Dynamic And Static Stability Analysis Of Slope Supported With Framed Anchor

With the continuous development of China's economy and the rapid growth of population,the demand for land resources is also increasing.In order to meet people's demand for construction site,it is inevitable to excavate or fill the site.With the continuous increase in the number of slope projects,the problem of slope instability is becoming more and more prominent.If handled improperly,it may bring huge influence to construction and people's production and life.Among all the factors destabilizing slope,Earthquake is one of the main factors affecting the stability of slope.Besides,China is a country with many earthquakes,so it is worth considering for researchers to ensure the stability of slope under the action of earthquake.By using large commercial software FLAC 3D,the static and dynamic analysis of a building slope in Yuxi was carried out under the condition of no-support and frame-anchor reinforcement,and the positive influence of anchor-lattice beam combination support on slope stability was studied.The main research contents of this paper are as follows:(1)Consult relevant data,summarize the development of slope stability analysis,and the main methods of slope stability analysis.(2)The classification,main failure forms and influencing factors of slope are briefly summarized.The treatment measures of common slope are summarized.(3)The principles of strength reduction method and strength reduction complete dynamic analysis method used in software FLAC 3D and calculation are introduced.The effectiveness of the complete dynamic strength reduction method is verified by an example.(4)Establish a three-dimensional analysis and calculation model according to the engineering data.By using FLAC 3D,the stability of slope under two working conditions of excavation by step without and with support is compared and analyzed,and the influence of frame-anchor reinforcement structure on slope stability is studied.(5)Study the stability of the slope under the action of earthquake.Based on theprinciple of complete dynamic strength reduction,the stability of slope with or without support is analyzed by time history analysis.The reinforcement scheme of the slope is determined.