The difficult challenges of drilling through extremely hard substrata include the damages that occur to ordinary blades. Rock drills, made of substances with the hardness of industrial diamonds, are used in such cases. They require lubrication and cooling systems to alleviate stress that accompanies friction when drilling through rock. The rock drill can be utilized in applications such as oil rigs or any other project requiring drilling to extreme depths.
Excavation associated with foundations for larger structures often utilizes methods different than those undertaken in more ordinary soil. Skilled manpower and specialized tools are essential elements when excavating rockier ground. Drilling and explosive work are conducted in conjunction with competent and responsible supervisory personnel. Prior and complete permitting is always required before commencement of any operation of this kind. Depths to be excavated and proximity to existing structures are prime determinants of what equipment and techniques are to be used. Smaller rocks can still be broken or eliminated by compressed air Jack Hammers. In hazardous environments, areas such as oil refineries, operating industrial plants, etc. the use of chemical fissuring of rocks is normally needed.
Shallower holes and rock cutting are undertaken with jack drillers. Hydraulic hammers breakup rock when larger areas require excavation. Sometimes this involves the use of deeper blasting wagon mounted drills. Every blasting operation is customer approved, properly calculated by the contractor and reviewed for all safety precautions. Loose rock is removed by use of excavators and put into storage. Mining department licensed blasters are always used to insure proper procedural organization and the highest quality of operations.