TRAIL - Technical Report Archive and Image Library

Techniques to increase water pressure for improved water-jet-assisted cutting

Subsidence due to undermining of sloping terrain :a case study

Model of coal dust explosion suppression by rock dust entrainment

Hydrometallurgical recovery of critical metals from hardface alloy grinding waste :a laboratory study

Methods of evaluating explosive reactivity of explosive-contaminated solid waste substances

Thermal characteristics of energized coal mine trailing cables

Causes and control of coal mine bumps

Relationship between horizontal stresses and geologic anomalies in two coal mines in southern Illinois

Horizontal and vertical load transferring mechanisms in longwall roof supports

Roof truss contact forces

Effect of fluoride inclusions on induction-slag-melted Ti-6A1-4V alloy

Measurement and control in industrial processes using an analog-to-digital telemetry system

Recovery of cobalt from spent copper leach solutions -improved elution and impurity removal techniques, with revised process economics

A tomographic computer program with constraints to improve reconstructions for monitoring in situ mining leachate

Laboratory assessment of alternative longwall stabilization materials

Rapid (grab) sampling during full-scale explosions -microscopic and analytical evaluation

Selective electrowinning of mercury from gold cyanide solutions

Stiffness characteristics of longwall shields

Electrodewatering of Bayer muds :laboratory studies

Feasibility of CO₂ monitoring to assess air quality in mines using diesel equipment

In situ horizontal stress determinations in the Yampa coalfield, northwestern Colorado

Determining corrosion rates in industrial ore grinding environments

Na₂CrO₄ from domestic chromite concentrates by an alkali-fusion method

Coal particle pyrolysis mechanisms and temperatures

Leaching gold-silver ores with sodium cyanide and thiourea under comparable conditions

Computer modeling of dust and forces for longwall mining systems

Cost comparison of gob hole and cross-measure borehole systems to control methane in gobs

Factors affecting strength and stability of wood cribbing :height, configuration, and horizontal displacement

Evaluation of water-jet-assisted drilling with handheld drills

Permeability and corrosion resistance of reinforced sulfur concrete

Comparative study of blasting vibrations from Indiana surface coal mines

Potential for recovery of rutile and other byproducts from western copper tailings

Control of airborne respirable dust in the face area with water sprays using a full-scale laboratory model

Anticollision systems for large mine-haulage trucks

Case study of the effects of longwall mining induced subsidence on shallow ground water sources in the northern Appalachian coalfield

Chromium recovery from high-temperature shift Cr-Fe catalysts

Fire endurance of mine stoppings

Closed loop control for a continuous mining machine

Use of lignochemicals and humic acids to remove heavy metals from process waste streams

Comparison of aerial and ground surveying of subsidence over an active longwall

New steelmaking technology from the Bureau of Mines :proceedings of an open industry briefing held in association with the Electric Furnace Conference, December 8, 1987, Chicago, IL

Investigation of dust sources and control technology for longwall plow operations

Helium resources of the United States, 1987

Phosphate availability and supply :a minerals availability appraisal

Mine drainage and surface mine reclamation.

Effect of load rate on wood crib behavior

Solubilities of bromide salts of aluminum, cobalt, lead, manganese, potassium, and sodium when sparged with hydrogen bromide

Loading characteristics of pillars in multiple-seam mining operations

Preparation of ammonium paratungstate from a sodium tungstate-sodium chloride phase

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