Study On Stability Of Qingxi River Slope Based On Stress Distribution

Natural disasters such as landslides and debris flows occur frequently in China,causing incalculable casualties and economic losses every year.With the continuous development of rock and soil mechanics,the research on slope deformation mechanism and stability has also become the focus of researchers in the rock and soil field at home and abroad.Instability failure of slope is a gradual failure process,but the traditional method of slope stability analysis is not enough to accurately describe the failure process of slope.In this complex process,the force distribution characteristics and slope stability analysis need us to further explore.In this paper,the stress and strain distribution of the slope are calculated and analyzed by theoretical solution to judge whether the slope is in a stable state.This paper mainly studies from the following aspects:(1)Through the study of the relevant status at home and abroad,the internal and external formation factors of the slope are analyzed,the development course of the slope stability calculation method is summarized,and the failure mechanism of the slope and the influence on the slope stability are studied.(2)Through the field investigation of Qingxi River slope,the engineering geological conditions and hydrogeological conditions of Qingxi River slope are introduced in detail,and the Qingxi River slope is understood in detail.(3)This paper introduces several commonly used slice method and analyzes it,analyzes the advantages and disadvantages of each slice method,it can simply and quickly analyze the stability of the slope,but the calculation principle of the slice method is artificial assumption,and the development is only the improvement of the assumption principle,and the authenticity of the calculation results of the slope stability is questionable.To make a foundation for the proposed theoretical solution.(4)Combined with the slope model,the calculation process of the theoretical solution is explained in detail.The concrete steps are to establish the gravity description equation,geometric boundary equation,stress balance equation and bonding strength criterion,and to solve the assumed parameters.The Rhinoceros can be used to generate a rendering cloud image to determine the stability of the slope.(5)Taking the slope of Qingxi River in Wuxia Town,Wushan County as an example,the force and stability of the slope were analyzed respectively by the traditional method and the numerical method,and the rationality of the proposed method was verified by comparing the qualitative and quantitative methods with the traditional results.Through the calculation of the slope stress and strain distribution to determine the prevention and control measures for the subsequent landslide design laid a solid foundation.