The Seepage And Stability Analysis Of Lu E Rock-earth Dam

Lu e Reservoir Project is located in Lvchun County,Honghe Prefecture,Yunnan Province.It is located on the tributary of the Niu kong River in the west of Lvchun County.Lu e reservoir project level for the ? level,the scale of the project is medium,is a town,rural human and livestock water supply and agricultural irrigation as the task of water conservancy projects.This paper mainly designs the rockfill dam of the retaining wall of the retaining structure of the reservoir project.The key of the design of the earth-rock dam is whether it can meet the slope stability under seepage.The main results are as follows:(1)According to the hydrogeological data,determine the dam type selection,project layout and so on.The dam height data are determined by calculation.(2)According to the hydrological data,the calculation and calculation of flood regulation are carried out to determine the reservoir water level,normal water level,design flood level,check flood level and other reservoir characteristics and reservoir scale.(3)According to the size of the dam to determine,to CAD drawing,will be introduced into the legitimate software to start modeling,enter the corresponding calculation parameters to complete the modeling.The calculation parameters are selected according to the project geological survey and the geotechnical test results.The calculation results of the rational software show that the dam seepage stability and anti-sliding stability safety factor meet the specification requirements.(4)Geo-studio software was introduced,and Geo-studio software Seep/w module and Slope/w module modeling,calculation of the same parameters and legitimate software.Calculate the single width and seepage flow,the downstream escape ratio,anti-sliding stability and safety factor.(5)Although the safety factors of the anti-slip stability calculated by the two softwares are differences,within a reasonable range.It can be used for dam safety assessment.Combined with the minimum safety factor of slope stability,the conclusion is that the design of the earth-rock dam fully satisfies the seepage stability and the slope stability of the dam.