Comparative Analysis by Numerical Simulation on Natural Gas Pipeline in Different Positions of Landslide

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原文链接

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外文摘要：The sliding impact on pipeline across landslide was analyzed by numerical simulation。 Two cases of landslides along the Sichuan to East gas pipeline were simulated， with pipeline in the front or in the rear of landslide respectively。 The mechanics numerical simulation model was established by ANSYS finite element analysis software and the pipeline stress and strain were simulated by using the FLAC~(3D) software。 Comparative analysis was carried out to the critical stress and displacement of pipeline under the loading of landslide in the two situations。 Results show that， when the pipes across the landslide， the maximum deformation appears in the middle part of the pipe and the maximum stress appears at its two ends。 The two ends of the pipeline are prone to be damage。 Yield damage is easier to occur in the pipe crossing the front of a landslide; and the damage risk of pipe is relatively lower when pipeline is buried across the rear of a landslide。

外文关键词：

LandslideNatural Gas PipelineStressDeformationNumerical Simulation

作者：

Rui Wu、Yonggui Mei、Qinglu Deng、Chengli Pang、Min Fu

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作者单位：

Engineering Faculty, China University of Geosciences, No.388, Lumo Road, Wuhan 430074

Shanxi Coal-bed Gas Branch, Huabei Oilfield Company, Jincheng 048000

会议名称：

International conference on pipelines and trenchless technology

会议地点：

Xiamen(CN)

会议母体文献：

International conference on pipelines and trenchless technology 2014

页码：

308-319

出版时间：

2014