Open Access

ARTICLE

Application of GB/T 19426-2004 “Safety Assessment for In-Service Pressure Vessels Containing Defects” to the Long-Distance Oil Pipeline

Zihua Zhao¹, Yu Zhou, Zheng Zhang, Qunpeng Zhong

1 School of Material Science and Engineering, Beihang University, Beijing 100083, China. E-Mail: Zhzh@buaa.edu.cn

Structural Durability & Health Monitoring 2010, 6(2), 101-112. https://doi.org/10.3970/sdhm.2010.006.101

Abstract

Annex H"Safety assessment method for straight pressure pipeline with local thinning area" of "Safety assessment for in-service pressure vessels containing defects"(GB/T 19426-2004) is briefly introduced. The maximum allowable hanging (unsupported) length of straight pressure pipeline with a local thinning area (LTA) is then determined by using this assessment method. This is the first time that the assessment method has been applied to the long-distance oil pipeline. As a typical case, we have analyzed a length of straight pressure pipeline with LTA and gave the relationship of maximum allowable unsupported length, operating pressure and the depth of LTA.

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Keywords

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