Study Of Cure Countermeasure For Hazard Of Highway Subgrade

The rapid development of highway greatly promote the regional economy and the people's living standard. The requirements of highways is getting higher and higher. Highway is a ribbon constructions, through different natural conditions, and involves changing geological conditions. Geological disasters and damaged by flood on the highway,the influence of the highway construction will lead to a variety of highway disaster, so highway disaster-reduction work has become increasingly important. Especially the massive mountainous highway construction were done, type and quantity of hazard became more and more they are big challenge to highway congstruction an managent.Therefore the study of cure countermeasure for hazard of highway subgrade is very important to emergency disaster work.The thesis bases on the western traffic construction project--- roadbed hazard prevention technology popularization and application demonstration. Doing the data collection,analysis and investigation, options, etc.First, collecting data and highway subgrade disasters, analyzing, summing up, summarizing the research achievements, clearing up the project research achievements.Based on the survey data on project and the consolidation of old disaster, summarizes the collapse, landslide and debris flow, highway subgrade subsidence and highway subgrade damaged by flood disaster and the mechanism of such damage to the highway.Secondly, begin with highway subgrade disaster risk assessment, studied the method of the subgrade disaster risk evaluation content. Establish a disaster risk levels of hazard of highway subgrade from hinder vehicle time and relative loss. Provide the basis for the disaster prevention and control for subgrade daily work and disaster emergency disposal plan.Then, from the beginning of highway construction planning, designing, construction, puts forward several stages of highway subgrade hazards. On the highway operation stage management, the disaster prevention and disaster prevention education funds, rules and regulations were studied.And established the highway subgrade disasters before, during, and after the countermeasure system.Finally, establishing subgrade hazard prevention schemes.Choose plan by analytic hierarchy process. The plan choosed is very well.