Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
HORIZONTAL DRAIN HOLE INSTALLATION METHOD AND DEVICE THEREOF
PROBLEM TO BE SOLVED: To provide a horizontal drain hole installation method and an installation device capable of easily installing a drain hole mainly used for a liquefaction countermeasure of the ground, toward the horizontal direction without open-cutting the ground surface.SOLUTION: A drain hole 9 is formed by communicating-opening both end parts within both shafts 1 and 2 by pushing out while successively connecting cylindrical propulsion pipes 7a and 7b toward an arrival side shaft 2 from a pushing-out side shaft 1 by using a propeller, and when making water in the ground A flow in the drain hole 9 via a water permeable part 10 of the propulsion pipe 7b, water impermeable impervious cylinder short pipes 8a, 8a, etc. inserted inside the propulsion pipes 7a and 7b are pushed out together with the propulsion pipes 7a and 7b while successively connecting, and an impervious cylinder 8 composed of the impervious cylinder short pipes 8a, 8a, etc. is installed inside the propulsion pipe 7b, and while preventing flooding to the inside by shielding the water permeable part 10 by the impervious cylinder 8, the drain hole 9 is formed, and the impervious cylinder short pipes 8a, 8a, etc. are extracted after forming the drain hole 9.
【課題】主に地盤の液状化対策に用いられるドレーン孔を、地表を開削することなく水平方向に向けて容易に設置できるようにする水平ドレーン孔設置方法、及び設置装置を提供する。【解決手段】推進機を使用して押出し側立坑１より到達側立坑２に向けて円筒状の推進管７ａ，７ｂを順次連結しつつ押し出すことにより両端部を両立坑１，２に連通開口させたドレーン孔９を形成し、推進管７ｂの透水部１０を通じて地盤Ａ中の水をドレーン孔９内に流入させるようにするに際し、推進管７ａ，７ｂの内側に挿入された不透水性の遮水筒用短管８ａ，８ａ...を順次連結しつつ推進管７ａ，７ｂとともに押し出し、推進管７ｂの内側に遮水筒用短管８ａ，８ａ...からなる遮水筒８を設置し、遮水筒８で透水部１０を遮蔽して内部への浸水を防止しつつドレーン孔９を形成し、ドレーン孔９形成後に遮水筒用短管８ａ，８ａ...を抜き取る。【選択図】図６
HORIZONTAL DRAIN HOLE INSTALLATION METHOD AND DEVICE THEREOF
PROBLEM TO BE SOLVED: To provide a horizontal drain hole installation method and an installation device capable of easily installing a drain hole mainly used for a liquefaction countermeasure of the ground, toward the horizontal direction without open-cutting the ground surface.SOLUTION: A drain hole 9 is formed by communicating-opening both end parts within both shafts 1 and 2 by pushing out while successively connecting cylindrical propulsion pipes 7a and 7b toward an arrival side shaft 2 from a pushing-out side shaft 1 by using a propeller, and when making water in the ground A flow in the drain hole 9 via a water permeable part 10 of the propulsion pipe 7b, water impermeable impervious cylinder short pipes 8a, 8a, etc. inserted inside the propulsion pipes 7a and 7b are pushed out together with the propulsion pipes 7a and 7b while successively connecting, and an impervious cylinder 8 composed of the impervious cylinder short pipes 8a, 8a, etc. is installed inside the propulsion pipe 7b, and while preventing flooding to the inside by shielding the water permeable part 10 by the impervious cylinder 8, the drain hole 9 is formed, and the impervious cylinder short pipes 8a, 8a, etc. are extracted after forming the drain hole 9.
【課題】主に地盤の液状化対策に用いられるドレーン孔を、地表を開削することなく水平方向に向けて容易に設置できるようにする水平ドレーン孔設置方法、及び設置装置を提供する。【解決手段】推進機を使用して押出し側立坑１より到達側立坑２に向けて円筒状の推進管７ａ，７ｂを順次連結しつつ押し出すことにより両端部を両立坑１，２に連通開口させたドレーン孔９を形成し、推進管７ｂの透水部１０を通じて地盤Ａ中の水をドレーン孔９内に流入させるようにするに際し、推進管７ａ，７ｂの内側に挿入された不透水性の遮水筒用短管８ａ，８ａ...を順次連結しつつ推進管７ａ，７ｂとともに押し出し、推進管７ｂの内側に遮水筒用短管８ａ，８ａ...からなる遮水筒８を設置し、遮水筒８で透水部１０を遮蔽して内部への浸水を防止しつつドレーン孔９を形成し、ドレーン孔９形成後に遮水筒用短管８ａ，８ａ...を抜き取る。【選択図】図６
HORIZONTAL DRAIN HOLE INSTALLATION METHOD AND DEVICE THEREOF
水平ドレーン孔設置方法及びその装置
HAMANO MAMORU (Autor:in) / SAITO MAMORU (Autor:in) / AKIBA TOSHIYASU (Autor:in)
08.10.2015
Patent
Elektronische Ressource
Japanisch
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