A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
FABRICATION METHOD OF IMPROVED GROUND AND INSOLUBILIZING AGENT
To provide a soil improvement method enabling soft soil containing predetermined metal to be improved to soil having target strength, without increasing the on-site process comparing with a conventional method, and an insolubilizing agent of the metal used in the ground improvement method.SOLUTION: A method of producing an improved ground is provided, including: a mixing step of mixing a cement slurry with an original ground to obtain a mixed ground; and a solidification step of solidifying the mixed ground to obtain an improved ground, the original ground includes a metal that inhibits development of strength of the improved ground, and the cement slurry includes an insolubilizing agent of the metal that inhibits development of the strength of the improved soil, or, when the cement slurry does not include the insolubilizing agent, the insolubilizing agent is mixed in the original ground together with the cement slurry in the mixing step, and the insolubilizing agent includes NaHS. The present invention also includes an insolubilizing agent characterized in that it includes NaHS.SELECTED DRAWING: Figure 1
【課題】従来の方法と比較して現場での工程を増やすことなく、所定の金属を含有する軟弱地盤を目標とする強度まで改良し得る地盤改良方法、およびこの地盤改良方法に用いられる前記金属の不溶化剤を提供すること【解決手段】セメントスラリーを原地盤に混合して混合地盤を得る混合工程と、該混合地盤を固化して改良地盤を得る固化工程と、を含む改良地盤の製造方法であって、前記原地盤が、前記改良地盤の強度発現を阻害する金属を含み、前記セメントスラリーが、前記改良地盤の強度発現を阻害する金属の不溶化剤を含むか、あるいは前記セメントスラリーが前記不溶化剤を含まない場合には前記不溶化剤が前記混合工程において前記セメントスラリーと共に前記原地盤に混合され、前記不溶化剤が、ＮａＨＳを含むことを特徴とする改良地盤の製造方法である。また、本発明は、ＮａＨＳを含むことを特徴とする不溶化剤を含む。【選択図】図１
FABRICATION METHOD OF IMPROVED GROUND AND INSOLUBILIZING AGENT
To provide a soil improvement method enabling soft soil containing predetermined metal to be improved to soil having target strength, without increasing the on-site process comparing with a conventional method, and an insolubilizing agent of the metal used in the ground improvement method.SOLUTION: A method of producing an improved ground is provided, including: a mixing step of mixing a cement slurry with an original ground to obtain a mixed ground; and a solidification step of solidifying the mixed ground to obtain an improved ground, the original ground includes a metal that inhibits development of strength of the improved ground, and the cement slurry includes an insolubilizing agent of the metal that inhibits development of the strength of the improved soil, or, when the cement slurry does not include the insolubilizing agent, the insolubilizing agent is mixed in the original ground together with the cement slurry in the mixing step, and the insolubilizing agent includes NaHS. The present invention also includes an insolubilizing agent characterized in that it includes NaHS.SELECTED DRAWING: Figure 1
【課題】従来の方法と比較して現場での工程を増やすことなく、所定の金属を含有する軟弱地盤を目標とする強度まで改良し得る地盤改良方法、およびこの地盤改良方法に用いられる前記金属の不溶化剤を提供すること【解決手段】セメントスラリーを原地盤に混合して混合地盤を得る混合工程と、該混合地盤を固化して改良地盤を得る固化工程と、を含む改良地盤の製造方法であって、前記原地盤が、前記改良地盤の強度発現を阻害する金属を含み、前記セメントスラリーが、前記改良地盤の強度発現を阻害する金属の不溶化剤を含むか、あるいは前記セメントスラリーが前記不溶化剤を含まない場合には前記不溶化剤が前記混合工程において前記セメントスラリーと共に前記原地盤に混合され、前記不溶化剤が、ＮａＨＳを含むことを特徴とする改良地盤の製造方法である。また、本発明は、ＮａＨＳを含むことを特徴とする不溶化剤を含む。【選択図】図１
FABRICATION METHOD OF IMPROVED GROUND AND INSOLUBILIZING AGENT
改良地盤の製造方法および不溶化剤
ADACHI YUJI (author) / HONG SON NGUYEN (author) / NEGISHI ATSUNORI (author) / YAMADA MINORU (author) / KITAYAMA HIROYUKI (author)
2021-09-24
Patent
Electronic Resource
Japanese
METHOD FOR INSOLUBILIZING WASTE GYPSUM, GYPSUM COMPOSITION, AND INSOLUBILIZING AGENT
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