PROJECT PROFILE Summary A shallow, weak soil stratum under a heavy-weight concrete six-storey apartment block in Christchurch had caused the building to suffer differential settlement of up to 70mm after the recent earthquakes. It was rectified using Jet Grouting to strengthen the foundation ground and by using JOG Computer-Controlled Grouting to raise the building back precisely to its design levels. Objectives Firstly to strengthen the ent

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