A reconnaissance report on the 4 September 2010 earthquake. The report was compiled by a team from the US National Science Foundation-sponsored Geotechnical Extreme Events Reconnaissance (GEER) Association.
A reconnaissance report on the 22 February 2011 earthquake. The report was compiled by a team from the US National Science Foundation-sponsored Geotechnical Extreme Events Reconnaissance (GEER) Association.
A pdf copy of a PowerPoint presentation prepared for the Australia New Zealand Geotechnical Engineering Conference.
A paper which outlines the observed damage to Christchurch City Council-owned retaining walls and the repair solutions developed.
A paper which outlines SCIRT's approach to asset assessment, design and repair of damaged retaining walls, and presents a case study of a retaining wall rebuild, on Cunningham Terrace, Lyttelton.
A magazine article which outlines the observations of engineers working on SCIRT retaining wall and ground improvement projects.
The Christchurch liquefaction study was initiated to better determine liquefaction susceptibility in Christchurch city. It aimed to improve on earlier liquefaction susceptibility maps, which were based on soil type and distribution, by incorporating soil strength data into liquefaction analysis. This stage of the study included collating available geological and geotechnical data from Environment Canterbury and Christchurch City Council into a database, modelling liquefaction hazard and ground damage and presenting these as maps. The report contains many recommendations, which were taken up in subsequent stages of the study. (Note that the results of Stage 1 of the Christchurch liquefaction study were provided to Environment Canterbury as a letter rather than a report. This was a summary of work completed to 30 June 2001, including a review of geological and geotechnical data available within Environment Canterbury and Christchurch City Council records.) See Object Overview for background and usage information.
This study determined areas of different liquefaction susceptibility in Hurunui District based mainly on geological data, with some limited borehole strata interpretation. Geotechnical data was not analysed. This was the same method used in the earthquake hazard assessments for engineering lifelines in other districts in Canterbury. Hurunui District was the first district that a hazard assessment for engineering lifelines was undertaken for (in 2000) and it did not include a liquefaction susceptibility map like the other district earthquake hazard assessments did. There are no recommendations associated with this report. See Object Overview for background and usage information.