THE VIBRO-COMPOZER METHOD AS APPLIED TO STABILIZATION OF COHESIVE FOUNDATION SOILS
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概要
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The effect of the vibro-compozer method (sand compaction pile) for stabilizing cohesive soils was already presented by Prof. S. Murayama in his successive papers, but there still remain some unsolved problems in design and practice. In this paper, the authors, based on their experiences, have made clear some effects of the method applied to cohesive foundation soils, reaching the following conclusions : (1) By constructing the vibro-compozer piles in the clayey foundation soils, there arises some effect of forced consolidation, and the compound foundation acts against settlement both due to preconsolidation of clay and stress concentration on sand piles.(2) There seems to exist some remoulding of clay around sand piles immediately after driven, but the strength of clay may increase by forced consolidation, which is rather effective for quick stabilization of clay.
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