Once the natural gas pipeline has an accident,it often causes huge economic losses and casualties.Therefore,it is particularly important to carry out risk assessment on the natural gas pipeline to prevent the occurrence of accidents.The failure mode of polyethylene pipe is analyzed,and the risk factors are identified on this basis and analytic hierarchy process(AHP)is used to determine the weight of various risk factors,and multi-level fuzzy comprehensive evaluation method is used to evaluate the comprehensive risk of pipeline in this paper.The viewpoint of weakening the possibility of failure and strengthening the consequences of failure is put forward.The evaluation results show that this method can transform qualitative evaluation into quantitative evaluation,output quantitative evaluation results,and clearly show the source of risk,which has good applicability.
Polyethylene natural gas pipelineRisk evaluationAnalytic hierarchy processFuzzy comprehensive evaluation
NETL
NSTL
维普
万方数据
