Browse TRAIL Inventories

Slickenside occurrence in coal mine roof of the Valley Camp no. 3 mine near Wheeling, W. Va.

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

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

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

Ground-penetrating radar for strata control

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

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

Mechanical behavior of coal measure rocks :elastic-inelastic behavior

Clay veins :their occurrence, characteristics, and support

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

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

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

Yielding steel posts

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

Longwall automation :a ground control perspective

Elastic wave velocity and attenuation as used to define phases of loading and failure in coal

Calculation of vertical stress exerted by topographic features

Delineation of fractures in igneous rock masses using common offset radar reflection

Seismicity and stress changes subsequent to destress blasting at the Galena mine and implications for stress control strategies


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