Scott A. Ashford

TL;DR: In this article, a frequency-domain parametric study using generalized consistent transmitting boundaries has been performed to evaluate the significance of topographic effects on the seismic response of steep slopes, and the results show that the peak amplification of motion at the crest of a slope occurs at a normalized frequency H /λ = 0.2, where H is the slope height and λ is the wavelength of the motion.

TL;DR: In this paper, the authors evaluated the seacliff and coastal gully beach-sediment contributions to the Oceanside Littoral Cell using airborne LIght Detection And Ranging (LIDAR).

TL;DR: In this article, a load test was performed on a full-scale pile group following blast-induced liquefaction to evaluate pile-soil-pile interaction effects, and the lateral resistance of each pile in the group was similar and about the same as that for the single pile test.

TL;DR: In this article, the effect of inclined shear waves on the seismic response of a steep bluff is analyzed using generalized consistent transmitting boundaries, and the results of the frequency-domain analysis of a stepped half-space subjected to incident shear wave inclined from 0° to 30° show that the motion at the crest of the slope is amplified for waves travelling into the slope and attenuated for waves traveling away from the slope, as compared to the motion in the free field behind the slope.

TL;DR: The 2010 Darfield earthquake was geotechnical in nature, with liquefaction and lateral spreading being the principal culprits for the inflicted damage in areas close to major streams, rivers and wetlands as mentioned in this paper.