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Backward Analysis of the Rock Mass Mechanical Parameters in Excavated Slope of TGP Permanent Lock

Li Duanyou, Li Di, Mao Shuishan (Yangtze River Scientific Research Institute. Wuhan 430010)  
This paper presents a backward analysis method of measured displacements on basis of artifical nerve networks. As its primary application in engineering, it has been used to determine the equivalent elastic modulus of multi medium rock mass of excavated slope of Three Gorges Project(TGP) permanent lock. Using these equivalent elastic modulus and EEM, the tendency of stress and deformation of newly excavated slope of permanent lock in the next excavation step in the same area was analyzed and forecasted.
【Fund】: 国家自然科学基金 长江科学院科学技术基金
【CateGory Index】: U641
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