Random field simulation of foundation settlement of soft soil in Southern China

Abstract

In order to study the effect of spatial variability of soil parameters on foundation settlement. In this paper, the method of combining the theory of random field and numerical analysis is used to systematically analyze the settlement probability of the soft soil foundation in the south of China. The influence of spatial variability of soil parameters on probability settlement of foundation is studied. The results indicate that the settlement value of foundation increases with the increase of parameter variation coefficient, which is the most sensitive to deformation modulus. When the spatial variability of soil space is relatively large, the auto-correlation function selection has a great influence on the settlement of the foundation. The settlement value based on the exponential square is larger, and the single exponential is smaller.