A pilot hole hit water in zones not amenable to regular or microfine cement based suspension grout at a depth of approximately 400 metres below surface. Inflows as high as 100 liters per second were encountered…
Quick turnaround for grout curtain through rock not amenable to regular or microfine based cement grout.
ECO designed and directed a multi-grout, multi-technique post/pre-excavation grouting program to facilitate two mine slopes through water bearing strata. The grouting operation was executed by ECO trained miners.
A continuous 265 feet high, vertical grout curtain was installed from the underground donut tunnel around a shaft at a depth of 2,760 ft, under high hydrostatic pressures (400 to 1200 psi) using acrylamide based grout.