TRAIL - Technical Report Archive and Image Library

Chromite deposits along the Border Ranges Fault, southern Alaska.

Cabs and canopies for underground coal mining equipment :proceedings

Chemically enhanced drilling :an annotated tabulation of published results

Molybdenum availability--market economy countries :a minerals availability appraisal

Automated temporary roof support (ATRS) systems for roof bolting machines :proceedings

Dust control in bag-filling operations

Cobalt availability--market economy countries :a minerals availability program appraisal

Overcoring equipment and techniques used in rock stress determination (an update of IC 8618)

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

Improved underground rerailing apparatus

Water-jet-assisted cutting :proceedings, Bureau of Mines open industry meeting, Pittsburgh, PA, June 21, 1984

Evaluation of sensitive ground fault interrupters for coal mines

Microcomputer-based instrumentation system for monitoring ground support in a deep mine shaft

Chromite deposits along the border ranges fault, southern Alaska.

Design of bulkheads for controlling water in underground mines

Continuous radiation working-level detectors

Design and operation of four prototype fire detection systems in noncoal underground mines

A technology for integrity testing of in situ leach mining wells using a system of inflatable packers

Effects of water on coal cutting forces and primary dust distribution

Analysis for impurities in helium using the helium ionization detector

Improved shearer-clearer system for double-drum shearers on longwall faces

The phase relationship of talc and amphiboles in a fibrous talc sample

Upgrading domestic high-iron chromite concentrates by carbonyl extraction of excess iron

Chlorine-oxygen leaching of a low-grade zinc sulfide flotation concentrate

Bulkheads and drains for high sandfill stopes

Fiber reinforcement of sulfur concrete to enhance flexural properties

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

Evaluation of a ground penetrating radar system for detecting subsurface anomalies

Fiber dimensions of crocidolites from Western Australia, Bolivia, and the Cape and Transvaal provinces of South Africa

Recovery of metal values from copper converter flue dust

Plasma-sprayed iron-base wear-resistant coatings containing titanium diboride

Conical bit rotation as a function of selected cutting parameters

Hot acid leaching of vanadium from western phosphate beneficiation tailings

Fracture zone dewatering to control ground water inflow in underground coal mines

Computer program to relate dust generation to drum-type coal mining machines

Determination of alpha quartz particle distribution in respirable coal mine dust samples and reference standards

Electrochemical determination of thermodynamic properties of MnF₂ and CoF₂

Blast vibration measurements near and on structure foundations

Rock stability analysis using acoustic spectroscopy

Vanadium extraction from Idaho mudstones

Procedures for determining support of excavations in highly yielding ground

Electrical ignition energies and thermal autoignition temperatures for evaluating explosion hazards of dusts

Geotechnology in slate quarry operations

Measurement of air velocity in mines

Utilization of simulated coal gases for reducing iron oxide pellets

Removal of magnesia from dolomitic southern Florida phosphate concentrates by aqueous SO₂ leaching

Thermodynamic properties of CoS₀.₈₉, CoS₁.₃₃ and CoS₂

Exhaust ventilation of deep cuts using a continuous-mining machine

Solubilities of chloride salts of alkali and alkaline-earth metals when sparged with hydrogen chloride

Electrostatic sensitivity, strength, and no-fire current of short-delay detonators

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