Christchurch Press 7 June 2011: Section A, Page 1
Articles, UC QuakeStudies
Page 1 of Section A of the Christchurch Press, published on Tuesday 7 June 2011.
Page 1 of Section A of the Christchurch Press, published on Tuesday 7 June 2011.
Page 20 of Section A of the Christchurch Press, published on Saturday 26 February 2011.
Page 15 of Section C of the Christchurch Press, published on Saturday 19 March 2011.
This Philip Temple-scripted episode of Our People, Our Century covers stories of New Zealanders and their turangawaewae: a piece of land they call their own. The importance of the land to farming families, and to the economy of NZ is explored through the eyes of three families. Elworthy Station in South Canterbury is being farmed by a 5th generation Elworthy. Two elderly ladies reminisce on their childhood in remote Mangapurua, near Raetihi in the central North Island. And a Māori family in Taranaki reflects on their decision to sell the family farm.
A television announcer sits at his desk reading the news. He says 'The shake which lasted 75 minutes and caused widespread damage in living rooms all over the country measured 5.18 on the rugby scale and was centred on Port Elizabeth in South Africa'. Context: The All Blacks lost to the Springboks 5-18 in a tri-nations test match in South Africa only a few days before the World Cup kick-off. Fans have been warned not to panic. Colour and black and white versions available Quantity: 2 digital cartoon(s).
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.
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.
This paper presents site-specific and spatially-distributed ground-motion intensity estimates which have been utilized in the aftermath of the 2010-2011 Canterbury, New Zealand earthquakes. The methodology underpinning the ground motion intensity estimation makes use of both prediction models for ground motion intensity and its within-event spatial correlation. A key benefit of the methodology is that the estimated ground motion intensity at a given location is not a single value but a distribution of values. The distribution is comprised of both a mean and standard deviation, with the standard deviation being a function of the distance to nearby observations at strong motion stations. The methodology is illustrated for two applications. Firstly, maps of conditional peak ground acceleration (PGA) have been developed for the major events in the Canterbury earthquake sequence, which among other things, have been utilized for assessing liquefaction triggering susceptibility of land in residential areas. Secondly, the conditional distribution of response spectral ordinates is obtained at the location of the Canterbury Television building (CTV), which catastrophically collapsed in the 22 February 2011 earthquake. The conditional response spectra provide insight for the selection of ground motion records for use in forensic seismic response analyses of important structures at locations where direct recordings are absent.
This 2011 episode of the Russell Brown-fronted media commentary show examines how Christchurch is dealing with the aftermath of two devastating earthquakes. First up: the CEISMIC Digital Archive is working to preserve the memories and experiences of Cantabrians, and The Press editor Andrew Holden explains why his newspaper is donating everything it has published to the project. Then CERA CEO Roger Sutton talks about the key role of media relations, and filmmaker Gerard Smyth describes shooting his acclaimed chronicle of the quakes: When a City Falls.
Rt Hon WINSTON PETERS to the Prime Minister: Does he stand by all his statements? DAVID SHEARER to the Prime Minister: Does he stand by all his statements? PAUL GOLDSMITH to the Minister of Finance: What reports has he received on business and economic conditions in New Zealand? Dr RUSSEL NORMAN to the Prime Minister: Does he stand by his answer to written question 07314 (2013) when he said: "The inquiry team, itself, did not seek permission from Peter Dunne before it obtained his email logs" and does he think it should have? SIMON O'CONNOR to the Minister of Transport: How will the Government progress the delivery of the next generation of transport projects for Auckland? Hon DAVID PARKER to the Minister of Finance: Are the proceeds from selling power companies and other assets being used to pay down debt, to build schools and hospitals, to fund irrigation projects, to rebuild Christchurch, or to fund Auckland transport projects? IAN McKELVIE to the Minister of Police: What updates has she received on how Police are using technology to prevent crime? JACINDA ARDERN to the Minister of Finance: Does he agree with The Economist that "inequality is one of the biggest social, economic and political challenges of our time"; if so, what is his Government doing to address the fact that New Zealand now has the widest income gap since detailed records began? PAUL FOSTER-BELL to the Minister of Justice: How is the Government improving its justice and other services to local communities? Hon LIANNE DALZIEL to the Minister for Canterbury Earthquake Recovery: When was he first made aware of the September IANZ report which warned the Christchurch City Council that "Continued accreditation beyond May 2013 will depend on a satisfactory outcome of that assessment" and was he advised by CERA or a Ministerial colleague? JONATHAN YOUNG to the Minister of Broadcasting: What progress has been made on the regional rollout of the digital switchover for New Zealand television viewers? GARETH HUGHES to the Minister of Conservation: Will he implement the recommendations to protect Maui's dolphins contained in the report of this year's meeting of the International Whaling Commission Scientific Committee; if not, why not Questions to Members JACINDA ARDERN to the Chairperson of the Social Services Committee: On which date and time, if any, did he receive the Minister for Social Development's written responses to the pre-hearing questions for the 2013/14 Estimates review for Vote Social Development? JACINDA ARDERN to the Chairperson of the Social Services Committee: On what date did the Minister for Social Development appear before the Committee to answer questions regarding the 2013/14 Estimates review for Vote Social Development? Dr MEGAN WOODS to the Chairperson of the Education and Science Committee: Did he consider inviting the Minister to appear again to answer questions around responses to questions on the 2013/14 Estimates for Vote Education, if so, did he receive any advice about the Minister's willingness to appear again?
Early Days Yet, directed by Shirley Horrocks, is a full-length documentary about New Zealand poet Allen Curnow, made in the last months of his life. The poet talks about his life and work, and visits the places of some of his most important poems. It includes interviews with other New Zealand poets about Curnow's significance as an advocate for New Zealand poetry. As Curnow famously mused in front of a moa skeleton displayed in Canterbury Museum: "Not I, some child, born in a marvellous year / Will learn the trick of standing upright here."