KR101905482B1 - Offshore waste landfill maintaining method - Google Patents

Abstract

The present invention relates to a method to repair a waterproof sheet of an offshore waste landfill, capable of repairing damage to the waterproof sheet with a steel pipe pile when the waterproof sheet is damaged in the offshore waste landfill constructed by stacking a permeable layer, a non-permeable layer, the waterproof sheet, and a waste layer. According to the present invention, the method to maintain a waterproof sheet of an offshore waste landfill to stack the permeable layer (L1), the non-permeable layer (L2), the waterproof sheet, and the waste layer (L3) comprises: a step (a) of penetrating the waste layer (L3) and the waterproof sheet to install a casing up to the top of the non-permeable layer (L2); a step (b) of penetrating the waste layer (L3) and the waterproof sheet to install an outer steel pipe pile inside the casing up to the non-permeable layer (L2) lower than the casing; a step (c) of penetrating the waste layer (L3), the waterproof sheet, and the non-permeable layer (L2) to install an inner steel pipe pile inside the outer steel pipe pile up to the permeable layer (L1), excavating the inside of the inner steel pipe pile to cut the damaged waterproof sheet, and excavating the non-permeable layer (L2) directly under the damaged waterproof sheet; and a step (d) of replacing a space formed by excavating the non-permeable layer directly under the waterproof sheet and the damaged waterproof sheet to fill the space with a repairing material, and inserting excavated soil into the upper part of the repairing material inside the inner steel pipe pile.

Description

{OFFSHORE WASTE LANDFILL MAINTAINING METHOD}

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] More particularly, the present invention relates to a method of repairing a marine disposal site anchored sheet capable of repairing a damaged seats in a marine repository constructed with a permeable layer, an impervious layer, an aqueduct sheet, and a waste layer.

FIG. 1A is a schematic view showing a state in which a landfill waste landfill site can be easily inspected before landfill or landfill, at a low cost, And the like.

That is, the compressed air is connected to the joint device of the underground water discharge pipe (7) of the manhole (6) portion of the underground water pipe facility, and then the air pressure is blown to the constant pressure by the compressor, It is confirmed that the high-density polyethylene liner portion, which is the awn sheet sheet layer 3, is swollen by the air pressure to check whether or not the aeration layer is broken,

If the aquifersheet layer, which is the second-order aquifer during the landfill, is broken by using the waterproofing solution injection pipe (9) formed as a pipe tube, the leachate flows through the waterproofing solution injection pipe and serves as an inspection function Then,

It can be seen that the waterproofing liquid is poured into the defective part through the waterproofing liquid injecting pipe 9 so that it can be easily repaired even when the waste is being landfilled.

That is to say, the damage of the aquifer is detected by using the air pressure and the waterproofing solution injection pipe, and the damaged aqueduct layer detected is filled with the waterproofing solution injection pipe.

However, in the case of a marine waste disposal site (marine disposal site), since the water-receiving sheet is installed only on the horizontal bottom portion of the slope and the lower portion of the slope, the water-receiving sheet is not closed and the repair method of the land- There is a limit to apply.

In other words, if the waterproofing liquid injecting pipe 9 is installed in the marine waste disposal plant in advance, it is inevitably in contact with the seawater, which may cause corrosion and the like. In addition, the waterproofing liquid injecting pipe 9, There is a problem that it is very inefficient.

FIG. 1B shows a construction diagram of a repair method of a conventional member.

That is, the portion corresponding to the repairing portion 22 of the dehydrating member 21 of the waste repository 20 is gradually bored while determining the type of the discharged soil,

The time at which the discharge of the protective soil 23 of the secondary damper member 21 is detected is determined as the upper surface of the protective soil 23 and a portion having a certain depth at the upper surface position is designated as a repair point of the secondary damper member 21, do.

At this time, after inserting the inner pipe 26 inserted into the hole of the outer ring 24 by using the packer 25 into the hole of the boring, the space 27 is formed by spraying the high pressure water from the lower outer periphery of the inner pipe 26 It can be seen that the asphalt emulsion 28 is injected here.

That is to say, the space around the injured member 21 is artificially expansively formed using high-pressure water, and the inner tube 24 is provided inside the casing while the outer tube 24 is used as a casing for injecting the asphalt emulsion 28 And the filler member 21 is filled with the repair material such as the asphalt emulsion 28 as an injection pipe.

However, it is presupposed that the high-pressure water disturbs the upper surface protective soil 23 of the water-containing member 21 to secure an extended space. In the case of the marine waste treatment plant, the water is immersed in seawater, In addition, not only the workability is deteriorated even if the packer is used, but also reverse flow may occur when high-pressure water is used, so that it is difficult to further prevent construction contamination due to leachate and contamination.

As a result, although the conventional methods for repairing member-based members mostly disclose the applicable methods at land-based waste disposal sites, they have not been able to disclose a method for repairing the member-based members that can be applied to marine repositories.

Korean Patent No. 10-0350280 (Name of the invention: a device for healing a wastewater of a landfill and its diagnostic method, public date: Aug. 24, 2002) Japanese Patent Application Laid-Open No. 11-300308 (Title of the invention: Method of repairing a member of the public, date of publication: November 02, 1999)

Accordingly, it is an object of the present invention to provide a marine disposal facility capable of repairing damaged marine products installed in a marine disposal site and repairing marine damaged areas quickly while overcoming the difficulties of contamination and construction due to leachate (W) And to provide a method for repairing a maintenance sheet.

In order to achieve the above object, according to the present invention,

Only the horizontal bottom portion of the inclined surface of the sea repository and the lower portion of the inclined surface is provided with the water receiving sheet so that the waste layer L3 is exposed to seawater in the state where the water receiving sheet is not closed and the leachate W is always left, A method for repairing a marine disposal site aiding sheet in which a permeable layer (L1), an impervious layer (L2), a water receiving sheet, and a waste layer (L3) are laminated on the layer (L3) (a) The casing is passed through the waste layer L3 and the water-receiving sheet to the upper end of the impervious layer L2 so that the leachate W of the waste layer L3 passes through the impervious layer L2, Thereby preventing penetration into the casing interior; (b) An outer steel pipe file is inserted through the waste layer (L3) and the water-receiving sheet inside the casing and down to the impervious layer (L2) below the casing so that both the casing and the outer steel pipe are extended to the impervious layer So that the leachate (W) of the waste layer (L3) is prevented from penetrating into the space between the casing and the outer steel tube pile file; (c) An inner steel pipe file is inserted into the outer steel pipe file through the waste layer (L3), the aeration sheet and the impervious layer (L2) to the permeable layer (L1), so that the tip of the inner steel pipe is extended to the water permeable layer So that the leachate W can be prevented from penetrating the inside of the inner steel pipe and the inner side of the inner steel pipe file is excavated to cut the damaged aqua regenerated sheet so as to excavate the damaged impervious layer L2 immediately below the damaged aquatic sheet. And (d) filling the excavated space immediately below the water-impermeable sheet with water and replacing the damaged water-receiving sheet, and embedding the excavated soil on top of the repair material in the inner steel pipe file, The steel pipe file and the casing are pulled out.

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The method of repairing a water surface sheet of a marine repository according to the present invention is a method of repairing a water surface of a marine repository, in which even if seawater is always contained in a waste layer disposed above a damaged water sheet, infiltration of leachate is hardly generated, Repair can be done.

According to another aspect of the present invention, there is provided a method of repairing a water surface sheet of a marine repository, which comprises cutting a damaged water sheet, filling the cut portion with the repair material immediately downward, and filling the excavated waste layer with the upper portion of the charged repair material, Repair of the disposal site order sheet becomes possible.

FIG. 1A is a view showing maintenance and construction drawings of a conventional landfill,
FIG. 1B is a view showing the construction of a conventional repair method of a member,
FIGS. 2A, 2B, and 2C are views showing a repair method of a marine disposal site anchoring sheet according to the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings, which will be readily apparent to those skilled in the art. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. In order to clearly illustrate the present invention, parts not related to the description are omitted, and similar parts are denoted by like reference characters throughout the specification.

Throughout the specification, when an element is referred to as "comprising ", it means that it can include other elements as well, without excluding other elements unless specifically stated otherwise.

FIGS. 2A, 2B, and 2C are views showing a method of repairing a marine disposal site anchoring sheet according to the present invention, respectively.

2A is a case in which the casing 400, the external steel pipe file 500 and the internal steel pipe file 600 are combined and FIG. 2B is a view showing a state in which the external steel pipe file 500 is not constructed 2C shows a case where only the steel pipe file 700 corresponding to the internal steel pipe file is used without using the casing 400 and the external steel pipe file 500 as the case of combining the casing 400 and the internal steel pipe file 600 The method of repairing a marine disposal site anchoring sheet according to the present invention is characterized in that a steel pipe file is used instead of installing an injection pipe for boring the conventional repair material through boring.

In particular, referring to FIG. 2A,

It can be seen from the characteristics of the site to be constructed that the water vapor permeable layer L1, the impervious water layer L2, the water receiving sheet 100, the waste layer L3 and the surface layer L4 are laminated up and down. It is possible to repair the damaged water-receiving sheet while preventing the leakage of the leachate W from the waste layer mixed with the seawater when the water-containing sheet 100 on which the waste is accumulated is damaged.

First, the permeable layer L1 may be, for example, a ground layer at a position where an original marine repository is installed, and may be a soil layer.

Since the permeable layer L1 can penetrate the contaminated water by the waste, it is important to select the position where the impervious layer L2 is formed on the permeable layer L1 at the sea repository.

Since the impervious layer L2 can be, for example, a clayey soil layer and the impervious layer L2 is present, the present invention can be used to prevent the leachate W from penetrating the steel pipe of the waste layer L3, So that it does not penetrate to the inside due to the water level difference.

Unlike the land-based waste disposal plant, in the case of a marine repository, only the horizontal bottom portion of the marine repository and the lower portion of the slope are installed, so that the water-saving sheet is not clogged In case of actual damage, treatment of leachate (W) becomes very important.

That is, if the water-receiving sheet 100 is damaged due to deterioration or the like, the leachate W is impregnated into the damaged sheet between the water-receiving sheet and the impervious layer L2. If the time passes, have.

If the damaged sheet 100 is inspected by using various inspection methods, if the exposed water sheet 100 buried by the waste layer L3 is exposed and repaired by digging or the like, It is uneconomical that the method used in the conventional landfill waste disposal field is limited to be applied as it is, so that there is a problem of pollution by the leachate (W) and difficulty in securing the workability.

Accordingly, the present invention is capable of restricting cutting of the entire water-receiving sheet around the damaged water-receiving sheet 100 and by embedding the water-repellent material 300 into the lower and right impervious layers L2 around the cut- And the like.

The waste layer (L3) is a waste accumulated on the water sheet (100), and is formed as a layer having a certain depth by stacking materials generated after burning trash or the like in the land in advance using a barge or the like.

The waste layer (L3) is exposed to seawater and mixed so that the leachate (W) always remains. When the steel pipe is pierced through the water level difference, the leachate penetrates through the tip of the steel pipe.

This problem is solved by a method in which the leachate W is prevented from penetrating to the inside via the tip of the steel pipe file in such a manner that the steel pipe file is extended to the impermeable layer L2 and the permeable layer L1 below the waste layer L3 .

The surface layer L4 may be various floats piled up on the upper surface of the waste layer L3.

As a result, when the water receiving sheet 100 is damaged, the method of repairing the surface layer L4 and the waste layer L3 by excavating the surface layer L3 in a tearing manner,

In the case of a marine repository, it can be seen that excessive effort and expense are required, and the boring method is also very difficult due to the infiltration of leachate.

Accordingly, when a damaged water sheet 100 is identified, a pipe pipe passing through the damaged water sheet 100 is installed, the water impervious layer L2 under the water sheet 100 is exposed to a predetermined depth, And the damaged water sheet 100 is replaced by the repair material 300. The following description will be made on the basis of the first, second, and third embodiments.

[Method of repairing a marine disposal site anchoring sheet according to Embodiment 1]

A method of repairing a marine disposal site anchoring sheet according to the first embodiment will be described with reference to FIG.

First, the casing 400 penetrates the surface layer L4 and the waste layer L3, and the damaged water sheet 100 is positioned on the inner side, and the waterproof layer L2 is also installed. Since the casing 400 is somewhat larger in diameter, it is preferable to extend only to the upper end of the impervious layer L2.

In order to minimize the disturbance of the impervious layer (L2) by the installation of the casing (400), it can be installed by press fitting. The press fitting equipment can be mounted on the barge line and can be installed at a desired position. Thus, it can be seen that the leachate W in the waste layer L3 has a constant water level.

When the casing 400 is installed up to the impervious layer L2, the leachate W of the waste layer L3 must pass through the impervious layer L2. Therefore, it is possible to prevent penetration of the leachate W along the front end of the casing 400 .

Next, the outer steel pipe pile 500 is installed inside the casing 400 by a method such as indentation, and the inside of the casing 400 may be an empty space when excavated, It will almost never occur.

It can be seen that the external steel pipe file 500 has a diameter smaller than that of the casing 400 and can also be extended to the impervious layer L2. In order to extend the penetration path of the leach water W, the casing 400 ).

When the outer steel pipe file 500 is installed, the leachate W tries to penetrate into the space between the casing 400 and the outer steel pipe files 500, but the casing 400 and the outer steel pipe files 500 Are all extended to the impervious layer L2 so that the leachate W is prevented from penetrating into the space between the casing 400 and the file of the external steel pipe file 500.

Next, the inside of the external steel pipe pile 500 is further excavated while the inside of the external steel pipe pile 500 is additionally constructed. In the case of excavation, the inside of the external steel pipe pile 500 may be an empty space. There will be almost no empty space.

It can be seen that the inner pipe file 600 has a diameter smaller than that of the outer pipe filament 500 and particularly extends to the permeable layer L1 below the non-plugpable layer L2.

If the inner steel pipe file 600 is installed, even when the leachate W tries to penetrate into the space between the outer steel pipe file 500 and the inner steel pipe file 600 by the water level difference, The leachate W is hardly infiltrated into the space between the external steel pipe pile 500 and the internal steel pipe pile file 600 because the penetration path of the leachate W due to the water level difference becomes very long.

Thus, the damaged water sheet 100 is cut while the leached water W is hardly infiltrated, and the excavation work proceeds to a certain depth of the impervious layer L2 immediately below the damaged water sheet 100. [

At this time, the final internal steel pipe file 600 is installed to the final water permeable layer L1 by a method such as indentation after completion of the excavation work, and the tip of the internal steel pipe file 600 is extended to the water permeable layer L1, So that it can be prevented from penetrating into the inner steel pipe file 600.

Next, since the cut of the damaged water sheet 100 can be confirmed by visual inspection, CCTV, or the like, it is possible to replace the damaged water sheet 100 by a predetermined depth and directly below the damaged water sheet 100, (300) is filled into the inner steel pipe (600).

The repair material 300 may be a material that can fill a certain space, but has an order performance, and may include urethane or the like.

Next, the excavated soil (waste layer, etc.) generated while digging into the internal steel pipe pile 600 embedded in the repair material 300 is burnt as it is, so that no additional waste treatment occurs.

Then, the internal steel pipe file 600, the external steel pipe file 500, and the casing 400 are sequentially withdrawn, and the space exposed at the time of drawing can be filled with the excavated soil (waste layer, etc.).

As described above, when the casing 400, the external steel pipe pile 400 and the internal steel pipe pile 600 are used as in the first embodiment, the leachate W hardly penetrates the repair material 300, Is very large.

[Method of repairing method of marine disposal site anchoring sheet according to Embodiment 2]

2B illustrates a construction diagram of a method of using an internal steel pipe file 600 without using an external steel pipe file 500, in which the casing 400 is used in contrast to FIG. 2A. It is possible to secure the workability and economical efficiency by omitting it.

Specifically, as shown in FIG. 2B,

The casing 400 penetrates through the surface layer L4 and the waste layer L3 so that the damaged water sheet 100 is positioned on the inner side and the impervious layer L2 is also installed. Accordingly, the leachate W in the waste layer L3 has a constant water level.

Next, the internal steel pipe pile 600 is directly installed inside the casing 400 by a method such as press fitting.

It can be seen that such an inner steel pipe file 600 has a diameter smaller than that of the casing 400 and is extended to the permeable layer L1 through the surface layer L4 and the impervious layer L2.

When the internal steel pipe file 600 is installed, the leakage of the leachate W into the space between the casing 400 and the internal steel pipe file 600 may also occur. However, It is possible to sufficiently prevent penetration of the leachate W into the inner steel pipe pile 600, which is advantageous in terms of economy and efficiency compared to the first embodiment.

In this way, the damaged water sheet 100 is cut while the inside of the internal pipe file 600 is excavated, and this excavation operation is the same as proceeding to a certain depth of the impervious layer L2 immediately below the damaged water sheet 100.

After completion of the excavation work, the final internal steel pipe file 600 is also applied to the final permeable layer L1 by a method such as indentation.

Next, since the cut of the damaged water sheet 100 can be confirmed by visual inspection, CCTV, or the like during construction, it is possible to replace the damaged water sheet 100 with a predetermined depth of the impervious layer L2 directly under the damaged water sheet 100 The repair material 300 is charged into the inner steel pipe pile 600.

The maintenance material 300 is the same in that it can fill a certain space and has a degree of performance.

Next, the waste material excavated inside the internal steel pipe 600 in which the repair material 300 is buried is burnt as it is, so that no additional waste treatment occurs.

After that, the internal steel pipe file 600 and the casing 400 are sequentially withdrawn, and the space exposed at the time of drawing can be filled with the waste layer or the like which has been excavated.

[Method of repairing method of marine disposal site anchoring sheet according to Embodiment 3]

FIG. 2C is a view showing a construction using a steel pipe file 700 in a state where the casing 400 is not used, as compared with FIG. 2B.

2A and 2B, the casing 400 and the external steel pipe file 500 are not installed, and only the steel pipe file 700 corresponding to the internal steel pipe file is used.

Specifically, as shown in FIG. 2C,

And the steel pipe file 700 is installed so that the damaged order sheet 100 is located inside.

This steel pipe file 700 corresponds to an internal steel pipe file and can be seen to extend through the impervious layer L2 to the permeable layer L1.

If the casing 400 and the external steel pipe 500 are not installed, the leakage of the leachate W may occur due to the water level difference. However, since the steel pipe file 700 extends to the water permeable layer L1, It can be fully controlled, which is most advantageous in securing economic efficiency, efficiency and promptness.

Thus, the damaged water sheet 100 is cut while drilling the inside of the steel pipe file 700, and such drilling operation proceeds to a certain depth of the impervious layer L2 immediately under the damaged water sheet 100. [

Also, the final steel pipe file 700 is installed to the final permeable layer L1 by a method such as indentation after completion of the excavation work progress.

Next, since the cut of the damaged water sheet 100 can be confirmed by visual inspection, CCTV, or the like during construction, it is possible to replace the damaged water sheet 100 with a predetermined depth of the impervious layer L2 directly under the damaged water sheet 100 The repair material 300 is charged into the steel pipe pile 700.

The maintenance material 300 may be a material that can fill a certain space, but has an order performance.

Next, the excavated soil by the waste layer excavated into the steel pipe pile 700 embedded in the repair material 300 is buried as it is, so that no additional waste treatment occurs. And then the steel pipe file 700 is pulled out, so that the construction becomes very simple.

As a result, it can be seen that the repair material 300 is cut and replaced by the damaged sheet 100. When it is necessary to expand the filling part of the repair material 300, the damaged water sheet 100 and the lower impervious layer L2 ) Can be used as an excavator using an extension bit or the like.

In addition, in the case of the first and second embodiments of the present invention, artificial damage to the water-receiving sheet 100 due to subsequent drawing of the casing 400 and the external steel pipe file 500 may occur. Therefore, It is preferable that the injection pipe is installed by using the inner construction space after the casing and the outer steel pipe pile 500 are constructed.

It will be understood by those skilled in the art that the foregoing description of the present invention is for illustrative purposes only and that those of ordinary skill in the art can readily understand that various changes and modifications may be made without departing from the spirit or essential characteristics of the present invention. will be. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive. For example, each component described as a single entity may be distributed and implemented, and components described as being distributed may also be implemented in a combined form.

The scope of the present invention is defined by the appended claims rather than the detailed description and all changes or modifications derived from the meaning and scope of the claims and their equivalents are to be construed as being included within the scope of the present invention do.

100: Order sheet 300: Repair material
400: casing
500: External steel pipe file
600: Internal steel pipe file
700: Steel pipe file
L1: permeable layer L2: impervious layer
L3: waste layer L4: surface layer
W: Leachate

Claims (8)

Only the horizontal bottom portion of the inclined surface of the sea repository and the lower portion of the inclined surface is provided with the water receiving sheet so that the waste layer L3 is exposed to seawater in the state where the water receiving sheet is not closed and the leachate W is always left, Maintenance of the marine repository order sheet in which the permeable layer (L1), the impervious layer (L2), the water sheet (100) and the waste layer (L3) are laminated, through which the leachate penetrates through the front end of the steel pipe As a method,
(a) The casing 400 is passed through the waste layer L3 and the water sheet 100 to the upper end of the impervious layer L2 so that the leachate W of the waste layer L3 passes through the impervious layer L2 So as to prevent penetration into the casing 400 along the tip of the casing 400;
(b) The outer steel pipe pile 500 is inserted into the casing 400 through the waste layer L3 and the water-receiving sheet 100, and is installed below the casing 400 to the impervious layer L2, 400 and the external steel pipe file 500 extend to the impervious layer L2 so that the leachate W of the waste layer L3 does not penetrate into the space between the casing 400 and the external steel pipe file 500 ;
(c) The inner steel pipe pile 600 is installed inside the outer steel pipe pile 500 through the waste layer L3, the aeration sheet 100, and the impermeable layer L2 to the permeable layer L1, 600 can be extended to the water permeable layer L1 to prevent the leachate W from penetrating the inside of the inner steel pipe pile 600. The inner side of the inner steel pipe pile 600 is excavated to cut the damaged awn sheet Allowing the damaged under-water sheet to be excavated under the impervious layer (L2); And
(d) filling the excavated space below the water-impermeable sheet under the excavated space and replacing the damaged water-receiving sheet, and embedding the excavated soil in the interior of the inner steel pipe pile (600) above the repair material (300) A method for repairing an internal disposal site anchorage sheet (600), an external steel pipe file (500), and a casing (400). The method according to claim 1,
In the step (c), the damaged water-impervious sheet excavation is performed so as to be larger than the diameter of the inner steel pipe pile 600 so that the repair material 300 is filled in the excavation space below the expanded water- Wherein the internal steel pipe piles (600) below the lower impervious layer excavation space are constructed by press-fitting to the permeable layer (L1). The method according to claim 1,
In the step (d), the inner steel pipe file 600, the outer steel pipe file 500, and the casing 400 are sequentially drawn out, and the space exposed at the time of drawing is filled with a digging soil- Repair method. delete delete delete delete delete

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