A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
UNDERGROUND SECTION WIDENING METHOD AND EARTH RETAINING TOOL
PROBLEM TO BE SOLVED: To achieve improvement in both safety and workability when constructing a widened section during excavation.SOLUTION: A method to construct a widened section while excavating an underground section executes: installation of an earth retaining wall and excavation of the object ground until an excavation depth reaches a planned widening place (a); excavation of an earth retained section which is prepared by earth retaining at the planned widening place using an earth retaining tool with one end thereof rotatably connected to an immobile point and the other end thereof pressed into the ground (b); and construction of a widening section through the earth retaining and excavation of the planned widening place by joining a new earth retaining tool to a back of the previous earth retaining tool (c).SELECTED DRAWING: Figure 6I
【課題】掘削途中に拡幅部を設ける際に、安全性および施工性の向上の両立が可能とすること。【解決手段】地下部分の掘削途中から拡幅部を設けるための方法であって、（ａ）拡幅予定箇所に達するまで、土留壁の構築および掘削側地盤の掘削を行い、（ｂ）一端を不動点に回動自在に連結した土留具を、前記拡幅予定箇所に押し出して土留してから、該土留部分を掘削し、（ｃ）前記土留具の後方に、新たな土留具を継ぎ足しながら、前記拡幅予定箇所の土留および掘削を進めて、拡幅部を形成することを特徴とする。【選択図】図６Ｉ
UNDERGROUND SECTION WIDENING METHOD AND EARTH RETAINING TOOL
PROBLEM TO BE SOLVED: To achieve improvement in both safety and workability when constructing a widened section during excavation.SOLUTION: A method to construct a widened section while excavating an underground section executes: installation of an earth retaining wall and excavation of the object ground until an excavation depth reaches a planned widening place (a); excavation of an earth retained section which is prepared by earth retaining at the planned widening place using an earth retaining tool with one end thereof rotatably connected to an immobile point and the other end thereof pressed into the ground (b); and construction of a widening section through the earth retaining and excavation of the planned widening place by joining a new earth retaining tool to a back of the previous earth retaining tool (c).SELECTED DRAWING: Figure 6I
【課題】掘削途中に拡幅部を設ける際に、安全性および施工性の向上の両立が可能とすること。【解決手段】地下部分の掘削途中から拡幅部を設けるための方法であって、（ａ）拡幅予定箇所に達するまで、土留壁の構築および掘削側地盤の掘削を行い、（ｂ）一端を不動点に回動自在に連結した土留具を、前記拡幅予定箇所に押し出して土留してから、該土留部分を掘削し、（ｃ）前記土留具の後方に、新たな土留具を継ぎ足しながら、前記拡幅予定箇所の土留および掘削を進めて、拡幅部を形成することを特徴とする。【選択図】図６Ｉ
UNDERGROUND SECTION WIDENING METHOD AND EARTH RETAINING TOOL
地下部分の拡幅方法および土留具
AIURA HIROKI (author) / AMANO KENJI (author)
2016-05-23
Patent
Electronic Resource
Japanese
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