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

 


New liquefaction report will help with the rebuild

New liquefaction report will help with the rebuild

Environment Canterbury today released a review of liquefaction information for Christchurch and neighbouring districts outside the green and red zones.

The review report maps areas where building projects will no longer need expensive 15-metre deep ground tests and other areas where these tests will still be required.

The report covers 20 years of liquefaction studies and draws on the experience of the 2010 and 2011 Canterbury earthquakes. Environment Canterbury Commissioner Donald Couch says the report provides an up-to-date assessment of the need for geotechnical investigation of liquefaction-susceptible ground in eastern Canterbury.

“This comprehensive piece of work gives our communities better information for those considering building outside areas already zoned by the Canterbury Earthquake Recovery Authority,” Mr Couch said.

The main purpose of the report is to provide territorial authorities and communities with general guidance on where geotechnical investigation and engineering assessment of liquefaction potential may or may not be required for plan changes, and for subdivision and building consents. It may also be useful for lifeline utility and emergency management planning.

“The report covers the Christchurch City Council area, including Banks Peninsula, and eastern parts of the Waimakariri, Selwyn and Hurunui districts, but does not include other parts of Canterbury or land that has already been zoned by CERA,” Mr Couch said.

“A map in the report shows areas of solid ground where damaging liquefaction is unlikely and areas of more variable ground quality where liquefaction assessment is needed during site investigations.”

This means that for many areas of Canterbury, fewer deep geotechnical investigations will be required than at present, while those that are carried out will be better targeted.

“You might still need a shallower geotechnical investigation for other hazards though – for example, for susceptibility to flooding or land subsidence,” Mr Couch said.

Kelvin Berryman of GNS Science says his organisation, and the Natural Hazards Research Platform he chairs, were pleased to be involved in co-ordinating and funding the report. “I am sure the results of this collaborative effort will be very helpful for the Christchurch rebuild and appropriate building work throughout Canterbury,” Dr Berryman said.

Environment Canterbury has been liaising closely with territorial authorities, CERA and the Ministry of Business, Innovation and Employment to help inform their natural hazards and building consenting activities.

“It is pleasing that this collaborative work is resulting in the development of consistent processes through MBIE’s Building & Housing Guidelines, which now include a section on liquefaction testing specifically taking account of this report,” Donald Couch said.

“The practical effect of this is that costly investigations will no longer be done in areas where they are not needed and will be focused on areas where they can ensure appropriate building solutions. This is the way it should be in helping make sure our buildings are as safe as possible for the future of Canterbury.”

ends

© Scoop Media

 
 
 
 
 
Parliament Headlines | Politics Headlines | Regional Headlines

 

Gordon Campbell: On What John Key Should Be Asking Joe Biden

No doubt, US Vice-President Joe Biden will be updating Prime Minister John Key on the chances of a TPP vote taking place in the ‘ lame duck’ session of Congress that’s held between the November’s election and the inauguration of a new President in January. More>>

ALSO:

Make NZ Make Again: Greens Will Establish A Minister For Manufacturing

The Green Party announced today that it will establish a Minister for Manufacturing in Cabinet, to better represent the interests of manufacturers and ensure they thrive. The Minister will be inside Cabinet and have responsibility for the long-term interests of the manufacturing sector. More>>

ALSO:

Cannabis Party: Treasury Figures On Cost Of Criminalisation

Figures released by Treasury prove the economic viability of The Cannabis Party's policy, while destroying the credibility of police claims about cannabis harms. More>>

ALSO:

Green Party: Investigation Into Mental Health Facilities Shows Disarray

The Health Minister must urgently launch an inquiry into mental health services, after serious issues with the standard of care at mental health and disability facilities around the country were revealed today, the Green Party said. More>>

ALSO:

Apparently He Means 'Years 0-8': Seymour Announces 4th Partnership Schools Application Round

“The continuing growth of this policy reflects the achievement of the eight existing Partnership Schools, and the strong levels of interest educators and community leaders are showing in the Partnership Schools model and what it offers students and their families,” Mr Seymour says. More>>

ALSO:

Trust Directors: Urban Māori Win Case Against Te Ohu Kai Moana

The National Urban Māori Authority (NUMA) and Te Waipareira Trust have succeeded in their claim over a $20 million trust set up for the benefit of urban Māori, meaning all directors of the trust must represent Māori who are not affiliated with an iwi. More>>

New Model: Carbon Tax Could Lower Emissions And Boost Economy

A carbon tax targeting emissions-intensive industries, along with a revamped Emissions Trading Scheme (ETS), could boost economic growth, with the extra tax generated used to cut GST from 15 percent to 12.5 percent. More>>

ALSO:

Budget Docs Release: ACC Sought $158mn In Budget 2016, Got $26.4mn

The Accident Compensation Commission requested an extra $158 million in funding for 2016/17 from the government ahead of Budget 2016, but Treasury instead recommended an interim payment of just $26.4 million be funded to tackle demographic changes, papers published by the government show. More>>

ALSO:

Submissions Sought: Māori Party Joins Opposition Housing Inquiry

People who are homeless, those who were once homeless, those working with the homeless and concerned New Zealanders are being asked to share their experiences and solutions to this growing issue with the Cross-Party Homelessness Inquiry. More>>

ALSO:

Get More From Scoop

 

LATEST HEADLINES

 
 
 
 
 
 
 
 
 
Regional
Search Scoop  
 
 
Powered by Vodafone
NZ independent news