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Images for Christchurch libraries; more images...

Images, Alexander Turnbull Library

The cartoon depicts the Minister of Earthquakes Gerry Brownlee, with a portaloo in place of a head. He holds in his hand a document which reads 'Govt appointed quake panel (Shipley etc) paid twice normal fees: $1000 - 1400 daily'. A voice from inside the toilet says 'It's because they're high calibre people!' Context: Earthquake Recovery Minister Gerry Brownlee lobbied his colleagues to pay a Government-appointed panel more than twice the recommended rate because he claimed they would not do it for less - even though he never asked them. On Mr Brownlee's advice, the Cabinet more than doubled the pay rates for the panel from the recommended fees, which was a daily rate of $360 to $655 for the panel chairman and $270 to $415 for panel members. The Cabinet increased this to $1400 a day for the chairman and $1000 a day for the other members. (NZ Herald, 9 August 2011) Quantity: 1 digital cartoon(s).

Images, Alexander Turnbull Library

The Earthquake Commission calls a householder and tells him the 'good news' that his house which was left by the earthquakes in 'such an angle you couldn't live in it' has been refloated by the recent heavy rain and is now level again. The 'bad news' is that the house was last seen floating in the sea off Sumner. In June 2013 heavy rains had caused flooding in Canterbury. Christchurch was affected especially in the liquefaction prone areas, where the ground had sunk because of the earthquakes. Colour and black and white versions available Other Titles - Evans, Malcolm Paul, 1945-:"Established in a conservation estate...likely to harm our unique flora and fauna..." 31 May 2013 Quantity: 2 digital cartoon(s).

Images, Alexander Turnbull Library

The scene shows a tract of land with a jagged crack running through it. An arm representing the 'Council' reaches out of the crack and points a finger. Someone from the 'Tibetan Community' whose head cannot be seen says 'Surely you can lift finger higher than that?' Context: The Dalai Lama visited Christchurch after the earthquakes but The Dalai Lama's New Zealand representative is accusing the Christchurch City Council of snubbing the spiritual leader during his visit, suggesting ties with China are to blame. In a letter to Christchurch Mayor Bob Parker, New Zealand Tibetan community representative Thuten Kesang said he was disappointed the council "did not lift a finger to help" the Dalai Lama during his visit to the earthquake-hit city in June. Christchurch has a sister-city relationship with the Chinese Gansu Province and Wuhan City. Kesang said he believed this relationship made the council reluctant to engage with the exiled Tibetan leader. (Press - 10 August 2011) Quantity: 1 digital cartoon(s).

Images, Alexander Turnbull Library

Two huge wrestlers, one representing 'Port Hills fault' and the other 'Greendale fault' struggle together over a broken Christchurch. Another wrestler, representing 'Other faults' appears in the distance yelling 'Is it my turn yet?' Context - Christchurch has now had three major earthquakes and thousands of aftershocks. It now appears likely that the Christchurch quakes resulted from activity on a fault extending directly eastward from the Alpine fault that remained unknown until last year, says Roger Musson, a seismologist at the British Geological Survey in Edinburgh. The new fault first came to light last September (4th) when a stronger but less calamitous quake shook Darfield, 40 kilometres west of Christchurch. Musson says the latest quake (Feb 22, 2011) probably resulted from an eastward continuation of activity on the same fault. "It has probably not moved for tens of thousands of years, so lots of strain built up," says Musson. The third major quake happened on 13th June 2011. (New Scientist - February 22, 2011) Quantity: 1 digital cartoon(s).

Images, Alexander Turnbull Library

The cartoon shows the Christchurch Anglican Cathedral tower in ruins and without its steeple. Above the drawing is the date '22.2.11'. A second version shows a huge magnitude 6.3 earthquake tremor on a seismic graph on top of which is the date '22.2.11'. Context - On 22 February 2011 at 12:51 pm (NZDT), Christchurch experienced a major magnitude 6.3 earthquake, which resulted in severe damage and many casualties. A National State of Emergency has been declared. The cathedral tower has collapsed and there has been devastating damage to the remaining structure. The Cathedral is one of around six sites of extreme concern around the city where many are believed to still be trapped. This earthquake followed on from an original magnitude 7.1 earthquake on 4 September 2010 which did far less damage and in which no-one died. Two versions of this cartoon are available Quantity: 2 digital cartoon(s).

Images, Alexander Turnbull Library

A worried Hekia Parata, Minister of Education, tells John Key, the Prime Minister, that schools in Canterbury are resisting being merged. John Key replies that the government will go through a 'consultation process' and then 'do what we like'. However the schools are claiming marae status and thus protection under the Treaty of Waitangi. The 'Hui report' which the Prime Minister is holding confirms this fear. The Ministry of Education, given the excuse of the Canterbury earthquakes, announced that many schools there will be merged or closed. Threatened schools, particularly the two Maori language schools, lodged complaints with the Waitangi Tribunal. 'Hui reports' refers to the claims and resulting hui over the water rights of the proposed partial privatisation of state assets. Colour and black and white versions available Quantity: 2 digital cartoon(s).

Images, Alexander Turnbull Library

Refers to the controversy over the decision to demolish the Christchurch Cathedral which was severely damaged in the earthquakes of 2010 and 2011. The Anglican Bishop of Christchurch Victoria Mathews says the decision to demolish the cathedral was reached through prayer, great deliberation and with the utmost concern for safety. The Bishop says a number of options were considered before deciding to bring the walls down but the turning point was 23 December 2011, when a series of strong quakes rocked the city. At that stage the Canterbury Earthquake Authority approached the church. "CERA told us that our plans for making safe and retrieving, and then stepping back and making further decisions were no longer adequate." Christchurch City council announced their support on Twitter this afternoon (17 May 2012) - tweeting an endorsement to an immediate pause on demolition of the Cathedral to enable deeper and more open consideration of options. Quantity: 1 digital cartoon(s).

Images, Alexander Turnbull Library

The cartoon shows the word 'Christchurch' with 'church' crossed out and replaced with 'mess'. A second version has the word 'scary' added. A third version has the word 'church' replaced by 'mas'. A fourth version has the words 'early' and 'presence' included and 'church' is replaced by 'mess'. Context: concern about continuing trials and tribulations of Christchurch with unremitting earthquakes and aftershocks. Four versions of this cartoon are available Quantity: 4 digital cartoon(s).

Images, Alexander Turnbull Library

Text reads 'Pet of the day... ' Below is a notice tacked to a wall which has an image of a cat wearing spectacles on it. Text reads 'LOST. Large moggy, last seen roaming in Christchurch. Answers to the name of "Gerry" or "Dinners ready". Has a loud purr, looks cuddly but can turn...' Context: This is a reference to Gerry Brownlee, the Minister for Earthquake Recovery. When National announced its offer based on the 2007 rating valuation to red-zone property owners on 23 June, Gerry Brownlee specifically told people who had made improvements between the time of the valuation and the September quake to 'keep their receipts'. The offer from CERA dated August 19 now says quite clearly that people can only seek an adjustment to the purchase price if the rating valuation is based on an incorrect floor area, or if 'you have received a code compliance certificate for consented building work undertaken after the rating valuation and that work increased the floor area of your house'. (Voxy - 23 August 2011) Quantity: 1 digital cartoon(s).

Images, Alexander Turnbull Library

Text above the image reads 'Time capsules unearthed in Christchurch' A man reads a newspaper which says 'Petrol is so cheap you can actually afford to run one of these new-fangled motor cars...' Context - when a bronze statue of Christchurch founder John Robert Godley, which stood in Cathedral Square, toppled during the Christchurch earthquake of 22 February 2011, a crane driver clearing rubble discovered two time capsules. One is a small glass capsule with a hand-written letter on gold parchment inside, while the other is a large metal-like object, yet to be opened. A Nelson newspaper 'The Colonist' in an article published in 1918, about the time capsule in Christchurch said, "This statute of John Robert Godley executed by Thomas Woolner was erected in the west side of the Cathedral Square by the Provincial Government of Canterbury, and unveiled by the late Sir Charles Christopher Bowen on August 6 1867, it was moved to this site in March 1918." The man in the cartoon reads a bout the cost of petrol being incredibly cheap and thinks it refers to today's prices. Quantity: 1 digital cartoon(s).

Images, Alexander Turnbull Library

Text above the image reads 'Time capsule discovered under founder's statue-' The statue of John Robert Godley, the founder of Christchurch, has toppled and a time capsule has been uncovered in the rubble by three rescue workers. One of them reads the document he has pulled out of the capsule and it says 'Personally I favoured Akaroa...' Context - the Christchurch earthquake of 22 February 2011 after which 2 time capsules were found under the John Robert Godfrey statue - they have been sent to Museum experts to open. Akaroa was largely unaffected by the earthquake. A Nelson newspaper 'The Colonist' in an article published in 1918 about the time capsule in Christchurch said, "This statute of John Robert Godley executed by Thomas Woolner was erected in the west side of the Cathedral Square by the Provincial Government of Canterbury, and unveiled by the late Sir Charles Christopher Bowen on August 6 1867, it was moved to this site in March 1918." (3 News 2 March 2011) Colour and black and white versions available Quantity: 2 digital cartoon(s).

Images, Alexander Turnbull Library

Text at the top of the cartoon reads 'News - A "Moon man non-event lunch" will be held above Christchurch to defy quake predictions for that day'. In tea rooms on hills above Christchurch a group of people enjoy lunch as they defy precaution against a predicted earthquake. They order a 'pot o' tea', 'pie & chips', 'sandwich & coke' and a 'shake & roll'; above in a black and thunderous cloud God thinks he heard someone request a shake & a roll'. Context - After the two big earthquakes in Christchurch on 4 September 2010 and 22 February 2011, the so-called Moon Man Ken Ring is backing away from his prediction that Christchurch will be whacked by a huge earthquake today (20 March 2011). His claims have terrified Cantabrians and led to people fleeing Christchurch. M.P. Nick Smith and the Skeptics Society are planning a lunch in one of Christchurch's highest, oldest, stone buildings - on the day that "moon man" Ken Ring says the city will be hit by another devastating earthquake ; the lunch will be held at noon on March 20 at the Sign of the Kiwi, on the top of the Port Hills - which Smith said was the closest building to the epicentre of the February 22 quake. Quantity: 1 digital cartoon(s).

Images, Alexander Turnbull Library

The cartoon shows Christchurch obscured by ash. Text reads 'Christchurch recovery package' and below are the words 'Cash cloud'. Context - Beginning on the 6th of June the Puyehue-Cordon Caulle volcano has been erupting for more than a week. Drifting ash clouds have been interupting flights. On Thursday 23 June Prime Minister John Key, Canterbury Earthquake Recovery Minister Gerry Brownlee and representatives from engineering consultants Tonkin & Taylor announced the first part of the Government's long-awaited land report that revealed the fate of up to 5000 quake-damaged homes. These homes were in the 'red zone'. But 10,500 owners in the orange zone were left in limbo, with their properties requiring further assessment. One of the options presented to residents in the red zone, ideal for people with replacement policies, was the government bought your land, and you dealt directly with your insurers about your house. However they got a shock when insurers told them they won't replace their homes, they'll only repair them, even though they're earmarked for certain demolition. Quantity: 1 digital cartoon(s).

Images, Alexander Turnbull Library

Finance Minister Bill English scratches his head with frustration as he stands up to his chest in earthquake rubble that represents the 'economy'. Allan Bollard the Governor of the Reserve Bank appears in gumboots asking if he can 'help with rebuilding..? by making an 'OCR cut'; he holds a collection box labeled 'OCR cut'. Context - Two earthquakes and hundreds of aftershocks have hit Christchurch, the first on 4 September 2010 and a second more devastating one on 22 February 2011. The Reserve Bank has made a relatively large 50-point cut in its benchmark interest rate, the Official Cash Rate (from 3% to 2.5 per cent). Critics say that inflation is already running unacceptably high and there is a threat of much higher inflation in a year or two when the rebuilding of Christchurch begins to put pressure on limited resources. The Reserve Bank acknowledged these factors, but it has chosen instead to focus on the immediate impact of the earthquake on the economy and particularly on all-important business and consumer sentiment. (Press editorial 12 March 2011) Quantity: 1 digital cartoon(s).

Images, Alexander Turnbull Library

Prime Minister John Key drives a tractor to which is attached a crane and a huge demolition ball in the shape of MP Gerry Brownlee's head; the ball smashes against a historic building bringing stone pediments down. Context - Gerry Brownlee, who is Earthquake Recovery Minister, has caused a stir by suggesting that if he had his way some of Christchurch's older buildings would be "down tomorrow". He also said the price of saving some historic buildings badly damaged in the February 22 earthquake was too high. People had died in the quake because of attempts to save historic buildings badly damaged in the September 4 quake. Brownlee said he had no regrets despite the stir his comments caused - but he was annoyed by suggestions the Cathedral and Riccarton House were among buildings he thought should be bowled. He believed those buildings should be saved, and they would be. "I'm not a philistine; I was chairman of the trust that actually saved Riccarton House from the bulldozers in 1990. "I understand conservation architecture very well and I do have an appreciation of heritage buildings." Original cartoon held at A-474-048 Quantity: 1 digital cartoon(s).

Images, Alexander Turnbull Library

The cartoon shows a monstrous machine with an enormous crushing ball attached to a giant crane. It moves past a signpost that points towards Christchurch. A man watches and tells his friend 'Gerry Brownlee borrowed it from Auckland! Context - Brownlee has caused a stir by suggesting that if he had his way some of Christchurch's older buildings would be "down tomorrow". He also said the price of saving some historic buildings badly damaged in the February 22 earthquake was too high. People had died in the quake because of attempts to save historic buildings badly damaged in the September 4 quake. Brownlee said he had no regrets despite the stir his comments caused - but he was annoyed by suggestions the Cathedral and Riccarton House were among buildings he thought should be bowled. He believed those buildings should be saved, and they would be. "I'm not a philistine; I was chairman of the trust that actually saved Riccarton House from the bulldozers in 1990. "I understand conservation architecture very well and I do have an appreciation of heritage buildings." Colour and black and white versions available Quantity: 2 digital cartoon(s).

Images, Alexander Turnbull Library

Cartoons about political and social issues in New Zealand and overseas. The cartoon has the words 'Tsunami Warning cancelled' in the centre. Above are the words 'The end is nigh... insurance running out! No more cover!' Below the word 'cancelled' are the words 'We have reinsurance!' Context - Civil Defence has cancelled a tsunami warning after a 7.8 magnitude earthquake struck off the Kermadec Islands this morning (7 July 2011) The tsunami image is used to illustrate the problems that could arise from lack of insurance in Christchurch. When their policies run out on 30 June Earthquake-hit Christchurch and Waimakariri councils are in danger of having no property insurance because as the CEO of Civic Assurance, which insures most councils, says, 'the company cannot buy reinsurance'. There was also a potential problem for home-owners when AMI Insurance, the largest insurer of homes in Christchurch, was threatening insolvency. However, AMI has announced that it has re-insurance cover for earthquakes and other natural disasters from tomorrow (1 July 2011) for the next year. The Government feared AMI Insurance's directors would wind up the company affecting a huge section of New Zealand's insurance market and derail the reconstruction of Christchurch, official documents confirm. AMI said it had doubled its cover for the year to June 2012 after three large quakes in the year to June 2011. (Stuff 30 June 2011) Quantity: 1 digital cartoon(s).

Images, Alexander Turnbull Library

The cartoon is entitled 'seismic upheaval'. Prime Minister John Key and Finance Minister Bill English stand near great seismic cracks in the ground and stare sadly at a huge wallet, 'Bill's boodle', belonging to Bill English. Vast quantities of banknotes spill out of the cash pocket in the wallet which also contains a 'travel card', a 'house card' and an 'expenses card'. The various cards in the wallet refer to expense account embarrassments relating to Bill English. Etched in the ground are the words 'Christchurch quake' and 'South Canterbury Finance'. The cartoon refers to two major events in the Canterbury area in recent times that have incurred huge government costs; these are the collapse of the South Canterbury Finance Company and the earthquake that struck early Saturday morning 4th September. The South Canterbury Finance Company has been taken into receivership by the government which has guaranteed that all 30,000 fortunate high-risk investors will be paid out $1.6b thanks to the taxpayer. Treasury is assuming that the cost of the earthquake will reach $4 billion, including $2 billion worth of estimated damage to private dwellings and their contents, $1 billion of damage to commercial property, and $1 billion worth of damage to public infrastructure. Quantity: 1 digital cartoon(s).

Research papers, University of Canterbury Library

Novel Gel-push sampling was employed to obtain high quality samples of Christchurch sands from the Central Business District, at sites where liquefaction was observed in 22 February 2011, and 13 June 2011 earthquakes. The results of cyclic triaxial testing on selected undisturbed specimens of typical Christchurch sands are presented and compared to empirical procedures used by practitioners. This comparison suggests cyclic triaxial data may be conservative, and the Magnitude Scaling Factor used in empirical procedures may be unconservative for highly compressible soils during near source moderate to low magnitude events. Comparison to empirical triggering curves suggests the empirical method generally estimates the cyclic strength of Christchurch sands within a reasonable degree of accuracy as a screening evaluation tool for liquefaction hazard, however for sands with moderate to high fines content it may be significantly unconservative, highlighting the need for high quality sampling and testing on important projects where seismic performance is critical.

Research papers, University of Canterbury Library

The Canterbury Earthquake Sequence (CES) was a monumental natural disaster in Aotearoa New Zealand that permanently altered Ōtautahi Christchurch’s geography. Following the earthquake events, the central city was in need of recovery and regeneration to return to being an enhanced and thriving space. The Christchurch Central Recovery Plan (CCRP) was developed to outline the aspirations, visions and challenges associated with rebuilding the central city. The purpose of this research was to review the current status of the CCRP, with a particular focus on identifying the projects that have or have not progressed. This research sought to understand which aspects of a post-disaster recovery plan have contributed to successful post-disaster recovery in Ōtautahi Christchurch. Secondary data was used to identify successes and failures in this regard. The results highlighted the top-down approach taken by the central government in the recovery process and a notable lack of community engagement throughout the CCRP. However, there were some projects and aspirations that have enabled Ōtautahi Christchurch to become a thriving city and express its regenerated identity at a local, national, and international level.

Images, Alexander Turnbull Library

The cartoon shows the hands of two people joined in mutual despair and kindness. One represents 'Christchurch' and the other the 'Pike River Mine'. Context - the 7.1 earthquake on 4 September 2010 in Christchurch in which there was a lot of damage but no deaths, the Pike River Mine disaster which occurred on the West Coast on 19 November 2010 and caused the deaths of 29 coal miners and now on 22 February 2011 a 6.3 magnitude earthquake in Christchurch which has probably killed more than 200 people (at this point the number is still not known) and caused much more severe damage. The reason the apparently lesser magnitude quake caused more destruction is because it was very shallow, was in the middle of the day and struck very close to the centre of the city. Colour and black and white versions of this cartoon are available Quantity: 2 digital cartoon(s).

Other, National Library of New Zealand

Site of Christchurch-based handmade denim clothing company. Includes details of available stock, fitting guides, and photo gallery. Archive section of the site shows production models available prior to the Christchurch Earthquake.

Research papers, University of Canterbury Library

Over 900 buildings in the Christchurch central business district and 10,000 residential homes were demolished following the 22nd of February 2011 Canterbury earthquake, significantly disrupting the rebuild progress. This study looks to quantify the time required for demolitions during this event which will be useful for future earthquake recovery planning. This was done using the Canterbury Earthquake Recovery Authority (CERA) demolition database, which allowed an in-depth look into the duration of each phase of the demolition process. The effect of building location, building height, and the stakeholder which initiated the demolition process (i.e. building owner or CERA) was investigated. The demolition process comprises of five phases; (i) decision making, (ii) procurement and planning, (iii) demolition, (iv) site clean-up, and (v) completion certification. It was found that the time required to decide to demolish the building made up majority of the total demolition duration. Demolition projects initiated by CERA had longer procurement and planning durations, but was quicker in other phases. Demolished buildings in the suburbs had a longer decision making duration, but had little effect on other phases of the demolition process. The decision making and procurement and planning phases of the demolition process were shorter for taller buildings, though the other phases took longer. Fragility functions for the duration of each phase in the demolition process are provided for the various categories of buildings for use in future studies.

Research papers, University of Canterbury Library

Liquefaction during the 4th September 2010 Mw 7.1 Darfield earthquake and large aftershocks in 2011 (Canterbury earthquake sequence, CES) caused severe damage to land and infrastructure within Christchurch, New Zealand. Approximately one third of the total CES-induced financial losses were directly attributable to liq- uefaction and thus highlights the need for local and regional authorities to assess liquefaction hazards for present and future developments. This thesis is the first to conduct paleo-liquefaction studies in eastern Christchurch for the purpose of de- termining approximate return times of liquefaction-inducing earthquakes within the region. The research uncovered evidence for pre-CES liquefaction dated by radiocarbon and cross-cutting relationships as post-1660 to pre-1905. Additional paleo-liquefaction investigations within the eastern Christchurch suburb of Avon- dale, and the northern township of Kaiapoi, revealed further evidence for pre-CES liquefaction. Pre-CES liquefaction in Avondale is dated as post-1321 and pre-1901, while the Kaiapoi features likely formed during three distinct episodes: post-1458 and possibly during the 1901 Cheviot earthquake, post-1297 to pre-1901, and pre-1458. Evaluation of the liquefaction potential of active faults within the Can- terbury region indicates that many faults have the potential to cause widespread liquefaction within Avondale and Kaiapoi. The identification of pre-CES liquefac- tion confirms that these areas have previously liquefied, and indicates that residen- tial development in eastern Christchurch between 1860 and 2005 occurred in areas containing geologic evidence for pre-CES liquefaction. Additionally, on the basis of detailed field and GIS-based mapping and geospatial-statistical analysis, the distribution and severity of liquefaction and lateral spreading within the eastern Christchurch suburb of Avonside is shown in this study to be strongly in uenced by geomorphic and topographic variability. This variability is not currently ac- counted for in site-specific liquefaction assessments nor the simplified horizontal displacement models, and accounts for some of the variability between the pre- dicted horizontal displacements and those observed during the CES. This thesis highlights the potential applications of paleo-liquefaction investigations and ge- omorphic mapping to seismic and liquefaction hazard assessments and may aid future land-use planning decisions.

Research papers, University of Canterbury Library

Christchurch and Canterbury suffered significant housing losses due to the earthquakes. Estimates from the Earthquake Commission (EQC) (2011) suggest that over 150,000 homes (around three quarters of Christchurch housing stock) sustained damage from the earthquakes. Some areas of Christchurch have been declared not suitable for rebuilding, affecting more than 7,500 residential properties.

Research papers, University of Canterbury Library

Current research in geotechnical engineering at the University of Canterbury includes a number of laboratory testing programmes focussed on understanding the behaviour of natural soil deposits in Christchurch during the 2010-2011 Canterbury Earthquake Sequence. Many soils found in Christchurch are sands or silty sands with little to no plasticity, making them very difficult to sample using established methods. The gel-push sampling methodology, developed by Kiso-Jiban Consultants in Japan, was developed to address some of the deficiencies of existing sampling techniques and has been deployed on two projects in Christchurch. Gel push sampling is carried out with a range of samplers which are modified versions of existing technology, and the University of Canterbury has acquired three versions of the tools (GP-S, GP-Tr, GP-D). Soil samples are extracted from the bottom of a freshly drilled borehole and are captured within a liner barrel, close to 1m in length. A lubricating polymer gel coats the outside of the soil sample as it enters the liner barrel. The frictional rubbing which normally occurs on the sides of the soil samples using existing techniques is eliminated by the presence of the polymer gel. The operation of the gel-push samplers is significantly more complicated than conventional push-tube samplers, and in the initial trials a number of operational difficulties were encountered, requiring changes to the sampling procedures. Despite these issues, a number of high quality soil samples were obtained on both projects using the GP-S sampler to capture silty soil. Attempts were made to obtain clean sands using a different gel-push sampler (GP-TR) in the Red Zone. The laboratory testing of these sands indicated that they were being significantly disturbed during the sampling and/or transportation procedures. While it remains too early to draw definitive conclusions regarding the performance of the gel-push samplers, the methodology has provided some promising results. Further trialling of the tools are required to refine operating procedures understand the full range of soil conditions which can be successfully sampled using the tools. In parallel with the gel-push trials, a Dames and Moore fixed-piston sampler has been used by our research partners from Berkeley to obtain soil samples at a number of sites within Christchurch. This sampler features relatively short (50cm), thin-walled liner barrels which is advanced into the ground under the action of hydraulic pressure. By reducing the overall length of the soil being captured, the disturbance to the soil as it enters the liner barrel is significantly reduced. The Dames and Moore sampler is significantly easier to operate than the gel-push sampler, and past experience has shown it to be successful in soft, plastic materials (i.e. clays and silty clays). The cyclic resistance of one silty clay obtained using both the gel-push and Dames & Moore samplers has been found to be very similar, and ongoing research aims to establish whether similar results are obtained for different soil types, including silty materials and clean sands.