ビショップ分割法を用いた三次元支持力解析(I)

Abstract

Although the method of slices for slope stability has been verified successful in the calculation of bearing capacity of strip footings on inhomogeneous and an-isotropic foundations, it has not yet been applied for three dimensional problems. A conventional 3D analysis of bearing capacity of square and rectangular footings is presented in this paper, by use of the Bishop's simplified method of slices, for assumed curved sliding surfaces composed of log-spirals in the direction of the longer axis of the base. The paper consists of two parts; Part(I), derivation of equilibrium equations to obtain bearing capacity, and Part (II), numerical calculations to study characteristics of 3D solutions and shape factors.