Volumetric Algorithm of Short Sliding Distance Landslide

This paper classifies landslides into two types of the long sliding distance and short sliding distance landslide. The long sliding distance landslide is that the landslide mass slides away from its original location completely, and the short sliding distance landslide is that the landslide mass slides away from its original location partly. According to principles of geosciences, this paper studies the fitness of the sliding surface and ground surface of landslide mass based on binary polynomial. According to the integral method, this paper chooses the right variable to fit the landslide boundary using the least square method. Then we build a double integral model using the sliding surface and ground surface of landslide mass as the integrand, the landslide boundary as integration domain. After building the model, this paper takes a landslide at Linshuang Road of Gulin Sichuan province as a study case to implement the double integral algorithm. The result shows the double integral algorithm can bring more precise volume information for prevention and emergency relief of landslide disasters.