Browse TRAIL Inventories

Kettlebottoms :their relation to mine roof and support

Coal mine air tempering :effectiveness, design, and roof support

Geotechnology in slate quarry operations

The character of five selected LANDSAT lineaments in southwestern Pennsylvania

Hillseam geology and roof instability near outcrop in eastern Kentucky drift mines

Leakage across a bituminous coal mine barrier

Influence of subjacent gob on longwall development mining in the Upper Kittanning Coalbed of south-central Pennsylvania

Roof control of stress-relief jointing near outcrops in central Appalachian drift coal mines


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