宁安高速禾丰隧道围岩稳定性分析

摘要

以江西宁安高速禾丰隧道为例，采用现场监控量测和数值模拟计算相结合的方法，分析评价了该隧道在施工全过程的围岩稳定性情况，结果表明，施工设计方案科学合理，且现场隧道累计变形量较小，硐室较安全稳定。%In this paper,we selected Hefeng tunnel of Jiangxi Ning-An highway as an example to research the tunnel construction methods in bias section of shallow cave. And we used field monitoring measurement method to analysis the surrounding rock stability. The results show that the design is practical,the actual amount of deformation of tunnel is small,and the tunnel is in security and stability.