埋地煤气管道泄漏事故分析

A Failure Analysis on the Leakage of an Underground Gas Pipeline

对一起埋地煤气管道泄漏事故进行了认真分析：发现发生泄漏的铸铁管道存在“重皮”等铸造缺陷。由于管道附近排水等影响使管道下方的土壤塌陷，改变了管道的正常支撑，使其受到弯曲载荷，致使铸铁管发生断裂。文章还提出了一些预防这类事故的措施和建议。

Abstract Defects were found in the broken cast iron gas pipes.In this paper,the leakage of an underground gas pipeline are analyzied.Some important suggestions are presented.