Memoirs of the Graduate School of Science and Engineering Shimane University. Series A

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Memoirs of the Graduate School of Science and Engineering Shimane University. Series A 34
2000-12-24 発行

土質定数の違いが正規圧密粘性土の分岐解析結果に及ぼす影響

Influences of Soil Parameters on Bifurcation Analysis of Normally Consolidated Cohesive Soil under Plane Strain Undrained Compression Loading
Kamei, Takeshi
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This paper describes the influences of soil parameters on bifurcation analysis,using a non-coaxial Camclay model of normally consolidated cohesive soils during undrained shear under plane strain condition. The soil parameters are estmated from plasticity index. The soils exhibited a wide range in plasticity index,from lO−50.
The results indicate that bifurcation behavior using a soil with lower plasticity index occurs at a larger stress ratio and a smaller strain compared to soils with higher plasticity index. It is possible to predict the pattern of slip surfaces from the distribution of maximum shear strain derived from the results of bifurcation analysis.