Search results with tag "During drilling"
Vehicle-Mounted Drilling Rigs for Rock and Concrete
www.osha.govalong with applying water to the drill bit during cutting to reduce dust. Drill operators using vehicle-mounted rigs with enclosed cabs can reduce their silica exposure by staying inside the cab during drilling. The cab must: • Be well-sealed and well-ventilated using positive pressure. • Have door jambs, window grooves, powerline
ROTARY DRILLING BITS AND DRILL STRING TOOLS
www.rocktechnology.sandvikgenerated during drilling. The bearing design, geometry and material selection are critical factors that go into the development of new bits. PERFORMANCE FOR APPLICATION EXCELLENCE Superior air-cooled bearing performance is achieved from a bearing design that has advanced metallurgy, optimized proportioning of components and geometry.
Geotechnical Manual (GEO)
onlinemanuals.txdot.govand provide more guidance when recording groundwater elevations during drilling operations. Make minor changes to the laboratory testing protocol for shear strength determination in Chapter 2. Update procedure in Chapter 3 on ‘Drill Hole Filling’ with current standard practices using mix of bentonite and/or grout.
DRILLING MACHINES GENERAL INFORMATION
uhv.cheme.cmu.eduDRILLING MACHINE SAFETY Never make any adjustments while the machine is operating. Drilling machines are one of the most dangerous hand operated pieces of equipment in the shop area. FollowingNever clean away chips with your hand. Use a brush. safety procedures during drilling operations will help eliminate accidents, loss of time, and materials.