ESTIMATION METHOD OF MIXING DEFECT FACTOR IN GROUND IMPROVEMENT

To provide a method capable of estimating factors in occurence of mixing defect in ground improvement.SOLUTION: An agitation blade mechanism 1 is made to penetrate soil to be agitated as a sample with rotating, and then the agitation blade mechanism 1 is pulled out of the sample with rotating. A mas...

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Bibliographische Detailangaben
Hauptverfasser:	YAMAGUCHI AKIRA, TAKASHIMA MOTOYUKI, KIMURA FUMIHIKO, OMORI KEIJI, YAMANE YUKIHIRO, HASUKA TOMOHIRO
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	EMBANKMENTS EXCAVATIONS FIXED CONSTRUCTIONS FOUNDATIONS HYDRAULIC ENGINEERING SOIL SHIFTING UNDERGROUND OR UNDERWATER STRUCTURES
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Beschreibung
Zusammenfassung:	To provide a method capable of estimating factors in occurence of mixing defect in ground improvement.SOLUTION: An agitation blade mechanism 1 is made to penetrate soil to be agitated as a sample with rotating, and then the agitation blade mechanism 1 is pulled out of the sample with rotating. A mass of the sample sticking to the agitation blade mechanism 1 pulled out of the sample (an object sticking soil) is measured. Then, factors of corotation phenomenon is estimated by using the measurement result of the mass of the sample.SELECTED DRAWING: Figure 1 【課題】地盤改良における混合不良発生の因子を推定可能な方法を提供する。【解決手段】試料としての混合対象土に対して撹拌翼機構１が回転されながら貫入された後、当該試料から撹拌翼機構１が回転されながら引き抜かれる。試料から引き抜かれた撹拌翼機構１に付着している試料の質量（付着対象土量）が計測される。そして、試料の質量の当該計測結果が用いられて共回り現象の因子が推定される。【選択図】図１