摘要
通过理论推导和试验分析研究岩石扩容与围压的关系。应力状态和围压对岩石扩容影响显著。描述岩石扩容的主要参数为扩容角和扩容指数。扩容指数与围压的关系函数简单实用,方便应用于指导巷道稳定性分析和围岩支护设计,具有较大的参考价值。
The relation function of rock dilatancy and confining pressure is investigated by theoretical and experimental methods.The relationship between rock dilatancy and confining pressure is investigated by theoretical and experimental methods.It is found that the state of stress and confining pressure has a significant influence on rock dilatancy,and the main parameter of rock dilatancy is dilatancy corner and dilatancy indices.Through the relationship between dilatancy index and confining pressure,the tunnel stability analysis and rock support design can be better guided, which has a larger significance.
出处
《有色金属》
CSCD
北大核心
2009年第4期134-137,共4页
Nonferrous Metals
关键词
采矿工程
岩石扩容
扩容指数
峰后
围压
mining engineering
dilatancy
dilatancy index
after the peak strength
confining pressure
