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考虑非线性的建筑物地基地震液化简化分析方法
A simplified method for evaluating liquefaction of building’s subsoil with consideration of nonlinear constitutive relationship
【摘要】 本文在建筑物地基地震液化总应力简化判别方法的基础上,考虑地基土壤的剪切非线性及饱和砂 土Martin非线性孔压增长模型,提出了估计建筑物地基孔压增长的简化分析方法,这一方法可用来判 别地基的初始液化问题。
【Abstract】 In this paper, based on the simplified method of total stress for seismic liquefaction of building’s subsoil and combined with nonlinear constitutive relationship of soils and Martin’s model of pore water pressure, a simplified method is suggested for evaluating pore water pressure of building’s nonlinear subsoil. The method could be applied to analyze liquefaction potential of subsoil of building, directly in terms of pore pressure ratio.
【关键词】 建筑物地基;
锥体模型;
非线性;
孔隙水压;
液化;
【Key words】 subsoil of buildings; cone model; nonlinear; pore water pressure; seismic liquefaction;
【Key words】 subsoil of buildings; cone model; nonlinear; pore water pressure; seismic liquefaction;
【基金】 国家自然科学基金资助项目(5008001);中国地震局“九五”攻关项目(95—05—02—03—02)
- 【文献出处】 地震工程与工程振动 ,Earthquake Engineering and Engineering Vibration , 编辑部邮箱 ,2001年02期
- 【分类号】TU435
- 【被引频次】7
- 【下载频次】122