在分析了事故积水高度的来源基础上,对钢铁企业无坡度敷设的单管和有外加管道的煤气管道的跨度分别进行了强度和刚度计算,给出了管道跨距的简化计算方法。 Based on the analysis of the source of accident waterlogging height, the calculation of the strength and stiffness of the spans of single-pipe and gas-filled gas pipelines with no additional pipelines in the iron and steel enterprises are carried out respectively. A simplified calculation method of the pipe span is given.