To develop more effective passive seismic methods and improved collaborative geophysical, geotechnical and engineering design studies, including involvement of industry partners from the engineering and open-cut mining enterprises
Monash University, School of Geosciences
University of Melbourne, Faculty of Engineering
University of Hong Kong, Faculty of Engineering
A Centre combining geoscience, civil engineering and structural engineering skills, to
Surface wave methods offer opportunity for passive seismic methodologies which are well-suited to use in urban areas where conventional seismic investigations are impractical.
Surface-wave methods yield shear-velocity information of soils, sand fill and rock, which is of direct importance in calculation of ease of excavation, site safety and relative site risk in the event of an earthquake.
Increased awareness of commercial and legal risk associated with site conditions means that measurement of geotechnical parameters is of increasing demand; direct studies using drill-holes or seismic cone penetrometer holes are invasive, costly, and limited in their ability to provide spatial sampling. Surface-wave methods are non-invasive and hence “environmentally friendly” as well as effective. Techniques are most strongly established in Japan, but their full potential is yet to be realised in the western world.
The Melbourne-Hong Kong research team has co-developed a new seismic attenuation modelling methodology which when integrated with the inexpensive passive shear wave velocity modelling technique, has the potential capability of developing realistic seismic attenuation models for regions with little or no earthquake data. There are substantial potential contributions from this collaboration to the modelling of seismic hazard worldwide.