Kunming, Landslide And Debris Flow Distribution Law And Cause

Kunming is naturally a mountainous city. Because of its special geological position and diversified landforms, Kunming is one of the most geologic harzard-prone regions in Yunnan.In rencent years, as the construction of mountain regions is accelerated, some disasters take place frequently, such these as landslide, collapsing, mud-rock flow, karst collapsing, surface subsidence, ground crack, etc. According to the investigation of geological disaster, we believe that the main geoglogical disasters in Kunming are debris flow, landslip and collapse. These events seriously threaten the security of lives and properties of the people in the mountainous regions and influence the harmonious development of economic construction.In this paper, it systematically discusses the characteristics of development and distribution, and the forming conditions and mechanisms of the geoglogical hazards in Kunming with methods such as geological field investigation, data processing and so on. The thesis analyses the geological reasons from the forming condition of debris flow and landslip, meanwhile it thesis analyses the geological settings of the geological disaster growth and draws a summary of the geographical conditions, geological conditions and mankind activity conditions which are likely to bring out the geological disaster. Based on Analytical Hierarchy Precess, sum up the geological disaster and the space-time distribution characteristics of the geological disaster in Kunming, And analyses systemically many reasons which influence the space-time distribution of Kunming;To sum up, according to the people-oriented principle, based on the zoning of the geological hazard risks, combined with the development characteristics of the geological hazard and the danger degree, it zones Kunming City in some aspects of geological hazard prevention and control base on the occurrence probability and necessary.