Method for analyzing landslide susceptibility and record media recorded program for implement thereof

摘要

According to an embodiment of the present invention, there is provided a method for analyzing landslide vulnerability, comprising: constructing a spatial database for analyzing information of a landslide occurrence area; Determining a probability distribution characteristic of intensity constants for the samples in the landslide occurrence region; Generating a cumulative distribution function according to a probability distribution characteristic of the strength integer to obtain a random number; Calculating a groundwater level in consideration of a rainfall intensity and a cumulative rainfall amount of the landslide occurrence area; Obtaining the probability density distribution curve of the safety factor by inputting the strength constant, the random number, and the groundwater level into a state function; And calculating a failure probability from the probability density distribution curve. The present invention can be applied to the landslide vulnerability analysis, which can be useful for the landslide disaster caused by rainfall, especially for the analysis using the unsteady flow model. . In addition, it is possible to estimate the landslide prediction and risk by applying the change pattern of the rainfall intensity, and to utilize it for the disaster prevention prevention and analysis study.