caa a22 4500 477080626 CHVBK 20180405111448.0 cr unu---uuuuu 170330e19960601xx s 000 0 eng 10.1007/BF00729136 doi (NATIONALLICENCE)springer-10.1007/BF00729136 Al-Hunaidi M. Institute for Research in Construction, National Research Council of Canada, K1A 0R6, Ottawa, Canada aut Nondestructive evaluation of pavements using spectral analysis of surface waves in the frequency wave-number domain [Elektronische Daten] [M. Al-Hunaidi] The potential of using Spectral analysis of surface waves (SASW) for nondestructive testing of pavement and soil sites has been demonstrated in several publications. The usual SASW field testing and data analysis procedures and the assumption of a single propagation mode yield accurate results when there are no sharp changes in the stiffness of the site with depth. When this is not the case, however, difficulties arise in the interpretation of experimental data due to the participation of more than one mode in the wave field. In an earlier study, the multiple filter/crosscorrelation technique was suggested for analyzing multi-mode SASW signals. This technique, however, may not yield accurate results when propagation modes are closely spaced. A more general method using spectral analysis in the frequency wave-number domain is presented in this paper. Formulas are presented for determining a reasonably small number of surface measurements, and the accuracy of this method in resolving experimental dispersion curves is demonstrated for a pavement site. Plenum Publishing Corporation, 1996 SASW nationallicence surface waves nationallicence wave propagation nationallicence nondestructive evaluation nationallicence pavements nationallicence soils nationallicence Journal of Nondestructive Evaluation Kluwer Academic Publishers-Plenum Publishers 15/2(1996-06-01), 71-82 0195-9298 15:2<71 1996 15 10921 https://doi.org/10.1007/BF00729136 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00729136 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Al-Hunaidi M. Institute for Research in Construction, National Research Council of Canada, K1A 0R6, Ottawa, Canada aut NATIONALLICENCE 773 0- Journal of Nondestructive Evaluation Kluwer Academic Publishers-Plenum Publishers 15/2(1996-06-01), 71-82 0195-9298 15:2<71 1996 15 10921 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer