Analysis of landslide disaster characteristics of Zugong highway (G4218) line

Abstract

Abstract Landslide is a kind of common geological disaster in mountainous areas. The soil and rock mass on the slope have been scoured by rivers or artificially cut slope for a long time. Under the action of gravity, it will slide downward. Landslides are developed in the third section of the highway from Zhubarong to Bangda Bingzhan along G4218 line (Zuogong Highway), but the distribution of hazardous landslides is relatively concentrated. The landslide shear outlet is above the highway, then a large number of gravel and blocks of sliding bodies are piled up and buried on the road surface. Not only is the workload of cleaning up the earth and stones huge and takes a long time, but also after the slope foot is cleared, it will cause the slide of the upper body to further slide, causing the slope of the highway to be moved together with the highway, so that the highway is completely damaged. Therefore, it is of great significance to strengthen the research on the development and prevention of landslide disaster.