Study On The Assessment And Prevention Measures Of Risk Of Major Geological Disasters In Chengdu Chongqing Railway

The geological disasters along Chengdu-Chongqing Railway are very serious.It is significant to improve safety environment of traffic by studying the adaptability of prevention and control engineering to existing geological disaster,geological condition of work area,distribution law,developmental stage and serious extent development trend of geological disasters along railway.Because of the abundant rainfall,soft rock,complex geological structure and developmentof all kinds of geological disasters,it is very necessary to assess the risk of disasters along Chengdu_Chongqing Railway,It finded out geological condition,major types,distribution law,dangerous level,trend of development of geological disaster and damage degree for building by contextual inquiry and data analysis.It estimated the hazard level of disaster by using synthetical index method and fuzzy judgement matrix.Meanwhile,it proposed method of treatment and protection class for the main geological disaster along the railway by combining the valuation level and adaptability of prevention and control engineering to existing geological disaster.It propose measures for Chengdu-Chongqing Railway and provides experience for the prevention and treatment of other railway disasters by field investigation,data analysis,confirmation of the applicability and reliability of the risk assessment methods.The selection of evaluation factors is determined according to the influencing factors of geological disasters.The selection method of each evaluation factor and the determination of the weights of the corresponding is the focus of this research It makes a judgment of the development trend of disaster and divides the grade of risk on the basis of field investigation.It advised the effectiveness of the proposed,disaster protection class and protective measures based on analysis of the effects of prevention and control measures of disaster.