GROUND IMPROVEMENT METHOD, AND MANUFACTURING METHOD OF PRECAST SUBGRADE

PROBLEM TO BE SOLVED: To provide a ground improvement method capable of forming a subgrade having a sufficient and uniform strength at a site that includes a ground to be improved, at the same time sufficiently suppressing an impact to a surrounding environment.SOLUTION: A ground improvement method...

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Bibliographische Detailangaben
Hauptverfasser:	HIDEKAWA TAKAHIKO, ADACHI NAOTO, ASANO RISABURO, SUZUKI YASUTSUGU, SAKURAI YUICHI, HORII TAKASHI
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	ADHESIVES CHEMISTRY DYES EMBANKMENTS EXCAVATIONS FIXED CONSTRUCTIONS FOUNDATIONS HYDRAULIC ENGINEERING MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS PAINTS POLISHES SOIL SHIFTING UNDERGROUND OR UNDERWATER STRUCTURES
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a ground improvement method capable of forming a subgrade having a sufficient and uniform strength at a site that includes a ground to be improved, at the same time sufficiently suppressing an impact to a surrounding environment.SOLUTION: A ground improvement method according to the present invention includes the following steps for: (a) transporting sediment of or outside of a site that includes the ground to be solidified to a manufacturing facility of a precast subgrade; (b) manufacturing the precast subgrade containing the sediment by supplying a culture fluid for promoting metabolism of a microorganism into the sediment at the manufacturing facility of the precast subgrade; (c) transporting the precast subgrade to the site; and (d) installing the precast subgrade at site.SELECTED DRAWING: Figure 3 【課題】改良すべき地盤を含む現地に十分に均一な強度を有する地盤を形成でき且つ周囲環境への影響を十分に抑えることができる地盤改良工法を提供する。【解決手段】本発明に係る地盤改良工法は、（ａ）固化すべき対象地盤を含む現地もしくは当該現地以外の土砂をプレキャスト地盤製造設備に運搬する工程と、（ｂ）プレキャスト地盤製造設備において上記土砂に対して微生物の代謝を促進させる培養液を供給することによって上記土砂を含むプレキャスト地盤を製造する工程と、（ｃ）プレキャスト地盤を現地に運搬する工程と、（ｄ）プレキャスト地盤を現地に設置する工程とを含む。【選択図】図３