Back Analyzing Rock Parameters Based on Difference Evolution Arithmetic and Finite Element Method
Aiming at the complexity and uncertainty of rock and soil body, the paper the paper introducing a new global intelligent optimization arithmetic – Difference Evolution (DE) and combined with stress return mapping nonlinear elastic-plastic Finite Element Method(FEM), realizing rapid elastic plastic parameters identification of surrounding rock. The analytical theory and method are introduced in detail, analyzes the tunnel of Dalian Metro by the proposed method, and gets satisfied results.
Qing Yang, Li Hua Zhu, Jing Jing He, Zeng Feng Yan and Rui Ren
Z. P. Song et al., "Back Analyzing Rock Parameters Based on Difference Evolution Arithmetic and Finite Element Method", Advanced Materials Research, Vols. 368-373, pp. 386-389, 2012