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A Study on Accidents of Buried Pipeline Crossing River  

Ma, Young-Wha (Dept. of Mechanical Engineering, Chung Ang University)
Kim, Ji-Yun (Dept. of Mechanical Engineering, Chung Ang University)
Yoon, Kee-Bong (Dept. of Mechanical Engineering, Chung Ang University)
Do, Young (Dept. of System Research, Korea Gas Safety Corporation)
Publication Information
Journal of the Korean Institute of Gas / v.14, no.6, 2010 , pp. 51-56 More about this Journal
Abstract
Records of accidents for buried pipeline across the river were gathered and causes were analysed. The results are intended to be utilized as basic data for determining a reasonable criteria for the depth of buried city gas pipeline crossing the river. Accident of river-crossing buried pipeline was mainly caused by flood. Sometimes corrosion was detected at the failed location of the pipe. In order to determine reasonable and efficient depth of burial of the pipeline, hydraulic evaluation of the river and structural analysis of the pipeline are necessary. Published data for the buried natural gas pipeline incidents were also investigated and summarized. Main causes of buried natural gas pipeline incidents were external interference and corrosion. However, the two main causes of incidents showed significant difference in the proportion of the entire incident, depending on burial environment.
Keywords
buried pipeline; river crossing; accident; natural gas; depth of burial;
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