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Numerical modeling and formulation of the runup of seismically-induced surge waves in idealized reservoirs
Soil Dynamics and Earthquake Engineering ( IF 4 ) Pub Date : 2021-02-05 , DOI: 10.1016/j.soildyn.2021.106625
Xin Jin , Mi-An Xue , Pengzhi Lin

Accurate prediction of the runup of surge waves induced by seismic excitations in reservoirs is of great significance in engineering practices. Available literatures have separately identified the importance of the peak ground velocity and the frequency content of seismic record; however, additional parameters related to the reservoir dimension are also needed. A general formula considering those parameters has not yet been reported. In this study, the dominant parameters contributing mostly to the wave runup are identified through the combination of an in-house-code Navier-Stokes model and the wavelet transformation technique, then based on the dimensional analysis and present numerical results, a new formula accounting for those parameters, namely the peak ground velocity, frequency content of seismic record and reservoir dimension will be proposed to predict the maximal wave runup. The present formula is verified by comparisons among available results in literatures, and better predictions have been guaranteed than available formulas, implying it is applicable to optimize the design of parapet walls. Highlighted is that the most severe surge wave can be triggered by earthquake with low-dominant frequency and large peak ground velocity.



中文翻译:

理想储层地震激波激增数值模拟与公式化

准确预测储层中地震激发引起的激波激增在工程实践中具有重要意义。现有文献已经分别确定了峰值地速和地震记录频率内容的重要性。但是,还需要与储层尺寸有关的其他参数。尚未报告考虑这些参数的通用公式。在这项研究中,通过将内部代码Navier-Stokes模型与小波变换技术相结合,确定了对波上升起主要作用的主要参数,然后基于尺寸分析并给出了数值结果,提出了一种新的公式。对于那些参数,即峰值地面速度,将提出地震记录的频率含量和储层尺寸来预测最大波径。通过比较现有文献中的结果验证了本公式,并保证了比现有公式更好的预测,这表明它适用于优化护墙。突出的是,最主要的激波可以由低主导频率和大峰值地面速度的地震触发。

更新日期:2021-02-05
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