Preliminary report on landslide early warning on August 20, 2021,in Nangqian County, Qinghai Province, China

Based on the analysis of its formation mechanism, stability state and development trend, this paper focuses on monitoring key indicators such as surface deformation and rainfall to realize early warning of landslide and provide some guidance for landslide disaster prevention and avoidance in the alpine mountainous area of Nangqian, Qinghai Province. The landslide of the Baima Elin Monetary has the topographic and geomorphological conditions of landslide formation, and has the basic characteristics of being influenced by rainfall and climate, so the warning of the landslide should be comprehensive. At the same time, the current situation of the landslide is in an unstable state, and the seasonal freeze-thaw cycle will cause its stability to weaken further. Through macroscopic signs, it is predicted that the deformation of Baima Elin Monetary landslide will continue to intensify without a sign of abatement, and the stability will be further reduced after winter, tending to develop in an unfavorable direction, and engineering measures should be taken as soon as possible to manage it.