Many rockfalls and landslides were triggered by a severe earthquake in Christchurch in 2011, resulting in many damaged homes. Last Sunday the Canterbury Earthquake Recovery Authority (CERA) released a statement, announcing the beginning of the demolition of red-zoned, earthquake-affected buildings, on Monday.
The authority states that it will be a demanding but well-planned task, reassuring the public about the workers' safety. Demolishing buildings on the top of a slope will be very dangerous for the workers, so freight containers will be on site to act as safe zones. Chief executive Roger Sutton said that large water-blasters and controlled explosives will be used. Aerial drones will capture images of the sites. Escape routes will also be identified and spotters will observe the demolition work in order to detect any sign of rockfall. The Government has proposed a buyout offer to the owners of the red-zoned properties and they now have to decide whether to accept it.
See more images from a CERA drone, showing properties in the Cliffton Hill Suburb here.
Sources: blogs.agu.org, The Press
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