深埋地下硐室围岩与隧硐衬砌接触分析

Contact analysis of lining and surrounding rock of underground cave

应用异性结构面抗剪强度理论研究了深埋地下硐室围岩与隧硐衬砌间的相互作用,提出硐室围岩与衬砌间的结构面的力学模型,并应用算例得出了接触结构面可能先于围岩和衬砌达到其破坏强度的结论。

Utilizing shear strength theory of anisotropic rock joints the interaction relation between the lining and surrounding rock of underground cave is studied. Mechanical model of the structural interface between lining and surrounding rock is proposed. Practical calculation show contact surface is subject to the damage before lining and surrounding rock.