Photograph captioned by BeckerFraserPhotos, "Looking east along Beach Road towards Bower Avenue. Machine is pumping out groundwater and filtering silt. This piece of road is zoned orange on the left and green on the right".
A poster which outlines the dewatering process.
Photograph captioned by BeckerFraserPhotos, "Dallington Terrace. Dirty groundwater is pumped into the Siltbuster, the silt filtered out, and clean water pumped out into the river".
Stage IV of the Christchurch liquefaction study updated the Stage II liquefaction hazard and ground damage maps with further data collected from other organisations, and included two additional maps indicating liquefaction sensitivity to groundwater levels. Stage IVa of the Christchurch liquefaction study used revised groundwater levels and adjustments to the liquefaction prediction algorithm. The outputs of the report were liquefaction hazard and ground damage maps for both average summer (low) and average winter (high) groundwater levels. The maps produced as part of Stage IVa of the report were subsequently included in an Environment Canterbury public education poster The Solid Facts on Christchurch Liquefaction which also contained information on how liquefaction occurs and what can be done to mitigate the liquefaction hazard. Stage IV of the Christchurch liquefaction study contained a number of recommendations to improve the liquefaction potential and ground damage maps for Christchurch. See Object Overview for background and usage information.
Photograph captioned by BeckerFraserPhotos, "Looking east along Beach Road towards Bower Avenue. Machine is pumping out groundwater and filtering silt. This piece of road is zoned orange on the left and green on the right".
Stage IV of the Christchurch liquefaction study updated the Stage II liquefaction hazard and ground damage maps with further data collected from other organisations, and included two additional maps indicating liquefaction sensitivity to groundwater levels. See Object Overview for background and usage information.