島根大学総合理工学研究科

ISSN:1342-7113

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Use this link to cite this item : https://ir.lib.shimane-u.ac.jp/3594

Memoirs of the Graduate School of Science and Engineering Shimane University. Series A 34

2000-12-24 発行

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．

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．

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