Experimental comparison of active seismic surface wave tests on shallow and deep bedrock sites

Loading...
Thumbnail Image

Authors

Ntaote, Mosito
Heymann, Gerhard

Journal Title

Journal ISSN

Volume Title

Publisher

South African Institution of Civil Engineering

Abstract

Active seismic surface wave tests are tests during which signals are generated by artificial sources such as sledgehammers, drop weights and fixed or variable frequency shakers. A number of active seismic surface wave tests have become popular in the geotechnical industry. Interestingly, different surface wave tests are popular in different regions of the world, presumably because the tests require different equipment, expertise and numerical analysis techniques. Few studies have been done to compare seismic surface wave tests directly. This study investigated the performance of three active seismic surface wave tests, namely the spectral analysis of surface waves (SASW), multi-channel analysis of surface waves (MASW) and continuous surface wave (CSW) tests. This paper reports the performance of the three tests with regard to repeatability, susceptibility to near-field effects, and maximum and minimum measurement depths at both a shallow and a deep bedrock site.

Description

Keywords

Near-field effects, Measurement depth, Spectral analysis of surface waves (SASW), Multi-channel analysis of surface waves (MASW), Continuous surface wave (CSW), SDG-09: Industry, innovation and infrastructure

Sustainable Development Goals

SDG-09: Industry, innovation and infrastructure

Citation

Ntaote, M.C. & Heymann, G.. Experimental comparison of active seismic surface wave tests on shallow and deep bedrock sites. Journal of the South African Institution of Civil Engineering 2023: 65(3), Art. #1519, 12 pages. http://dx.DOI.org/10.17159/2309-8775/2023/v65n3a3.