泥岩岩塊集合体の粘土化を伴う力学挙動の骨格構造概念に基づく解釈(<特集>岩塊盛土)

概要

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In order to understand the mechanical behavior of Tertiary mudstones used as embankment material, one-dimensional compression tests were carried out for two types of mudstone assembly, having different resistance to slaking. The test results were also simulated by FEM based on SYS Cam-clay model. Through the experiment and the simulation, it is found that the assembly with a low resistance to slaking can be regarded as a sand whose structure may collapse quickly, while the overconsolidation loses slowly and the assembly with high resistance to slaking can be regarded as a clay. The seismic response analysis of an embankment shows that it is necessary to examine carefully not only the compression behavior but also the shear behavior of the assembly in designing the embankment.
2012-07-01