海底隧道围岩稳定性分析现状及方法

随着经济的快速发展,我国正处于隧道建设的高潮时期,在隧道建设上我国每年都投入大量的人力、物力和财力,这就迫切需要实现隧道建设高效与经济。隧道施工过程中,洞室周围岩体发生应力重新分布,当这种重新分布应力超过围岩的强度极限时,将会造成围岩的失稳破坏,因此隧道施工过程中洞室围岩稳定性评价与受力状态研究就显得日益重要。

Analysis Status and Methods of Subbottom Tunnel Surrounding Rock Stability

With the rapid economic development, China is at the height of the tunnel building.Every year,our country put a lot of human and material resources and financial resources in the construction of the tunnel which urgently need to achieve efficient and economic tunnel construction. During the Tunnel construction process, the chamber occurs re-distribution of stress around the rock, when such re-distribution of stress exceeds the rock strength limit, the instability will cause destruction of surrounding rock, so the tunnel surrounding rock stability and evaluation of the stress state during construction become increasingly important.