Search

found 53017 results

Images for images; more images...

Research papers, University of Canterbury Library

Bulk rock strength is greatly dependent on fracture density, so that reductions in rock strength associated with faulting and fracturing should be reflected by reduced shear coupling and hence S-wave velocity. This study is carried out along the Canterbury rangefront and in Otago. Both lie within the broader plate boundary deformation zone in the South Island of New Zealand. Therefore built structures are often, , located in areas where there are undetected or poorly defined faults with associated rock strength reduction. Where structures are sited near to, or across, such faults or fault-zones, they may sustain both shaking and ground deformation damage during an earthquake. Within this zone, management of seismic hazards needs to be based on accurate identification of the potential fault damage zone including the likely width of off-plane deformation. Lateral S-wave velocity variability provides one method of imaging and locating damage zones and off-plane deformation. This research demonstrates the utility of Multi-Channel Analysis of Surface Waves (MASW) to aid land-use planning in such fault-prone settings. Fundamentally, MASW uses surface wave dispersive characteristics to model a near surface profile of S-wave velocity variability as a proxy for bulk rock strength. The technique can aid fault-zone planning not only by locating and defining the extent of fault-zones, but also by defining within-zone variability that is readily correlated with measurable rock properties applicable to both foundation design and the distribution of surface deformation. The calibration sites presented here have well defined field relationships and known fault-zone exposure close to potential MASW survey sites. They were selected to represent a range of progressively softer lithologies from intact and fractured Torlesse Group basement hard rock (Dalethorpe) through softer Tertiary cover sediments (Boby’s Creek) and Quaternary gravels. This facilitated initial calibration of fracture intensity at a high-velocity-contrast site followed by exploration of the limits of shear zone resolution at lower velocity contrasts. Site models were constructed in AutoCAD in order to demonstrate spatial correlations between S-wave velocity and fault zone features. Site geology was incorporated in the models, along with geomorphology, river profiles, scanline locations and crosshole velocity measurement locations. Spatial data were recorded using a total-station survey. The interpreted MASW survey results are presented as two dimensional snapshot cross-sections of the three dimensional calibration-site models. These show strong correlations between MASW survey velocities and site geology, geomorphology, fluvial profiles and geotechnical parameters and observations. Correlations are particularly pronounced where high velocity contrasts exist, whilst weaker correlations are demonstrated in softer lithologies. Geomorphic correlations suggest that off-plane deformation can be imaged and interpreted in the presence of suitable topographic survey data. A promising new approach to in situ and laboratory soft-rock material and mass characterisation is also presented using a Ramset nail gun. Geotechnical investigations typically involve outcrop and laboratory scale determination of rock mass and material properties such as fracture density and unconfined compressive strength (UCS). This multi-scale approach is espoused by this study, with geotechnical and S-wave velocity data presented at multiple scales, from survey scale sonic velocity measurements, through outcrop scale scanline and crosshole sonic velocity measurements to laboratory scale property determination and sonic velocity measurements. S-wave velocities invariably increased with decreasing scale. These scaling relationships and strategies for dealing with them are investigated and presented. Finally, the MASW technique is applied to a concealed fault on the Taieri Ridge in Macraes Flat, Central Otago. Here, high velocity Otago Schist is faulted against low velocity sheared Tertiary and Quaternary sediments. This site highlights the structural sensitivity of the technique by apparently constraining the location of the principal fault, which had been ambiguous after standard processing of the seismic reflection data. Processing of the Taieri Ridge dataset has further led to the proposal of a novel surface wave imaging technique termed Swept Frequency Imaging (SFI). This inchoate technique apparently images the detailed structure of the fault-zone, and is in agreement with the conventionally-determined fault location and an existing partial trench. Overall, the results are promising and are expected to be supported by further trenching in the near future.

Images, UC QuakeStudies

A photograph of a workstation in Crack'd for Christchurch's workshop. The workstation includes pieces of broken china, a pair of cutters for breaking up china, a plastic container to hold china pieces, and two mosaic plans. One of the plans has a piece of mesh laid over the top. The other is being used to lay out the mosaic.Crack'd for Christchurch comments, "Marie begins the very first flower. It is so difficult and time consuming that we are all in despair. Will this take forever? No-one is getting paid and we all have jobs and lives in some chaos thanks to the earthquakes."

Images, UC QuakeStudies

A photograph looking east down Cashel Street towards the intersection of Colombo Street. A section of one of the buildings on the left has collapsed and the rubble has spilled onto the street. A van has been crushed by the fallen rubble. The message, 'clear', has been spray-painted on the windscreen of the van. In the foreground signs from several shops are still on the street. There is also earthquake damage to the building on the right. Sections of this building's facade have crumbled and the bricks have spilled onto the street below, damaging the awning.

Images, UC QuakeStudies

Members of the University of Canterbury's Digital Media Group in their temporary office in KB02 in Kirkwood Village, the complex of prefabs set up after the earthquakes to provide temporary office and classroom space for the university. The photographer comments, "The e-learning group and the video conferencing team are now located in the Kirkwood Village at the University of Canterbury. It's a very impressive project, about 60 buildings arranged in various configurations with some used for teaching or computer labs, and others as staff offices. We will probably stay here for several years now. Nick Calvert from the video-conferencing team, Blair and Paul Nicholls behind. Nathan Gardiner with his head in a box".

Images, UC QuakeStudies

A photograph of a sign in the window of a café in Merivale. The sign reads, "To all my very loyal customers, thank you so much for your custom over the past three years. As much as I have enjoyed the previous three years it is time for me to move on especially to spend more time with my two young daughters. On a brighter note, Paul from Chicotis (198 Papanui Road) - I'm sure most of you will already know him - will be taking over very soon and will continue to trade as Chicotis. I wish Paul all the very best and thank you again for your support of Makibo Cafe.

Videos, UC QuakeStudies

A video about businesses in the Christchurch central city Red Zone. The Red Zone has now been renamed the Rebuild Zone. The video shows businesses which have remained untouched since the 22 February 2011 earthquake, including the Camelot Hotel and the i-SITE visitor centre in Cathedral Square, Subway on High Street, Jeans West on High Street, Time Zone on Colombo Street, Comics Compulsion on Manchester Street, Mortgage Solutions mortgage brokers on the corner of Hereford and Manchester Streets, Pocha Bar and Restaurant off Lichfield Street, and a fabric store on Lichfield Street.

Images, UC QuakeStudies

A photograph of Judi Clements (Mental Health Foundation), Elizabeth Goodwin (Strategies with Kids, Information for Parents - a project of the Ministry of Social Development) and Sue Turner (All Right?) holding the cake celebrating the Tiny Adventures campaign. The photograph was taken at the Tiny Adventures launch at Niu Early Learning Centre in Linwood. Niu Early Learning Centre is managed by the Tongan Canterbury Community Trust. The Tiny Adventure card packs and smartphone app offer ideas, games and quick fun ways for parents to spend time with their children. They are a project of the All Right? mental health campaign.

Images, UC QuakeStudies

A photograph of a community member leading a group of children who are playing drums. On the wall behind the man there is a piece of traditional Pacific-island flax weaving. The photograph was taken at the Tiny Adventures launch at Niu Early Learning Centre in Linwood. Niu Early Learning Centre is managed by the Tongan Canterbury Community Trust. The Tiny Adventure card packs and smartphone app offer ideas, games and quick fun ways for parents to spend time with their children. They are a project of the All Right? mental health campaign.

Images, UC QuakeStudies

A photograph of graffiti on one of the walls of the kitchen in Donna Allfrey's house at 406 Oxford Terrace. Parts of the graffiti read, "Quakes, a national disaster", "Recovery, a national disgrace", "'It's been a lot of fun' - John Key, yeah right!", "Brownlee sucks, "Ring fn EQC, ring fn insurance", "Useless fn council", "Sideshow Bob is an idiot", "Don't let the bastards get you down", "Avon Loop - park or developers fodder?", and "Never trust a Carter". There are also shopping and to-do lists scrawled amongst these messages.

Images, UC QuakeStudies

A photograph of graffiti on one of the walls of the kitchen in Donna Allfrey's house at 406 Oxford Terrace. Parts of the graffiti read, "Quakes, a national disaster", "Recovery, a national disgrace", "'It's been a lot of fun' - John Key, yeah right!", "Brownlee sucks, "Ring fn EQC, ring fn insurance", "Useless fn council", "Sideshow Bob is an idiot", "Don't let the bastards get you down", "Avon Loop - park or developers fodder?", and "Never trust a Carter". There are also shopping and to-do lists scrawled amongst these messages.

Videos, UC QuakeStudies

A 'wrap up' video created by All Right? showing their presence at the 2014 SCIRT World Buskers Festival at Hagley Park. The video shows three 'All Righties' interacting with the members of the public and the buskers themselves. All Right? uploaded the video to Youtube on 6 February 2014, and posted the Youtube link to their Facebook Timeline on 10 February 2014 at 10:01am. "Check out the slick wrap up of our All Righties at World Buskers Festival. We love the way they and all the #buskers shared the laughter this January. They also loved cramming themselves into that MINI!" - facebook.com/allrightnz

Images, UC QuakeStudies

Part of Mike Hewson's installation 'Homage To Lost Spaces' in the Cramner Courts building, photographs of people riding bicycles have been inserted into a gap in the building. The photographer comments, "Cranmer Courts was very badly damaged in the quakes that unexpectedly hit Christchurch. Originally big photographs were put into the holes where the doors and windows were, but now these massive pictures have been put across the boarded up ends of the buildings to keep them alive in the minds of the people of Christchurch. The project was thought up by Mike Hewson".

Images, UC QuakeStudies

The sign for Perry's Cafe has had "Shaken but not deterred" added under the name of the cafe. One of the iconic figures of two workmen painted on the side of the building, which have regularly-changed speech bubbles commenting humorously on topical subjects, are saying "Is my crack showing?" The paint has peeled from the other speech bubble, obscuring the reply. The photographer comments, "After the numerous earthquakes in Christchurch a lot of buildings were damaged and made off limits. This affected a lot of cafes and take aways, so if you were open you needed to make it known. The words missing from the speech bubble are 'Don't be silly'".

Images, UC QuakeStudies

People walk and drive along Manchester Street shortly after the 22 February earthquake. Bricks from collapsed buildings litter the road. The photographer comments, "Just after the aftershock settled on Tuesday afternoon, myself and colleagues fled our Tuam Street office to absolute devastation outside. We couldn't see more than a block in either direction due to the clouds of dust that had arisen from buildings that had just collapsed ... From here, we picked up our vehicles from the CCC car park and headed out to get out of the chaos to a position where we could check on loved ones. Heading first along Manchester Street, buildings that were already heavily damaged were now completely written off".

Images, UC QuakeStudies

A car on Rowses Road has its entire front half embedded in liquefaction after falling into a sink hole. Another car has its wheels stuck in the silt. In the foreground, a car drives through flooding which covers the road. The photographer comments, "Perhaps the most impressively stuck car was this small silver hatchback that went head first into a large hole in a street just off Shortland Street (between Shortland and Breezes Road) in Aranui. The rear hatch was open when we came across it. Apparently there had been one person and a dog inside but they managed to escape. The silt has now settled around and inside the car, making the vehicle an intimidating monument to the earthquake".

Images, UC QuakeStudies

Army personnel beside the damaged Colombo Street Wesleyan Church. Danger tape has been stretched across Colombo Street to create a cordon. The photographer comments, "After the 22nd February earthquake, my wife and I spent one night in a tent outside our home and then left to stay with friends in Timaru for a couple of nights. On the way along Brougham Street, we passed the Sydenham Church on the corner of Colombo Street and Brougham Street. As you can see from the photos, the upper area has been extensively damaged. Most of the damage appears to be on the east facing wall although we didn't get much of a look at the other sides or, of course, the interior".

Images, UC QuakeStudies

Damage to the Colombo Street Wesleyan Church. The gable end has partially collapsed, and the window is damaged. The photographer comments, "After the 22nd February earthquake, my wife and I spent one night in a tent outside our home and then left to stay with friends in Timaru for a couple of nights. On the way along Brougham Street, we passed the Sydenham Church on the corner of Colombo Street and Brougham Street. As you can see from the photos, the upper area has been extensively damaged. Most of the damage appears to be on the east facing wall although we didn't get much of a look at the other sides or, of course, the interior".

Images, UC QuakeStudies

A car on Rowses Road has its entire front half embedded in liquefaction after falling into a sink hole. Behind it, another car has its wheels stuck in the silt, and in the background a car drives through flooding. The photographer comments, "Perhaps the most impressively stuck car was this small silver hatchback that went head first into a large hole in a street just off Shortland Street (between Shortland and Breezes Road) in Aranui. The rear hatch was open when we came across it. Apparently there had been one person and a dog inside but they managed to escape. The silt has now settled around and inside the car, making the vehicle an intimidating monument to the earthquake".

Images, UC QuakeStudies

A photograph of signs on a wall in the Christchurch Art Gallery. The signs read, "Final media trip to the CTV building, 15:00 hours, media opportunity with National Controller and rescue services. This is the last scheduled media hour into the red zone", "Media Briefings, Tuesday 8 March: 10:30 hours, Wednesday 9 March: 15:00 hours, in auditorium" and "Please switch off your cell phones before entering media briefings. Thank you". There is also a diagram of the first and ground floor of the art gallery. The Christchurch Art Gallery served as the temporary Civil Defence headquarters after the 22 February 2011 earthquake.

Images, UC QuakeStudies

A photograph of the intersection of Lichfield, Manchester, and High Streets, taken from the corner of Lichfield and High Streets. Emergency management personnel are crossing the intersection. To the right an excavator is parked on Manchester Street in front of the rubble from a demolished building. In the background the ANZ Building has been partially demolished and an excavator is sitting in front. To the right of the excavator there are several chairs, tables, and a couch under a red umbrella. Another member of an emergency management team is sitting on the couch.

Videos, UC QuakeStudies

Aerial footage of Christchurch after the 4 September 2010 earthquake. The footage shows the earthquake damage to Wizard Home Loans & Cartridge World on Riccarton Road, Harding's Chemist and Angus Donaldson Copy Service on Colombo Street, Para Rubber and Westende Jewellers on Manchester Street, The Loaded Hog on Cashel Street, St Mary & St Athanasios Church on Edgeware Road, The Daily Bagel on Victoria Street, the Laxmi Foodstore on Barbadoes Street, Television Services on Westminster Street, The Hat Shop on High Street, St Paul's Parish Church on Gayhurst Road, Sullivan Park on Galbraith Road, and Avonside Drive.

Images, UC QuakeStudies

A photograph of a half-finished flower mosaic. The mosaic has been made out of pieces of broken china which have been laid over a paper design. Mesh has also been placed over the design so that it can be transferred easily to Crack's for Christchurch's concrete chair. Other pieces of china are scattered around the mosaic.Crack'd for Christchurch comments, "Marie begins the very first flower. It is so difficult and time consuming that we are all in despair. Will this take forever? No-one is getting paid and we all have jobs and lives in some chaos thanks to the earthquakes."

Images, UC QuakeStudies

A photograph of conference leaders and presenters at the beginning of the conference, including Terisa Tagicakibau (Community and Public Health; third from left), Losana Korovulavula (Healthy Families New Zealand; middle), Edna Soli (Pacific Trust Canterbury; third from right) and Diane Fenika (Ministry of Pacific Peoples; second from right). The photograph was taken at the second annual Out of the Heart Pacific Women's Leadership Conference, held at Riccarton Racecourse on 21 May 2016. The conference was sponsored by All Right? and featured posters from the All Right? I am ... Identity project.

Images, UC QuakeStudies

A photograph of paper hearts pegged on the cordon fence around the Chinese Methodist Church on Papanui Road. Quotes on the hearts read, "'Even though I walk through the valley of the shadow of death, I will fear no evil for you are with me.' Psalm 23", "'We can do no great things; only small things with great love.' Mother Teresa, and, "'Peace begins with a smile,' Mother Teresa". In the background, the earthquake damage to the Christchurch Chinese Methodist Church can be seen. The wall of the gable has crumbled, the bricks spilling onto the grass below.