Roger J. Morrell

In Situ Tests of Bearing Capacity of Roof and Floor in Selected Bituminous Coal Mines

A Program Report - Longwall Mining

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Tunnel Boring Technology

Disk Cutter Experiments in Metamorphic and Igneous Rocks

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A Laboratory Comparison of Drag Cutting Methods in Hard Rock

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Horizontal Boring Technology: a State-of-the-art Study

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In Situ Determination of Rock Behavior by Overcore Stress Relief Method

Physical Property Measurements, and Initial Deformation Method

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Computer Usage for Evaluation of Design Parameters and Cost of Heat Exchangers

With No Change in Phase and Shell Side Pumping Costs as Prime Parameters

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