A Prediction of Water-Gush Yield in Fractured Tunnels under Coupling among Seepage, Stress and Temperature

Water-gush is one of the major hazards in tunnels and other underground engineering. Because the texture characteristics and the existing environment of fractured rock are complex, it is difficult to solve the problemofwater-gush in practice. In this paper, based on an equivalent treatment on seepage of fractured rock mass and on theoretical and empirical study, a definite mathematical model, hydrology numerical simulation method, is proposed for predicting the water-gush yield of the deep buried fractured surrounding rock tunnel. Meanwhile, the proposed mathematical model is verified through an example of tunnel engineering.