The Application of Adjacent-Channel Transient Rayleigh Wave Method in Cave Exploration in Loess Area
This text briefly describes the working principle of adjacent-channel transient Rayleigh Wave method,introduces in detail the extracting method of Rayleigh Wave and adjacent-channel calculation method of dispersion curve,combined with the example of loess area cave exploration.The contrast test of theory and engineering project indicates: the result will be better if extracting the Rayleigh Wave in theτ - p and time-space domain,which is obviously improved compared to the traditional f - K domain filtering and enhanced the reliability of exploration results.The adoption of calculation frequency dispersion curve eliminated the average effect of multi-channel transient Rayleigh wave method and advanced the transverse resolution of Rayleigh wave method and can truly reflect the horizontal local anomalies in the relatively small size of the underground area.By enhancing the resolving power of the low frequency stage of dispersion curve,the longitudinal resolution of Rayleigh wave method and the resolving power of longitudinal local anomalies have been improved.As a result,the location and depth of underground cave distribution are predicated accurately.
Transient Rayleigh wave Adjacent-channel Transverse resolution longitudinal resolution
Guoyin Shen Baoquan Shi Xiuzhong Li Shili Guo Gongzheng Dai
Henan Highway Development Limited Liability Company, Zhengzhou, PRC Huanghai University, Zhumadian, PRC China University of Geosciences, Wuhan, PRC
国际会议
长沙
英文
514-519
2012-06-15（万方平台首次上网日期，不代表论文的发表时间）