Landslide Risk Assessment Of Highway System

With the rapid development of highway construction, highway geological disaster has become one of the non-ignorable problems which affect the transportation and economic construction of our country, especially the destruction of highway landslide. Therefore, it is necessary to establish and perfect the highway landslide risk evaluation system. According to the results obtained from the evaluation system,we can taken a series of scientific and reasonable preventive measures,so as to reduce the highway landslide losses in maximum and guarantee the highway passage clear.Firstly, starting from the disaster features of highway landslide, analysis it from the two aspects of the landslide hazard:natural factors and human factors, forming a hazard factor relationship chart. Based on the analytic hierarchy process(AHP) method of fuzzy comprehensive evaluation theory established highway landslide hazard assessment model; According to a room landslide on national highway 316 line fuzzy comprehensive model that based on the AHP is used to evaluate the hazard, and get the risk factor.Secondly, to research disaster bodies of the highway landslide,which are divided into economic disaster bodies, community disaster bodies, environment disaster bodies, and analyze its resilience, and then establish the highway structure in ontology model, using the fuzzy comprehensive evaluation based on AHP carried in the West Orchard landslide vulnerability assessment successfully.Finally, based on vulnerability analysis, its loss is divided two major aspects of evaluation: economic losses and non-economic from landslides for damage, establish the Highway Landslide damage assessment model. Based on that, from the engineering control measures and non-engineering measures to study the protection engineering, and thus establish the economic evaluation of prevention methods and models.