| 地震裂缝错位作用时埋地管道的有限元分析 |
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| 引用本文： | 张进国,吕英民.地震裂缝错位作用时埋地管道的有限元分析[J].油气储运,1997(2). |
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| 作者姓名： | 张进国 吕英民 |
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| 作者单位： | 石油大学 北京
(张进国)，石油大学 北京(吕英民) |
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| 摘 要： | 地震作用可引起地层沉陷、土壤液化、地层裂缝错位,对埋地管道有很大的破坏作用,为保障管道安全运行,必须开展管道抗震研究,使埋地管道能抵御一定烈度的地震力。分析地震裂缝错位对埋地管道的作用,根据最小势能原理,推导出在地震裂缝错位作用下埋地管道的有限元方程,利用该方程可计算埋地管道在地震裂缝错位作用下的位移、内力及应力,并提供了计算实例。
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| 关 键 词： | 埋地管道 防震设计 有限元法 计算方法 |
The Finite Element Analysis on the Buried Pipeline Under the Effect of Seismic Ground Crack |
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| Zhang Jinguo Lu Yingmin.The Finite Element Analysis on the Buried Pipeline Under the Effect of Seismic Ground Crack[J].Oil & Gas Storage and Transportation,1997(2). |
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| Authors: | Zhang Jinguo Lu Yingmin |
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| Institution: | Zhang Jinguo Lu Yingmin |
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| Abstract: | Earthquake can give rise to settlement of ground,soil liquification and ground crack, which will destroy the buried pipelines. To ensure a safe operation for pipeline,the study on the earthquake must be carried out to keep the buried pipeline withstand the earthquake force with a certain intensity. The effect of seismic ground crack on buried pipeline is analyzed,and the finite element equations applied on the buried pipeline under the effect of seismic ground crack have been obtained by the principle of minimum potential energy. These equations can be used to calculate the displacement,internal force and stress of the buried pipeline under the effect of seismic ground crack,and some calculating cases are introduced. |
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| Keywords: | buried pipeline anti-seismic design finite element method calculation method |
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