The Mesh-free Method for the Layered Rock Mass Based on the Couple Stress Theory
SUN Yu-zhou
CHEN Gen-sheng
Abstract：In this paper, the couple stress theory is adopted to describe the constitutive response of the layered rock mass, and the mesh-free method is employed to carry out the numerical simulation for the layered rock mass. Since the moving least-square approximation can produce the shape functions with the higher-order continuum, the strain and the curvature are directly interpolated with the nodal displacements, and the mesh-free computational scheme can be eas-ily established. The numerical simulation is carried out for the underground cavity in the layered rock mass, and the effi-ciency of the couple stress theory and mesh-free method is studied and the effect of scale factor is discussed.
Keywords：layered rock masscouple stress theorymoving least-square approximationmesh-free methodscale factor
Publication Date：2015-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 1-5 )