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Robust Earthquake Site Classification Assessment At Ontario Bridge Sites., Alex Bilson Darko
Robust Earthquake Site Classification Assessment At Ontario Bridge Sites., Alex Bilson Darko
Electronic Thesis and Dissertation Repository
Canadian seismic design guidelines classify subsurface ground conditions based on the average shear-wave velocity (VS) of the upper 30 meters (VS30). We seek to optimize a robust earthquake site classification procedure for Ontario bridge sites, assessed primarily from blind comparison of non-invasive VS depth profiling techniques. Non-invasive seismic testing is performed at 10 bridge sites in southern Ontario co-located with invasive penetration and/or borehole VS measurements. Non-invasive surface wave dispersion and site amplification functions are jointly inverted to retrieve VS profiles at each site. A general correlation between corrected VS and cone …