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Controlling coal mine floor heave: an overview.

Authors
Wuest-WJ
Source
Denver, CO: U.S. Department of the Interior, Bureau of Mines, IC 9326, 1992 Jan; :1-17
Link
NIOSHTIC No.
10011458
Abstract
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.
Publication Date
19920101
Document Type
IH; Information Circular
Fiscal Year
1992
NTIS Accession No.
NTIS Price
Identifying No.
IC-9326
NIOSH Division
DRC
Source Name
Denver, CO: U.S. Department of the Interior, Bureau of Mines, IC 9326
State
CO
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