Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
CONSTRUCTION METHOD OF CONTINUOUS SOIL CEMENT UNDERGROUND WALL
PROBLEM TO BE SOLVED: To provide a construction method of a continuous soil cement underground wall that facilitates construction even in a loamy layer or other types of viscous ground or at a great depth, eliminates a need on a step for carrying out surplus soil from a preceding excavation hole and therefore reduces the amount of surplus soil carried out, and generates almost no surplus soil classified as an industrial waste.SOLUTION: A construction method of a continuous soil cement underground wall is for constructing an integrated and continuous soil cement wall body, and includes: a preceding excavation step in which a natural ground is excavated with a single-spindle kneading auger machine and cement milk is discharged from a tip of the kneading auger machine, for building soil cement columnar bodies leaving an interval; and a following excavation step in which a shaft hole at an element edge is wrapped around the excavated hole excavated in the preceding excavation step, using a multiple-spindle kneading auger machine. In the preceding excavation step, cement, cement milk and excavated soil are kneaded at a W/C (water/cement ratio) higher than in a conventional case. In the following excavation step, the water/cement ratio of the cement, the cement milk and the excavated soil kneaded is determined taking into consideration the excess water amount from the preceding excavation step.SELECTED DRAWING: Figure 1
【課題】ローム層等の粘性地盤や深度のある施工であっても施工を容易とし、また、先行掘削孔の残土の排出という所謂空堀の工程を設けることなく、残土の排出量を減らすことができ、産業廃棄物残土もほとんど発生させずにすむソイルセメント連続地中壁の施工法を提供する。【解決手段】先行掘削として１軸の混練オーガー機で原地盤を削孔し、その先端よりセメントミルクを吐出してソイルセメントの柱体を間隔を存して造り、後行掘削として多軸の混練オーガー機でエレメント端の軸孔を前記先行削孔の掘削孔にラップさせて連続一体のソイルセメント壁体を造成するソイルセメント連続地中壁の施工法において、先行掘削でのセメントとセメントミルクと掘削土の混練は従来よりもＷ／Ｃ（水／セメント比）を高くし、後行掘削でのセメントとセメントミルクと掘削土の混練はこの先行掘削での余剰水量を考慮して決定する。【選択図】 図１
CONSTRUCTION METHOD OF CONTINUOUS SOIL CEMENT UNDERGROUND WALL
PROBLEM TO BE SOLVED: To provide a construction method of a continuous soil cement underground wall that facilitates construction even in a loamy layer or other types of viscous ground or at a great depth, eliminates a need on a step for carrying out surplus soil from a preceding excavation hole and therefore reduces the amount of surplus soil carried out, and generates almost no surplus soil classified as an industrial waste.SOLUTION: A construction method of a continuous soil cement underground wall is for constructing an integrated and continuous soil cement wall body, and includes: a preceding excavation step in which a natural ground is excavated with a single-spindle kneading auger machine and cement milk is discharged from a tip of the kneading auger machine, for building soil cement columnar bodies leaving an interval; and a following excavation step in which a shaft hole at an element edge is wrapped around the excavated hole excavated in the preceding excavation step, using a multiple-spindle kneading auger machine. In the preceding excavation step, cement, cement milk and excavated soil are kneaded at a W/C (water/cement ratio) higher than in a conventional case. In the following excavation step, the water/cement ratio of the cement, the cement milk and the excavated soil kneaded is determined taking into consideration the excess water amount from the preceding excavation step.SELECTED DRAWING: Figure 1
【課題】ローム層等の粘性地盤や深度のある施工であっても施工を容易とし、また、先行掘削孔の残土の排出という所謂空堀の工程を設けることなく、残土の排出量を減らすことができ、産業廃棄物残土もほとんど発生させずにすむソイルセメント連続地中壁の施工法を提供する。【解決手段】先行掘削として１軸の混練オーガー機で原地盤を削孔し、その先端よりセメントミルクを吐出してソイルセメントの柱体を間隔を存して造り、後行掘削として多軸の混練オーガー機でエレメント端の軸孔を前記先行削孔の掘削孔にラップさせて連続一体のソイルセメント壁体を造成するソイルセメント連続地中壁の施工法において、先行掘削でのセメントとセメントミルクと掘削土の混練は従来よりもＷ／Ｃ（水／セメント比）を高くし、後行掘削でのセメントとセメントミルクと掘削土の混練はこの先行掘削での余剰水量を考慮して決定する。【選択図】 図１
CONSTRUCTION METHOD OF CONTINUOUS SOIL CEMENT UNDERGROUND WALL
ソイルセメント連続地中壁の施工法
ONODERA HIDETAKA (Autor:in)
23.03.2017
Patent
Elektronische Ressource
Japanisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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