C of Figure 8 as an embodiment of the present invention.

Figure 10 is a side cross-sectional view of a non-woven fabric and a mesh mat to form a multi-layer on the surface of the landfill gas exclusion pipe in one embodiment of the present invention in a multi-stage.

11 is a cross-sectional view taken along the line D-D of FIG. 10 as an embodiment of the present invention.

* Description of the symbols for the main parts of the drawings *

One; Landfill waste layer 2; Gas exhaust layer, 3; Storm barrier layer, 4; Storm drainage layer, 5; Gas discharge pipe, 10; Landfill gas exclusion pipe, 11; A pipe member, 12; Through hole, 20; Porous medium, 21; Nonwovens, 22; Net

The present invention is to install a landfill gas exclusion pipe consisting of a plurality of pipe members for the exclusion of landfill gas generated in the landfill, discharge the landfill gas generated from the landfill waste to the outside, while the landfill of waste is completed In the landfill gas removal system of a landfill site in which a final cover layer including a gas exhaust layer, a rain barrier layer and a storm drain layer is disposed on an upper part of the landfill waste layer, the outer surface of the pipe member constituting the landfill gas exclusion pipe It is characterized in that it is configured to prevent the blockage of the through-holes by the landfill waste by maximizing the porosity and the porosity by integrally attaching a porous medium having excellent air permeability.

Hereinafter, a preferred embodiment of the present invention based on the accompanying drawings.

For reference, the drawings referred to below will be described with the same reference numerals for the same parts as in the prior art for convenience of description.

Figure 6 is a side cross-sectional view of a non-woven fabric attached to the surface of the landfill gas exclusion pipe in one embodiment according to an embodiment of the present invention, Figure 7 is a cross-sectional view taken along line B-B of FIG.

FIG. 8 is a side cross-sectional view of a mesh net attached to the surface of a landfill gas exclusion pipe in another embodiment according to another embodiment of the present invention, and FIG. 9 is a cross-sectional view taken along line C-C of FIG. 8.

FIG. 10 is a cross-sectional side view illustrating a non-woven fabric and a mesh net formed in multiple layers on the surface of a landfill gas exclusion pipe as another embodiment of the present invention, and FIG. 11 is a cross-sectional view taken along the line D-D of FIG.

6 to 11, the landfill gas of the landfill having a landfill gas exclusion pipe 10 is divided into a plurality of pipe members 11 so as to descend in stages by the settled depth of landfill waste, as shown in Figure 6 to 11 Applies to exclusion systems.

According to such a landfill gas removal system, while the landfill gas generated from the landfilled waste through the plurality of pipe members 11 is discharged to the outside and air is introduced into the landfill, while the landfill is completed, the landfill waste layer It is constructed in a structure covering the final cover layer composed of the gas exhaust layer 2, the rain barrier layer 3 and the rain drain layer 4 on the upper part of (1).

In addition, a porous medium having excellent air permeability on the surface of the pipe member 11 constituting the buried gas exclusion pipe 10 to prevent clogging of the through hole 12 by landfill waste through maximization of porosity and porosity. 20) is integrally attached.

At this time, the porous medium 20, a non-woven fabric of geotextiles, a mesh net of geosynthetic resins, or a multilayer structure thereof may be selectively used.

The porous medium 20 is also, of course, another type of material to secure the opening through the perforated plate-shaped material may be used.

In addition, in the case of the semi-perforated pipe having the semi-circular closed portion so that the pipe member 11 is installed in the transverse direction to perform a drainage function, only the upper perforated portion attaches a porous medium to cover the upper perforated portion of the semi-perforated pipe. It is desirable to install. Through this, it is possible to effectively perform the function of collecting and transporting the landfill gas in the transverse direction.

Referring to Figures 6 to 11 attached to the operation of the embodiment of the present invention configured as described above are as follows.

First, as the landfill of the waste proceeds to the interior of the landfill, the pipe members 11 are installed in multiple stages from a plurality of points at the bottom of the landfill.

At this time, the porous medium 20 having excellent air permeability is attached to the surface of the pipe member 11 in multiple stages so that the through-hole 12 formed in the pipe member 11 is not blocked by landfill waste.

Here, the porous medium 20 is composed of a multi-layer nonwoven fabric 21 of geo-fibers as shown in Figs. 6 and 7, or a multi-layered net net 22 of a geosynthetic resin stream as shown in Figs. Alternatively, as shown in FIGS. 10 and 11, a non-woven fabric 21, which is a geotextile, and a mesh net, 22, which is a civil synthetic resin, have a multi-layer structure.

In addition, configuring the porous medium 20 in multiple stages not only doubles the ventilation area around the pipe member 11, but also when the landfill waste is settled, the porous medium 20 is connected to the pipe member 11. This is to prevent slipping from the surface of the machine.

Thereafter, when the garbage is embedded up to the upper portion of the lower pipe member 11, it is installed in a state where the lower portion of the other pipe member 11 is inserted into the upper portion of the inner pipe member 11, and the upper pipe member 11 is disposed. Both support legs 14 are installed to be supported on the landfilled garbage.

Then, the upper pipe member 11 is able to maintain the height of the installed constant without sliding downward into the lower pipe member (11).

In this state, when the landfill is further progressed and the landfill of the waste is completed to the approximately middle point of the upper pipe member 11, the support leg 14 of the upper pipe member 11 is removed from the pipe member 11. Isolate.

Then, the upper pipe member 11 is to maintain a constant height without being slid downward into the lower pipe member 11 by the lateral pressure applied from the garbage embedded in the periphery.

In this way, when the pipe member 11 is installed at a plurality of points of the landfill, respectively, and the landfill is completed, the gas exhaust layer 2 and the rain barrier layer 3 and the upper portion of the landfill waste layer 1 after the landfill are completed. It will be able to cover the final cover layer consisting of rainwater drainage layer (4).

At this time, the porous medium 20 attached to the surface of the pipe member 11 is to maximize the porosity and porosity while expanding the ventilation area of the through hole 12 formed in the pipe member 11. The through hole 12 may continuously maintain the external discharge of landfill gas without clogging caused by the landfill waste, even if the landfill waste is settled.

In addition, the porous medium 20 is to be lowered together with the pipe member 11 when the pipe member 11 is lowered from the landfill of waste, so that the overall compaction strength of the landfill, as well as settlement of the landfill The state can be kept uniform.

As described above, the landfill gas rejection pipe structure with the porous media of the present invention is designed to maximize porosity and porosity on the surface of a plurality of pipe members forming the landfill gas rejection pipe so as to descend by the same height as the settled depth of the surrounding waste. By attaching the porous media of the pipe, the through-hole formed in the pipe member is prevented from being clogged by the waste while maintaining the discharge of the landfill gas through the through-hole to promote the stabilization of the landfill as well as the overall compaction strength of the landfill It has the characteristic to keep the state of settlement more uniform.

Claims (4)

A landfill gas exclusion pipe consisting of a plurality of pipe members is installed to exclude landfill gas from landfills, and the landfill gas generated from the landfill waste is discharged to the outside, and the landfill waste layer is completed after the landfill is completed. In the landfill gas removal system of a landfill, which is to install a final cover layer including a gas exhaust layer, rainwater barrier layer and rainwater drainage layer on top of It is configured to prevent the blockage of the through-hole by the landfill waste by maximizing the porosity and the porosity by integrally attaching the porous medium having excellent air permeability to the outer surface of the pipe member constituting the landfill gas exclusion pipe. A landfill gas rejection pipe structure having a porous medium attached thereto. The method of claim 1, The porous medium is a buried gas exclusion pipe structure with a porous medium, characterized in that composed of any one of a non-woven fabric, geosynthetic resins, mesh nets, or a multilayer structure thereof. The method of claim 1, The porous medium, the landfill gas exclusion pipe structure with a porous medium, characterized in that to ensure the opening through the perforated plate-like material. The method according to any one of claims 1 to 3, In the case of the semi-perforated pipe having a semicircular sealed portion to install the pipe member in the transverse direction to perform the drainage function, the porous member is attached to the upper perforated portion so as to cover the upper perforated portion of the semi-perforated pipe. Landfill gas exclusion pipe structure with a porous medium attached.