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State of art of seismic design and seismic hazard analysis for oil and gas pipeline system

查看全文 作　　者：Aiwen Liu Kun Chen Jian [1]Wu 高影响力作者 机构地区：[1]Institute of Geophysics, China Earthquake Administration, Beijing 100081, China高影响力机构 出　　处：《Earthquake Science》索引2010年第23卷第3期,共5页高影响力期刊 基　　金：supported by the National Scientific and Technological support project MST (2006BAC13B02-0106);spe-cial research funds from the Public Institute of China,Institute of Geophysics (IGP),China Earthquake Ad-ministration (CEA) (DQJB06A01);The contribution No. is 10FE3004,IGP,CEA 摘　　要：The purpose of this paper is to adopt the uniform confidence method in both water pipeline design and oil-gas pipeline design.Based on the importance of pipeline and consequence of its failure,oil and gas pipeline can be classified into three pipe classes,with exceeding probabilities over 50 years of 2%,5% and 10%,respectively.Performance-based design requires more information about ground motion,which should be obtained by evaluating seismic safety for pipeline engineering site.Different from a city's water pipeline network,the long-distance oil and gas pipeline system is a spatially linearly distributed system.For the uniform confidence of seismic safety,a long-distance oil and pipeline formed with pump stations and different-class pipe segments should be considered as a whole system when analyzing seismic risk.Considering the uncertainty of earthquake magnitude,the design-basis fault displacements corresponding to the different pipeline classes are proposed to improve deterministic seismic hazard analysis(DSHA).A new empirical relationship between the maximum fault displacement and the surface-wave magnitude is obtained with the supplemented earthquake data in East Asia.The estimation of fault displacement for a refined oil pipeline in Wenchuan MS8.0 earthquake is introduced as an example in this paper. 关 键 词：seismic hazard assessment oil and gas pipeline fault displacement
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