METHOD FOR IMPROVING SOFT GROUND

PURPOSE:To effectively improve soft ground composed of sandy soil with excellent improving effect by using a simplified apparatus. CONSTITUTION:A blast furnace granulated slag 11 is uniformly placed on soft ground and hollow tubes 2 are integrally attached by extending them to the lower end of an H-...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: OMAE TATSURO, YASUDO KENICHI, MATSUOKA JUNICHI
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:PURPOSE:To effectively improve soft ground composed of sandy soil with excellent improving effect by using a simplified apparatus. CONSTITUTION:A blast furnace granulated slag 11 is uniformly placed on soft ground and hollow tubes 2 are integrally attached by extending them to the lower end of an H-steel 1 along the longitudinal direction of the steel 1. An auxiliary slurry S composed mainly of granulated slag fine powder and an alkali stimulator is discharged from the tips of the tubes 2, and the steel 1 is penetrated into the subject ground 11 while vibrating it vertically to increase the bearing force of the ground. A mixture composed of granulated slag and its fine powder and an alkali stimulator is uniformly placed on the soft ground, or water may be discharged from the tubes 2 while penetrating the steel 1 being vibrated into the subject ground.