A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
WEAK GROUND IMPROVEMENT BODY, AND CONSTRUCTION METHOD OF WEAK GROUND IMPROVEMENT BODY
To minimize a construction depth, to realize a simple construction with a narrow space, and to reduce cost of the construction.SOLUTION: A weak ground improvement body supports a grounding end portion 2a positioned at a lateral lower end portion of an embankment 2 provided on a weak ground G and receiving deviated soil pressure, and is formed by excavating an object ground supporting the grounding end portion 2a from below and mixing/stirring a ground improvement material. The weak ground improvement body comprises: front continuous improvement walls 11 continuously extending along an extension direction X1 of the grounding end portion 2a and receiving the ground bearing a load of the embankment 2 at a rear face 11a side; and a plurality of perpendicular improvement walls 12 being perpendicular to the rear face 11a of the front continuous improvement walls 11 and partitioning in the extension direction X1 in top view. At least a part of an improved area comprising the front continuous improvement walls 11 and the perpendicular improvement walls 12 is provided at a position overlapping with the grounding end portion 2a of the embankment 2.SELECTED DRAWING: Figure 1
【課題】施工深度を最小深さにすることができ、小スペースで簡単な施工となり、施工にかかる費用を低減することができる。【解決手段】軟弱地盤Ｇ上に設けられ偏土圧を受ける盛土２の側方下端部に位置する接地端部２ａを支持し、接地端部２ａを下方から支持する対象地盤を掘削して地盤改良材を混合攪拌することで形成される軟弱地盤改良体であって、接地端部２ａの延在方向Ｘ１に沿って連続的に延び、盛土２の荷重を支持する地盤を後面１１ａ側で受ける前方連続改良壁１１と、上面視で前方連続改良壁１１の後面１１ａに直交して延在方向Ｘ１に区画する複数の直交改良壁１２と、を備え、前方連続改良壁１１と直交改良壁１２とからなる改良領域の少なくとも一部が盛土２の接地端部２ａに重なる位置に設けられた軟弱地盤改良体を提供する。【選択図】図１
WEAK GROUND IMPROVEMENT BODY, AND CONSTRUCTION METHOD OF WEAK GROUND IMPROVEMENT BODY
To minimize a construction depth, to realize a simple construction with a narrow space, and to reduce cost of the construction.SOLUTION: A weak ground improvement body supports a grounding end portion 2a positioned at a lateral lower end portion of an embankment 2 provided on a weak ground G and receiving deviated soil pressure, and is formed by excavating an object ground supporting the grounding end portion 2a from below and mixing/stirring a ground improvement material. The weak ground improvement body comprises: front continuous improvement walls 11 continuously extending along an extension direction X1 of the grounding end portion 2a and receiving the ground bearing a load of the embankment 2 at a rear face 11a side; and a plurality of perpendicular improvement walls 12 being perpendicular to the rear face 11a of the front continuous improvement walls 11 and partitioning in the extension direction X1 in top view. At least a part of an improved area comprising the front continuous improvement walls 11 and the perpendicular improvement walls 12 is provided at a position overlapping with the grounding end portion 2a of the embankment 2.SELECTED DRAWING: Figure 1
【課題】施工深度を最小深さにすることができ、小スペースで簡単な施工となり、施工にかかる費用を低減することができる。【解決手段】軟弱地盤Ｇ上に設けられ偏土圧を受ける盛土２の側方下端部に位置する接地端部２ａを支持し、接地端部２ａを下方から支持する対象地盤を掘削して地盤改良材を混合攪拌することで形成される軟弱地盤改良体であって、接地端部２ａの延在方向Ｘ１に沿って連続的に延び、盛土２の荷重を支持する地盤を後面１１ａ側で受ける前方連続改良壁１１と、上面視で前方連続改良壁１１の後面１１ａに直交して延在方向Ｘ１に区画する複数の直交改良壁１２と、を備え、前方連続改良壁１１と直交改良壁１２とからなる改良領域の少なくとも一部が盛土２の接地端部２ａに重なる位置に設けられた軟弱地盤改良体を提供する。【選択図】図１
WEAK GROUND IMPROVEMENT BODY, AND CONSTRUCTION METHOD OF WEAK GROUND IMPROVEMENT BODY
軟弱地盤改良体、および軟弱地盤改良体の施工方法
TAKEDA SHINICHI (author) / MEGURO KAZUNORI (author)
2022-06-08
Patent
Electronic Resource
Japanese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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