地震对粉土液化深度影响的FLAC~(3D)分析
摘要
过去对地震引起粉土液化方面的研究还不完善,本文通过利用有限差分软件FLAC3D,解决了如何分析初始静力平衡、设置边界条件和动力响应等问题,并对地震荷载下的粉土路基进行了详细的动力分析。最终得到不同烈度的地震荷载下的超静孔隙水压力、有效应力和超孔压比时程曲线,由此判断可能造成的粉土最大液化深度。该方法为利用FLAC3D求解粉土液化深度问题提供了范例。
引文
[1]汪闻韶.土的动力强度和液化特性.北京:中国电力出版社,1997.
[2]黄博.粉土和粉砂的动力特性及地震液化研究.杭州:浙江大学,2000.
[3]阮永芬,巫志辉.饱和粉土的若干动力特性研究.岩土工程学报,1995,17(4):100-106.
[4]Dobry R,Powell DJ.Liquefaction potential of saturated sand—the stiffness method.Proceedings of seventh world conference on earth-quake engineering,1980(3):25-32.
[5]StokoeⅡ,K.H.,Roesset,J.M.Bierschwale,J.G.et al.Liquefaction potential of sands from shear wave velocity.Proceedings of ninth world conference on earthquake engineering,Tokyo,1988(3):213-218.
[6]Tolimatsu K.Soil liquefaction on evaluation by elastic shear moduli.Soils and Foundations,1986,26(1):25-35.
[7]Tokimatsu K.Correlation between liquefaction resistance and shear wave velocity.Soils and Foundations,1990,30(2):33-42.
[8]于濂洪,王波.饱和粉土振动孔隙水压力的试验研究.大连大学学报,1999,20(4):59-62.
[9]于洪治.饱和粉土振动孔隙水压力发展规律.第四届全国土动力学学术会议论文集,浙江大学出版社,1994.
[10]刘耀儒,刘元高,周维垣,等.应用FLAC方法进行动力分析.岩石力学与工程学报,2001,20(2):1518-1522.
[2]黄博.粉土和粉砂的动力特性及地震液化研究.杭州:浙江大学,2000.
[3]阮永芬,巫志辉.饱和粉土的若干动力特性研究.岩土工程学报,1995,17(4):100-106.
[4]Dobry R,Powell DJ.Liquefaction potential of saturated sand—the stiffness method.Proceedings of seventh world conference on earth-quake engineering,1980(3):25-32.
[5]StokoeⅡ,K.H.,Roesset,J.M.Bierschwale,J.G.et al.Liquefaction potential of sands from shear wave velocity.Proceedings of ninth world conference on earthquake engineering,Tokyo,1988(3):213-218.
[6]Tolimatsu K.Soil liquefaction on evaluation by elastic shear moduli.Soils and Foundations,1986,26(1):25-35.
[7]Tokimatsu K.Correlation between liquefaction resistance and shear wave velocity.Soils and Foundations,1990,30(2):33-42.
[8]于濂洪,王波.饱和粉土振动孔隙水压力的试验研究.大连大学学报,1999,20(4):59-62.
[9]于洪治.饱和粉土振动孔隙水压力发展规律.第四届全国土动力学学术会议论文集,浙江大学出版社,1994.
[10]刘耀儒,刘元高,周维垣,等.应用FLAC方法进行动力分析.岩石力学与工程学报,2001,20(2):1518-1522.
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