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关于“用单元降刚法探索中国大陆强震远距离跳迁及主体活动区域转移”的讨论——横向各向同性“杀伤单元”才是更好的途径

DOI: 10.6038/cjg20130633, PP. 2133-2139

Keywords: 有限元,降刚,剪切模量,横向各向同性,杀伤单元

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Abstract:

《地球物理学报》第55卷第1期的"用单元降刚法探索中国大陆强震远距离跳迁及主体活动区域转移"一文提出用减小剪切模量的方法模拟地震断层错动的效应,这种处理虽然可以模拟压扭性走滑断层错动时的剪应力降低,但会导致垂直于断层的正应力也剧烈变化,因此这种简单的减小弹性模量的方法并不合理.本文探讨了一种更好的方法——横向各向同性"杀伤单元",利用该方法模拟断层滑动效应得到了较为合理的结果,与Okada解析解吻合较好,能够正确反映断层滑动时的应力变化.

References

[1]  杨树新, 陆远忠, 陈连旺等. 用单元降刚法探索中国大陆强震远距离跳迁及主体活动区域转移.地球物理学报, 2012, 55(1): 105-116. Yang S X, Lu Y Z, Chen L W, et al. The mechanism of long-distance jumping and the migration of main active areas for strong earthquakes occurred in the Chinese continent. Chinese J. Geophys. (in Chinese), 2012,55(1):105-116.
[2]  阎波, 方云. 基于ANSYS的边坡开挖模拟. 山西建筑, 2008, 34(1): 93-94. Yan B, Fang Y. Simulation of slope excavation based upon ANSYS. Shanxi Architecture (in Chinese), 2008,34(1):93-94.
[3]  Slawinski M A. Waves and Rays in Elastic Continua: 2nd Ed. World Scientific, 2007.
[4]  Okada Y. Surface deformation due to shear and tensile faults in a half-space. Bulletin of the Seismological Society of America, 1985, 75(4): 1135-1154.
[5]  Wang R, Martin F L, Roth F. Computation of deformation induced by earthquakes in a multi-layered elastic crust-FORTRAN programs EDGRN/EDCMP. Computers & Geosciences, 2002, 29(2): 195-207.
[6]  谢海国, 章广成, 杨昌斌. 边坡分级开挖过程的动态模拟. 土工基础, 2007, 21(3): 54-56. Xie H G, Zhang G C, Yang C B. Achievement of dynamic simulation of excavation of slope in a hydropower station. Soil Eng. and Foundation (in Chinese), 2007,21(3): 54-56.
[7]  Lu Y, Yang S, Chen L, et al. Mechanism of the spatial distribution and migration of the strong earthquakes in China inferred from numerical simulation. Journal of Asian Earth Sciences, 2011, 40(4): 990-1001.
[8]  陆远忠, 叶金铎, 蒋淳等. 中国强震前兆地震活动图像机理的三维数值模拟研究. 地球物理学报, 2007, 50(2): 499-508. Lu Y Z, Ye J D, Jiang C, et al. 3D numerial simulation on the mechanism or precursory seismicity pattern before strong earthquake in China. Chinese J. Geophys. (in Chinese), 2007,50(2): 499-508.
[9]  Lakes R S. Foam structures with a negative Poisson''s ratio. Science, 1987, 235(4792): 1038-1040.图7 用横向各向同性介质消减G21模拟断层滑动的计算结果 (a)ΔUx; (b)ΔUy; (c)Δσxy; (d)Δσxx. Fig.7 The result of simulation fault slipping with the method of reducing G21 in the transverse isotropic material

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