常规指标 meaning in English

regular indices

In response to the limitation of conventional index for stability and optimal design of underground rockmass engineering with high geostress and the drawbacks of conventional energy release rate ( err ) rockburst index based on linear elastic theory without brittle failure phenomenon , local energy release rate ( lerr ) , a new rockburst index is proposed
摘要针对地下工程稳定性分析与优化的常规指标在高地应力条件下的局限性及传统的能量释放率岩爆指标把岩体看成不发生脆性破坏线弹性体的不足，提出局部能量释放率新指标。