Sdudy On Stability Analysis And Reinforcement Method Of Soil High Slop

With the large-scale construction of mountain slopes naturally bound to make drastic renovation and destruction that is caused by stress redistribution slope, so the dynamic changes in the slope stability during excavation, the excavation and support rainfall and other factors during the construction period and the timing of the stability of the slope has a greater impact. If poor governance, slope failure is likely to occur. Therefore, the study of slope excavation and support the process of deformation rule and stability of excavated slope has a very important practical significance.Based on the NanPo Floor to CiEn Temple of BeiHuan Road of Lanzhou City high slop project(K0+100~K5+100) section, on-site monitoring and numerical simulation method of combining application of its stability during excavation of sex and the mutual influence of the frame bolt levels between step process of excavation and support for a more in-depth, comprehensive study.Firstly, the system analyzes the influencing factors of high slope stability influence, combined with the NanPo Floor to CiEn Temple of BeiHuan Road of Lanzhou City actual high slope engineering stability factors in high slope excavation process in detail analysis. Then, according to the actual situation and the needs of the project, we designed a site in line with the needs of the monitoring programs and monitoring systems. And timely feedback quickly detected data into the hands of managers, to provide technical support for the development of the next slope excavation plan.As the prototype slope of the NanPo Floor to CiEn Temple of BeiHuan Road of Lanzhou City section, useing of MIDAS-GTS finite element software, namely the establishment of a moral and numerical models of excavation by the excavation of bolt support frame. The effects of different timing of the slope excavation and support of maximum shear strain, safety factor, displacement and other variables. Conclusions by the combination of numerical analysis and monitoring results, to develop correct and effective timing of the slope excavation and support, to prevent the possibility of slope instability in the excavation process.On this basis, in order to frame bolt support for the excavation numerical model to analyze the framework conditions of anchor bolt support axial force and moment frame beam by variation of axial force and bending moment analysis step slope excavation and support the process of interaction between all levels of law framework bolt. Framework bolt design provides a certain reference value.In this paper, the research work can provide theoretical reference for the calculation of high soil slope multilevel framework bolt design, and to promote the use of similar projects, has important theoretical and practical significance.