Client: Brasfond Fundações Especiais S/A.
The project for construction of a coal power plant included the excavation of 6 areas of 3000m2 and 1270 piles of 1000mm diameter with depths ranging from 10 to 18m. A 4m steel casing placed to start the excavation. The operation involved 3 drilling rigs and 2 auxiliary cranes thus resulting in a daily average production of 15 piles. With a wide available area it was quite easy to assemble the ideal slurry plants, 2 in total, used PolyMud® as a main all purpose stabilizer. The job was executed in a zone of tourism and beaches and ecologically protected environment with frequent local inspections to ensure the enforcement of the Brazilian environmental laws. The G3 System® was approved for application on site after tested locally.
The G3 system® technology kept the working areas clean throughout the entire project guaranteeing a high production rates when compared to bentonite or steel casing. Avoiding the traditional mechanical means to separate sand from the fluid reinforcement cages were set in place upon pile completion reducing the pile execution cycle time. All concrete over breaks registered values under 10%.
With the application of PolyMud we observed: