Wilbur I. Duvall

Development Testing and Analysis of Steel Fiber-reinforced Concrete Mine Support Members

Support System Design and Results of Laboratory Investigation and Full-scale Testing

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Stresses and Displacements Induced in Rock by Tunnel Boring Machine Props

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Heats and Free Energies of Formation of Ferrites and Aluminates of Calcium, Magnesium, Sodium, and Lithium

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Stress Analysis Applied to Underground Mining Problems

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Least Squares Calculation of Horizontal Stresses from More Than Three Diametral Deformations in Vertical Boreholes

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Numerical Methods for Determining Streamlines and Isopressures for Use in Fluid-flow Studies

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Nonuniform Radial Loads Applied to the Boundary of a Circular Hole in an Infinite Plate

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Stress Analysis Applied to Underground Mining Problems

stress analysis applied to multiple openings and pillars

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Low-temperature Lignite Tar

Processing and Utilization

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Strain Energy in Explosion-generated Strain Pulses

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Comparison Between End and Axial Methods of Detonating an Explosive in Granite

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Preparation Characteristics of Coal from Bell County, Ky

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Improvements in the Three-component Borehole Deformation Gage and Overcoring Techniques

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American Standard Recommended Practice for Drainage of Coal Mines (M6.1-1955, UDC 622.5)

Revision of American Recommended Practice for Drainage of Coal Mines, M6-1931

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In Situ Rock Temperature

Stress Investigations in Rock Quarries

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Report of Investigations

no.7381 to date

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Effect of Charge Weight on Vibration Levels from Quarry Blasting

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Vapor-liquid Equilibrium Data for Two Helium-nitrogen-methane Mixtures from 76.50 to 1640 K and Pressures to 1,200 PSIA

1971-1972

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Effect of Decoupling on Explosion-generated Strain Pulses in Rock

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Stresses in Rock Outcrops Near Atlanta, Ga

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Spherical Propagation of Explosion-generated Strain Pulses in Rock

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Stress Analysis Applied to Underground Mining Problems

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Detonation of a Flammable Cloud Following a Propane Pipeline Break

The December 9, 1970, Explosion in Port Hudson, Mo

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Development Testing and Analysis of Steel Fiber-reinforced Concrete Mine Support Members

Support System Design and Results of Laboratory Investigation and Full-scale Testing

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Operation of a Dithionate-process Pilot Plant for Leaching Manganese Ore from Maggie Canyon Deposit, Artillery Mountains Region, Mohave County, Ariz

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Thermoelectric Properties of Yttrium Selenides and Tellurides

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Micro-seismic Method of Determining the Stability of Underground Openings

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Effect of Decoupling on Explosion-generated Strain Pulses in Rock

1963-1964

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Petrographic and Flotation Studies on the Meade Peak, Idaho, Phosphate Samples

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Stress Analysis Applied to Underground Mining Problems

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Annual Report of Research and Technologic Work on Explosives, Explosions, and Flames, Fiscal Year 1946

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