摘要
确保巷道围岩稳定是矿井安全生产的关键 ,如何事先预测巷道围岩的破坏形式是矿山建设工程亟需解决的问题。运用岩石破裂渐进过程分析 (RFPA2D)系统对水平侧压系数为 0 .15的水平圆形巷道围岩破坏形式作了数值模拟 ,直观再现了巷道周边围岩的应力场分布及裂纹演化进程 ,为合理进行支护方案设计。
Ensuring the stability of tunnel-surrounding rock is the key for mine safety production. How to predict the failure pattern of tunnel-surrounding rock is a pressing problem for mine construction engineering. Rock Failure Process Analysis (RFPA) system is used in the numerical simulation of the failure pattern of a horizontal circular tunnel-surrounding rock under a horizontal lateral compressure with a confining pressure coefficient of 0.15. The results visually represent the stress distribution and fracture propagation in tunnel-surrounding rock, providing a reliable theoretic basis for making a rational support design to maintain the stability of tunnel-surrounding rock.
出处
《金属矿山》
CAS
北大核心
2004年第12期5-8,共4页
Metal Mine
基金
国家自然科学基金 ( 5 0 2 0 40 0 3 )
国家自然科学基金 ( 5 0 1740 13 )资助项目
