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In order to improve the accuracy of numerical simulation of temperature and moisture transfer in the subsoil of building ,some parameters of solid phase ,liquid phase and gas phase, affecting heat and moisture transfer ,are totally taken into consideration . Especially, the artificial boundary conditions are studied and compared. 计算建筑物地基土壤温度场和湿度场时 ,引入离散人工边界条件 ,并专门对人工边界的处理方法进行了研究与讨论 ,旨在使得对有建筑物的地基土壤温度场和湿度场的计算方法和结果更加合理。 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. 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。 The modulus degeneration of sand is thought as one of characters of dynamical nonlinear to analyze the seismic liquefaction of subsoil of building. Based on the total stress method ,a cone model theory by Wolf and Meek, combined with the model of pore water pressure generation presented by Martin ,is introduced to simplify the interaction of soil-structure and calculate the dynamical stress field of subsoil , so that pore water pressure under the building can be evaluated directly, an effective... The modulus degeneration of sand is thought as one of characters of dynamical nonlinear to analyze the seismic liquefaction of subsoil of building. Based on the total stress method ,a cone model theory by Wolf and Meek, combined with the model of pore water pressure generation presented by Martin ,is introduced to simplify the interaction of soil-structure and calculate the dynamical stress field of subsoil , so that pore water pressure under the building can be evaluated directly, an effective stress method is suggested to evaluate liquefaction potential of building抯 subsoil. 在分析建筑物地基的地震(或振动)液化时,为了简化分析土壤-地基的动力相互作用,引入Cone模型,在总应力分析的方法基础上,结合了Martin等提出的孔隙水压力发展模型,并且考虑土壤发生液化的动力非线性过程中材料刚度退化的影响,提出了可以直接求解各区域的孔隙水压力的有效应力简化分析法,并进行液化可能性判别。
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