Browse TRAIL Inventories

Development of a mechanical roof breaker for ground control in longwall operations under massive roof

Convergence measurements for squeeze monitoring :instrumentation and results

Monitoring ground movements near caving stopes :methods and measurements

Mechanical properties of some portland cement concretes made with coal and coal waste as aggregates

Use of steel sets in underground coal

Field measurement of rock displacement and support pressure at 5,955-ft level during sinking of deep circular shaft in northern Idaho

Selected pneumatic gunites for use in underground mining :a comparative engineering analysis

Remedial and strata replacement techniques on longwall faces :a report on the state of the art

Ground-penetrating radar for strata control

Rock stability analysis using acoustic spectroscopy

Longwall roof support technology in the eighties :a state-of-the-art report

Strata interactions in multiple-seam mining--two case studies in Pennsylvania

Human factors contributing to groundfall accidents in underground coal mines :workers' views

Mechanical behavior of coal measure rocks :elastic-inelastic behavior

Clay veins :their occurrence, characteristics, and support

Application of stereoscopic (3-D) slides to roof and rib hazard recognition training

Geologic conditions affecting coal mine ground control in the western United States

Yielding steel posts

Field evaluation of three longwall pillar systems in a Kentucky coal mine


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