Study On The Stability Of Glacial Slopes

With the continuous development of the economy,the largest developing country,China has the world’s largest civil engineering projects.As the largest non-ferrous metal underground copper mine in China,the slope stability of select industrial site is one of the key problems affecting the mine investment,construction and operation,directly related to the stability,safety,environmental protection and benefit of the mine.In this paper,based on the former work,based on the former work,through field geological survey,site in-situ test and laboratory analysis,the geological conditions of select site slope engineering are deeply analyzed.On this basis,the influencing factors of slope stability are analyzed,and the physical and mechanical parameters of rock and soil are determined.Combined with the practical characteristics of the research project,using the method of mechanical analysis and numerical analysis,the stability of the site site slope condition is studied using the lizheng slope stability calculation software and FLAC3D numerical simulation software.At the same time,according to the current norms and standards,the slope support design of anchor reinforcement is proposed.And has obtained the research results and understanding:l.on the basis of the characteristics of glacial till,the determination of the physical mechanics indexes should be on the basis of field geological investigation through detailed field experiment in situ,engineering geological analogy determined comprehensively and mechanics inversion.2.article Sweden arc method and finite difference numerical simulation of excavation slope stability results are basically identical,the safety factor of the two kinds of software under the general condition of the minimum value is 1.141,the earthquake under the condition of minimum coefficient is 1.070,shows both under the condition of the working condition and seismic conditions,slope as a whole is in stable state,but did not meet the requirements of specification,need to take supporting measures.3.By adding slope supporting design in the form of prestressed anchor cable through the numerical simulation analysis,support after the slope stability safety coefficient was 1.362 in the general operating conditions,in under the action of earthquake safety coefficient is 1.164,reached level of slope safety factor under the general condition of not less than 1.35 and the requirement of not less than 1.15 earthquake condition.