Observation of a directed resonance in soil driven by transverse rock motion
Open Access
- 30 June 1989
- journal article
- Published by New Zealand Society for Earthquake Engineering in Bulletin of the New Zealand Society for Earthquake Engineering
- Vol. 22 (2) , 81-89
- https://doi.org/10.5459/bnzsee.22.2.81-89
Abstract
One component of horizontal ground acceleration recorded on flexible soil during the 1968 November 1 Cook strait earthquake is shown to be well modelled as a single degree of freedom oscillator excited by the recorded component of transverse acceleration in nearby bed rock. This is shown to be consistent with the cellular resonant mode hypothesis of seismic response of flexible soil. The mechanical oscillator is identified as a layer of fine-grained, post-glacial alluvium of approximately 20 m thickness.Keywords
This publication has 9 references indexed in Scilit:
- The Three-Dimensional Resonance of Axisymmetric Sediment-Filled ValleysSoils and Foundations, 1988
- Seismic response of a class of alluvial valleys for incidentSHwavesBulletin of the Seismological Society of America, 1988
- Seismic Cpt to Measure in Situ Shear Wave VelocityJournal of Geotechnical Engineering, 1986
- Wave propagation in a three-dimensional circular basinBulletin of the Seismological Society of America, 1983
- The seismic response of sediment-filled valleys. Part 1. The case of incidentSHwavesBulletin of the Seismological Society of America, 1980
- Seismic Site Response of Nonlinear Soil MediaJournal of the Geotechnical Engineering Division, 1978
- Cellular normal modes of alluvium responseBulletin of the New Zealand Society for Earthquake Engineering, 1975
- The Penetrometer and Soil ExplorationSoil Science, 1973
- A Simplex Method for Function MinimizationThe Computer Journal, 1965