利用瑞利波速度弥散特性反演地基参数  

Inversion of Soil Parameters Using Rayleigh Wave Velocity Dispersion Characteristic

作　　者：夏唐代[1] 陈云敏[1] 吴世明[1] 

机构地区：[1]浙江大学

出　　处：《振动工程学报》1991年第4期31-37,共7页Journal of Vibration Engineering

摘　　要：文献[1]利用有限元与半无限元相结合的方法已能精确有效地计算成层地基R波速度的理论弥散曲线.在此基础上,本文利用阻尼最小二乘法推导了R面波法反分析成层地基土的有关参数的公式,给出了应用实测的R波弥散曲线反演土层参数的方法,并编制了相应的计算机程序.最后,通过计算实例验证了本文方法的可靠性和实用性.The Rayleigh wave dispersion curve in a layered soil can be accurately and effectively generated by the combined finite element and semi-infinite element method given in reference [1]. Based on it, the formulation of backcalculating soil parameters of layered soils using Rayleigh wave method is developed by using the damped least square method. The method of inversing soil parameters from the measured Rayleigh wave dispersion curve is presented and its computer program is written. The applicability and the availability of the presented method are confirmed by numerical examples.

关 键 词：弥散曲线 特征方程 最小二乘法 

分 类 号：O241.2[理学—计算数学]