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RESEARCH ON THE PROBABILISTIC ASSESSMENT OF POTENTIAL GROUND OFFSET ALONG ACTIVE FAULT
Author(s): 
Pages: 133-140
Year: Issue:  1
Journal: SEISMOLOGY AND GEOLOGY

Keyword:  活动断层地表潜在突发位移概率性评价;
Abstract: 目前跨活动断层的线状工程的抗断设防仍采用确定性评价方法,考虑的是最大位错量,与抗御灾害的风险设计的实际要求不相符.文中将断层上最大位错点的位置分布及最大位错点两侧的位错展布,与可产生地表突发位移的强震复发模型联合,建立了评估活动断层各部位的地表潜在突发位移的概率性评价方法.最后,以怀涿盆地北缘正断裂中的沈庄-长疃段为例,对其未来100a潜在突发位移的危险性做出定量评估,给出了断层段上各点不同超越概率水平下的潜在位移.这一研究结果,可为跨断裂的线型工程进行抗御地表潜在突发位移的风险设计提供参考.
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