Wheel loader machine unloading rocks in the openmine of iron ore Gold mine tunnel ... Mining industry. Quarry mining equipment. A picture of a big yellow mining trucks at work site vehicles on a construction site Two dump trucks at a coal mine ... construction machinery and workers side view set. Excavator, wheel loader, tractor .
Mining Underground mining: When any ore body lies a considerable distance below the surface, the amount of waste that has to be removed in order to uncover the ore through surface mining becomes prohibitive, and underground techniques must be .