Probabilistic characterization of seismic ground deformation due to tectonic fault movements
Probabilistic characterization of seismic ground deformation due to tectonic fault movements
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构造断层运动引起的地震地面变形的概率表征
DOI:
10.1016/j.soildyn.2017.05.039
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发表时间:
2017
影响因子:
4
通讯作者:
Goda K
中科院分区:
文献类型:
--
作者:
Goda K
Tectonic ground deformations in the near-fault region cause major damage to buildings and infrastructure. To characterize ground deformation demands on structures, a novel stochastic approach to evaluate the ground deformations of tectonic origin is developed by combining probabilistic models of earthquake source parameters, synthetic earthquake slip models, and Okada equations for calculating the deformation field due to a fault movement. The output of the method is the probability distribution of ground deformations at a single location or differential ground deformations between two locations. The derived probabilistic models can be employed as input to advanced structural models and analyses. The method is illustrated for the 16 April 2016 Kumamoto earthquake in Japan. By comparing simulated ground deformations with observed deformations at multiple sites, a set of refined source models is first derived and then used to investigate the detailed earthquake characteristics of the event and to develop probability distributions of tectonic ground deformations at target sites.
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DOI:
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