Study On Slope Stability Analysis Based On Revetment Reconstruction

In this paper,the reconstruction of the revetment is based on the construction of a section of the expressway,which is built on the side slope of the highway because of the special topography.In chongqing area,because there is insufficient space on the mountain,the complex terrain and more characteristics,in order to ensure the normal order of the highway opened,most of the time,so will cut through the form,on the highway side slope body,opened a banquette.Note that the slope of this paper is mainly aimed at rock slope.In the practical engineering application,to meet the practical application of the highway,the slope road has become increasingly close to the use of the highway.Using finite element MIDAS/NX software,the model establishment and numerical simulation analysis are carried out for a certain section of slope protection road in chengdu-chongqing expressway.The stress and strain distribution characteristics under the combined action of vehicle load and gravity load are obtained,and the necessity of slope support for slope protection is obtained.The main research work and results of this thesis are as follows:(1)the banquette reconstruction using this concept,and the destruction of highway slope are classified in this paper,the types and reasons,on the banquette reconstruction may occur in the process of slope failure forms have a comprehensive understanding.(2)using MIDAS/NX finite element software for numerical simulation analysis.Under the condition of two conditions,the stress and strain distribution characteristics of the slope are analyzed under the action of gravity load and vehicle load.Sure have advantages and disadvantages of banquette slope in the under vehicle load,need to focus on the issues,as well as the numerical simulation analysis by MIDAS/NX software,make sure to have banquette the importance of the rock slope supporting.(3)The slope protection structure suitable for Chongqing area is put forward,and the influencing factors of anchorage effect are analyzed.Then the sensitivity of bolt design parameters to slope protection safety factor is evaluated and analyzed.This chapter makes full use of the difference of sensitivity of bolt design parameters to slope safety factor,optimizes the design of slope bolt support,and obtains a more safe,more economical and reasonable optimization scheme.(3)using MIDAS/NX finite element software for numerical simulation analysis.Under the condition of two conditions,the stress and strain distribution characteristics of the slope are analyzed under the action of gravity load and vehicle load.Sure have advantages and disadvantages of banquette slope in the under vehicle load,need to focus on the issues,as well as the numerical simulation analysis by MIDAS/NX software,make sure to have banquette the importance of the rock slope supporting.(4)using MIDAS/NX software to carry out numerical simulation analysis of slope protection slope.Under the condition of bolt support,the stress and strain distribution characteristics of slope protection under the combined action of gravity load,vehicle load and different vehicle loads are analyzed.The importance of bolt support to maintain the stability of slope rock slope is determined.