排水機能をもつ土留め材

Earth retaining material with drainage function

Abstract

PROBLEM TO BE SOLVED: To execute the work having a drainage function by overlapping a plane meshy body continued into a nearly planar shape in the longitudinal direction on at least one face of a three-dimensional meshy body continued in the longitudinal direction while many continuous filaments made of a thermoplastic resin are stuck together at intersections to form ridge sections and valley sections. SOLUTION: A planar net body 2 is stuck and overlapped on one face of a three- dimensional net body 3 to form an earth retaining material 1 having a drainage function. Many continuous filaments irregularly bent and stuck together to form the plane of the planar net body 2, and is stuck to the apexes of the ridge sections of the three- dimensional net body 3. Many continuous filaments are irregularly bent and stuck together to form the ridge sections and valley sections of the three-dimensional net body 3. After this earth retaining material 1 is installed, fine sediment flows out to the outside together with water from the plane upper net body 2 through the three- dimensional net body 3. Sand and gravel are moved at the same time and are captured by the planar net body 2, and those passing through meshes are captured by the three- dimensional net body 3. Water channels are formed between the sand and gravel, and the work having a drainage function can be executed.
(57)【要約】 【課題】 シガラ工の土留め材に使用する立体網状構造 物の排水機能を高め山斜面、高架道路、高架鉄道の土手 法面等の崩壊をふせぐ。 【解決手段】 熱可塑性樹脂の連続線条の多数が相互に その交点で接着しつつ不規則なループをなして山部と谷 部を形成しながら所定の幅と厚さをもつて長さ方向に連 続する立体網状体の少なくとも一方の面に、熱可塑性樹 脂の連続線条の多数が相互にその交点で接着しつつ不規 則なループをなして所定の幅をもって長さ方向にほぼ平 面状に連続する平面網状体が重ね合わされていることを 特徴とする排水機能をもつ土留め材である。地下水とと もに流出してくる砂礫は網状体の網目に止められ地中に 砂礫群となって水路を形成し水のみを流出する。

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Cited By (6)

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    JP-2002220776-AAugust 09, 2002Daiwabo Co Ltd, Daiwabo Poytech Kk, ダイワボウポリテック株式会社, 大和紡績株式会社Electroconductive net
    JP-2008144440-AJune 26, 2008Mitsubishi Kagaku Sanshi Corp, 三菱化学産資株式会社土留め構造体及び土留め施工方法
    JP-2008542583-ANovember 27, 2008オフィシネ マッカフェリイ ソシエタ ペル アチオニ軽量保護要素およびマットレス・タイプのフィルタ
    JP-4571318-B2October 27, 2010ダイワボウホールディングス株式会社, ダイワボウポリテック株式会社導電性網状体
    US-2012223004-A1September 06, 2012Officine Maccaferri S.P.A.Lightweight protection element and filter of the mattress type
    US-8979428-B2March 17, 2015Officine Maccaferri S.P.A.Lightweight protection element and filter of the mattress type