TRAIL - Technical Report Archive and Image Library

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

Measuring formation pressures and the degree of gas drainage in a large coalbed gas drainage field

Large-scale laboratory drag cutter experiments in hard rock

Hydrochloric acid-oxygen leaching and metal recovery from copper-nickel bulk sulfide concentrate

The Effects of a retreating longwall on a three-entry gate road system

Analysis of sampling variance from certain platinum and palladium deposits in Alaska

Laboratory tests of spalling, breaking, and abrasion of wear-resistant alloys used in mining and mineral processing

Recovery of lithium from a montmorillonite-type clay

Using solvent-impregnated carbon to recover copper from oxidized mill tailings

Extraction of chromium from domestic chromites by alkali fusion

Measurement of coal-cutting forces underground with the in-seam tester

Laboratory wear testing capabilities of the Bureau of Mines

Quartz dust sources during overburden drilling at surface coal mines

Literature on the revegetation of coal-mined lands

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

Anchorage capacities in thick coal roofs

Mining deep ocean manganese nodules:description and economic analysis of a potential venture

Influence of chelating reagents on leaching of copper ore

Influence of an organic polymer in ball-mill grinding of quartz, dolomite, and copper ore

Defluorination of byproduct zinc concentrates

Electrochemical conditioning of a mineral particle bed electrode for flotation

Determination of tungsten and associated elements in natural brines and related process solutions by inductively coupled plasma spectrometry

Comparison of rotary and in-hole motor techniques for drilling horizontal boreholes in coal

Methane control on longwalls with cross-measure boreholes (Lower Kittanning Coalbed)

High-temperature properties of magnesia-refractory brick treated with oxide and salt solutions

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