A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
To provide a ground reinforcement method that can reduce an amount of excavated soil and crushed stone while maintaining a high subsidence suppression effect.SOLUTION: A ground reinforcement method comprises: a root excavation process S1 of excavating the ground to construct a root excavation surface B with a surface shape corresponding to a bottom shape of a building's foundation A; a primary laying process S2 of laying base granular material 1 on the root excavation surface B and compacting to construct a primary granular material layer C; a placing process S3 of disposing a plurality of strip-shaped reinforcing sheets 2 in parallel on the primary granular material layer C so that they partially overlap in a width direction; a temporary fixing process S4 of anchoring both longitudinal ends of the reinforcing sheets 2 to the ground to construct a temporary fixed end E; a secondary laying process S5 of laying the base granular material 1 on the reinforcing sheets 2 and compacting to construct a secondary granular material layer D; and a fixing process S6 of pouring concrete onto the temporary fixed end E to fix it to the ground. In the secondary laying process S5, tension is applied to at least one of the plurality of reinforcing sheets 2 by the load of the base granular materials 1 laid in recesses of the reinforcing sheets 2.SELECTED DRAWING: Figure 5
【課題】高い沈下抑制効果を維持しつつ掘削土量と砕石量を削減可能な地盤補強工法を提供する。【解決手段】本発明の地盤補強工法は、地盤を掘削して、建物の基礎Ａの底面形状に対応する表面形状の根切り面Ｂを構築する、根切り工程Ｓ１と、根切り面Ｂ上に基盤粒材１を敷込んで転圧し、一次粒材層Ｃを構築する、一次敷込み工程Ｓ２と、一次粒材層Ｃ上に、帯状の複数の補強シート２を、幅方向に一部重なるように並列配置する、敷設工程Ｓ３と、補強シート２の長手方向両端部を地盤にアンカー留めして仮固定端部Ｅを構築する、仮固定工程Ｓ４と、補強シート２上に基盤粒材１を敷込んで転圧し、二次粒材層Ｄを構築する、二次敷込み工程Ｓ５と、仮固定端部Ｅ上にコンクリートを打設して地盤に固定する、固定工程Ｓ６と、を備え、二次敷込み工程Ｓ５において、補強シート２の凹部に敷込んだ基盤粒材１の荷重によって、複数の補強シート２の少なくとも１つに緊張力を付与することを特徴とする。【選択図】図５
To provide a ground reinforcement method that can reduce an amount of excavated soil and crushed stone while maintaining a high subsidence suppression effect.SOLUTION: A ground reinforcement method comprises: a root excavation process S1 of excavating the ground to construct a root excavation surface B with a surface shape corresponding to a bottom shape of a building's foundation A; a primary laying process S2 of laying base granular material 1 on the root excavation surface B and compacting to construct a primary granular material layer C; a placing process S3 of disposing a plurality of strip-shaped reinforcing sheets 2 in parallel on the primary granular material layer C so that they partially overlap in a width direction; a temporary fixing process S4 of anchoring both longitudinal ends of the reinforcing sheets 2 to the ground to construct a temporary fixed end E; a secondary laying process S5 of laying the base granular material 1 on the reinforcing sheets 2 and compacting to construct a secondary granular material layer D; and a fixing process S6 of pouring concrete onto the temporary fixed end E to fix it to the ground. In the secondary laying process S5, tension is applied to at least one of the plurality of reinforcing sheets 2 by the load of the base granular materials 1 laid in recesses of the reinforcing sheets 2.SELECTED DRAWING: Figure 5
【課題】高い沈下抑制効果を維持しつつ掘削土量と砕石量を削減可能な地盤補強工法を提供する。【解決手段】本発明の地盤補強工法は、地盤を掘削して、建物の基礎Ａの底面形状に対応する表面形状の根切り面Ｂを構築する、根切り工程Ｓ１と、根切り面Ｂ上に基盤粒材１を敷込んで転圧し、一次粒材層Ｃを構築する、一次敷込み工程Ｓ２と、一次粒材層Ｃ上に、帯状の複数の補強シート２を、幅方向に一部重なるように並列配置する、敷設工程Ｓ３と、補強シート２の長手方向両端部を地盤にアンカー留めして仮固定端部Ｅを構築する、仮固定工程Ｓ４と、補強シート２上に基盤粒材１を敷込んで転圧し、二次粒材層Ｄを構築する、二次敷込み工程Ｓ５と、仮固定端部Ｅ上にコンクリートを打設して地盤に固定する、固定工程Ｓ６と、を備え、二次敷込み工程Ｓ５において、補強シート２の凹部に敷込んだ基盤粒材１の荷重によって、複数の補強シート２の少なくとも１つに緊張力を付与することを特徴とする。【選択図】図５
GROUND REINFORCEMENT METHOD
地盤補強工法
MIO KOTARO (author)
2024-10-31
Patent
Electronic Resource
Japanese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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