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Images, UC QuakeStudies

A photograph of a portaloo outside a residential property in Christchurch. After the 22 February 2011 earthquake, many houses had no running water and were forced to use chemical toilets or portaloos placed along the street. There is flooding and liquefaction on the street in the foreground. Liquefaction silt has been piled on the side of the road and a road cone placed in front.

Images, UC QuakeStudies

A photograph of a pile of liquefaction and other rubble on the side of a residential road in Christchurch. The material has been removed from a property and placed on the road for the Christchurch City Council to collect. A road cone has been placed next to the pile to warn road users of its presence.

Research papers, University of Canterbury Library

With the occurrence of natural disasters on the increase, major cities around the world face the potential of complete loss of infrastructure due to design guidelines that do not consider resilience in the design. With the February 22nd, 2011 earthquake in Christchurch, being the largest insured event, lessons learnt from the rebuild will be vital for the preparation of future disasters. Therefore the objective of this research is to understand the financial implications of the changes to the waste water design guidelines used throughout the five year rebuild programme of works. The research includes a study of the SCIRT alliance model selected for the delivery that is flexible enough to handle changes in the design with minimal impact on the direct cost of the rebuild works. The study further includes the analysis and compares the impact of the three different guidelines on maintenance and replacement cost over the waste water pipe asset life. The research concludes that with the varying ground conditions in Christchurch and also the wide variety of materials in use in the waste water network up to the start of the CES, the rebuild was not a ‘one size fits all’ approach.

Images, UC QuakeStudies

A photograph of the public launch event for Agropolis, which was part of FESTA 2013. Agropolis is an urban farm on the corner of High Street and Tuam Street. Organic waste from inner-city hospitality businesses is composted and used to grow food.

Images, UC QuakeStudies

A photograph of compost heaps at Agropolis, an urban farm on the corner of High Street and Tuam Street. Organic waste from inner-city hospitality businesses is composted and used to grow food. Agropolis was the venue for several events throughout FESTA 2013.

Images, UC QuakeStudies

A photograph of people working at Agropolis, an urban farm on the corner of High Street and Tuam Street. Organic waste from inner-city hospitality businesses is composted and used to grow food. Agropolis was the venue for several events throughout FESTA 2013.

Images, UC QuakeStudies

A photograph of people working at Agropolis before the public launch event during FESTA 2013. Agropolis is an urban farm on the corner of High Street and Tuam Street. Organic waste from inner-city hospitality businesses is composted and used to grow food.

Images, UC QuakeStudies

A photograph of people gathered at Agropolis, an urban farm on the corner of High Street and Tuam Street. Organic waste from inner-city hospitality businesses is composted and used to grow food. Agropolis was the venue for several events throughout FESTA 2013.

Images, UC QuakeStudies

A photograph of compost heaps at Agropolis, an urban farm on the corner of High Street and Tuam Street. Organic waste from inner-city hospitality businesses is composted and used to grow food. Agropolis was the venue for several events throughout FESTA 2013.

Images, UC QuakeStudies

A photograph of people working at Agropolis before the public launch event during FESTA 2013. Agropolis is an urban farm on the corner of High Street and Tuam Street. Organic waste from inner-city hospitality businesses is composted and used to grow food.

Images, UC QuakeStudies

A photograph of a compost heap at Agropolis, an urban farm on the corner of High Street and Tuam Street. Organic waste from inner-city hospitality businesses is composted and used to grow food. Agropolis was the venue for several events throughout FESTA 2013.

Images, UC QuakeStudies

A photograph of plants in a raised garden bed at the opening of Agropolis during FESTA 2013. Agropolis is an urban farm on the corner of High Street and Tuam Street. Organic waste from inner-city hospitality businesses is composted and used to grow food.

Images, UC QuakeStudies

A photograph of people at the public launch event for Agropolis, which was part of FESTA 2013. Agropolis is an urban farm on the corner of High Street and Tuam Street. Organic waste from inner-city hospitality businesses is composted and used to grow food.

Research papers, University of Canterbury Library

This thesis documents the development and demonstration of an assessment method for analysing earthquake-related damage to concrete waste water gravity pipes in Christchurch, New Zealand, following the 2010-2011 Canterbury Earthquake Sequence (CES). The method is intended to be internationally adaptable to assist territorial local authorities with improving lifelines infrastructure disaster impact assessment and improvements in resilience. This is achieved through the provision of high-resolution, localised damage data, which demonstrate earthquake impacts along the pipe length. The insights gained will assist decision making and the prioritisation of resources following earthquake events to quickly and efficiently restore network function and reduce community impacts. The method involved obtaining a selection of 55 reinforced concrete gravity waste water pipes with available Closed-Circuit Television (CCTV) inspection footage filmed before and after the CES. The pipes were assessed by reviewing the recordings, and damage was mapped to the nearest metre along the pipe length using Geographic Information Systems. An established, systematic coding process was used for reporting the nature and severity of the observed damage, and to differentiate between pre-existing and new damage resulting from the CES. The damage items were overlaid with geospatial data such as Light Detection and Ranging (LiDAR)-derived ground deformation data, Liquefaction Resistance Index data and seismic ground motion data (Peak Ground acceleration and Peak Ground Velocity) to identify potential relationships between these parameters and pipe performance. Initial assessment outcomes for the pipe selection revealed that main pipe joints and lateral connections were more vulnerable than the pipe body during a seismic event. Smaller diameter pipes may also be more vulnerable than larger pipes during a seismic event. Obvious differential ground movement resulted in increased local damage observations in many cases, however this was not obvious for all pipes. Pipes with older installation ages exhibited more overall damage prior to a seismic event, which is likely attributable to increased chemical and biological deterioration. However, no evidence was found relating pipe age to performance during a seismic event. No evidence was found linking levels of pre-CES damage in a pipe with subsequent seismic performance, and seismic performance with liquefaction resistance or magnitude of seismic ground motion. The results reported are of limited application due to the small demonstration sample size, but reveal the additional level of detail and insight possible using the method presented in this thesis over existing assessment methods, especially in relation to high resolution variations along the length of the pipe such as localised ground deformations evidenced by LiDAR. The results may be improved by studying a larger and more diverse sample pool, automating data collection and input processes in order to improve efficiency and consider additional input such as pipe dip and cumulative damage over a large distance. The method is dependent on comprehensive and accurate pre-event CCTV assessments and LIDAR data so that post-event data could be compared. It is proposed that local territorial authorities should prioritise acquiring this information as a first important step towards improving the seismic resilience of a gravity waste water pipe network.

Research papers, University of Canterbury Library

This thesis documents the development and demonstration of an assessment method for analysing earthquake-related damage to concrete waste water gravity pipes in Christchurch, New Zealand, following the 2010-2011 Canterbury Earthquake Sequence (CES). The method is intended to be internationally adaptable to assist territorial local authorities with improving lifelines infrastructure disaster impact assessment and improvements in resilience. This is achieved through the provision of high-resolution, localised damage data, which demonstrate earthquake impacts along the pipe length. The insights gained will assist decision making and the prioritisation of resources following earthquake events to quickly and efficiently restore network function and reduce community impacts. The method involved obtaining a selection of 55 reinforced concrete gravity waste water pipes with available Closed-Circuit Television (CCTV) inspection footage filmed before and after the CES. The pipes were assessed by reviewing the recordings, and damage was mapped to the nearest metre along the pipe length using Geographic Information Systems. An established, systematic coding process was used for reporting the nature and severity of the observed damage, and to differentiate between pre-existing and new damage resulting from the CES. The damage items were overlaid with geospatial data such as Light Detection and Ranging (LiDAR)-derived ground deformation data, Liquefaction Resistance Index data and seismic ground motion data (Peak Ground acceleration and Peak Ground Velocity) to identify potential relationships between these parameters and pipe performance. Initial assessment outcomes for the pipe selection revealed that main pipe joints and lateral connections were more vulnerable than the pipe body during a seismic event. Smaller diameter pipes may also be more vulnerable than larger pipes during a seismic event. Obvious differential ground movement resulted in increased local damage observations in many cases, however this was not obvious for all pipes. Pipes with older installation ages exhibited more overall damage prior to a seismic event, which is likely attributable to increased chemical and biological deterioration. However, no evidence was found relating pipe age to performance during a seismic event. No evidence was found linking levels of pre-CES damage in a pipe with subsequent seismic performance, and seismic performance with liquefaction resistance or magnitude of seismic ground motion. The results reported are of limited application due to the small demonstration sample size, but reveal the additional level of detail and insight possible using the method presented in this thesis over existing assessment methods, especially in relation to high resolution variations along the length of the pipe such as localised ground deformations evidenced by LiDAR. The results may be improved by studying a larger and more diverse sample pool, automating data collection and input processes in order to improve efficiency and consider additional input such as pipe dip and cumulative damage over a large distance. The method is dependent on comprehensive and accurate pre-event CCTV assessments and LIDAR data so that post-event data could be compared. It is proposed that local territorial authorities should prioritise acquiring this information as a first important step towards improving the seismic resilience of a gravity waste water pipe network.

Audio, Radio New Zealand

The Tiwai Point Aluminium Smelter has stockpiled a thousand tonnes of hazardous waste near an eroding beach, A court ruling finds inmates at Auckland Women's Prison were treated in a cruel and degrading manner,We speak to some of those affected by the devastating earthquake that struck Christchurch ten years ago today.

Images, UC QuakeStudies

A photograph of a speech being given at the public launch of Agropolis, which was part of FESTA 2013. Agropolis is an urban farm on the corner of High Street and Tuam Street. Organic waste from inner-city hospitality businesses is composted and used to grow food.

Images, UC QuakeStudies

A photograph of young children at the public launch event for Agropolis, which was part of FESTA 2013. Agropolis is an urban farm on the corner of High Street and Tuam Street. Organic waste from inner-city hospitality businesses is composted and used to grow food.

Images, UC QuakeStudies

A photograph of a young child at the public launch event for Agropolis, which was part of FESTA 2013. Agropolis is an urban farm on the corner of High Street and Tuam Street. Organic waste from inner-city hospitality businesses is composted and used to grow food.

Images, UC QuakeStudies

A photograph of people at Agropolis just before the public launch event, which was part of FESTA 2013. Agropolis is an urban farm on the corner of High Street and Tuam Street. Organic waste from inner-city hospitality businesses is composted and used to grow food.