Computer Modeling of Roof Support

by S. M. Dar, U. S. Dep of the Interior, Bureau of, Mines, Spokane Research Cent, Spokane, WA, USA,
H. C. Pettibone, U. S. Dep of the Interior, Bureau of, Mines, Spokane Research Cent, Spokane, WA, USA,
T. W. Smelser, U. S. Dep of the Interior, Bureau of, Mines, Spokane Research Cent, Spokane, WA, USA,



Document Type: Proceeding Paper

Part of: Rock Masses: Modeling of Underground Openings/Probability of Slope Failure/Fracture of Intact Rock

Abstract: The Bureau of Mines is using a full-scale geotechnical model of a 15-foot-wide (4. 6-m) coal mine entry in correlation with computer finite-element analysis at its Spokane Research Center for basic research on roof-bolt support systems. Physical and computer modeling of various coal mine roof-bolt reinforcement systems will increase our basic knowledge of how roof supports function. The objective is to make a significant improvement in the basic understanding of the rock-and-support interaction mechanics and relative integrity of bolted mine roof as a function of roof-bolt type, length, spacing, tension, and the basic characteristics of the roof strata.

Subject Headings: Computer models | Roofs | Finite element method | Geotechnical models | Coal mining | Mathematical models | Numerical models

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