【作者】 卢书强； 巨能攀； 许模； 邓辉；

【Author】 LU Shu-qiang JU Neng-pan XU Mo Deng Hui (Ntional Professional Laboratory of Geological Hazards Prevention,Chengdu University of Technology,Chengdu 610059,China)

【机构】 成都理工大学地质灾害防治与地质环境保护国家专业实验室；

【摘要】 在现场调查的基础上,通过对西南某电站地下厂房洞室群围岩岩体质量的分析评价,采用三维有限元数值分析方法,对比分析不同岩体质量条件下,洞室开挖后围岩的二次应力场、变形场和塑性破坏区的差异。较全面地讨论了岩体质量对地下洞室围岩稳定性的影响。更多还原

【Abstract】 In this paper,taking the underground cavities of a planned hydroelectric station located in Lancang River as an example,three-dimensional finite element numerical modeling technique is used to analyze systematically the distribution features second-ary stress field,displacement field and failure zone in the surrounding rockmass of the underground cavities after the excavationwhen the surrounding rockmass quality rank change from Ⅱ to Ⅳ.The influences of rock quality on excavation effects are dis-cussed in detail.更多还原