JP6995911B2 - Protective block used at waste disposal site - Google Patents

Description

The present invention relates to a protective block body used in a waste disposal site, and more specifically to a protective block body installed on a water-impervious sheet laid in a waste disposal site and a protective mat on the protective block body.

The final waste disposal site (hereinafter referred to as the waste disposal site) keeps the required amount of waste safe while preventing the outflow of sewage, the scattering / outflow of waste, and the generation of gas from the viewpoint of environmental protection. It is a structure that can be disposed of in landfill. Waste disposal sites are classified into three types according to the Waste Disposal Law: closed-type final disposal sites, stable-type final disposal sites, and controlled-type final disposal sites. The types of industrial waste that can be landfilled at the site are specified.

In order to prevent contamination of groundwater, the bottom surface and slope of the waste landfill area of the waste disposal site are covered with a geomembrane sheet. Furthermore, in order to prevent the water-impervious sheet from being damaged by protrusions contained in the waste and having holes, and water leaking from the water-impervious sheet into the ground, and further to protect the water-impervious sheet. A protective layer (hereinafter referred to as a protective layer such as sand) is formed on which a protective mat is laid and the protective material is sand or soil. The impermeable sheet is a sheet having impermeable performance processed from, for example, rubber, vinyl chloride, polyethylene, polyurethane, etc., and the protective mat is a mat for protecting the impermeable sheet from damage, for example, non-woven fabric, felt, etc. Made using.

FIG. 1 is a schematic view showing a water-impervious sheet laid in a waste treatment plant and a protective layer such as sand. The water-impervious sheet 1 is laid so as to cover the entire surface of the slope 5a and the bottom surface 5b of the landfill area 5, a protective mat 2 is laid on the water-impervious sheet 1, and a backhoe, a power shovel, or the like is placed on the protective mat 2. Using heavy machinery and human power, a protective layer 3 such as sand having a thickness of about 500 mm is formed. By doing so, it is possible to prevent the water-impervious sheet from being damaged or deteriorated.

As shown in FIG. 1 (a), first, a protective layer 3 such as sand is formed on the entire bottom surface 5b of the waste disposal site 5, and further, protection of sand or the like is provided on the slope 5a of a certain height from the bottom surface 5b. Form layer 3. When the landfill of waste progresses and the accumulation of waste progresses to the vicinity of a certain height, as shown in FIG. 1 (b), a protective layer 3 such as sand is further formed on the slope 5a of the next constant height. As shown in FIG. 1 (c), a protective layer 3 such as sand is formed on a slope 5a having a certain height and a certain height. A protective layer is formed up to the top of the slope 5a. The thickness of the protective layer 3 such as sand on the slope 5a is also about 500 mm.

Further, Patent Documents 1 and 2 propose a technique for installing a protective mat on a water-impervious sheet.

Japanese Unexamined Patent Publication No. 2011-205179 Utility Model Registration No. 3154202 Gazette

The work of forming the protective layer on the slope of the waste treatment plant requires a large amount of sand to be carried in and constructed, and is carried out by heavy machinery and manpower, which is a large-scale, labor-intensive and time-consuming work.

Nowadays, the present inventor is a protective block body that protects a water-impervious sheet laid at a waste disposal site, and can be constructed by manual work instead of a protective layer such as sand, and has low cost and high protection. We have developed a protective block for forming a protective layer with performance.

An object of the present invention is to provide a protective block body used in a waste disposal site.

The protective block body of the present invention for achieving the above object is a plurality of protective block bodies installed side by side so as to cover the impermeable sheet laid at the waste disposal site and the protective mat on the protective block body . Each of the protective block bodies is a box body having a first surface facing the protective mat and a second surface facing the first surface, and waste of inorganic fiber material to be disposed of. The inside of the box is provided with the waste of the inorganic fiber material, and the waste of the inorganic fiber material is only crushed glass wool or rock wool, and the box body is: It is characterized in that it is formed by bending a sheet body .

Preferably , the sheet body is a synthetic resin sheet made of polyethylene or polypropylene.

At least the first surface of the box is the waste discarded at the waste disposal site when the protective block is installed on a protective mat on a geomembrane sheet laid on the slope of the waste disposal site. It is preferable that the protective block body has a sliding property such that the protective block body slides down on the protective mat on the water-impervious sheet in accordance with the subsidence.

Further, the protective block body described above may further contain waste of mat products (mat waste) to be disposed of. The mat waste is arranged between the inorganic fiber waste filled inside the box and the first or second surface of the box. The mat waste is, for example, a discarded tile carpet.

According to the present invention, there is provided a protective block body manufactured by recycling waste. By using this protective block instead of the sand used to form the conventional protective layer on the slope of the waste disposal site, the protective layer can be formed manually without using heavy machinery. Is easy and simplified. Further, since the thickness of the protective layer can be reduced, the waste volume can be increased. Further, it has a slip property with respect to the water-impervious sheet, and damage to the water-impervious sheet is prevented.

It is a schematic diagram which shows the impermeable sheet laid in the waste treatment plant and the protective layer such as sand. It is a schematic diagram schematically showing the mode in which the protective block body in the embodiment of the present invention is installed in the waste disposal site. It is a figure which shows the structural example of the protection block body in embodiment of this invention. It is a figure which shows another structural example of the protection block body in embodiment of this invention. It is a figure explaining the state which the block body 10 in embodiment of this invention slides with respect to a protective mat.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. However, such embodiments do not limit the technical scope of the invention.

FIG. 2 is a schematic view schematically showing a mode in which the protective block body according to the embodiment of the present invention is installed at a waste disposal site. As will be described later, the protective block body 10 of the present invention is a block-shaped structure in which a rectangular parallelepiped box body is filled with waste of inorganic fiber materials such as glass wool and rock wool, and is a waste disposal site 5. It can be installed on the protective mat 2 on the water-impervious sheet 1 laid so as to cover the bottom surface 5b and the slope 5a. In FIG. 2, the bottom surface 5b of the waste disposal site 5 forms a protective layer 3 such as sand as a protective material on the protective mat 2 on the impermeable sheet 1, and the slope 5a of the waste disposal site 5 is formed. Shows the state in which the protective block body 10 in the present invention is installed. A plurality of protective block bodies 10 are installed side by side on the slope 5a so as to cover the water-impervious sheet 1 and the protective mat 2 in place of the protective sand. The protective block body 10 of the present invention can be installed on the bottom surface 5b of the waste disposal site 5 in place of the protective layer 3 such as sand, but in the example of the present embodiment, the case where it is installed on the slope 5a is an example. Will be explained below.

3A and 3B are views showing a configuration example of the protective block body 10 according to the embodiment of the present invention, FIG. 3A is an external perspective view thereof, and FIG. 3B is a cross-sectional view thereof.

The protective block body 10 is composed of a rectangular parallelepiped box body 11 and a waste 12 of an inorganic fiber material such as glass wool or rock wool filled therein. The waste 12 of the inorganic fiber material may be crushed. By crushing the waste 12 of the inorganic fiber material with a crusher or the like, the waste 12 becomes small pieces such as glass wool and rock wool, facilitating the filling work of the waste 12 into the box body 11 and further. Can be filled uniformly. The box body 11 is formed into a rectangular parallelepiped shape by bending, for example, a sheet body which is a synthetic resin sheet made of polyethylene or polypropylene. Specifically, a general-purpose so-called blue sheet, which is widely used in general, can be used as the sheet body.

The rectangular parallelepiped box body 11 faces the first surface 11a on the side facing the water-impervious sheet 1 and the protective mat 2 and the first surface 11a when installed on the slope 5a of the disposal site 5. It is formed in a rectangular parallelepiped shape having two surfaces 11b. The vertical dimensions of the first surface 11a and the second surface 11b of the box body 11 are, for example, about 900 mm to 1000 mm, the horizontal dimensions are, for example, about 500 mm to 1000 mm, and the thickness dimension of the box body 11 is about 150 mm to 250 mm. be. The size and size of the box 11 are preferably determined so as to be large and heavy enough to be carried by an operator. The thickness of the box 11 is sufficient so that sharp protrusions and the like contained in the waste to be landfilled do not reach the water-impervious sheet, and a protective layer such as sand (thickness of about 500 mm). It can be made thinner, which will substantially increase the volume of the waste disposal site.

The inside of the box 11 is filled with waste 12 of an inorganic fiber material such as glass wool or rock wool. In particular, board-shaped or roll-shaped glass wool and rock wool used as a building heat insulating material or a sound absorbing material are harmless and stable materials for a long period of time, and are preferably disposed of as industrial waste in a large amount. By crushing these with a crusher, small pieces of about several cm are made and used as a filling material. As a result, the waste of glass wool or rock wool material can be recycled and effectively utilized as a part of the equipment of the disposal site without landfill disposal as waste.

The filling density of the filled inorganic fiber waste 12 (for example, crushed glass wool or rock wool small pieces) is, for example, about 200 kg / m ³ . At this density, a protective block of 1000 mm in length x 1000 mm in width x 200 mm in thickness weighs about 40 kg, and a protective block in 1000 mm in length x 500 mm in width x 200 mm in thickness weighs about 20 kg. The weight is such that at least one or two workers can handle the installation work. That is, it can be carried by hand and can be installed side by side on a slope without using heavy machinery.

4A and 4B are views showing another configuration example of the protective block body according to the embodiment of the present invention, FIG. 4A is an external perspective view thereof, and FIG. 4B is a cross-sectional view thereof. In another configuration example of the protective block 11, in addition to filling the inside of the box body 11 with the waste 12 of the inorganic fiber material as compared with the configuration example of FIG. 3, as an additional component, the box body A synthetic resin or rubber mat waste (mat waste) 13 such as PVC (polyvinyl chloride) or PP (polypropylene) is inserted and arranged inside the 11. By arranging the mat waste 13, the structure becomes more difficult for sharp objects to pass through, and the protection performance against the water-impervious sheet 1 is improved. The mat waste 13 is arranged on the back surface side (inside side of the box body 11) of the first surface 11a or the second surface 11b of the box body 11, and is the waste 12 of the inorganic fiber material and the first of the box body 11. It is arranged between the surface 11a or the second surface 11b.

The mat waste 13 is a mat product to be disposed of, for example, a commercially available so-called tile carpet. The tile carpet is a flat and rectangular mat product in which a carpet material is incorporated into a PVC mat, and its disposal amount is relatively large as industrial waste, and the waste used for manufacturing the protective block body 10 of the present invention. Is optimal as. The vertical and horizontal dimensions of the tile carpet are about 500 mm x 500 mm (thickness about 10 mm to 20 mm), and the vertical and horizontal dimensions of the box 11 of the protective block body 10 are multiples of the size of the tile carpet to make the tile carpet. A required number of tile carpets can be inserted and arranged according to the dimensions of the box 11 (dimensions of the second surface 11b) without processing such as cutting.

By arranging the mat waste 13 such as tile carpet, the risk that the protrusions contained in the waste to be landfilled reach the impermeable sheet is further reduced, and the protection performance to prevent the impermeable sheet from being damaged is improved. In addition to further improvement, there is a possibility that the thickness of the protective block body 10 can be made thinner by relatively reducing the filling amount of the waste 12 of the inorganic fiber material. In addition to the waste of inorganic fiber materials such as glass wool and rock wool, the mat waste 13 can be recycled and effectively utilized as a part of the equipment of the disposal site without being disposed of as waste by landfill. ..

FIG. 5 is a diagram illustrating a state in which the protective block body 10 according to the embodiment of the present invention slides on the protective mat 2 on the water-impervious sheet. FIG. 5B is a diagram showing a case where a protective layer 3 such as sand is formed on a slope, and when the waste is landfilled and the waste is deposited after the protective layer 3 on the slope is formed. As time passes, the waste deposit 4 gradually sinks, and the water-impervious sheet 1 and the protective mat 2 are pulled so as to be dragged, and the water-impervious sheet 1 and the protective mat 2 may be damaged. be.

On the other hand, in the protective block body 10 of the present invention, as shown in FIG. 5A, the protective block body 10 is laid on the slope of the waste disposal site as the material of the sheet body forming the box body 11. Following the subsidence of the waste deposit 4 buried in the waste disposal site when it was installed on the protective mat 2 on the impermeable sheet 1, the protective block body 10 follows the subsidence of the protective mat on the impermeable sheet 1. 2 A material having a sliding characteristic of sliding down is selected. As a result, the protective block body 10 also slides down with respect to the protective mat 2 on the impermeable sheet according to the subsidence of the waste, so that the impermeable sheet itself is dragged and pulled according to the subsidence of the waste. It is possible to prevent the water-impervious sheet 1 and the protective mat 2 from being damaged. The so-called blue sheet that can be used as the sheet body forming the box body 11 is a material that satisfies this slip property.

The present invention is not limited to the above-described embodiment, and there are design changes within a range that does not deviate from the gist including various modifications and modifications that can be conceived by a person having ordinary knowledge in the field of the present invention. Of course, it is also included in the present invention.

1: Impermeable sheet, 2: Protective mat, 3: Protective layer such as sand, 4: Waste deposit, 5: Waste disposal site, 5a: Slope, 5b: Bottom surface, 10: Protective block body, 11 : Box body, 11a: 1st surface, 11b: 2nd surface, 12: Inorganic fiber waste, 13: Mat waste

Claims (5)

Each of a plurality of protective block bodies installed side by side so as to cover the water-impervious sheet laid at the waste disposal site and the protective mat on the protective block body.
A box body having a first surface facing the protective mat and a second surface facing the first surface, and
It is a waste of the inorganic fiber material to be disposed of, and is provided with the waste of the inorganic fiber material to be filled inside the box body.
The waste of the inorganic fiber material is glass wool or rock wool that has been crushed.
The box body is a protective block body characterized by being formed by bending a sheet body. The protective block body according to claim 1 , wherein the sheet body is a synthetic resin sheet made of polyethylene or polypropylene. It is a mat waste to be disposed of and is arranged between the waste of the inorganic fiber material filled inside the box body and the first surface or the second surface of the box body. The protective block body according to claim 1 or 2, wherein the mat waste is contained. The protective block body according to claim 3 , wherein the mat waste is a discarded tile carpet. A claim characterized in that the vertical dimension of the first surface and the second surface of the box body is 900 mm to 1000 mm, the horizontal dimension is 500 mm to 1000 mm, and the thickness dimension of the box body is 150 mm to 250 mm. Item 4. The protective block body according to any one of Items 1 to 4 .

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