Research On The Regionalization Of Highway Geological Disasters Based On GIS

The highway natural regionalization takes the standard, is the basis of each kind of standard regulations and formulations of the highway engineering, and has the certain instruction significance to the highway construction's basic steps. The geological disaster has the extremely bad influence to the highway engineering; the research on highway geological disaster regionalization is helpful to investigate distributed situations of the highway geology disaster in the national territory scope, and helpful to formulate countermeasures to prevent and reduce the region highway geological disasters,so this paper has discussed the regionalization of highway geological disasters based on GIS.First, this paper established the type system of the highway disaster regionalization, set up the research objects of highway geological regionalization, include the landslide, the mud-rock flow, the karsts caved and the earthquake, and has analyzed the various disasters characteristic and their harms to the highway engineering. Carried on the influence factor analysis of highway geological disaster division, and proposed the index system of regionalization , Then indexes were managed based on GIS.Second, took it as the basis of reference and confirmation of the final achievements of regionalization, simultaneously some parameters also became the division key indexes.Finally, has used unified division method of up-bottom and bottom-up, and man-machine interactive way, carried on the regionalization schemes'research, proposed the highway geological disaster hazards'regionalization in China, and has carried on the division appraisal explanation.