Local Govt | National News Video | Parliament Headlines | Politics Headlines | Search

 


TRex heading to New Zealand to test Christchurch’s soils

TRex heading to New Zealand to test Christchurch’s soils

February 7, 2013

The world’s largest seismic vibration truck called TRex is on its way to New Zealand to test Christchurch’s ground.

In a collaborative research project between the University of Canterbury (UC) and University of Texas, Austin, the 29,000kg truck will arrive in Christchurch next month to carry out tests. It will be the first time that it has been operated outside of the USA.

TRex will be used to determine the properties of soils from the ground surface to depths of 250 metres by applying small vibrations and recording them with an array of instruments.

UC earthquake engineer Dr Brendon Bradley said an understanding of Christchurch’s soil properties at great depths was important because it impacted how seismic waves were amplified, reflected, and refracted as they travelled up to the earth’s surface.

``The ground motion recorded in the February 11 2011 earthquake illustrated significant basin-effects. These were caused by reverberations of the soft sedimentary soils that Christchurch is founded on.

``Using state of the art information on soil properties throughout Christchurch obtained by TRex and previous testing we can begin to link cause and effect and better understand where such effects will occur elsewhere during future earthquakes worldwide,’’ Dr Bradley said.

UC’s Professor Misko Cubrinovski said that TRex would provide invaluable data on the seismic properties of soils and their liquefaction resistance.

``This is one of the several major collaborative projects on the Canterbury earthquakes between New Zealand and US researchers, which are supported by the National Science Foundation in the US, EQC and the Natural Hazards Research Platform.

The testing will begin on March 11 at 15 sites around Christchurch under the auspices of the Canterbury Earthquake Recovery Authority and the Christchurch City Council. The public are invited to witness the testing during two days at QEII Park on March 14 and at Ilam Fields on March 21. TRex will also make an appearance at the opening of UC’s Quake Centre on March 21.

Dr Brady Cox, one of several University of Texas people who will travel to New Zealand, said the vibrations produced by the truck would be imperceptible beyond 15 metres.

ENDS

© Scoop Media

 
 
 
 
 
Parliament Headlines | Politics Headlines | Regional Headlines

Election Day: National Win

With all votes counted National and John Key have won a third term and are close to being able to govern alone if they so choose.

Key has indicated he will still reach out to form a Government with ACT, United Future and Maori Party.

National ended the night on 48 percent, Labour 24.6 and the Greens 10. Though special votes might change the margins it is certainly a third term victory for Key defying the political gravity which usually hits parties seeking a third term. Increasing National’s party share is a remarkable political achievement...More>>

Overall Results | Live Results | Predictions |

 


Perfectly-Timed Anniversaries: Suffrage Day Is Last Chance To Enrol

“The last chance to enrol is Friday 19 September. You can’t enrol on election day.” More>>

ALSO:

Gordon Campbell: On First Time Voting (Greens)

For the last two days, I’ve turned my column over to a couple of guest columnists who are first time voters… Today’s guest columnist is Ana Avia-O’Connor, who will be casting her first time vote on Saturday for the Greens. More>>

ALSO:

Meddling: Aussie Liberals Embroiled In Key Campaign

John Key needs to explain why Australia’s Liberal Party is interfering in New Zealand domestic politics and is encouraging Kiwi voters across the ditch to vote for National just days out from the election, Labour’s campaign spokesperson Annette King says. More>>

ALSO:

SURVEILLANCE:

Election Ad Soundtrack: Rapper Eminem Sues National Party Over Copyright Breach

US rapper Eminem is suing the New Zealand National Party for alleged copyright infringement over unauthorised use of the rapper’s ‘Lose Yourself’ song in an election campaign advertisement. More>>

ALSO:

Big March: Call For An End To Domestic Violence

Hundreds of protesters marched down Lambton Quay to Parliament Monday calling for an end to domestic violence. Wearing white facemasks, waving banners and calling for “safety” for the women and children of New Zealand.. More>>

ALSO:

Pre-Election Chartering: Four New Partnership Schools To Open

Education Minister Hekia Parata today announced the Government has signed contracts to open four new Partnership Schools in 2015. More>>

ALSO:

Werewolf 50 Out Now - The Election Issue: Loss Leaders

Gordon Campbell: A third term requires a mature decision, with eyes wide open. It calls for a conscious vote of confidence… Without trying hard here are about 19 reasons, in no particular order, for not ticking ‘party vote’ National. More>>

ALSO:

Not-Especially New Plans: All Prisons To Become Working Prisons Under National

All public prisons in New Zealand will become full working prisons by 2017, and ex-prisoners will receive post-release drug addiction treatment if National is returned to government, says Corrections Spokesperson Anne Tolley. More>>

ALSO:

Māngere: "False Claim Of Matai Title" - Labour

National must explain why its candidate for Māngere Misa Fia Turner appears to be using a Matai title she is not entitled to, Labour’s MP for Māngere and Pacific Islands Affairs spokesperson Su’a William Sio says. A Matai title is a legally-recognised ... More>>

ALSO:

CPAG Report: No New Zealand Child Should Grow Up In Poverty

Child Poverty Action Group's flagship policy publication Our Children, Our Choice: Priorities for Policy calls for cross party political agreement to underpin an action plan to eliminate child poverty in New Zealand. More>>

ALSO:

Get More From Scoop

 

LATEST HEADLINES

 
 
 
 
 
 
 
 
Regional
Search Scoop  
 
 
Powered by Vodafone
NZ independent news