Komatsu, through its subsidiary, Komatsu Cummins Chile, has agreed with Codelco, a major state-owned mining company in Chile, to collaborate on trialing a new tunnel excavation method using Komatsu's ...

A state grant for $605,849 was awarded to a project to reclaim abandoned mine lands near the Pioneer Tunnel Coal Mine & Steam Train in Ashland. State Sen. David G. Argall, R-29, Rush Twp., and Rep.

ASHLAND, Pa. — Ralph Buchspics from Ashland works at the same mine his grandfather did decades ago. “He was a miner, so he mined coal inside of there. Most of them were digging, digging and digging, ...

CAPE CHARLES, Va. (WAVY) — The tunnel boring machine known as Chessie broke through the receiving pit on Two Island at the Thimble Shoal Channel at the Chesapeake Bay Bridge-Tunnel Monday, the CBBT ...

At a mine of the Sunnyhill Coal Co. near New Lexington, Ohio one day last week, amazed mine experts watched a huge (26-ton) machine in action. With surprisingly little noise, it tore into a seam, ...