KR840007924A - Elongated Bendable Drainage Mat - Google Patents

Abstract

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Description

Elongated Bendable Drainage Mat

Since this is an open matter, no full text was included.

1 is a partial cutaway perspective view of the drainage mat of the present invention.

2 is a perspective view of a perforated layer comprising protrusions similar to rods useful as three-dimensional cores of the drain mat of the present invention.

3 is a cross-sectional view of the drainage mat.

4 is a cross-sectional view showing a highway structure in which the drainage mat of the present invention is installed close to a shoulder joint.

Claims (23)

Proximity buffer Bt is 0.2sec 2.0sec ^-1 to ^-1, with a dynamic permeability after applying a load of 10 ⁶ at least 10 ^-4 cm / sec permeability fabric which is configured by covering most of the surface of the three-dimensional method peun OY Drainage mat. An elongate and bendable drainage mat having a polymeric core consisting of a plurality of generally rigid fingers protruding from one side of the layer and a rectangular cross section coated with a permeable fabric adhered to the end of the fingers to prevent them from being severely collapsed. Dynamic permeability coefficients of at least 10 ^-4 cm / sec after a polymeric core and a property consisting of a large number of fingers protruding from one side of the layer under load of 0.2 sec ^-1 to 2.0 sec ^-1 , 10 ⁶ A stretchable and bendable drainage mat having a rectangular cross section coated with a pitcher. 4. The mat of claim 3 wherein the mat is adhered to a plurality of fingertips so that the fabric does not collapse badly. The mat according to claim 2 or 4, wherein the mat is concave about any bending axis that is parallel to the plane of the layer or the surface of the drainage mat near the tip of the finger, or located about 0 ° to 180 ° from the extension axis. Can be bent easily because it can be wound. The mat of claim 1, wherein the surface of the drainage mat close to the tip of the finger can be rolled 180 ° with a bending axis having a diameter of about 2.54 cm or less. 7. The mat of claim 6 wherein the fingers value a nominal diameter wherein the ratio of finger length to nominal diameter is from 1: 1 to 8: 1. 8. The mat of claim 7, wherein the fingers have an average center distance between the fingers with a ratio of mean center distance to nominal diameter of 2: 1 to 20: 1. The mat of claim 8, wherein the layer is perforated. 10. The mat of claim 9 wherein the finger is hollow. The mat of claim 10 wherein the fingers are cylindrical. 12. The mat according to claims 2 to 11, wherein the length of the fingers is 1.3 to 3.8 cm, the nominal diameter is 0.4 to 1.1 cm, the average center distance is 2.3 to 3.2 cm and the length of the rectangular cross section is 15 cm to 3.6 cm. 13. The mat of any of claims 2 to 12 wherein the polymeric core consists of a polymer selected from polyethylene or polypropylene groups and the fabric is a polymer selected from polypropylene, polyamide, polyester and polyacrylic or glass fiber groups. Being composed. 14. The mat of any of claims 2 to 13 wherein the fabric is glued to the ends by a hot melt adhesive. In highway structures formed of pavement on subbase, adjacent shoulder and roadbed drainage structures, polymer cores and perforated fabrics having a rectangular cross section composed of a large number of generally rigid fingers protruding from one side of the layer are severely A roadbed drainage structure consisting of a stretchable and bendable polymer mat that is sufficiently bonded to multiple fingertips to prevent collapse. According to claim 15 of the highway structure, permeability fabric covering is a dynamic permeability after applying a load of 0.2sec 2.0sec ^{-1 -1} to buffer Bt proximity with 10 ⁶ of one of at least 10 ^-4 cm / sec. The highway structure of claim 15 or 16, wherein the purchase mat is about 1.0 inches or less, which is positioned parallel to the plane of the layer or the surface of the drainage mat near the tip of the finger or between 0 ° and 180 ° from the elongation axis. It can be easily bent because it can be wound concave about any bending axis having a diameter of. The highway structure according to claim 15 or 17, wherein the purchase mat is 1.3 to 3.8 cm in length, nominally 0.4 to 1.1 cm, and has a cylindrical finger and a porous layer having a mean center distance of 0.8 to 3.8 cm and a polymer composed of polyethylene or polypropylene. Consisting of fabrics of cores, polypropylene, polyesters, polyamides and polymers selected from polyacrylic or glass fiber groups. An artificial turf assembly comprising a drainage mat consisting of an artificial turf layer and a polymeric core consisting of a plurality of generally rigid fingers protruding from one side of the layer. 20. The assembly of claim 19 wherein the drain mat is coated with a core permeable fabric. 21. The assembly of claim 19 or 20, wherein the assembly comprises a resilient mat having a plurality of holes perforated in the artificial turf and drain mat. Consisting of placing a sleeper and rail over a ballast supported horizontally with at least part of the ballast drainage mats having a rectangular cross section covered with a plurality of substantially rigid polymeric cores and a permeable fabric projecting from one side of the layer Railway structure. 23. The railroad structure of claim 22 wherein the fabric's properties are between 0.2 and 2.0 sec ⁻¹ and the dynamic permeability coefficient after load of 10 ⁶ is at least 10 ⁻⁴ cm / sec. ※ Note: The disclosure is based on the initial application.