高地应力区大型地下洞群的稳定和设计优化研究

Study on Stability and Design Optimization of Large underground Caverns in High-Stress Areas

采用横观各向同性介质模型对各向异性高地应力地区的地应力场作多元回归分析。运用分析所得的地应力场,对地下洞群的围岩稳定性做了准三维和三维数值分析。在分析中分别采用了岩体弹塑性模型和断裂损伤模型。并对厂房围岩的锚固方案提出了有应用价值的建议。

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.