研究液化的三维动力非线性有限元法  

THREE DIMENSIONAL DYNAMIC NONLINEAR FINITE ELEMENT METHOD FOR LIQUEFACTION ANALYSIS

作　　者：赵剑明[1] 张崇文[1] 王瑞永 毕政根[2] 

机构地区：[1]天津大学 [2]上海港湾工程设计研究院

出　　处：《天津大学学报》1997年第6期696-702,共7页Journal of Tianjin University(Science and Technology)

基　　金：天津市自然科学基金

摘　　要：提出结点等价体积和三维结点等价流量的概念，综合研究了孔隙水压力在地震过程中发展和消散，考虑了正应力、剪应力及循环次数等因素对其的影响．推导出液化问题的三维动力非线性有限元理论公式．实例分析说明理论推导正确，运算简捷，对工程有实用价值．In this paper the 3 Dimensional nodal equivalent volume and equivalent flow are put forward. The development and dissipation of porewater pressure in the seismal process have been researched, and normal stress, shear stress and cycle number are considered. By using these conceptions 3 Dimensional dynamic nonlinear finite element formula have been worked out. The results show that this liquefaction analysis is feasible and its compution is clear and quick, so it's of great value to engineering practice.

关 键 词：液化 动力非线性 有限元 砂土 

分 类 号：TU431[建筑科学—岩土工程]