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Images, UC QuakeStudies

A house on Avonside Drive showing damage from the 4 September 2010 earthquake. Numerous cracks in the masonry can be seen, and several sections of brick have fallen off the walls. The building's porch has also collapsed. A pile of dried liquefaction is visible in the driveway.

Images, UC QuakeStudies

A house on Avonside Drive showing damage from the 4 September 2010 earthquake. Numerous cracks in the masonry can be seen, and several sections of brick have fallen off the walls. The building's porch has also collapsed. A pile of dried liquefaction is visible in the driveway.

Images, UC QuakeStudies

A truck used to drain the septic tanks installed in front of Avonside properties to allow residents to use their toilets after the 4 September 2010 earthquake. The truck's operator has parked it beside the Avon River on Avonside Drive while he takes a break from working.

Images, UC QuakeStudies

The driveway of a section on Galbraith Avenue in Avonside that has been cracked by the 4 September 2010 earthquake. Behind it is one of the septic tanks that were installed in front of Avonside properties to allow residents to use their toilets after the earthquake.

Images, UC QuakeStudies

A photograph of emergency personnel in Cowles Stadium on Pages Road. The stadium was set up by Civil Defence as temporary accommodation for citizens displaced by the 4 September 2010 earthquake. In the foreground, the registration table has a Civil Defence sign reading, "Please register here".

Images, UC QuakeStudies

A truck used to drain the septic tanks installed in front of Avonside properties to allow residents to use their toilets after the 4 September 2010 earthquake. The truck's operator has parked it beside the Avon River on Avonside Drive while he takes a break from working.

Research papers, University of Canterbury Library

Well-validated liquefaction constitutive models are increasingly important as non-linear time history analyses become relatively more common in industry for key projects. Previous validation efforts of PM4Sand, a plasticity model specifically for liquefaction, have generally focused on centrifuge tests; however, pore pressure transducers installed at several free-field sites during the Canterbury Earthquake Sequence (CES) in Christchurch, New Zealand provide a relatively unique dataset to validate against. This study presents effective stress site response analyses performed in the finite difference software FLAC to examine the capability of PM4Sand to capture the generation of excess pore pressures during earthquakes. The characterization of the subsurface is primarily based on extensive cone penetration tests (CPT) carried out in Christchurch. Correlations based on penetration resistances are used to estimate soil parameters, such as relative density and shear wave velocity, which affect liquefaction behaviour. The resulting free-field FLAC model is used to estimate time histories of excess pore pressure, which are compared with records during several earthquakes in the CES to assess the suitability of PM4Sand.

Images, UC QuakeStudies

A house on Acland Avenue in Avonside that has been abandoned due to damage from the 4 September 2010 earthquake. The house's front garden has become overgrown and weeds have grown up through the cracks in its driveway. Its chimneys have collapsed and have been weather proofed with tarpaulins.

Images, UC QuakeStudies

A photograph of members of the Wellington Emergency Management Office at Cowles Stadium on Pages Road. The stadium was set up by Civil Defence as temporary accommodation for those displaced by the 4 September 2010 earthquake. In the background, members of Red Cross are working at the registration table.

Images, UC QuakeStudies

St Pauls Trinity-Pacific Presbyterian Church on the corner of Cashel and Madras Streets. Scaffolding has been placed around the left dome of the building which was damaged during the 4 September earthquake. Plastic has also been placed over the dome to protect the inside from weather damage.

Images, UC QuakeStudies

St Pauls Trinity-Pacific Presbyterian Church on the corner of Cashel and Madras Streets. Scaffolding has been placed around the left dome of the building which was damaged during the 4 September earthquake. Plastic has also been placed over the dome to protect the inside from weather damage.

Images, UC QuakeStudies

A photograph of members of the Wellington Emergency Management Office lining up outside a Maggi van which is distributing soup. The van is parked outside Cowles Stadium on Pages Road, which was set up by Civil Defence as temporary accommodation for those displaced by the 4 September 2010 earthquake.

Images, UC QuakeStudies

An abandoned residential property at 4 Waireka Lane in Bexley. The driveway is covered with weeds and silt from liquefaction. One of the garage doors is twisted and the other has 'HM' spray-painted on it. The number four has been spray-painted on the brick wall under the window.

Images, UC QuakeStudies

A photograph of volunteers from the Wellington Emergency Management Office working at the reception in Cowles Stadium on Pages Road. The stadium was set up by Civil Defence as temporary accommodation for citizens displaced by the 4 September 2010 earthquake. One of the volunteers is holding a cat in a carrier.

Images, UC QuakeStudies

A photograph of members of the Wellington Emergency Management Office lining up outside a Maggi van which is distributing out soup. The van is parked outside Cowles Stadium on Pages Road, which was set up by Civil Defence as temporary accommodation for those displaced by the 4 September 2010 earthquake.

Images, UC QuakeStudies

A photograph of volunteers from the Wellington Emergency Management Office working at the reception area of Cowles Stadium on Pages Road. The stadium was set up as temporary accommodation for those displaced by the 4 September 2010 earthquake. To the right Tim Shadbolt, Mayor of Invercargill, is talking on a telephone.

Images, UC QuakeStudies

Roading machinery parked on the side of River Road. The road is under repair, but has not yet been resealed. The photographer comments, "Looking east to Banks Ave-Dallington Tce. River Rd nearly ready for re-sealing. Over the next year, the road subsided and was repaired 3 or 4 times".

Images, eqnz.chch.2010

Aftermath of September 4th Earthquake in Canterbury. Shops on Colombo Street in Christchurch - damaged in earthquake and then partially demolished to reduce risk from unstable materials which might otherwise be dislodged in strong winds or subsequent aftershocks. The 1590 aftershocks recorded to date have continued to cause further damage.

Images, UC QuakeStudies

A photograph of two large signs at Cathedral Junction that are part of Signs of Things to Come. This was a wayfinding project by Generation Zero and Diadem, for FESTA 2014. The signage gives directions to key central city and FESTA locations, and compares the current and future potential of transport in Christchurch.