摘要
基于三维非轴对称饱和弹性土层动力响应分析的基本解 ,推导出有限厚饱和土层和饱和半空间精确动力刚度矩阵 ,再由层间内界面连续条件建立三维非轴对称分层饱和土体总刚方程。该方法不要求对土体自然层 (有限厚度 )作薄层离散 ,也可方便处理层内荷载的影响 ;总刚方程可直接用于计算边界元法中边界积分方程要求的影响函数 ( GREEN函数 )。
Based on the fundamental solutions of governing dynamic equations of the 3 D non axisymmetric saturated soils,a layered saturated stiffness matrix and a saturated half space stiffness matrix are derived exactly.The global stiffness equation of a multi layered half space is assembled by using the layer and half space stiffness matrices on the basis of continuity of tractions and fluid flow at layer interfaces,which would not need to disperse the natural layered soils (finite thickness),and it is easy to deal with in layer loading in global stiffness equation,and the GREEN's functions needed by boundary integral equation in boundary element method can be obtained directly by means of global stiffness equation.
出处
《西安公路交通大学学报》
CSCD
北大核心
2001年第1期6-8,48,共4页
Journal of Xi'an Highway University
基金
国家自然科学基金资助项目! (5 96780 0 3 )
