Genesis Analysis and Prevention Measures for Unexpected Geological Disaster Based on Typical Cases in Shaanxi Province

摘要

Geological disaster situations in recent 10 years at Shaanxi Province are summarized, the forming mechanisms of geological disasters are analyzed and the prevention and control measures are put forwards.The research shows that unexpected geological disasters mainly occur in July and the spaces are basically distributed in Qingling-Bashan Mountains.The types of disasters are given priority to landslide, debris flow and falling.The main disaster situation level is small, second is medium and large, extra large ones are less.The root cause of disasters is special geological environment;the trigger factor is mainly precipitation and human engineering activities are secondary.