A NEW PREDICTION METHOD OF DEFORMATION INTERVAL OF SURROUNDING ROCK MASS IN UNDERGROUND ENGINEERING

摘要：

The uncertainty of the macro equivalent deformation of surrounding rock mass after excavated is caused by the high-heterogeneous rock mass.So the agreement between the deterministic deformation and the measured deformation is often difficult.For overcoming the limitation of the deterministic analysis methods,a new integral forecast method of deformation interval is presented based on the rock mass quality index GSI(Geological Strength Index) and RMR.The intrinsicheterogeneity of rock mass is considered in this method.Finally,it is applied in the deformation interval forecast of surrounding rock mass in the underground powerhouse of Jinping II Hydropower Station Project.The results indicate the good utility of this method.

关键词： Heterogeneity Youngs modulus GSI RMR

作者: C.Q.Zhang H.Zhou X.T.Feng

作者单位: State Key Laboratory of Geomechanics and Geotechnical Engineering,Institute of Rock and Soil Mechanics,CAS,Wuhan,Hubei 430071,China

会议类型: 国际会议

会议名称: 第二届国际非均质材料力学会议(The Second International Conference on Heterogeneous Material Mechanics)

会议地点: 安徽黄山

会议语种:英文

页码: 1126-1129

在线出版日期: 2008-06-03（万方平台首次上网日期，不代表论文的发表时间）