Yunnan Construction Project Of Geological Hazard Assessment Theory And Methodology Research

Yunnan is naturally a mountainous province. Because of its special geological position and diversified lanforms, Yunnan province is one of the most geologic harzard-prone regions in China.In the past years, as the construction of mountain regions is accelerated, some disasters take place mostly, such these as landslide, collapsing, mud-rock flow, karst collapsing, surface subsidence, ground crack, etc. The events threaten seriously the security of lives and properties of the people in the mountainous regions and influence the harmonious development of economic construction.Though the construction projects of Yunnan Province make certain effects on geological disaster dangerous assessment, still focus on the specification requirements of the dangerous assessment of geological disaster, and study insufficiently on the theory assessed and method systems. Based on the aboved situations, the thesis has carried on the following researches:1.The thesis brings forward the combination relations between the deep cutting mountain regions, activing structural belts, Quaternary System basins and karst regions and the inducing links of geological calamity, namely, geological environment-geological body-induce disaster factors - likely to suffer from calamity, based on the formations of the landslide, collapsing, mud-rock flow, karst collapsing, surface subsidence and ground crack;2.The 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 and the space-time distribution characteristics of the geological disaster in Yunnan;3.Based on the above researches, it forms the basic ideas of the dangerous assessments on geological calamity and specification requirements and constructs the theory and method systems of the dangerous assessments of geological disaster;4.Based on Analytical Hierarchy Precess, it discusses the technological methods on the dangerous assessments of geological disaster of mountain regions and conceives the dangerous assessment system of geological disaster based on GIS.