Chapter
Jul 21, 2014
Stress Analysis of the Large Excavation River-Crossing Oil Pipeline
Authors: Xiaonan Wu [email protected], Hongfang Lu, Shijuan Wu, Kun Huang, Jie Wan [email protected], and Weitao LiAuthor Affiliations
Publication: Recent Advances in Material, Analysis, Monitoring, and Evaluation in Foundation and Bridge Engineering
Abstract
Stress concentration of the crossing oil pipeline is the main reason for pipeline failure. Currently, the study on stress analysis of large excavation crossing river oil pipeline is seldomly done. To ensure the safe operation of the pipeline, it is necessary to analyze crossing river oil pipeline stress distribution under operating conditions. In this paper, we do the numerical simulation of a certain oil pipeline with large excavation method using stress analysis software CAESAR II, come to the distribution of the pipeline, and check whether it can meet the strength requirements. Through the engineering case study, we concluded that the maximum stress generated at saddle weight under the operating conditions means that the saddle weight location is the dangerous section of the crossing river pipeline. After analyzing and comparing primary stress and secondary stress, we concluded that temperature difference is the main factor that generates stress in oil pipelines, whereas the effect of internal pressure is less.
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© 2014 American Society of Civil Engineers.
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Published online: Jul 21, 2014
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School of Petroleum Engineering, Southwest Petroleum University, Chengdu, Sichuan 610500, China.E-mail: [email protected]
Hongfang Lu
School of Petroleum Engineering, Southwest Petroleum University, Chengdu, Sichuan 610500, China.
Shijuan Wu
School of Petroleum Engineering, Southwest Petroleum University, Chengdu, Sichuan 610500, China.
Kun Huang
School of Petroleum Engineering, Southwest Petroleum University, Chengdu, Sichuan 610500, China.
Research Institute of Xinjiang Oil Exploration and Design, Karamay 834000, China.E-mail: [email protected]
Weitao Li
Research Institute of Xinjiang Oil Exploration and Design, Karamay 834000, China.
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