Inverse three-dimensional modeling for determination of in-situ state of stresses

摘要

The in-situ state of stresses is essential for most civil or mining engineering projects. An attempt is made here to reproduce this in-situ state by inverse analysis of field measurement data with a three-dimensional explicit finite-difference program using FLAC~(3D) and a three-dimensional fictitious stress boundary element method. The inhomogeneous models are adopted to reflect the real geological conditions both for FLAC~(3D) and 3D BEM. Estimations by numerical simulations are compared with field-measured results and the state of stresses at new locations can be predicted closely.