Study On The Failure Characteristics And Stability Of Dual Structure Bank Slope Under The Change Of Reservoir Water Level

The structure character of the bank slope is an important factor to determine the stability of the slope.The deformation and instability characteristics of the slope are closely related to the dip Angle of the soil-rock interface and the overall slope Angle,especially when the boundary of reservoir water changes,the distribution characteristics and evolution law of the "infiltration line" of the rock and soil mass on the shore of the binary structure reservoir will present particularity,and the slope deformation and instability mechanism will become more complex.The research object of this paper is the bank slope of a typical binary structure library.After determining the reasonable parameters and measuring equipment of the indoor slope model,the failure and instability tests of the indoor simulated slope model are carried out under multiple working conditions,taking the main influencing factors of the bank slope deformation and instability as variables.The experimental research results were applied to the engineering cases to help establish the numerical simulation slope model for analysis and verification,and the theoretical research conclusions were inversely supported.Finally,the deformation characteristics and stability of kupo are studied from the mechanism.The research results will play an important role in the scientific prevention and control of the reservoir bank,the stability of the reservoir slope,the smooth construction of the water conservancy project and the protection of people's life and property.List a few key tasks:First,the geological data of the slope site in qingshui river reservoir of xiangyun county were collected and sorted out.Second,master the research status by writing literature review,and complete the theoretical analysis and research based on the existing relevant research results.Third,the ideal model of slope to find similar material simulation and design test framework,carry out physical model experiment,the key for reservoir water changes,different from the Angle of slope Angle and the bedrock slope of reservoir water the boundary conditions of reaction,it is concluded that this kind of slope under the influence of reservoir water slope seepage field changes and the general law of rock mass damage instability.Then,after obtaining the ideal model test results,geo-studio software was used for numerical simulation calculation of the slope stability of qingshuihe reservoir,and the general law of the slope stability change was obtained,which was mutually proved and explained with the former.Finally,based on the conclusion,the failure characteristics and stability change law of this kind of slope are further condensed and the corresponding prevention measures are put forward.This paper combines theoretical analysis,model test and numerical model,and through comparative analysis and demonstration of the research results of the three stages,can conclude and summarize the characteristics of slope failure and instability and the general law of stability change,which has special guiding significance for further theoretical research and engineering practice.