Dā-mite® Job Stories
Mass Rock Excavation Foundation: Mass Rock/Outcropping: Rock: Pegmatite, Holes drilled: 1⅞" diameter holes, depth 8-10' deep,
Problem: impact hammers would not break the rock. Explosives could not be used due to confined space.
Basement Excavation Nashville, TN: Limestone: Area was roughly 42'x55' with 5ft of rock to be excavated. Site contractor had used
5000# hammer for 40 hours and got 1.5 ft deep in a 30x5ft wide area.