PROJECT PROFILE Summary This large residence in Christchurch suffered differential settlement of an average 55mm from the 2010 & 2011 earthquakes. Set on a raft concrete slab, the whole house had subsided and tilted. It was rectified by Mainmark using JOG integrated computer grouting to raise the building back to within 10mm of its design levels. Objectives The house was built adjacent to a creek and there was a high water table in the area

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