JP3295702B2 - Water barrier and industrial waste disposal system for industrial waste disposal site - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a water impervious wall laid on the ground surface of a waste dumping recess formed to dispose of industrial waste, and a wastewater generated in the disposal site. The present invention relates to an industrial waste disposal site system having a bottom wall structure that does not leak and penetrate into the ground and generate no pollution.

[0002]

2. Description of the Related Art In an industrial waste disposal site, in order to prevent toxic substances and toxic sewage from directly flowing out of dumped industrial waste and rainwater or the like from penetrating into the ground and causing environmental pollution. In addition, a series of water leakage prevention walls are formed by connecting and laying a water-impervious sheet for preventing water leakage over the entire ground surface of the disposal site in a non-leak state.

[0003] The impermeable sheet forming the water leakage prevention wall is
Usually, a sheet material having a thickness of about 5 mm formed mainly of rubber is used.
A felt material of about 0 mm is interposed as a cushion material, or a plate-like drainage material of about 10 mm is also interposed as a spacer. The function of this cushioning material and spacer is that the sharp part of the waste where the upper sheet was dumped or the sharpened part where the waste was destroyed pierced,
If a further load is applied on top of it and the damaged portion of the sheet becomes large or is damaged, make sure that the sharp portion does not reach the lower sheet and be damaged by the upper dumping load. This is because there is a need to provide a sufficient space, and the sheet material is also provided on the lower side to form a three-layer structure because when the upper sheet is damaged, toxic wastewater leaking from the upper sheet is This is because the sheet can be reliably received and collected by the sheet and post-processed.

[0004]

However, in the case of using the former felt material as the intermediate spacer material,
Since the heavy load of dumped waste is received over time, the felt is compressed and adheres to the shape of a plate, flattening and not keeping enough space, and the space through which water leaks is closed, Eventually, when the upper sheet is damaged, the lower sheet passes through the felt layer and the lower sheet may be damaged at the same time, and there is a problem in that the disposal site cannot be sufficiently protected. In addition, the latter plate-shaped drainage material has low compressive strength, and there is a danger that it will be compressed and flattened as in the case of felt material, and because it is narrow and short, it will be spread over the entire surface Therefore, there is a problem to be solved that the construction cost is increased and the construction cost is significantly increased.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to solve the above-mentioned problems of the water-impervious wall of a conventionally used industrial waste disposal site, and to reduce the impact and pressure received from the waste. It has a buffering property, has sufficient compressive strength, maintains its original shape without flattening even under a large load, and has such a pressure-resistant wall that can be laid quickly and easily. And an industrial waste disposal site system.

[0006]

In order to achieve the above-mentioned object, the structure of the impermeable wall for the industrial waste disposal site of the present invention, which is taken in view of a synthetic resin tape material formed to a predetermined width, is viewed from the side. A plurality of corrugated tapes 1a formed in a corrugated manner are arranged in parallel at predetermined intervals from each other. Net layers 2 and 2 forming a large number of water permeable holes are attached to both front and back surfaces of the buffer layer 1. A plate-like cushioning material 11 having flexibility that can be wound in the longitudinal direction, a lower water-impervious sheet 12 provided on the lower surface side, and a top surface side of the plate-like cushioning material 11 The upper water-impervious sheet 13 thus formed has a three-layer structure.

[0007] The configuration of the industrial waste disposal site system is such that the lower water-impervious sheet 12 is laid in a non-leak state over the entire surface 15 of the recess A for industrial waste disposal. A fixed frame 14 is formed along the circumferential direction on the upper surface side of the sheet 12 in a state of being separated from the ground surface by 12, and at least an upper surface side portion of the inclined surface of the lower impermeable sheet 12 and an upper surface of the fixed frame 14. A large number of corrugated tapes 1a in which a synthetic resin tape material formed in a predetermined width is formed in a corrugated shape in a side view over the entire surface with the side.
Are arranged in parallel at predetermined intervals from each other, and a plate-like cushioning material 11 on which net layers 2 and 2 forming a large number of water permeable holes are adhered and formed on both front and back surfaces of the buffer layer 1 is laid. Further, the upper water-impervious sheet 13 is laid in a non-leakage state on the entire surface of the lower water-impervious sheet 12 with the plate-like cushioning material 11 interposed therebetween.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In implementing a water impermeable wall configured as described above, a plate-like cushioning material 1 for forming an intermediate layer is used.
No. 1 has a compressive strength of 10% or less when a load of 50 tf / m ² in compressive strength is applied, and has a width of 600 to 300
It can be implemented as being formed in a range of 0 mm and a length of 20 to 100 m. Among them, for example, if the width is in the range of 1800 to 2400 mm and the length is 40 to 60 m, it is possible to make the size not too bulky and suitable for packing and transportation, easy to handle, and easy to lay. Can be performed efficiently.

The corrugated tape 1, which is a material forming the cushioning material 11, is formed by extruding a single or composite melt of a polyolefin-based thermoplastic synthetic resin such as polyethylene or polypropylene into a belt shape. Plate-shaped cushioning material 1
When laying 1 at the disposal site, it is necessary that the tape width and the wave pitch with respect to the tape thickness of the corrugated tape 1 be balanced in order to prevent the crushing of the waste under the pressure of the waste. In this case, or when the pitch of the tape wave is increased, the pressure crushing strength is reduced. Increasing the tape thickness not only increases the cost, but also lowers the function as a cushioning material, so that the upper water-impervious sheet 13 is easily damaged, and it becomes difficult to wind up the completed plate-like cushioning material 11. As a guide of the dimensions, the tape thickness is 0.5 to 1.5 mm,
It is appropriate that the width is 5 to 20 mm, the pitch of the waves is 5 to 20 mm, and the height of the waves is about 10 mm.

The net 2 to be adhered to both sides is not particularly limited as long as the material can be used as a normal net, but it is easy to manufacture, and the corrugated tape is used in the manufacturing process of the plate-like cushioning material 11. In consideration of the fusion property with 1a, it is preferable to use a single or composite melt of a stretched thermoplastic synthetic resin such as polyethylene, polypropylene, or polyamide having a tensile strength. If the mesh of the net 2 is too large, the water leakage drainage channel formed by the corrugated tape 1a may be buried with earth and sand, which may reduce the drainage capacity. Any size can be used as long as it is large enough to prevent the intrusion of the air. The structure and production method of the net 2 are not particularly limited, either.
It can be easily obtained by arranging thin tapes cut and formed into a width of 3 mm vertically and horizontally or forming them in a woven shape.

In the manufacture of the plate-like cushioning material 11, a large number of corrugated tapes 1 are arranged at predetermined intervals, for example, at half the width of the corrugated tape 1a or at approximately the same interval.
a. The nets 2 and 2 are continuously supplied to the heating and fusing device together with the corrugated tape 1a so as to overlap the upper and lower surfaces of the corrugated tape 1a, and the nets 2 and 2 are fused to the upper and lower surfaces of the corrugated tape 1a. 11 can be obtained. The obtained plate-like cushioning material 11 is wound and packed in a state orthogonal to the longitudinal direction.

[0012]

FIG. 1 is a perspective view showing the structure of a water impervious wall according to the present invention.
2 is an exploded perspective view showing the structure of the plate-like cushioning material of the impermeable wall, FIG. 3 is a plan view of the plate-like cushioning material of FIG. 2, FIG. 4 is a front sectional view of FIG. 3, and FIG. 6 and 7 are cross-sectional views for explaining the structure of the industrial waste disposal site of the present invention.

In the plate-like cushioning material 11 of the first embodiment shown in FIGS. 1 to 5, the corrugated tape 1a is made of polyethylene resin,
About 1mm thick and about 9mm wide tape about 18m pitch
m, a height between the upper and lower surfaces of 10 mm, and is obtained by molding into a slightly angular waveform for the purpose of securing a bonding area with the net 2 on both surfaces. Many corrugated tapes 1a are arranged in parallel at intervals of about 7 mm. Net 2 is about 1-2m wide
m is stretched to a thickness of 0.1 to 0.3 mm, and is woven in a plain weave so as to have a mesh of about 15 to 20 mesh. Have been.

The manufacturing method is such that the buffer layer 1 is composed of a large number of corrugated tapes 1a arranged in parallel at a predetermined interval.
The two nets 2 and 2 are continuously supplied to the heat and pressure fusing device together with the corrugated tape 1a so as to overlap the upper and lower surfaces of the buffer layer 1, and the nets 2 and 2 are thermally fused on both upper and lower surfaces of the buffer layer 1. Thus, the plate-like cushioning material 11 is completed. This is cut in units of 50 m or 80 m, and wound into a coil and packed.

The materials and dimensions of the corrugated tape 1a and the net 2 constituting the plate-like cushioning material 11 referred to in the first embodiment, and the arrangement intervals and mesh sizes are merely examples.
It goes without saying that the present invention can be implemented with a certain degree of deformation as described in the embodiment section. Also,
Although illustration is omitted, the width becomes 600 mm and 900 mm
The plate-shaped cushioning material 11 is manufactured, two or three of them are arranged side by side, and the side surfaces along the longitudinal direction are abutted to each other, and an inflation film is adhered on one or both surfaces of the abutted portion to make 1800 mm to 2400 mm A wide plate-shaped buffer 11 may be used.

The thus formed plate-like cushioning material 11 is sandwiched between a lower water-impervious sheet 12 and an upper water-impervious sheet 13 formed mainly of rubber to form a water-impervious wall.
This impermeable wall is represented by an imaginary line in FIG. 1 to clearly show the structure of the plate-shaped cushioning material 11.

FIGS. 6 and 7 show a sectional structure of a waste disposal site according to the present invention. Ground surface 1 of recess A that will be a disposal site
The groove 14a for installing the fixed frame 14 along the circumferential direction of the appropriate part 5 is formed in advance in a plurality of steps as appropriate. The lower water-impervious sheet 12 made of rubber is spread over the entire inner surface of the concave groove 14a of the concave portion A and the ground surface 15 in such a manner as to cover in a watertight manner. Next, concrete is cast on the upper surface of the lower water-impervious sheet 12 covering the portion of the concave groove 14a to form the fixed frame 14. The fixed frame 14 made of concrete also has a function as a press for stabilizing the lower water-impervious sheet 12 on the ground surface 15. The recess A, which becomes a disposal site in this way, includes the ground surface 1 including the fixed frame 14.
From 5 in a watertight manner.

Next, the above-mentioned plate-like cushioning material 11 is spread over the upper surface of the lower water-impervious sheet 12. In this embodiment, coarse gravel is spread over the bottom 17 at the bottom, and the plate-like cushioning material 11 is provided over the entire slope except for the bottom 17.
Are spread all over. An upper waterproof sheet 13 made of rubber is spread over the upper surface of the plate-like cushioning material 11 so as to cover the entire surface of the lower waterproof sheet 12 and is formed in a watertight manner. The upper impermeable sheet 13 is joined to the concrete fixed frame 14 by a joining member 16. Of course, the head of the coupling member 16 is watertight.
In this embodiment, the bottom 17 of the disposal site is shown as being in a state in which gravel is used instead of the plate-like cushioning material 11 as described above.
Needless to say, one may be spread.

Although the embodiments which are considered to be representative of the present invention have been described above, the present invention is not necessarily limited to only the structures of the embodiments, and the present invention has the above-mentioned constitutional requirements of the present invention. The above-mentioned purpose can be achieved, and the present invention can be carried out with appropriate modification within a range having the following effects.

[0020]

According to the present invention, the impermeable wall is provided between the lower impermeable sheet and the upper impermeable sheet on upper and lower surfaces of a buffer layer formed by arranging a number of corrugated tapes in parallel. The structure is such that the net is bonded by heat fusion or other means, and a plate-shaped cushioning material having flexibility that can be wound in the longitudinal direction is interposed by being sandwiched as an intermediate layer constituting material. Therefore, there is an advantage that it sufficiently withstands a large load of industrial waste applied to the upper impermeable sheet, maintains its original shape without flattening for a long time, and functions as a cushioning material for a long time. Even if the upper impermeable sheet is damaged by sharp substances or sharp parts in industrial waste, due to the toughness and cushioning property of the corrugated tape, the corrugated tape part is sharp substance. The lower water-impervious sheet is prevented from further proceeding, and is reliably prevented from reaching the lower water-impervious sheet, thereby reliably preventing damage to the lower water-impervious sheet. Also, if the upper impermeable sheet is damaged and sewage leaks onto the lower impermeable sheet,
It has the effect of securing a passage space for water leakage, receiving sewage on the lower impermeable sheet, facilitating recovery, reliably preventing leakage into the ground, and ensuring the occurrence of pollution.

Further, a lower water-impervious sheet is laid on the entire surface of the ground for the industrial waste disposal site, and a fixed frame is formed on the water-impervious sheet at an appropriate location along the circumferential direction. An industrial waste disposal site system in which a plate-like cushioning material and an upper water-impervious sheet as described above are laid thereon to form a water-impervious wall has a property of buffering impact and pressure received from waste. , With sufficient compressive strength, to maintain the original space without flattening even under heavy load, and to prevent toxic wastewater and toxic substances generated from dumped industrial waste from leaking out of the disposal site or into the ground. The effect is that it can be reliably prevented and contributes to the prevention of environmental pollution for a long period of time, and the laying work can be easily and quickly performed without requiring a lot of trouble, and the construction cost can be reduced. Can be expected.

[Brief description of the drawings]

FIG. 1 is a partial perspective view showing the structure of a water impermeable wall.

FIG. 2 is an exploded perspective view of the plate-like cushioning material in FIG.

FIG. 3 is a plan view of a plate-like cushioning material.

FIG. 4 is a cross-sectional front view of a plate-like cushioning material.

FIG. 5 is a sectional side view of a plate-like cushioning material.

FIG. 6 is an explanatory partial cross-sectional view showing an industrial waste disposal site.

FIG. 7 is an enlarged sectional view of a main part in FIG. 6;

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 buffer layer 1 a corrugated tape 2 net layer 11 plate-like buffer material 12 lower water-impervious sheet 13 upper water-impervious sheet 14 fixing frame 15 ground surface A recess for disposal of industrial waste

──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Nobuo Shindo 1-2-1 Sakaemachi, Takatsuki-shi, Osaka Tohaku Kogyo Co., Ltd. (56) References JP-A-9-327675 (JP, A) JP-A Heisei 9-299901 (JP, A) JP-A-8-267032 (JP, A) JP-A-7-195596 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) B09B 1/00

Claims (3)

(57) [Claims] 1. A large number of corrugated tapes (1a) formed by corrugating a synthetic resin tape material formed to a predetermined width in a side view.
A net layer that forms a large number of water permeable holes on both front and back surfaces of a buffer layer (1) in which ... are arranged in parallel at a predetermined distance from each other.
(2), a plate-like cushioning material (11) on which (2) and (2) are adhered and formed so that it can be wound in the longitudinal direction, and a lower water-impervious sheet ( 12) and an upper water-impervious sheet (13) disposed on the upper surface side of the plate-shaped cushioning material (11), and a water-impervious wall for an industrial waste disposal site formed in a three-layer structure. 2. The plate-like cushioning material (11) has a compressive strength of 50.
^2. The impermeable wall for an industrial waste disposal site according to claim 1, wherein the impermeable wall has a pressure resistance of a deformation rate of 10% or less under a load of tf / m2 and is formed to have a width of 600 to 3000 mm and a length of 20 to 100 m. . 3. The ground surface (15) of the recess (A) for industrial waste disposal
The lower water-impervious sheet (12) is laid in a non-leakage state over the entire surface of the sheet (12), and is separated from the ground surface by the lower water-impervious sheet (12). A fixed frame (14) is formed along the entire surface of at least the upper surface side of the inclined surface of the lower impermeable sheet (12) and the upper surface of the fixed frame (14). A net that forms a large number of water permeable holes on both front and back surfaces of a buffer layer (1) in which a number of corrugated tapes (1a) formed of materials in a corrugated shape in a side view are arranged in parallel at predetermined intervals. Plate-like cushioning material (1) on which layers (2) and (2) are attached
1) is laid, and further, the upper water-impervious sheet (13) is laid in a non-leakage state on the entire surface of the lower water-impervious sheet (12) with the plate-shaped cushioning material (11) interposed therebetween. Industrial waste disposal site system.