某地下厂房围岩稳定的弹塑性数值分析

Surrouding Rock's Elasto-plastic Numerical Analysis of An Underground Power Station

采用二维弹塑性有限元法,分析了洞室群在开挖过程中和开挖完成后的变形特征与应力变化,给出了施工过程中洞室群出现拉应力与塑性区的部位。

By two dimensional elasto-plastic Finite Element Method, the chamber group＇s deformation characteristic and stress＇s change have been studied; The position of pull stress and plastic zone are given during and after the construction of chamber group. At last some constructional advices are brought forward. All the results are referential to some other similar projects.