支护条件下隧洞围岩稳定性及支护结构受力分析

Analysis of Surrounding Rock Stability of Tunnel and Force Analysis of Supporting Structure under Supporting Conditions

以某大型引调水工程IV类泥质板岩300 m埋深隧洞为研究对象,对毛洞、锚固支护洞身的围岩稳定性及应力应变进行对比分析。计算分析结果表明,锚固支护措施能够改善围岩的受力状态,更有利于保障围岩的稳定性。

Taking 300 m buried deep tunnel of type IV muddy slate of a large-scale water diversion project as the research object,comparative analysis of the surrounding rock stability,stress and strain of the burrow and anchoring and supporting tunnels is carried out.The calculation and analysis results show that the anchoring and supporting measures can be improving the stress state of the surrounding rock is more conducive to ensuring the stability of the surrounding rock.