匀质软夹层地基瑞利波弥散特性  

Rayleigh Wave Dispersion in Soil Profiles Where a Softer Layer is Trapped between Harder Layers

作　　者：夏唐代[1] 陈云敏[1] 吴世明[1] 

机构地区：[1]浙江大学土木工程系,杭州310027

出　　处：《振动工程学报》1993年第1期42-50,共9页Journal of Vibration Engineering

基　　金：国家自然科学基金

摘　　要：本文利用有限单元法和解析法推导了求解上软下硬地基、夹层地基及道路结构瑞利波弥散曲线及位移分布的计算公式.得到了兼有有限单元法计算简单及解析法精度高之优点的计算方法,且编制了相应的计算机程序.并着重讨论了匀质软夹层地基瑞利波的弥散特性.The formulation of determining Rayleigh wave dispersion curves and displacement shapes in regular layered soils,intercalary soils and pavement structures is developed in this paper. The authors present algorithm with both calculating simplicity of finite element method and high accuracy of analytical method and also present its computer program. The Rayleigh wave dispersion characteristic in soil profiles where a softer layer is trapped between harder ones is emphatically discussed.

关 键 词：瑞利波 弥散曲线 特征方程 地基 夹层 

分 类 号：TU435[建筑科学—岩土工程]