JP2006016875A - Face drainage material - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a face drainage material which enables omnidirectional proper drainage by simple work without being limited by uses, and which is excellent in strength, durability, etc. <P>SOLUTION: This face drainage material is equipped with an approximately quadrangular face member 3 which is made of a synthetic resin and which has a continuous void by forming projections and depressions on a surface, and a permeable sheet 2 for covering the face member 3; an opening 10 is provided on arbitrary one of the sides of the permeable sheet; and an extension part 20 is formed by extending the permeable sheet 2 to the outside from the backside of the opening 10. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a surface drainage material used for drainage on the back surface of retaining walls, underground drainage on turf, etc., and in particular, is not limited to the application, and enables good drainage in all directions by simple work. Further, the present invention relates to a planar drainage material that is excellent in strength, durability, and the like.

  Conventionally, planar drainage materials used for backside drainage of retaining walls, underground drainage of turf, etc. have been proposed in a wide variety of forms, and many are used in the civil engineering field.

As a representative example of these, Patent Document 1 discloses that a plurality of soft, flat water-permeable cylindrical bodies are integrally formed side by side, and an uneven resin plate in which a large number of protrusions are alternately projected on both sides is provided in each cylindrical body. Then, the water flowing into the inside through the water-permeable cylindrical body is drained through the drainage space between the protrusions, and the uneven resin plate has a high pressure resistance, but is divided into individual cylindrical body units and is internally provided. Therefore, a planar drainage material that can be bent at the joint portion of the cylindrical body is disclosed.
Further, in Patent Document 2, a synthetic resin core material in which a large number of meandering thread-like bodies are arranged in parallel is covered with a water-permeable outer skin material, and the curved part of the loop part of the thread-like body has its base part. A planar drainage material that is approximately the same width as or wider than that and is heat-sealed to the outer skin material is disclosed.
JP-A-8-189300 JP-A-63-112762

However, the planar drainage material disclosed in the former Patent Document 1 has good drainage efficiency in the length direction of the water-permeable tubular body because the uneven resin plate is divided in units of the water-permeable tubular body. The planar drainage material disclosed in the latter patent document 2 has a low compressive strength by using a meandering thread-like body as a core material. The problem of being limited to.
Furthermore, in the case where both are used by continuously adjoining the planar drainage material, in order to ensure good drainage, the skin material is cut once and the core materials are brought into contact with each other, and then the adjacent contact portion is again covered with the skin. A very laborious work of covering with a material is required.

  In view of the problems of the above-described conventional planar drainage material, the present invention is not limited to the use, enables good drainage in all directions by a simple operation, and is excellent in strength, durability, and the like. The purpose is to provide a sheet drainage material.

  In order to achieve the above object, the planar drainage material of the present invention covers the substantially square synthetic resin planar member having continuous voids by forming irregularities on the surface, and the synthetic resin planar member. In the planar drainage material provided with a water permeable sheet, an opening is provided on an arbitrary side of the water permeable sheet, and the water permeable sheet extends outward from at least one of the front surface side and the back surface side of the opening. To do.

  In this case, while providing an opening part in two adjacent sides of a water-permeable sheet, a water-permeable sheet can be extended from at least one of the surface side and back surface side of each opening part.

  Moreover, while providing an opening part in the 2 sides which a water-permeable sheet opposes, a water-permeable sheet can be extended from at least one of the surface side of each opening part, and a back surface side.

  Moreover, while being able to extend a water permeable sheet from the surface side in one opening part, a water permeable sheet can be extended from the back surface side in the other opening part.

  Moreover, a water-permeable sheet can be extended from the front and back both sides by the opening part of 1 side.

  Moreover, a through-hole can be provided in the bottom part of the recessed part of a synthetic resin planar member, and / or the top part of a convex part.

  Further, the synthetic resin sheet-like member can be formed into a long belt-like body.

  In addition, the synthetic resin planar member can be formed using a polyolefin-based resin as a main component.

  Moreover, a water-permeable sheet | seat can be formed with a woven fabric or a nonwoven fabric.

  Moreover, while arranging the water-permeable sheet which consists of a woven fabric on the single side | surface of a synthetic resin planar member, the water-permeable sheet which consists of a nonwoven fabric can be arrange | positioned on the other side, and these water-permeable sheets can be joined.

  Moreover, the woven fabric or nonwoven fabric of a water-permeable sheet can be formed with a synthetic resin fiber.

  According to the planar drainage material of the present invention, it comprises a substantially square synthetic resin planar member having continuous voids by forming irregularities on the surface, and a water permeable sheet covering the synthetic resin planar member. In the planar drainage material, an opening is provided on an arbitrary side of the water permeable sheet, and the water permeable sheet is extended outward from at least one of the front surface side and the back surface side of the water permeable sheet. The ends of the synthetic resin planar members can be connected to each other, and even at this connection, the amount of drainage equivalent to that of a single planar drainage material can be secured. In addition, it is possible to completely prevent the intrusion of earth and sand into the connecting portion by overlapping and joining the extended water-permeable sheet on the water-permeable sheet of the connection partner.

  In this case, by providing openings on two adjacent sides of the water-permeable sheet and extending the water-permeable sheet from at least one of the front surface side and the back surface side of each opening portion, a vertical and horizontal grid-like connection becomes possible. .

  Moreover, while providing an opening part in the 2 sides which a water-permeable sheet opposes and extending a water-permeable sheet from at least one of the surface side of each opening part and a back surface side, linear connection of a horizontal alignment etc. is attained.

  Moreover, while extending a water-permeable sheet from the surface side in one opening part and extending a water-permeable sheet from the back surface side in the other opening part, the water-permeable sheet extended between the planar drainage materials to connect is provided. It can be bonded to the front and back surfaces of the connection partner.

  Moreover, the extended water-permeable sheet can be joined to the surface and back surface of a connection other party by extending the water-permeable sheet from the front and back both sides with the opening of one side.

  Moreover, by providing a through-hole at the bottom of the concave portion and / or the top of the convex portion of the synthetic resin planar member, the water passage state is qualitative and the amount of water inside the planar drainage material is more equalized.

  Moreover, by making the synthetic resin sheet-like member into a long belt-like body, the amount of waste water treatment is increased, and connection work in the long direction is reduced.

  In addition, by forming the synthetic resin planar member with a polyolefin resin as a main component, it is possible to maintain necessary strength and flexibility for a long time without corrosion, and to avoid the problem of environmental pollution. it can.

  In addition, by forming the water permeable sheet from a woven fabric or a non-woven fabric, the required water permeability level and strength can be easily selected depending on the grade of the woven fabric or the non-woven fabric.

  In addition, a water-permeable sheet made of woven fabric is arranged on one side of the synthetic resin sheet-like member, and a water-permeable sheet made of non-woven fabric is arranged on the other side, and these water-permeable sheets are joined to each other for use. Depending on the situation, the characteristics of each of the woven and non-woven fabrics can be utilized.

  Moreover, by forming the woven or non-woven fabric of the water permeable sheet with synthetic resin fibers, it is possible to maintain the necessary strength and flexibility for a long period of time without corroding the water permeable sheet.

  Hereinafter, the planar drainage material embodiment of the present invention is described based on a drawing.

In FIG. 1, the 1st Example of the planar drainage material 1 of this invention is shown.
The surface drainage material 1 includes a substantially square synthetic resin surface member 3 having continuous voids by forming irregularities on the surface, and a water permeable sheet 2 that covers the synthetic resin surface member 3. In addition, an opening 10 is provided on any one side of the water permeable sheet 2, and the water permeable sheet 2 is extended outward from the back side of the opening 10 to form an extended portion 20.
In this planar drainage material 1, the opening 10 is formed on only one side on the right side in the figure, but for example, the opening 10 can be formed on the left side in the figure. In this case, the extended portion 20 of the water permeable sheet 2 is not necessarily provided in the opening 10 on the left side.

  Further, as shown in FIG. 2, the synthetic resin sheet-like member 3 is provided with a hollow concave portion 31 and a convex portion 32 having regularity on both the front surface and the back surface, respectively ( The concave portion 31 on the front surface side becomes a convex portion 32 on the back surface side), and a through hole 30 is provided in the bottom portion of the concave portion 31 and the top portion of the convex portion 32.

In such a synthetic resin sheet-like member 3, a synthetic resin can be suitably used because of its good corrosion resistance, and a thermoplastic resin is preferred because of its good moldability. Polyvinyl-based vinyl chloride and vinyl acetate, polyolefin-based polyethylene, polypropylene and the like, mixtures of these synthetic resins, copolymers of these synthetic resins with ethylene-vinyl acetate, elastomers, modified polyolefins, etc. Thus, a polyolefin-based synthetic resin can be optimally used because the mixture can be used more suitably and there are few pollution factors.
Needless to say, rubber or the like can be used for the synthetic resin planar member 3 regardless of whether it is natural or synthetic.

  Moreover, the permeable sheet 2 can use the woven fabric and nonwoven fabric which consist of a fiber regardless of a natural and synthetic | combination, and can use a synthetic fiber suitably from the high corrosion resistance. In this case, there are many types of woven fabrics and non-woven fabrics in thickness, strength, porosity, price, etc., and these may be appropriately selected according to the use situation and design.

  Moreover, in the opening part 10, the edge parts of the some synthetic resin planar member 3 can be directly connected without interrupting | blocking with the water-permeable sheet 2, and also in this connection part, it is equivalent to the single planar drainage material 1 The amount of drainage of the water-permeable sheet 2 is not reduced when a plurality of sheets are used in a wide area without gaps, and the extended portion 20 of the water-permeable sheet 2 is placed on the water-permeable sheet 2 of the connection partner. By lap joining, infiltration of earth and sand into the connecting portion can be completely prevented.

Moreover, while providing the opening part 10 in two adjacent sides of the water-permeable sheet 2, the water-permeable sheet 2 is extended from at least one of the surface side and the back surface side of each opening part 10, and thereby a horizontal and horizontal grid-like connection is achieved. It becomes possible.
Furthermore, by providing the openings 10 on the two opposite sides of the water permeable sheet 2 and extending the water permeable sheet 2 from at least one of the front surface side and the back surface side of each opening 10, a linear connection such as a horizontal arrangement can be achieved. It becomes possible.

Moreover, while extending the water-permeable sheet 2 from the surface side in one opening part 10 and extending the water-permeable sheet 2 from the back surface side in the other opening part 10, it is extended by the planar drainage material to connect. The water permeable sheet 2 can be bonded to the front and back surfaces of the connection partner.
And by extending the water-permeable sheet 2 from the front and back both sides with the opening part 10 of one side, the extended water-permeable sheet 2 can be joined to the surface and back surface of a connection other party.

Moreover, by providing a through-hole at the bottom of the concave portion and / or the top of the convex portion of the synthetic resin planar member 3, the water passage state is qualitatively made, and the amount of water inside the planar drainage material is more equalized.
Moreover, by making the synthetic resin sheet-like member 3 into a long belt-like body, the amount of wastewater treatment is increased, and connection work in the long direction is reduced.

  Further, by forming the synthetic resin planar member 3 with a polyolefin resin as a main component, the necessary strength and flexibility can be maintained for a long time without being corroded, and the problem of environmental pollution can be avoided. Moreover, if the water-permeable sheet 2 is a woven fabric or a non-woven fabric, the required water permeability level and strength can be easily selected depending on these grades.

In addition, the water-permeable sheet 2 made of woven fabric is disposed on one side of the synthetic resin planar member 3, and the water-permeable sheet 2 made of non-woven fabric is disposed on the other side, and these water-permeable sheets 2 are joined. Depending on the situation of use, the characteristics of each woven fabric and non-woven fabric can be utilized.
Furthermore, by forming the woven or non-woven fabric of the water-permeable sheet 2 with synthetic resin fibers, the water-permeable sheet 2 can be maintained for a long period of time with the necessary strength and flexibility without being corroded. In addition, the range of material selection is greatly expanded.

3 to 5 show second to fourth embodiments of the planar drainage material 1 of the present invention, respectively.
In the second to fourth embodiments, as in the first embodiment, the substantially square synthetic resin surface member 3 having continuous voids by forming irregularities on the surface, and the synthetic resin surface shape. A water-permeable sheet 2 that covers the member 3 is provided.
In the second embodiment shown in FIG. 3, openings 10 are provided on two adjacent sides of the water-permeable sheet 2, and the water-permeable sheet 2 is extended from the surface side at one opening 10 to form the extended part 20. In addition, the permeable sheet 2 is extended from the back surface side at the other opening 10 to form the extended portion 20.

  Further, in the third embodiment shown in FIG. 4, openings 10 are provided on two opposite sides of the water-permeable sheet 2, and the water-permeable sheet 2 is extended from the surface side at one opening 10 to form the extended part 20. At the same time, the water permeable sheet 2 is extended from the back surface side at the other opening 10 to form the extended portion 20.

Moreover, the 4th Example shown in FIG. 5 is the opening part 10 of 1 side, and extends the water permeable sheet 2 from front and back both surfaces, and forms the extension part 20. As shown in FIG.
An opening 10 can also be formed on the left side of the figure. In this case, the extended portion 20 of the water permeable sheet 2 is not necessarily provided in the opening 10 on the left side.

  In the case of the planar drainage material 1 of the present invention, the extending portion 20 made of the water permeable sheet 2 can be provided on the front side, the back side, or both sides of each side as required, but all of the design is appropriately performed This also applies to performance such as water permeability, water flow, and durability.

Next, FIG. 6 shows a fifth embodiment of the planar drainage material 1 of the present invention.
Similarly to the first to fourth embodiments, the fifth embodiment is composed of the synthetic resin sheet-like member 3 and the water-permeable sheet 2, and the sheet drainage material 1 is formed of a long band-like body.
And this planar drainage material 1 provides the opening part 10 in two elongate sides of the water-permeable sheet 2, the water-permeable sheet 2 is extended from both front and back in one opening part 10, and the planar drainage material 1 The long sides are connected side by side.
In this case, instead of forming the two extended portions 20 with one opening 10, the water-permeable sheet 2 is extended from the front surface side, and the water-permeable sheet 2 is extended from the back surface side with the other opening portion 10. You can also

Moreover, in the planar drainage material 1 of the present embodiment, the joining means between the water permeable sheet 2 and the synthetic resin planar member 3 includes adhesion, adhesion, welding, screwing, staple fixing, and the like.
And the joining of the extension part 20 and the water-permeable sheet 2 adjacent to each other may be simply overlapped, or a joining means similar to the above may be adopted.
These are appropriately determined according to the production design and usage of the planar drainage material 1.

  As mentioned above, although the planar drainage material of the present invention has been described based on the embodiments thereof, the present invention is not limited to the configurations described in the above embodiments, and the configurations thereof are appropriately set within the scope not departing from the gist thereof. Can be changed.

  The surface drainage material of the present invention is not limited to mountains and urban areas, such as flat surfaces such as built-up houses for sale in condominiums, slopes such as rooftop gardens, vertical surfaces such as retaining walls, etc. Can be suitably used.

BRIEF DESCRIPTION OF THE DRAWINGS The 1st Example of the planar drainage material of this invention is shown, (a) is the perspective view which notched part, (b) is the top view which notched part, (c) is sectional drawing. The planar drainage material of the same Example is shown, (a) is a front view, (b) is the sectional view on the AA line of (a), (c) is the sectional view on the BB line of (a). It is a perspective view which shows 2nd Example of the planar drainage material of this invention. It is a perspective view which shows 3rd Example of the planar drainage material of this invention. It is a perspective view which shows 4th Example of the planar drainage material of this invention. It is a top view which shows 5th Example of the planar drainage material of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Planar drainage material 10 Opening part 2 Permeable sheet 20 Extension part 3 Synthetic-resin planar member 30 Through-hole 31 Concave part of synthetic-resin planar member 32 Convex part of synthetic-resin planar member

Claims (11)

  In a planar drainage material comprising a substantially rectangular synthetic resin sheet-like member having continuous voids by forming irregularities on the surface, and a water-permeable sheet covering the synthetic resin sheet-like member, any of the water-permeable sheets A planar drainage material characterized in that an opening is provided on the side of the opening, and a water-permeable sheet is extended outwardly from at least one of the front and back sides of the opening.   The planar drainage material according to claim 1, wherein openings are provided on two adjacent sides of the water permeable sheet, and the water permeable sheet is extended from at least one of a front surface side and a back surface side of each opening portion.   The planar drainage material according to claim 1, wherein openings are provided on two opposing sides of the water permeable sheet, and the water permeable sheet is extended from at least one of a front surface side and a back surface side of each opening portion.   The planar drainage material according to claim 2 or 3, wherein the water permeable sheet is extended from the front surface side at one opening, and the water permeable sheet is extended from the back surface side at the other opening.   The planar drainage material according to claim 1, 2 or 3, wherein a water-permeable sheet is extended from both front and back sides at one side opening.   The planar drainage material according to claim 1, 2, 3, 4 or 5, wherein a through-hole is provided in the bottom of the concave portion and / or the top of the convex portion of the synthetic resin planar member.   The planar drainage material according to claim 1, 2, 3, 4, 5 or 6, wherein the synthetic resin planar member is a long strip-shaped body.   The planar drainage material according to claim 1, 2, 3, 4, 5, 6 or 7, wherein the synthetic resin planar member is formed with a polyolefin resin as a main component.   The planar drainage material according to claim 1, 2, 3, 4, 5, 6, 7 or 8, wherein the water-permeable sheet is formed of a woven fabric or a non-woven fabric.   2. A water permeable sheet made of woven fabric is arranged on one side of the surface member made of synthetic resin, and a water permeable sheet made of non-woven fabric is arranged on the other side, and these water permeable sheets are joined. The planar drainage material according to 2, 3, 4, 5, 6, 7, 8, or 9.   The planar drainage material according to claim 9 or 10, wherein the woven or non-woven fabric of the water permeable sheet is formed of synthetic resin fibers.

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