Dynamic And Stability Of Landslide Under Earthquake Loading

Earthquake-induced landslide has got people's attention because of its huge disaster strength. Only in 20th century, the earthquake-induced landslide had resulted tens of thousands lives loss and several thousands US dollars losses. Earthquake-induced landslide has always been a worldwide difficult problem in the civil engineering, which is related with many factors and haven't been solved its occurrence and development.Based on the previous study on the stability of landslide induced by the earthquake, through zoning the earthquake-induced landslide, in this paper the author studies the relation between the earthquake-induced landslide and seismic parameter, the influence mechanism and factors of earthquake to landslide.With the widespread investigation to landslide along the highway route from Xichang to Panzhihua, through the analysis of the risk of earthquake along the route, the author made out the evaluation on the earthquake-induced landslide along the highway and gave the zonal spot of earthquake intensity. Through the investigation to landslides along the route, the author chose 15 landslides which are related closely with engineering, the author chose Dechang landslide as the typical object of â…§ dgree and Miyi landslide as â…¦ degree.Through the studying on landslide stability induced by earthquake and qualitativly analyzing the relation between the landslide stability and seismic force, the author found the destructive phenomenon of earthquake was not appearing or developing as constant force, but was related closely to earthquake acceleration. The aim of this paper consists in the method to analyze the landslide stability induced by earthquake and to find out the effective measure to prevent landslide's occurence.Based on the finite element theory, through using GEO-SLOPE software to modify the influence mechanism of earthquake to landslide and the rule of landslide stability, the author built the dynamics analysis model of landslide and took Dechang landslide as example, used QUAKE/W module software to...