中文摘要：

文章结合厦蓉高速贵州境巫帮隧道现场工程地质和隧道开挖情况，制定了详细的隧道围岩监测方案，确定了班场量测的内容、项目与方法，提出了围岩稳定判别标准。并通过对隧道典型断面的拱顶下沉量、周边位移收敛量及地表沉降位移的监测数据的分析．阐述了闭岩变形发展变化规律和产生的原因。

英文摘要：

The geological condition of Wubang tunnel in Guizhou is introduced in this paper.The article established the scheme,which determined the method, items and contents of in-situ measurement.The stable standard of surrounding rock was pro - posed as well,On the basis of these, the construction process was monitored.Then the data of the surrounding rock deformation was analyzed, including arck settlement,section convergence and surface subsidence.The reason and development principle were discussed in the end.The achieved results could take good effect in guiding construction.