Geological disaster causing factor identification method and system

Abstract

The present application relates to the technical field of geological disaster monitoring and early warning and risk assessment, in particular to a geological disaster disaster-causing factor identification method and system, comprising: acquiring a digital elevation model of a target area and a peak acceleration data of an initial extreme event, calculating the geological vulnerability index of each coordinate point and dividing the key monitoring area; collecting rainfall data, surface displacement data and groundwater data to form a multi-source monitoring data set; inputting a geological risk basic assessment model to obtain a basic model risk index; cleaning and time-unifying the multi-source monitoring data set to construct a monitoring feature data table; calculating a geological degradation coefficient, correcting the baseline rainfall disaster-causing threshold, and calculating the preliminary state assessment metric; combining the historical disaster matching degree and the basic model risk index to obtain a comprehensive risk metric, outputting a risk level label and determining the main disaster-causing factor; the present application realizes the interpretable identification of the main disaster-causing factors such as rainfall infiltration, groundwater uplift and slope displacement acceleration.

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