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Liquefaction effects and associated damages observed at the Wellington CentrePort from the 2016 Kaikoura earthquake
Widespread liquefaction occurred in the end-dumped gravelly fills and hydraulically-placed dredged sandy fill at the CentrePort of Wellington as a result of the 14 November 2016 Mw7.8 Kaikoura earthquake. This liquefaction resulted in substantial global (mass) settlement and lateral movement (spreading) of the fills towards the sea, which adversely affected wharf structures and buildings constructed on shallow and deep foundations. This paper presents key observations from the QuakeCoRE-GEER post-earthquake reconnaissance efforts at the CentrePort Wellington. The different materials and methods used to construct the reclaimed land at CentrePort influenced the patterns of observed liquefaction and its effects. Areas of gravel liquefaction at the port are especially important due to the limited number of these case histories in the literature. Liquefaction-induced ground deformations caused the wharves to displace laterally and damage their piles and offloading equipment. Lateral ground extension and differential settlement damaged buildings, whereas buildings in areas of uniform ground settlement without lateral extension performed significantly better.
Liquefaction effects and associated damages observed at the Wellington CentrePort from the 2016 Kaikoura earthquake
Widespread liquefaction occurred in the end-dumped gravelly fills and hydraulically-placed dredged sandy fill at the CentrePort of Wellington as a result of the 14 November 2016 Mw7.8 Kaikoura earthquake. This liquefaction resulted in substantial global (mass) settlement and lateral movement (spreading) of the fills towards the sea, which adversely affected wharf structures and buildings constructed on shallow and deep foundations. This paper presents key observations from the QuakeCoRE-GEER post-earthquake reconnaissance efforts at the CentrePort Wellington. The different materials and methods used to construct the reclaimed land at CentrePort influenced the patterns of observed liquefaction and its effects. Areas of gravel liquefaction at the port are especially important due to the limited number of these case histories in the literature. Liquefaction-induced ground deformations caused the wharves to displace laterally and damage their piles and offloading equipment. Lateral ground extension and differential settlement damaged buildings, whereas buildings in areas of uniform ground settlement without lateral extension performed significantly better.
Liquefaction effects and associated damages observed at the Wellington CentrePort from the 2016 Kaikoura earthquake
Cubrinovski, Misko (author) / Bray, Jonathan D. (author) / De La Torre, Christopher (author) / Olsen, Michael J. (author) / Bradley, Brendon A. (author) / Chiaro, Gabriele (author) / Stocks, Emilia (author) / Wotherspoon, Liam (author)
2017-06-30
doi:10.5459/bnzsee.50.2.152-173
Bulletin of the New Zealand Society for Earthquake Engineering; Vol. 50 No. 2 (2017): Special Issue on the 2016 KaikÅura Earthquake; 152-173 ; 2324-1543 ; 1174-9857
Article (Journal)
Electronic Resource
English
DDC:
720
Liquefaction of Reclaimed Land at Wellington Port in the 2016 Kaikoura Earthquake
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