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Images for LIQUEFACTION; more images...
22 February Earthquake - Photograph 50
Images, UC QuakeStudies
Liquefaction silt covers the ground in front of the Shirley Medical Centre, and more silt is piled beside the entrance. The photographer comments, "These photos show our old house in River Rd and recovery work around Richmond and St Albans. The local medical centre is seriously silted up".
Photo by Jennifer Middendorf 051
Images, UC QuakeStudies
Warped bike stands and liquefaction silt on the corner of High, Colombo and Hereford streets. A public walkway down Colombo Street to a small viewing area in the Square was opened up for a few weekends to allow the public to see inside the Red Zone.
22 February Earthquake - Photograph 49
Images, UC QuakeStudies
Liquefaction silt covers the ground in front of the Shirley Medical Centre, and more silt is piled beside the entrance. The photographer comments, "These photos show our old house in River Rd and recovery work around Richmond and St Albans. The local medical centre is seriously silted up".
BeckerFraserPhotos May 2013 photograph 102
Images, UC QuakeStudies
An abandoned residential property at 32 Waygreen Avenue in New Brighton. The front of the section is overgrown with weeds and silt from liquefaction. One brick fence posts remain upright and two others have toppled onto the grass. The gutter has partly flooded.
BeckerFraserPhotos May 2013 photograph 108
Images, UC QuakeStudies
A view looking south down Waygreen Avenue in New Brighton. The footpath is covered with weeds and silt from liquefaction. Flooding can be seen along the edges of the road. A road cone stands in the middle of the road.
BeckerFraserPhotos May 2013 photograph 090
Images, UC QuakeStudies
An abandoned residential property at 16 Waygreen Avenue in New Brighton. The front of the section is covered with weeds and silt from liquefaction. A pram, a baby's car seat, a skateboard, and a hose have been left in the driveway.
BeckerFraserPhotos May 2013 photograph 084
Images, UC QuakeStudies
An abandoned residential property at 12 Waygreen Avenue in New Brighton. The section is covered with weeds and silt from liquefaction. A section of the driveway is partly flooded. Splinters of wood from the broken fence lie on the driveway.
BeckerFraserPhotos May 2013 photograph 113
Images, UC QuakeStudies
An empty section where a house once stood at 27 Waygreen Avenue in New Brighton. The section has partly flooded and is overgrown with weeds and silt from liquefaction. An road cone sits to the left-hand side of the section.
BeckerFraserPhotos May 2013 photograph 044
Images, UC QuakeStudies
An abandoned residential property at 12 Seabreeze Close in Bexley. A damaged window has been boarded up around the side of the house and the front window has been vandalised with graffiti. The yard is covered with weeds and silt from liquefaction.
22 February Earthquake - Photograph 11
Images, UC QuakeStudies
Trees alongside the Avon River in Richmond. The river level is high, and the water is grey with silt. One of the trees is leaning towards the river. The photographer comments, "High river levels because of liquefaction in the Avon. Near 373 River Rd, Richmond".
Footpath cracks next to Rydal Park.
Images, eqnz.chch.2010
Sand volcanoes put the silt all over the road.
sand volcano in our front lawn
Images, eqnz.chch.2010
The earthquake knocked over the bird bath.
sand volcano
Images, eqnz.chch.2010
Debra points at the beginnings of a sand volcano not long after the big earthquake.
sand volcano crater
Images, eqnz.chch.2010
An usual thing to see coming from the ground in Hoon Hay, Christchurch.
Performance of sewer pipes with liner during earthquakes
Research papers, The University of Auckland Library
Recent earthquakes have shown that liquefaction and associated ground deformations are major geotechnical hazards to civil engineering infrastructures, such as pipelines. In particular, sewer pipes have been damaged in many areas in Christchurch as a result of liquefaction-induced lateral spreading near waterways and ground oscillation induced by seismic shaking. In this paper, the addition of a flexible AM liner as a potential countermeasure to increase sewer pipe capacity was investigated. Physical testing through 4-point loading test was undertaken to characterise material properties and the response of both unlined pipe and its lined counterpart. Next, numerical models were created using SAP2000 and ABAQUS to analyse buried pipeline response to transverse permanent ground displacement and to quantify, over a range of pipe segment lengths and soil parameters, the effectiveness of the AM liner in increasing displacement capacity. The numerical results suggest that the addition of the AM liner increases the deformation capacity of the unlined sewer pipe by as much as 50 times. The results confirmed that AM liner is an effective countermeasure for sewer pipes in liquefied ground not only in terms of increased deformation capacity but also the fact that AM-Liner can prevent influx of sand and water through broken pipes, making sewer pipes with liner remaining serviceable even under severe liquefaction condition.
BeckerFraserPhotos September 2010 photograph 088
Images, UC QuakeStudies
A sand volcano in the Halswell Primary School grounds near the playground. Sand volcanoes were caused by liquefaction where the soil loses its strength during the earthquake and the silt rises upwards, ejecting out of a hole like magma in a volcano.
BeckerFraserPhotos April 2011 photograph 036
Images, UC QuakeStudies
Earthquake damage down New Brighton Road. There is cracking on the footpath and cars are parked on the front lawns as silt from liquefaction still remains on the street curb. A van with a 'school' sign can be seen driving down the road.
BeckerFraserPhotos May 2013 photograph 099
Images, UC QuakeStudies
An abandoned residential property at 28 Waygreen Avenue in New Brighton. The front of the section is covered with weeds and silt from liquefaction. Three broken chairs lie outside the front of the house. The front door is open. 'HM' has been spray-painted in green onto the front wall.
BeckerFraserPhotos February 2011 photograph 404
Images, UC QuakeStudies
A house on Avonside Drive showing damage from the 4 September 2010 earthquake. Numerous cracks in the masonry can be seen, and several sections of brick have fallen off the walls. The building's porch has also collapsed. A pile of dried liquefaction is visible in the driveway.
22 February Earthquake - Photograph 66
Images, UC QuakeStudies
Bricks from a demolished chimney lie on top of thick liquefaction silt in front of a house in St Albans. The photographer comments, "Our friend Chris Hutching's house. The front lawn and carport have 30cm or more of silt piled on top. He also had to remove a shaky chimney".
22 February Earthquake - Photograph 65
Images, UC QuakeStudies
Bricks from a demolished chimney lie on top of thick liquefaction silt in front of a house in St Albans. The photographer comments, "Our friend Chris Hutching's house. The front lawn and carport have 30cm or more of silt piled on top. He also had to remove a shaky chimney".
BeckerFraserPhotos December 2011 photograph 0085
Images, UC QuakeStudies
A photograph captioned by BeckerFraserPhotos, "The garage of Bev Dickson's home of 45 years shows the impact of the liquefaction which meant that Bev has not lived there since September 2010. The property is located at 25 Tasman Place in Horseshoe Lake".
BeckerFraserPhotos December 2011 photograph 0084
Images, UC QuakeStudies
A photograph captioned by BeckerFraserPhotos, "The garage of Bev Dickson's home of 45 years shows the impact of the liquefaction which meant that Bev has not lived there since September 2010. The property is located at 25 Tasman Place in Horseshoe Lake".
BeckerFraserPhotos May 2013 photograph 097
Images, UC QuakeStudies
A flooded driveway leading to 26 and 28 Waygreen Avenue in New Brighton. The driveway is covered with weeds and silt from liquefaction. The mailbox is on a lean and on the right-hand side is an empty section where a house once stood.
22 February Earthquake - Photograph 04
Images, UC QuakeStudies
Damage to Medway Street in Richmond. The road surface is cracked and buckled, and covered in liquefaction silt. A temporary road sign restricting speed to 30 is visible, with road cones behind. The photographer comments, "Medway St, between Woodchester Ave and River Rd. Woodchester Ave on right just beyond the 30 sign".
22 February Earthquake - Photograph 26
Images, UC QuakeStudies
Damage to the garden of a house in Richmond. Liquefaction is visible among the plants and on the driveway. The photographer comments, "These photos show our old house in River Rd and recovery work around Richmond and St Albans. Back lawn under 10cm of water and silt".
Banks Avenue, Richmond - Photograph 22
Images, UC QuakeStudies
A power pole on the corner of Medway Street and Woodchester Avenue is on a lean, standing in a puddle of water and liquefaction silt. In the foreground road cones surround a pile of silt. The photographer comments, "Intersection of Medway St with Woodchester Ave and Flesher Ave, 10 days after the February quake".
sand volcano
Images, eqnz.chch.2010
Laura, Nicola, and Debra watch a sand volcano build in the Wyn Street gutter.
sand volcano
Images, eqnz.chch.2010
(I righted the bird bath after the initial earthquake. None of the after-shocks were sufficient to knock it over again.)
Photograph by Neil Macbeth 369
Images, UC QuakeStudies
Labour Party leader Phil Goff speaking to members of the Student Volunteer Army in the UCSA car park outside the UCSA's "Big Top" tent. The tent was erected to provide support for students at the University of Canterbury in the aftermath of the 22 February 2011 earthquake.