Spatial distribution analysis and application of engineering disturbance disasters in the Himalayan alpine valley

The Himalayan alpine canyon area is characterized by complex engineering geological conditions and abnormal internal external dynamic processes. Severe slope disturbance disasters can be caused disturbances. In this study, field investigations theoretical analyses were performed to determine the formation mechanism, spatial distribution law, controlling factors of in areas. A total 396 identified within scope 2,800-km survey line. geographic information system mathematical statistical analysis used analyze correlation between such as slope, aspect, elevation, peak ground acceleration, distance from fault, river, rainfall, lithological changes, historical earthquake effects. indicates a good power-law exponential disaster concentration respectively. river are two most important determining disasters; other also influence some extent. These affect quality rock soil mass, affecting stability. main form study cutting. direct result (increase slope) secondary (decrease mass unloading rebound) cutting inducing disasters. Based on previous research results, areas evaluated, along China–Nepal Railway was predicted. divided into extremely high-(13.6%), high-(30.4%), medium-(34.1%), low-susceptibility (22.0%) results provide basis for prevention treatment valley