九州中央区に分布する火山灰質粘性土の盛土材料としての工学的特性(<小特集>西日本地域の地盤工学的話題ならびに環境への取り組み)

概要

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Naka-Kyushu crossing Road from Kumamoto to Saeki city has been constructed in the middle part of Kyushu Island. The volcanic ash clayey soils with various engineering futures, whose origin is in Mt Aso, are widely distributed in this consstruction site. The effective use of the volcanic ash soils produced in the road construction were planned as an embankment geo-materials. However, in the cases that only the volcanic ash clayey soils are used without any soil improvement, it was difficult to keep the trafficability of the embankments requested in the constructions. Concerning such conditions, the stabilization by using caustic lime is considered in this site. In this study, some kinds of in-situ tests were conducted in order to clarify the proper mixing ratio of the caustic lime with four different types of volcanic ash clayey soils to keep the trafficability
社団法人地盤工学会の論文
2005-06-01