Abstract:

The transversal isotropic media model is adopted to make multivariate regression analysis on the stress field of strata, which is then used to make quasi threedimensional numerical analysis on the stability of the large underground caverns. And the earthquake effects in the above analysis are taken into consideration and the useful suggestions are proposed for the anchor reinforcement scheme of the surrounding rocks.

Key words:  regression analysis amage and fracture , reinforcement effect , stability of surrounding rock