Abstract：The national key project，Yichang—Wanzhou Railway，passes through the limestone mountainous area in west Hubei；and many deep-seated tunnels are needed to construct. In order to optimize the design and guide construction，hydro-fracturing stress measurements have been conducted for many boreholes along Yichang—Wanzhou Railway tunnel line in west limestone mountainous area of Hubei Province. It can be concluded that the in-situ stress magnitude in this area is classified as middle to high level；and the direction of the maximal horizontal stress is near to East-West. Based on the in-situ stress results and four distinguish methods，which are engineering rock quality classification standard，Russenes method，Turchaninov method and Hoek method；rockbursts are predicted during tunnel construction in deep-seated and hard rock tunnel conditions；and large deformation are predicted during tunnel construction in deep-seated and soft rock tunnel condition. In order to avoid the disadvantage conditions，reasonable excavation method and safety precautions should be adopted during tunnel construction.
