Signal processing method for shear wave velocity measurement  

作　　者：侯兴民 曲淑英 时向东 

机构地区：[1]Yantai University

出　　处：《Earthquake Engineering and Engineering Vibration》2007年第2期205-212,共8页地震工程与工程振动（英文刊）

基　　金：Pre-research Project of Yantai Unverity Under Project No. TM05B35;Shandong Natural Science Foundation Under Project No. bs08003 ;Key Foundation of Ministry of Education Under Project No. 207062

摘　　要：Soil shear wave velocity （SWV） is an important parameter in geotechnical engineering. To measure the soil SWV, three methods are generally used in China, including the single-hole method, cross-hole method and the surface-wave technique. An optimized approach based on a correlation function for single-hole SWV measurement is presented in this paper. In this approach, inherent inconsistencies of the artificial methods such as negative velocities, and too-large and too-small velocities, are eliminated from the single-hole method, and the efficiency of data processing is improved. In addition, verification using the cross-hole method of upper measuring points shows that the proposed optimized approach yields high precision in signal processing.Soil shear wave velocity （SWV） is an important parameter in geotechnical engineering. To measure the soil SWV, three methods are generally used in China, including the single-hole method, cross-hole method and the surface-wave technique. An optimized approach based on a correlation function for single-hole SWV measurement is presented in this paper. In this approach, inherent inconsistencies of the artificial methods such as negative velocities, and too-large and too-small velocities, are eliminated from the single-hole method, and the efficiency of data processing is improved. In addition, verification using the cross-hole method of upper measuring points shows that the proposed optimized approach yields high precision in signal processing.

关 键 词：shear wave velocity single-hole method correlation function optimized approach 

分 类 号：TU43[建筑科学—岩土工程]