Liquefaction Risk Evaluation Modelling for Hawkes Bay Region, New Zealand


Abstract eng:
The significance of liquefaction induced damage during earthquake attack was clearly demonstrated during the Canterbury Earthquake Sequence [1] and resulted in the need for a uniform approach to be made to evaluate liquefaction hazard to provide a consistent basis for applying future building and land-use planning controls to mitigate or avoid any such future recurrence of the losses generated across Canterbury. This paper outlines the approach used to evaluate the risk from liquefaction to the Hawkes Bay Region on the east coast of New Zealand's North Island. Two concurrent strands of work are reported, namely the identification of the liquefaction hazard under hazard various severities of shaking, and the potential losses and consequences of damage resulting therefrom. Determination of the liquefaction hazard involved the creation of liquefaction hazard zones based on their geomorphic characteristics, the crustal thickness (depth to groundwater) and the near-surface geotechnical profile (composition and density profiles). The potential losses were derived using the RiskScape regional risk evaluation tool with the building and infrastructural presence within the community being depicted within a GIS environment, and their vulnerability to both shaking and differential ground deformation assigned from known or assumed key attributes.

Contributors:
Conference Title:
Conference Title:
16th World Conference on Earthquake Engineering
Conference Venue:
Santiago (CL)
Conference Dates:
2017-01-09 / 2017-01-13
Rights:
Text je chráněný podle autorského zákona č. 121/2000 Sb.



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 Record created 2017-01-18, last modified 2017-01-18


Original version of the author's contribution as presented on USB, paper 2970.:
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