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关于有限断层计算模型的研究——考虑位错时、空不均匀分布的滑动时间函数 被引量:6

Study on Finite Fault Model for Calculation——Considering Slip-Time Function of Heterogeneous DisplacementDistribution in Temporal and Spatial Domain
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摘要 断层面上某一点的滑动时间函数需要用三个参数来表达:断层的平均位错量、上升时间和破裂传播的时间延迟。本文基于有限断层模型,根据断层面上每个子源的位错量时、空不均匀分布特征,采用Brune模型系统确定了相应滑动时间函数的三个参数,构建了位错量呈时、空不均匀分布的有限断层滑动模型。该方法可以表现破裂面上断层位错量在时间和空间上分布的不均匀特征,既能够表现震源的复杂性同时又能够简化震源模型的构建过程,为考虑断层附近的强地震动数值模拟计算提供了有效的途径。 For a point on fault,the slip-time function can be described by three parameters,the average displacement,rising time and time delay of wave propagation. In this paper, based on finite fault model,according to heterogeneons displacement distribution in temporal and spatial of the sub-source,the parameters of slip-time function are determined and the finit fault model with uniform displacements is presented. The method not only described the complexity of earthquake source but also simplified the finite fault model, which provided an effective input for numerical simulation of near-field strong ground motion.
出处 《西北地震学报》 CSCD 北大核心 2005年第3期193-198,共6页 Northwestern Seismological Journal
基金 国家"十五"科技攻关项目(2001BA601B02-02-03) 中国地震局兰州地震研究所论著编号:LC20050049
关键词 位错量 有限断层 滑动时间函数 震源参数 Displacement Finite Fault Slip-time function Source parameters
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参考文献9

  • 1Somerville P, K Irikula, R Grave,et al.Characterizing crustal earthquake slip models for the prediction of strong ground motions[J].Seism.Res.Lett.,1999,70(l):59-80.
  • 2Haiyun Wang,Xiaxin Tao.Relationship between moment magnitude and fault parameters:theoretical and semi-empirical relationships[J].Journal of Earthquake Engineering and Engineering Vibration,2003,2(2):201-211.
  • 3张冬丽,陶夏新,周正华.近场地震动格林函数的解析法与数值法对比研究[J].西北地震学报,2004,26(3):199-205. 被引量:7
  • 4Aki K, Richards P G. Quantitative Seismology Theory and Methods,Vols.l,2[M].San Francisco Freeman:1980.l-932.
  • 5Brune.Tectonic stress and the spectra of seismic shear waves from earthquakes[J].Journal Geophysical Research,1970,75(26),4997-5009.
  • 6Brad T, Aagaard.Finite-Element Simulation of Earthquake.In Partial fulfillment of requirements of the degree of philosophy,2000.California Institute of Technology, Pasadena, California.
  • 7Wang G Q,Boors D M,Igel H,et al. Some Observation on Collocated and Closely-spaced Strong Ground Motion Records of the 1999,Chi-Chi,Taiwan Earthquake[J].Bulletin of the Seismological Society of America. 2003,93(2):674-693.
  • 8王国新.强地震动衰减研究[D].中国地震局工程力学研究所,2000.
  • 9D J Wald,T H Heaton,K W Hudnut.The Slip History of the 1994 Northridge,California,Earthquake Determinedfrom Strong Ground Motion,Teleseismic,GPS,and Leveling Data[J].Bulletin of the Seismological Society of America,1996,86,49-70.

二级参考文献9

  • 1S H Harzell. Earthquake aftershocks as Green's function [J]. Geo.res. letters, 1978,5:1 - 4.
  • 2KIrikura. Semi - empirical estimation of strong ground motion during large earthquakes [J]. Bull. Disas. Prev. Inst., 1983,33:63-104.
  • 3K Irikura. Prediction of strong ground acceleration motions using empirieal Green's funotion [ A ]. in: Proc. 7th Japan earthquake engineering[C]. 1986.151 - 156.
  • 4J Boat wright. The seismic radiation from composite models of faulting [J]. Bull. Seism. Soc. Am., 1988, 78:489 -508.
  • 5K Dan, T Watanabe, T Tanaka. A Semi - empirical method to synthesize earthquake ground motions based on approximate source spectrum for far-field shear wave[A]. in: 9WCEE[C]. 1988.
  • 6H Kanamori, D C Jennings, D Helmberger. Estimation of strong ground motion in Mexico city[ A ]. in: 9WCEE[ C ]. 1988.
  • 7Bouchon M, Aki. Discrete wave number representation of seismic source wave fields[J]. Bull. Seism. Soc. Am. ,1977,67:259 -277.
  • 8Somerville P G. Characterizing earthquake slip models for the prediction of strong ground motion[A] . in: WCEE[C],2002.
  • 9David J Wald, Thomas H Heaton, K W Hudnut. The slip history of the 1994 Northridge, California, Earthquake determined from strong-motion. Teleseismie, GPS, and levelingdata[J]. Bull. Seism. Soc. Am. ,1996,86(1B) :S49-S70.

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