深埋地下洞室围岩脆性破坏影响因素及规律研究

Research on influence factors of brittle failure of surrounding rock in deep underground

地下洞室围岩破坏范围与岩体及岩体赋存环境相关,利用m-0准则,采用Examine2D软件从埋深变化、侧压系数、地层岩性等不同角度对深埋地下洞室围岩脆性破坏的影响因素及规律进行研究,研究结果可加深对于硬岩脆性破坏的认知,为地下工程支护设计提供一定的参考。

The damage scope of the surrounding rock mass of underground caverns is related to the rock body and the occurrence environment of rock masses. This paper uses Exim2 D software to use Examine2 D software to influence deep underground caverns from different perspectives such as depth of burial depth,lateral pressure coefficient and stratum lithology. The influencing factors and laws of the brittle failure of the surrounding rock of the chamber are studied. The research results can deepen the cognition of brittle failure of hard rock and provide certain reference for underground engineering support design.