摘要
用有限元位移反分析法,对金川二矿区某巷道的围岩力学参数(变形模量)进行了空间效应的数值分析。分析结果表明,在岩体破碎、工程地质条件恶劣且处于高地应力环境中的金川矿区,巷道由于开挖卸荷,岩体质量下降,相应的力学参数变化很大。最后,初步得出了此巷道围岩变形模量的空间分布规律。
FEM back-analysis of displacement is used to explore the spatial effect of deformation modulus of surrounding rocks in Jinchuan deposit II. After analysis,it is found that the deformation modulus is changed greatly as a result of excavation and unloading of surrounding rocks which is situated in the environment of high stress field and bad engineering geology conditions. At the same time,the spatial distribution of deformation modulus is obtained.
出处
《岩石力学与工程学报》
EI
CAS
CSCD
北大核心
2004年第1期64-68,共5页
Chinese Journal of Rock Mechanics and Engineering
基金
国家重点基础研究发展规划(973)资助项目(2002CB412702)
