How has the coal mining industry changed over time?

if you are asking about the coal mining industry scenario in INDIA, then I can personally assure you that, it is still the primitive or in mining language known as Conventional. read more

Underground mining for example has benefited from improvements in gas monitoring technology and process control, dust control, ground control (i.e. roof bolting methods/tools/equipment) and a long list of other things like text messages to each miner via his or her headlamp battery pack device. read more

The past 30 years have shown a dramatic increase in technology in mining. Prior to the 1980s, the majority of excavation work was done with hand held equipment using pressurized air and water. The biggest advances in taking workers away from the face, the singular most hazardous place, was utilizing mechanized equipment and more recently remote mechanized equipment. read more