FORECAST METHOD OF MOUNTAIN DISASTER USING TUNNEL DEFORMATION LAW IN SLOPE FIELD
坡体病害地段利用隧道变形规律预测山体灾害的方法

The deformation characters of tunnel in elastical, elasto-plastical and rheological rock mass are discussed in theory. The change laws of tunnel deformation with pressure and time are given to get the theory basis for study of forecasting methods. The deformation laws of tunnel with single and couple slip surfaces of landslide are ana- lyzed especially. The allowed displacement and deformation values of forecasted tunnel are evaluated with some ways. At last, some calculation and analysis methods for forecasting are given.