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The Performance of Thames Water Pipeline at the Kullar Fault Crossing

机译:泰晤士河输水管道在库拉尔断层穿越中的性能

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摘要

This paper summarizes the earthquake performance of the welded steel Thames water transmission pipeline which was crossing the Kullar fault in the 1999 Kocaeli earthquake. The pipe suffered wrinkling damage at three locations (two major and one minor) due to net compression which was caused by the right lateral movement of the fault. However, it still managed to stay in service in the aftermath of the earthquake. It is known to be one of the best documented pipe failure cases due to fault displacement hazard. A 3D nonlinear analysis of the pipe-soil interaction system is utilized to investigate the effects of both native and artificial backfill soils. The failure mode and limit state of pipe for compressive and tensile strains are mentioned. The rotation and displacement demands at the wrinkles due to incrementally applied fault displacements are calculated. Results are compared with the field observations. Recommendations are provided to mitigate earthquake risk and for safe operation of similar critical infrastructures against fault displacement hazards.
机译:本文总结了1999年科贾埃利地震中穿越库拉断裂的泰晤士河钢制输水管道的抗震性能。由于断层的右侧移动导致净压缩,该管在三个位置(两个主要和一个次要)遭受了皱纹破坏。但是,在地震发生后,它仍然可以继续使用。由于存在断层位移危险,这是记录在案的最好的管道故障案例之一。利用管-土相互作用系统的3D非线性分析来研究天然和人工回填土的影响。提到了管的压缩和拉伸应变的失效模式和极限状态。计算了由于逐渐施加的断层位移而引起的褶皱处的旋转和位移需求。将结果与现场观察结果进行比较。提供建议以减轻地震风险,并确保类似的关键基础设施的安全运行以防止断层位移的危害。

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  • 会议地点 Shanghai(CN)
  • 作者单位

    Kandilli Observatory and Earthquake Research Institute, Dept. of Earthquake Engineering, Bogazici Univ., P.O. Box 34684, Cengelkoy, Istanbul;

    Dept. of Civil Engineering, Engineering Faculty, Alanya Alaaddin Keykubat Univ., P.O. Box 07425, Alanya, Antalya;

    Dept. of Civil and Environmental Engineering, Rensselaer Polytechnic Institute, P.O. Box 12180-3590, 110 Eighth St., Troy, NY.;

    Dept. of Architecture, Faculty of Architecture, Yildiz Technical Univ., P.O. Box 34349, Besiktas, Istanbul;

    Dept. of Earthquake and Structural Engineering, Gebze Technical Univ., P.O. Box 141-41400, Gebze, Kocaeli;

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