A Seismic Design Method for Subsea P

A Seismic Design Method for Subsea Pipelines Against Earthquake Fault Movement

Abstract：As there are no specific guidelines on design of subsea pipelines crossing active seismic faults, methods for land buried pipelines have been applied to. Taking the large seismic fault movement into account, this paper proposes improved methods for seismic designs of subsea pipelines by comprehensively investigating the real constraining of soil on the pipelines, the interaction processes of soil with the pipeline, the plastic slippage of the soil, and the elastic-plastic properties of the pipeline materials. New formulas are given to calculate the length of transition section and its total elongation. These formulas are more reasonable in mechanism, and more practical for seismic design of subsea pipelines crossing active faults. 作者： Author： DUAN Meng-lan[1]  MAO Dong-feng[2]  YUE Zhi-yong[3]  Segen Estefen[4]  LI Zhi-gang[5] 作者单位： Offshore Oil/Gas Research Center, China University of Petroleum, Beijing 102249, China;School of Mechanical Engineering, Yangtze University, Jingzhou 434023, ChinaOffshore Oil/Gas Research Center, China University of Petroleum, Beijing 102249, ChinaDepartment of Mechanics and Engineering, Peking University, Beijing 100871, ChinaCOPPE, Federal University of Rio de Janeiro, RJ 68501 BrazilCOOEC, Tianjin 300452, China 期 刊： 中国海洋工程(英文版)   ISTICEISCI Journal： CHINA OCEAN ENGINEERING 年，卷(期)： 2011, 25(2) 分类号： P756.2 Keywords： subsea pipeline    seismic design    permanent fault movement    机标分类号： P31 P22 机标关键词： Fault Movement    methods for    seismic design    plastic    fault movement    active    interaction    processes    practical    improved    account    total    paper    New 基金项目： The paper was financially supported by the National Natural Science Foundation of China，the National High Technology Research and Development Program of China，the China National Offshore Oil Corporation

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