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Controlling coal mine floor heave: an overview.

Wuest WJ

Denver, CO: U.S. Department of the Interior, Bureau of Mines, IC 9326, 1992 Jan; :1-17

10011458

This U.S. Bureau of Mines report presents an overview of ground control considerations associated with floor heave. Factors affecting heave, such as in situ stress, floor characteristics, and mine geometry, are described. Floor-displacement monitoring and data analysis methods are outlined. Finally, floor heave remediation is discussed. The remedial techniques are divided into four categories: mine maintenance, supplemental support, mine structure, and techniques for multiple-seam operations. Other subjects covered in the report include laboratory and in-place testing of floor rocks, U.S. and international case studies, effects of mine layout, determination of excess horizontal pressure, and types of heave failures. The emphasis of this report is on practical considerations; theoretical discussions are kept to a minimum.

19920101

IH; Information Circular

1992

IC-9326

DRC

Denver, CO: U.S. Department of the Interior, Bureau of Mines, IC 9326

CO