Due to the metamorphic soft rock characteristics of water softening and disintegration,there is the phenomenon such as groundwater seepage and water inflow in tunnel construction,which could bring huge hidden danger to the tunnel construction safety. T aking the typical groundwater seepage zone of W udang group schist tunnel in Shiyan-fangxian expressway as research object,in this paper,the groundwater seepage effect in metamorphic soft rock tunnel construction w as analyzed from the aspects including groundw ater seepage characteristics of disaster section,water rationality of surrounding rock,physical mechanics function of groundwater,and put forward the specific control measures of groundwater. T he practice showed that the measures presented in this paper has good control effect on groundw ater leakage of soft rock tunnel,w hich could provide a reference for w atery section safe construction of similar soft rock tunnel.%由于变质软岩具有遇水软化、崩解的特征，在隧道施工过程中易出现地下水渗漏、涌水等，给隧道施工安全带来巨大隐患。以十堰至房县高速公路武当群片岩隧道中典型地下水渗漏区段为主要研究对象，从灾害段地下水渗漏特征、围岩的水理性、地下水的物理力学作用等方面阐述了变质软岩隧道施工中地下水渗漏的影响，并提出了有针对性的地下水控制措施。实践证明，该措施对软岩隧道地下水渗漏具有较好的控制作用，可为类似软岩隧道富水段安全施工提供参考。
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