Study On Physical Simulation And Forecast Model Of Wuchiba Landslide In The Three Gorges' Reservoir

The WUCHIBA landslide located in the right of the Chang jiang River and WanZhouof Chongqing.which is in Hinterland of three gorges reservoir .that is combi-ning zone of The Yangtze river ethnics-people.Three gorges reservoir Will drown nearly half of the slippery body after it stored Water,which huge influence thestability of landslide.Since August 2009 .There is a serious deformation in the right front of landslide and Multiple pull crack about Wide 50cm, deep 1.28m At an altitude of 170m - 177m-166m.Some houses cracked ,at the same time, groundimerged.that caused a great loss to people's lives and property.Therefore, The research that reservoirfilling of Reservoir have an influence on the stability of WUCHIBA landslide is both A complex theory problems and A major engineering application problems .Previous observations indicated :Library water level fluctuation over-indulgence landslide have certain effect. The rainstorm have an More serious influence on the Landslide stability after impounding than Before water storage .There are Three main stages the impound of The Three Gorges reservoir:First. Three gorges reservoirˊ s stage is the same as cut exports of The land-slide When The reservoir water to 135m .Second. Slippery bottom margin have submerged When The reservoir water to 156m .Finally.one half of The Slippery have submerged When The reservoir water to 175m .This paperanalyzed the Geological structure characteristics,the deformation and failure mechanism In the basis of Previous research achievements,geologica-l exploration material of the Field and The environmental geological conditions of the landslide and studied Landslide of groundwater seepage field in features and change rule by using The use of physical simulation experiment and numeric-al simulation software GEO-SLOPE. after that,we established Two-dimensional numerical model which reflected the integration of the Landslide internal mechan-ism and external performance and simulated the Stress-strain feature when there Library water level fluctuation and under the combined action of rainfall. Furthermore, We also establish the WUCHIBA landslide forecast model dam through the rain and library under the variation characteristics of landslide deformation fitting, correction...