確率数値限界解析を用いた粘性土地盤の支持力特性

抄録

This paper describesa probabilistics tudy of the two dimensional bearing capacity of a vertically loaded strip footing on spatially random, cohesive soil using Random Field Numerical Limit Analyses. The analyses use a Cholesky Decompositiontechnique to represent the spatial variation in undrained shear strength within finite element meshes for both upper and lower bound analyses, assuming an isotropic correlation length. Monte Carlo simulations are then used to interpret the bearing capacity for selected ranges of the coefficient of variation in undrainedshear strength and the ratio of correlation length to footing width.