会议专题

Application effects analysis on Rayleigh wave exploration in expressway soft roadbed investigation

Based on the principle of Rayleigh wave exploration method,this paper discussed detailedly the practical effects of applying the method to the expressway foundation investigation by an engineering example,In this paper,the dispersion curve was calculated by using the technique of neighboring trace instantaneous Rayleigh wave.More information was extracted and the lateral resolution was improved noticeably.The traditional Fourier transform was substituted by the logarithm integral here,which makes the frequency or depth interval can be given arbitrarily and so enhances the deep vertical resolution.Contrasted with drilling,static penetration and spot mining method,the wave velocity profile and the foundation beating capacity profile after reflection obtained by the instantaneous Rayleigh wave method were both accorded with the practical data better.Simultaneously,the method has the advantages of high efficiency,low energy and complete and continuous data acquirement.The method enhances not only the exploration efficiency,but also the vertical and lateral resolution.With the continuous development and improvement of the data processing analysis software,the future of the method will be brighter and brighter for the expressway soft roadbed investigation.

instantaneous Rayleigh wave soft clay foundation expressway investigation neighboring trace method

Xiaoyan Gao Yonghong Han Xiuzhong Li Wangshan Bai

Henan Expressway Development Co.Ltd.,Zhengzhou,450052,China Huanghuai University,Zhumadian,Henan 463000,China Henan Lutong Geophysical Science and Technology Development Ltd.,Zhengzhou,Henan 450006,China

国际会议

The 3rd International Conference on Environmental and Engineering Geophysics(第三届环境与工程地球物理国际会议)

武汉

英文

195-198

2008-06-15(万方平台首次上网日期,不代表论文的发表时间)