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首页> 外文会议>Pipeline Division Specialty Conference; 20050821-24; Houston,TX(US) >Estimation of Allowable Fault Displacement for Pipelines and Countermeasures
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Estimation of Allowable Fault Displacement for Pipelines and Countermeasures

机译：管道允许故障位移的估计及对策

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Paper addresses the behavior of polyvinyl chloride and ductile iron pipeline due to fault displacement by Discrete Element Method (DEM) and an estimation method of allowable fault displacement. In modeling of pipe and joint, nonlinear material properties and nonlinear joint characteristics (allowing detachment at joint) are considered. Under the set of various conditions with pipe material, pipe diameter, crossing location and crossing angle, the allowable fault displacement to reach failure of the pipe is numerically simulated. The results show that narrow angle between fault line and pipeline provides unsafe condition for pipe. Furthermore, a simplified formula to estimate allowable fault displacement is proposed considering joint failures due to axial forces. Estimates from the simplified formula agree with simulation results. Finally, measures of installing pipeline with high performance joint are considered and these behaviors are discussed.
机译：论文通过离散元法（DEM）和允许断层位移的估算方法，探讨了聚氯乙烯和球墨铸铁管道由于断层位移而引起的行为。在管道和接头的建模中，考虑了非线性材料特性和非线性接头特性（允许接头处分离）。在管道材料，管道直径，交叉位置和交叉角度等各种条件下，对达到管道故障的容许断层位移进行了数值模拟。结果表明，断层管线与管道之间的狭窄角度为管道提供了不安全的条件。此外，考虑到轴向力引起的接头失效，提出了一个简化的公式来估算允许的故障位移。简化公式的估计与仿真结果一致。最后，考虑了采用高性能接头的管道安装措施，并讨论了这些行为。

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