BC Hydro - John Hart Dam - Interim Seismic Upgrade

Jet Grouting

Owner : BC Hydro

General Contractor: Matcon Excavation and Shoring

Jet Grouted columns: 35 -1.4 to 1.6 meters diameter columns using single jet grouting and pre installed PVC pipe, in a pre-drilled hole,to have a better control of reflow and avoid hydrofracturing of the embankment of the Dam.

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Project Location:

John Hart Dam- Campbell River, BC

Completion Date: October 2011

Challenge:Jet Grouting job carried out in Dam Embankment- Verticality requirements- Plastic Grout Mix Control