三郡変成岩風化土の工学的性質とその諸問題(<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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The Sangun metamorphic rock which is mainly distributed in Yamaguchi Prefecture is regarded as one of local problematic soils. It has recently utilized as filling materials. The weathered Sangun metamorphic rocks are classified into the pelitic schist, the basic schist, the serpentinite, etc. They have a variety of joint and schistosity essentially. According to our field survey, slope failure frequently occurred along an existing joint surface during rainfall. Therefore the joint and schistosity are important factors in considering slope stability. It is also necessary to clarify its material property as related to various earthworks. This paper reviews physical, chemical and mineral compositions, consolidation and shear behaviors of disturbed and undisturbed samples, and compaction and CBR characteristics of the weathered Sangun metamorphic rocks.
社団法人地盤工学会の論文
2005-06-01