Browse TRAIL Inventories

Control of roof and prevention of accidents from falls of rock and coal

Survey of practices in controlling roof at intersections and junctions in underground coal mines

Investigation of longwall gateroad roof support characteristics at Powhatan No. 4 Mine :instrumentation plan

Kettlebottoms :their relation to mine roof and support

Geologic factors in coal mine roof stability :a progress report

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

Coal mine roof instability :categories and causes


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