When the project is finished, the excavation team will have moved 182,000 cubic yards of material, which is about 72,000 ...

working 12 hours a day loading in a low seam on our hands ... and a job mining coals for the seams of mine. He was paid for each box of coal he delivered to the surface. But he had to pay for ...

A DISPERSIVE train of vibrations resembling an internal Love wave has been observed during seismic experiments in the Mangapehi State Coal Mine, New Zealand. The observation is of interest as ...

Lim Chai Hock, one of the key figures behind PT Bayan Resources, is included in Forbes' list of the richest people in ...

State Key Laboratory of Water Resource Protection and Utilization in Coal Mining, Beijing, China National Institute of Low Carbon and Clean Energy ... of advance internal drainage of inclined coal ...