
Overview of the Presentation Jarg: • The seismic context & liquefaction Tom: • Potable Water Supply • Waste Water Network
A map showing the extent of liquefaction caused by the 22 February 2011 earthquake.
Liquefaction lessons from the 2011 Christchurch earthquake, and biotechnologists doing interesting things with plants.
Photograph captioned by Fairfax, "Earthquake in Christchurch. Damage and liquefaction around the city's boundary".
Liquefaction surrounding the wheels of a car parked on the side of a street.
The road and footpath are covered in silt from liquefaction in a residential area.
The road and footpath are covered in silt from liquefaction in a residential area.
The road and footpath are covered in silt from liquefaction in a residential area.
The road and footpath are covered in silt from liquefaction in a residential area.
Dried liquefaction silt in North New Brighton. The photographer comments, "This is the result of liquefaction which spewed out after the double earthquake in Christchurch. Having flowed into a shallow depression that was deep enough for a fair quantity of the silty liquid to settle and separate: the heavy sand below and a talcum powder like substance on top. Some of these are so delicate that a mouse crossing them would probably crack them. Here the sun has dried them out and they have contracted and curled up towards their centres".
Workers use a large water-blasting pipe to clear blocked drains. The photographer comments, "The Australian company Barry Bros Turned up very late at night to clean out our street drains of liquefaction".
Photograph captioned by Fairfax, "Volunteers help clean up liquefaction on Acland Avenue. Volunteer Ewart Ward".
Photograph captioned by Fairfax, "Volunteers help clean up liquefaction on Acland Avenue. Volunteer Tom Hutchison
Photograph captioned by Fairfax, "Volunteers help clean up liquefaction on Acland Avenue. Volunteer Tom Hutchison
Photograph captioned by Fairfax, "Volunteers help clean up liquefaction on Acland Avenue. Volunteer Ewart Ward".
The road, driveway and footpath are covered in silt from liquefaction in a residential area.
The road, driveway and footpath are covered in silt from liquefaction in a residential area.
The road, driveway and footpath are covered in silt from liquefaction in a residential area.
The road, driveway and footpath are covered in silt from liquefaction in a residential area.
The road, driveway and footpath are covered in silt from liquefaction in a residential area.
The road, driveway and footpath are covered in silt from liquefaction in a residential area.
Build up of liquefaction that has seeped from the ground onto the road and footpath.
The road, driveway and footpath are covered in silt from liquefaction in a residential area.
Liquefaction and buckled tarmac on a residential street in North New Brighton. The photographer comments, "In the February 2011 earthquake in Christchurch the kerb at the end of my road was pushed from both ends. This caused it to move away from the grass verge and push itself under the tarmac. The tarmac would normally have been 3 inches below the top of the kerb. Between the kerb and the grass can be seen the colour of the liquefaction that spewed out from the ground. The tarmac in the area seemed to flow downhill".
A residential street in New Brighton. Liquefaction still lines the street, and lampposts are leaning in different directions. The photographer comments, "This is the New Brighton red zone, which is parallel to the Avon River. The area suffered serious liquefaction during the numerous earthquakes/aftershocks and the land is being bought by the government. Although the houses do not look too bad in the background they have suffered badly. On the day I took this picture the council had just hours before cut the grass, which made the area look less abandoned".
A pond in Hagley Park, some dried liquefaction are visible at the edges of the pond.
A pond in Hagley Park, some dried liquefaction are visible at the edges of the pond.
Photograph captioned by Fairfax, "Volunteers help clean up liquefaction on Acland Avenue. Volunteer Ewart Ward (right)".
Silt from liquefaction outside the Merivale Mall. Some sections of the street have been cordoned off.
Photograph captioned by Fairfax, "The 800-strong student army helps residents of Rebecca Avenue, Burwood clean up several feet of liquefaction after Tuesday's massive earthquake. Pictures to accompany story by reporter Blair Ensor. Christchurch Earthquake aftermath - day four."