Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
EXCAVATION METHOD OF BURYING HOLE FOR GROUND ANCHOR
To provide an excavation method of a burying hole for a ground anchor which can securely bury an anchorage body of a ground anchor in a bearing layer.SOLUTION: When excavating a burying hole for a ground anchor in a bearing layer G2 of a ground in which a structure is constructed using a double pipe excavation type excavating machine 10 comprising an excavation casing 11 and an inner rod 12, a double pipe excavation is performed to a predetermined depth, only the inner rod 12 is made to penetrate into the ground, and an impact pressure, a rotation pressure and a feeding pressure in penetration are measured. The burying hole for the ground anchor is excavated while a tip of the inner rod 12 is being determined whether or not reaching the inside of the bearing layer G2 on the basis of an amount of an excavation energy calculated from the measured impact pressure, rotation pressure and feeding pressure.SELECTED DRAWING: Figure 1
【課題】地盤アンカーの定着体を、支持層内に確実に埋設することのできる地盤アンカー埋設孔の削孔方法を提供する。【解決手段】削孔ケーシング11とインナーロッド12とを備えた二重管削孔方式削孔機10を用いて、構造物が構築される地盤の支持層G2に地盤アンカーを埋設するための孔を削孔する際に、所定の深度まで二重管削孔を行った後、インナーロッド12のみを地盤中に貫入させて貫入時の打撃圧、回転圧、及び、給進圧を計測するとともに、計測された打撃圧、回転圧、及び、給進圧から算出される削孔エネルギーの大きさに基づいて、インナーロッド12の先端が支持層G2内に到達したか否かを判定しながら、地盤アンカー埋設孔を削孔するようにした。【選択図】図1
EXCAVATION METHOD OF BURYING HOLE FOR GROUND ANCHOR
To provide an excavation method of a burying hole for a ground anchor which can securely bury an anchorage body of a ground anchor in a bearing layer.SOLUTION: When excavating a burying hole for a ground anchor in a bearing layer G2 of a ground in which a structure is constructed using a double pipe excavation type excavating machine 10 comprising an excavation casing 11 and an inner rod 12, a double pipe excavation is performed to a predetermined depth, only the inner rod 12 is made to penetrate into the ground, and an impact pressure, a rotation pressure and a feeding pressure in penetration are measured. The burying hole for the ground anchor is excavated while a tip of the inner rod 12 is being determined whether or not reaching the inside of the bearing layer G2 on the basis of an amount of an excavation energy calculated from the measured impact pressure, rotation pressure and feeding pressure.SELECTED DRAWING: Figure 1
【課題】地盤アンカーの定着体を、支持層内に確実に埋設することのできる地盤アンカー埋設孔の削孔方法を提供する。【解決手段】削孔ケーシング11とインナーロッド12とを備えた二重管削孔方式削孔機10を用いて、構造物が構築される地盤の支持層G2に地盤アンカーを埋設するための孔を削孔する際に、所定の深度まで二重管削孔を行った後、インナーロッド12のみを地盤中に貫入させて貫入時の打撃圧、回転圧、及び、給進圧を計測するとともに、計測された打撃圧、回転圧、及び、給進圧から算出される削孔エネルギーの大きさに基づいて、インナーロッド12の先端が支持層G2内に到達したか否かを判定しながら、地盤アンカー埋設孔を削孔するようにした。【選択図】図1
EXCAVATION METHOD OF BURYING HOLE FOR GROUND ANCHOR
地盤アンカー埋設孔の削孔方法
MORI TOSHIHIRO (Autor:in) / ENDO MASAMI (Autor:in) / ARAI TSUNEO (Autor:in)
07.03.2019
Patent
Elektronische Ressource
Japanisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
BURYING DEVICE AND BURYING METHOD FOR ENVIRONMENTALLY FRIENDLY PIPE ANCHOR
Europäisches Patentamt | 2019
|