摘要
讨论了高阶模态面波位移幅度占优势并由于高阶模态面波的影响、难以提取完整的基阶模态面波的频散曲线的情况下,利用"最大模"频散曲线进行反演解释的必要性.对软夹层型和地表为高速层两种高阶模态面波位移幅度较强的地层结构的理论和实测"最大模"频散曲线进行反演研究,获得了比仅利用基阶模态面波解释更好的效果.同时还讨论了初始模型建立和反演方法等问题.
It is discussed high-mode Rayleigh wave that the necessity of inversion explanation energy is dominant and difficult to get the with max-mode dispersion curve when the fundamental-mode dispersion curves. It is shown that the inversion effects of max-mode are better than that of fundamental mode by theoretical inversion modeling and field datum inversion of max-mode dispersion curves of two kinds of high modes dominates layer structure such as low velosity model and pavement systems model. Initial model creation and inversion method are discussed.
出处
《桂林工学院学报》
北大核心
2007年第3期322-328,共7页
Journal of Guilin University of Technology
基金
广西自然科学基金资助项目(桂科自04477094)
广西高校"地质资源与地质工程"人才小高地建设项目(桂教人[2005]80)
关键词
瑞利面波勘探
基阶模态
高阶模态
拟牛顿算法
“最大模”频散曲线反演
Rayleigh wave prospecting method
fundamental mode
high modes
Quasi-Newton method
inversion of max-mode dispersion curves
