The brutally efficient coal-extraction method known as “longwall mining” has permanently damaged a half dozen streams in Pennsylvania, state regulators have found — a finding that could trigger deeper ...

Existing studies of the structural strength of longwall mining hydraulic support are mainly focused on the force acting on individual supports instead of the general mechanical characteristics of the ...

Mindset Mining Consultants MD Alan Gissing and senior mining engineer Ronnie van Eeden discuss a recently completed longwall mining feasibility study conducted for energy and chemicals company Sasol.

Szczur said PennDOT officials are using top-of-the-line technology to monitor the potential effects of longwall mining on the I-70 corridor. LiDAR, which stands for Light Detection and Ranging, is a ...

As longwall mining becomes an increasing concern near Cameron, the city clerk is preparing residents for what may come. “I just want them to be responsible for their actions,” resident Connie Neely ...

WHEELING – Expect to see lots of orange, fluorescent green and slow-moving traffic on Interstate 70 at the West Virginia/Pennsylvania state line over the next four-plus months. The orange will be from ...