| 山区输气管道应力降低方法研究 |
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| 引用本文： | 李汀,吴世娟,黄坤,陈晓晓,刘耔麟,卢泓方.山区输气管道应力降低方法研究[J].管道技术与设备,2014(3):7-8,11. |
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| 作者姓名： | 李汀 吴世娟 黄坤 陈晓晓 刘耔麟 卢泓方 |
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| 作者单位： | [1]四川科宏石油天然气工程有限公司,四川成都610213 [2]西南石油大学石油与天然气工程学院,四川成都610500 [3]南加利福尼亚大学维特比工程学院,加利福尼亚洛杉矶CA90089 |
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| 摘 要： | 长输管道途经山区地段,由于管道落差较大,管道受集中应力影响,易发生失效破坏。采用阶梯型的敷管方式,可有效降低管道的应力值。使用CAESAR II软件对山区某低支架敷设的输气管道进行应力分析,得出采用阶梯型敷设的管道平均应力较沿斜坡直接敷设的管道低,且随阶数增多,平均应力有所降低,有效验证了阶梯型的敷管方式使山区大落差管道安全性增高。
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| 关 键 词： | 应力分析 阶梯型敷设 输气管道 CAESAR II |
Research on Stress Reduction Measures in Mountainous Area |
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| LI Ting,WU Shi-juan,HUANG Kun,CHEN Xiao-xiao,LIU Zi-lin,LU Hong-fang.Research on Stress Reduction Measures in Mountainous Area[J].Pipeline Technique and Equipment,2014(3):7-8,11. |
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| Authors: | LI Ting WU Shi-juan HUANG Kun CHEN Xiao-xiao LIU Zi-lin LU Hong-fang |
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| Institution: | 1. Siehuan Kehang Petroleum and Natural Gas Engineering Co., Ltd., Chengdu 610213, China; 2. School of Petroleum Engineering, Southwest Petroleum University, Chengdu 610500, China; 3. Viterbi School of Engineering, University of Southern California, Los Angeles CA90089, America) |
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| Abstract: | Long-distance pipelines passing through mountains,due to the larger gap,especially pipeline under some concentrated stress,are prone to failure damage. Use a ladder-type pipe laying method can effectively reduce the stress level of the pipe. The stress of a mountain pipeline using CAESAR II is analyzed and a conclusion is drawn that the average stress of the laddertype laying pipeline is less than that of a pipeline laid along the slope directly. With the increase of the number of stairs,the average stress decreases. The analytic results show that a multistep laying pipeline has higher security for the big drop pipeline in a mountainous area. |
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| Keywords: | stress analysis ladder-type laying gas pipeline CARSAR Ⅱ |
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