| After 1990,long-distance pipelines were used to transport global energy: oil and gas.It is very important for the development of society.With the further development of economy,the construction of long-distance transportation pipeline is to realize the safety of transportation.Because the pipeline needs long-distance transportation,the safety problems in the transportation process have become the main concern of the public.In practice,the geological risk of pipeline transportation is very obvious.The key content of this study is to review the quantitative risk assessment system of geological hazards in long-distance transportation pipeline.Risk assessment is the main technical tool for pipeline safety management in various countries.The safety risk of pipeline can reduce and prevent leakage to a certain extent.In this paper,the geological hazards which have the greatest impact on the pipeline: collapse,landslide,debris flow,pipeline damage and so on are listed as the main risk assessment objects.According to the geological hazard characteristics of the pipeline,the risk of the geological hazard to the pipeline can be evaluated more specifically.According to the characteristics of different disasters prone to occur and easy to receive damage characteristic index,the classification is carried out.According to the relationship between disaster(disaster),disaster location(pipeline)and disaster location(pipeline),disaster prevention(pipeline)is carried out according to the disaster degree,disaster location and pipeline location Prevention and protection are directly related to pipelines.The weight of risk indicators of different modules can be determined by using analytic hierarchy process(AHP),and the status of each index is different.It is necessary to assign and standardize them to quantify the probability of pipeline failure.Kent pipeline failure consequence assessment model can evaluate the consequence of failure.Based on the risk probability index and impact probability index,the risk assessment matrix and risk classification can evaluate the risk of each pipeline geological hazard point.The assessment results are more accurate and more in line with business needs. |
