Analysis And Forecast Of Landslide Damage Based On

With the social progress, improve, and expand the scale of urban planning and construction of the human condition as well as to increase the exploitation of natural renovation project, geological disasters occurred frequently. This affects the production of human life, but also a threat to human life and property safety. Today, research and analysis of geological disasters has also received attention. This paper selects Zhenyuan County, Yunnan Province as the study area, the use of GIS for landslide hazard under the single factor sensitivity for analysis, but also on the susceptibility of landslides under the combined effect of multiple factors, vulnerability, risk, risk Analyse. Through each base layer for computing, classification, assignment and other operations for landslide hazard Zhenyuan County were analyzed. Finally got the classification of landslide geological hazards risk and risk level. At the same time, according to the results of the study, landslide geological disaster prevention measures are put forward. Thesis research work is as follows:.1 Collect related data, this paper introduces the application of GIS in the geological disasters of landslides and the development present situation at home and abroad, and emphatically introduces the GIS research in landslide disaster.2 Combined with GIS technology, and put forward the thesis of the research content and the technical route, using the GIS can be used to study the function, and the operation of the basic methods are introduced.3 Collecting natural conditions in the study area and related data, using GIS technology draws relevant datum, including the degree of slope map, topographic relief map, precipitation distribution, fault zone distribution, human engineering activities, such as basic datum4 Logical model analysis and determine the research area by using the single subsquently environmental factors influence on the sensitivity of landslide, establish landslide geological disaster risk, risk, vulnerability and sensitivity evaluation of each thematic layer, forming the evaluation system of landslide.5 Using the spatial analysis of geographic information system technology, the various special layer superposition of spatial overlay analysis and calculation, get the vulnerability, such as sensitivity, risk evaluation index. Finally on the basis of the evaluation system of landslide, it is concluded that the hierarchy of landslide.