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Images for Canterbury earthquakes; more images...

Images, UC QuakeStudies

Photograph captioned by Fairfax, "New Zealand's Governor-General Anand Satyanand and his wife Susan Satyanand visited sites around earthquake stricken Canterbury today. Selwyn District Council put a BBQ lunch for their staff and the Governor-General during his visit to their Rolleston offices. Satyanand talks to building consent officer Jeffrey Gordon".

Images, eqnz.chch.2010

20160307_0012_1D3-32 Subway is closed (067/366) The Subway shop in the High Street Mall has not operated since lunch time on the 22nd February 2011 when the most damaging of Christchurch and Canterbury's earthquakes struck. I assume the building is still to be demolished. #7119

Images, Alexander Turnbull Library

Christchurch City has to be rebuilt after the earthquakes of 4 September 2010 and 22 February 2011. People are being invited to contribute ideas about how to rebuild on a city council website. A group of people look at ideas on computers; a boy comments that 'this one looks just like the old city' and his father comments 'but built fifty miles up the road!' A woman looks at what appears to be pre European Maori pa site and says 'Hone Harawira wants something pre-European!' Another woman looks at a map of the middle of the South Island and says 'Rodney Hide doesn't care as long as Christchurch combines with Timaru and Westport!' Context - Former ACT leader Rodney Hide in his role as Minister for Local Government likes 'supercities' and Hone Harawira has left the Maori Party, fed up with the compromises he believes they have to make to suit their coalition agreement with the National government. He seems to prefer a city that will reflect simpler pre-European times. Colour and black and white versions available Quantity: 2 digital cartoon(s).

Research papers, University of Canterbury Library

La pericolosità associata ad un dato fenomeno costituisce uno dei fattori più importanti e difficili da quantificare nelle analisi di rischio, a maggior ragione quando si tratta di fenomeni complessi come nel caso della liquefazione sismica. Il presente lavoro illustra sinteticamente uno studio della pericolosità indotta al suolo da liquefazione basato su un caso campione statistico particolarmente significativo, il terremoto (Mw 6.2) che ha colpito Christchurch, Nuova Zelanda, del 2011. La notevole mole di dati disponibili, relativi alle caratteristiche geotecniche del sottosuolo, unitamente al rilievo dei danni ha consentito innanzitutto di caratterizzare la suscettibilità a liquefazione dell’area, indipendentemente dall’evento sismico, quindi di correlare statisticamente le diverse grandezze e di derivare delle curve di vulnerabilità del suolo.

Audio, Radio New Zealand

Opposition leader Simon Bridges is accusing the government of a spending blowout. He says the government plans to increase borrowing by $17 billion over the next four years. Mr Bridges tells Gyles Beckford the total is about what National had to borrow to steer the country through the Global Financial Crisis and the Canterbury earthquakes.

Audio, Radio New Zealand

More pressure on interested bidders in the Pike River mine to recover the bodies, from both the government and unions. The government's new plan to strengthen infrastructure after the Canterbury earthquakes, it's already criticised for not going far enough and the AA again attacks petrol companies for not cutting prices, despite falling oil prices.

Images, Alexander Turnbull Library

It is the middle of the night and a man wearing his dressing-gown runs out of his house towards a portaloo clutching a toilet roll and saying 'Try me'. The neighbourhood is wrecked by earthquakes. On the ground is a newspaper with a headline that reads 'New Delhi athletes substandard accomodation facilities'. A second newspaper reads 'Given the choice many prefer to stay home'. Context: The first Christchurch earthquake shook the city on early morning of the 4th September 2010. The destruction of sewage infrastructure has meant portaloos and long-drops have become de rigeur as a consequence. There was a desperate rush to get the village ready for the influx of athletes before the opening of the Commonwealth Games on 3rd October 2010 and there was a fear that unsatisfactory sanitation systems might cause health and safety problems. Quantity: 1 digital cartoon(s).

Research papers, University of Canterbury Library

Results from cyclic undrained direct simple shear tests on reconstituted specimens of two sands from Christchurch are compared against the liquefaction resistance inferred from CPT-based empirical liquefaction triggering methods. Limitations in existing empirical triggering relationships to capture important effects related to processes which originated test soils are highlighted and discussed.

Images, Alexander Turnbull Library

Shows Bishop Victoria Matthews reading a brochure offering cheap deals for cathedrals and their various accoutrements. Context: refers to the debate about the fate of the Christchurch Cathedral. Bishop Victoria Matthews is in favour of demolishing the cathedral to a certain safe level. The lobby for saving the cathedral, wrecked by the earthquakes of 2010 and 2011, is very strong. Quantity: 1 digital cartoon(s).

Articles, UC QuakeStudies

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.

Audio, Radio New Zealand

A review of the week's headline news including the unfolding environmental disaster in the Bay of Plenty, the Earthquake Commission expected to face tough questioning on its handling of the Canterbury earthquakes, the finance minister says more belt tightening on the way, Labour refusing to accept the Prime Minister's explanation of his Standard and Poors comments, the Greens sceptical of claims that insurgents caught by the SAS in Afghanistan have not been tortured, the only All Black team to win the Rugby World Cup gathers for the first time in 24 years and business confidence plunges.

Images, eqnz.chch.2010

The sign reads: The CTV Building was headquarters of Canterbury Television (CTV) and also housed King’s Education language School, a medical clinic, Hair Consultants, Relationship Services and a nursing school. On February 22nd 2011 the building collapsed as a result of a major earthquake. Sadly, 115 people who were in the building lost their l...

Images, Alexander Turnbull Library

At a time when the public needs an excellent service from their city council because of earthquake problems an independent government representative has been appointed to help get the dysfunctional [Christchurch] council back on track. Includes the news that chief executive Tony Marryatt has announced he has turned down a controversial $68,000 pay rise. Problems in the council have been apparent for several months, and in the last week there have been calls for the councillors to be sacked and replaced by commissioners. Quantity: 1 digital cartoon(s).

Research papers, University of Canterbury Library

Surface rupture of the previously unrecognised Greendale Fault extended west-east for ~30 km across alluvial plains west of Christchurch, New Zealand, during the Mw 7.1 Darfield (Canterbury) earthquake of September 2010. Surface rupture displacement was predominantly dextral strike-slip, averaging ~2.5 m, with maxima of ~5 m. Vertical displacement was generally less than 0.75 m. The surface rupture deformation zone ranged in width from ~30 to 300 m, and comprised discrete shears, localised bulges and, primarily, horizontal dextral flexure. About a dozen buildings, mainly single-storey houses and farm sheds, were affected by surface rupture, but none collapsed, largely because most of the buildings were relatively flexible and resilient timber-framed structures and also because deformation was distributed over a relatively wide zone. There were, however, notable differences in the respective performances of the buildings. Houses with only lightly-reinforced concrete slab foundations suffered moderate to severe structural and non-structural damage. Three other buildings performed more favourably: one had a robust concrete slab foundation, another had a shallow-seated pile foundation that isolated ground deformation from the superstructure, and the third had a structural system that enabled the house to tilt and rotate as a rigid body. Roads, power lines, underground pipes, and fences were also deformed by surface fault rupture and suffered damage commensurate with the type of feature, its orientation to the fault, and the amount, sense and width of surface rupture deformation.

Research papers, University of Canterbury Library

Between 2010 and 2011, Canterbury experienced a series of four large earthquake events with associated aftershocks which caused widespread damage to residential and commercial infrastructure. Fine grained and uncompacted alluvial soils, typical to the Canterbury outwash plains, were exposed to high peak ground acceleration (PGA) during these events. This rapid increase in PGA induced cyclic strain softening and liquefaction in the saturated, near surface alluvial soils. Extensive research into understanding the response of soils in Canterbury to dynamic loading has since occurred. The Earthquake Commission (EQC), the Ministry of Business and Employment (MBIE), and the Christchurch City Council (CCC) have quantified the potential hazards associated with future seismic events. Theses bodies have tested numerous ground improvement design methods, and subsequently are at the forefront of the Canterbury recovery and rebuild process. Deep Soil Mixing (DSM) has been proven as a viable ground improvement foundation method used to enhance in situ soils by increasing stiffness and positively altering in situ soil characteristics. However, current industry practice for confirming the effectiveness of the DSM method involves specific laboratory and absolute soil test methods associated with the mixed column element itself. Currently, the response of the soil around the columns to DSM installation is poorly understood. This research aims to understand and quantify the effects of DSM columns on near surface alluvial soils between the DSM columns though the implementation of standardised empirical soil test methods. These soil strength properties and ground improvement changes have been investigated using shear wave velocity (Vs), soil behaviour and density response methods. The results of the three different empirical tests indicated a consistent improvement within the ground around the DSM columns in sandier soils. By contrast, cohesive silty soils portrayed less of a consistent response to DSM, although still recorded increases. Generally, within the tests completed 50 mm from the column edge, the soil response indicated a deterioration to DSM. This is likely to be a result of the destruction of the soil fabric as the stress and strain of DSM is applied to the un‐mixed in situ soils. The results suggest that during the installation of DSM columns, a positive ground effect occurs in a similar way to other methods of ground improvement. However, further research, including additional testing following this empirical method, laboratory testing and finite 2D and 3D modelling, would be useful to quantify, in detail, how in situ soils respond and how practitioners should consider these test results in their designs. This thesis begins to evaluate how alluvial soils tend to respond to DSM. Conducting more testing on the research site, on other sites in Christchurch, and around the world, would provide a more complete data set to confirm the results of this research and enable further evaluation. Completing this additional research could help geotechnical DSM practitioners to use standardised empirical test methods to measure and confirm ground improvement rather than using existing test methods in future DSM projects. Further, demonstrating the effectiveness of empirical test methods in a DSM context is likely to enable more cost effective and efficient testing of DSM columns in future geotechnical projects.

Research papers, University of Canterbury Library

The 2010–2011 Canterbury earthquakes and their aftermath have been described by the Human Rights Commission as one of New Zealand's greatest contemporary human rights challenges. This article documents the shortcomings in the realisation of the right to housing in post-quake Canterbury for homeowners, tenants and the homeless. The article then considers what these shortcomings tell us about New Zealand's overall human rights framework, suggesting that the ongoing and seemingly intractable nature of these issues and the apparent inability to resolve them indicate an underlying fragility implicit in New Zealand's framework for dealing with the consequences of a large-scale natural disaster. The article concludes that there is a need for a comprehensive human rights-based approach to disaster preparedness, response and recovery in New Zealand.

Research papers, University of Canterbury Library

Shaking table testing of a full-scale three storey resilient and reparable complete composite steel framed building system is being conducted. The building incorporates a number of interchangeable seismic resisting systems of New Zealand and Chinese origin. The building has a steel frame and cold formed steel-concrete composite deck. Energy is dissipated by means of friction connections. These connections are arranged in a number of structural configurations. Typical building nonskeletal elements (NSEs) are also included. Testing is performed on the Jiading Campus shaking table at Tongji University, Shanghai, China. This RObust BUilding SysTem (ROBUST) project is a collaborative China-New Zealand project sponsored by the International Joint Research Laboratory of Earthquake Engineering (ILEE), Tongji University, and a number of agencies and universities within New Zealand including BRANZ, Comflor, Earthquake Commission, HERA, QuakeCoRE, QuakeCentre, University of Auckland, and the University of Canterbury. This paper provides a general overview of the project describing a number of issues encountered in the planning of this programme including issues related to international collaboration, the test plan, and technical issues.

Audio, Radio New Zealand

Te Pae, Christchurch's near $450 million convention centre, has been officially opened this afternoon with a pōwhiri and unveiling by Mayor Lianne Dalziel and Minister Megan Woods. Billed as a legacy for the city, it replaces the old centre which was demolished following the Canterbury earthquakes. Niva Chittock is at the ceremony and joins Lisa with the details.

Audio, Radio New Zealand

The Christchurch City Council's plans to to help curb a rising homeless population has left some people who live rough worried. The council is considering funding the Christchurch City Mission to employ outreach workers for the first time since the Canterbury earthquakes, and police are increasing central city patrols. Christchurch reporter Logan Church has the story.

Audio, Radio New Zealand

Displaced residents of Merivale Retirement village in Christchurch were told that they need to move out by April 1. A new facility that has replaced the earthquake damaged one won't have enough beds for everyone. The CEO of Age Concern Canterbury Simon Templeton talks about what measures are in place to look after these vulnerable elderly people.

Audio, Radio New Zealand

The old Ngaio Marsh theatre at the University of Canterbury was one of the many casualties of the earthquakes.The Student Association is encouraging people who performed on stage or helped out behind the scenes to buy a seat for the replacement Ngaio Marsh Theatre. Lynn Freeman talks with the UCSA president Sam Brosnahan about the project.

Audio, Radio New Zealand

A legal settlement between the Earthquake Commission and a group of Canterbury homeowners over the standard of quake repairs, is being described as a milestone for house owners throughout the country. The Reserve Bank has left the cost of borrowing unchanged at a record low 2-point-25 percent, athough it is signalling further cuts remain on the cards.

Audio, Radio New Zealand

Kaiapoi, just north of Christchurch, has unveiled a bold new plan for the parts of the town wiped off the map in the Canterbury earthquakes. The plan proposes having house boats on the river that runs through the town, there'll be a place for campervans to park up and a covered sports facility is on the cards.

Audio, Radio New Zealand

The government plans to introduce legislation to change the Earthquake Commission's operations, after a report found major failings. It found EQC was woefully unprepared as it dealt with the Canterbury quakes, and made dozens of recommendations about clarifying EQC's role and improving the way it deals with claimants. RNZ political reporter Yvette McCullough has more.

Audio, Radio New Zealand

A new study suggests young Maori wahine are being let down by the health system, because of inadequate information to help them find a midwife; A South Island marae has accepted a donation to repair its wharekai damaged during the 2011 Canterbury earthquakes; About 750 Maori and Pasifika Auckland tertiary students will celebrate their academic achievement.

Audio, Radio New Zealand

Some of the families of the 115 people who dies in the CTV building during the 2011 Canterbury earthquake protested in Latimer Square yesterday over the police decision not to prosecute the designers of the CTV building. They say they do want to see a prosecution go ahead, and they are seeking legal advice about what their options are.

Audio, Radio New Zealand

A huge milestone in the rebuild of the Christchurch Cathedral. Twelves years since the Canterbury earthquakes caused extensive damage to the building, community leaders and project managers have gathered inside the cathedral this morning for the first time since the quakes. It also marks the completion of stablisation phase of the project. Our reporter Adam Burns went along.

Research papers, University of Canterbury Library

This paper presents preliminary results of an experimental campaign on three beam-column joint subassemblies extracted from a 22-storey reinforced concrete frame building constructed in late 1980s at the Christchurch’s Central Business District (CBD) area, damaged and demolished after the 2010-2011 Canterbury earthquakes sequence (CES). The building was designed following capacity design principles. Column sway (i.e., soft storey) mechanisms were avoided, and the beams were provided with plastic hinge relocation details at both beam-ends, aiming at developing plastic hinges away from the column faces. The specimens were tested under quasi-static cyclic displacement controlled lateral loading. One of the specimens, showing no visible residual cracks was cyclically tested in its as-is condition. The other two specimens which showed residual cracks varying between hairline and 1.0mm in width, were subjected to cyclic loading to simulate cracking patterns consistent with what can be considered moderate damage. The cracked specimens were then repaired with an epoxy injection technique and subsequently retested until reaching failure. The epoxy injection techniques demonstrated to be quite efficient in partly, although not fully, restoring the energy dissipation capacities of the damaged specimens at all beam rotation levels. The stiffness was partly restored within the elastic range and almost fully restored after the onset of nonlinear behaviour.