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The Sumner Road Reopening Project  

This paper was prepared for the NZGS 2020 Symposium and will be presented at the rescheduled meeting ABSTRACT Sumner Road between Lyttelton to Evans Pass was severely affected by rockfall as a result of the 2010-2011 Canterbury Earthquake Sequence. Approximately 2 km of Sumner Road…

Recent Evolution and Implementation of Geotechnical Design Practice in New Zealand

Recent Evolution and Implementation of Geotechnical Design Practice in New Zealand

ABSTRACT Following the 2010-2011 Canterbury Earthquake Sequence a Royal Commission of inquiry provided approximately 200 recommendations to the Ministry of Business, Innovation & Employment (MBIE). Of these, over thirty were specific to geotechnical engineering. The royal inquiry recommended that MBIE work with industry to improve…

Development of 3D models of slope failure during Canterbury earthquake sequence

Development of 3D models of slope failure during Canterbury earthquake sequence

Abstract Christchurch City and its surrounds experienced a series of damaging earthquakes in 2010 and 2011. During the 22 February 2011 earthquake, extensive cracking and movement of the ground occurred in some areas of the Port Hills. We have used a geological modelling package, Leapfrog3D®,…

Evaluation of liquefaction and re-liquefaction observed in Christchurch using CPT data

Evaluation of liquefaction and re-liquefaction observed in Christchurch using CPT data

The Canterbury region experienced widespread damage due to liquefaction induced by seismic shaking during the 4 September 2010 earthquake and the large aftershocks that followed, notably those that occurred on 22 February, 13 June and 23 December 2011. Following the 2010 earthquake, EQC directed a thorough investigation of…

An initial assessment of the effects of seismically induced ground deformation on the occurrence of localised instability following rainfall in the Port Hills, Christchurch

An initial assessment of the effects of seismically induced ground deformation on the occurrence of localised instability following rainfall in the Port Hills, Christchurch

Seismic activity during the 2010/2011 Canterbury Earthquake Sequence (CES) caused widespread damage to sloping ground in residential areas on the Port Hills in Christchurch. Much of the damage manifested as cracking and displacement of the ground surface. While actions were taken to repair some damage, it was largely…

Reliability of lateral stretch estimates in 2010-2011 Canterbury earthquakes

Reliability of lateral stretch estimates in 2010-2011 Canterbury earthquakes

Several methods are available in the literature to estimate the extent of liquefaction induced lateral spreading at a given site, the most commonly used being that of Zhang et al (2004). During the 2010-2011 sequence of earthquakes in Canterbury, lateral spreading occurred extensively across the…