Download or read book Geologic Structures in Coal Mine Roof written by Noel N. Moebs and published by . This book was released on 1982 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Geologic Factors in Coal Mine Roof Stability written by Noel N. Moebs and published by . This book was released on 1984 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Geologic Factors in Predicting Coal Mine Roof rock Stability in the Upper Kittanning Coalbed Somerset County Pa written by and published by . This book was released on 1981 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Relation of Geology to Mine Roof Conditions in the Pocahontas No 3 Coalbed written by Noel N. Moebs and published by . This book was released on 1982 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Coal Mine Roof Rating CMRR written by Gregory M. Molinda and published by . This book was released on 1994 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Geologic Hazards and Roof Stability in Coal Mines written by Gregory M. Molinda and published by . This book was released on 2003 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Engineering Geology Applied to the Design and Operation of Underground Coal Mines written by C. Richard Dunrud and published by . This book was released on 1998 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Coal Mine Roof Instability written by Noel N. Moebs and published by . This book was released on 1986 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Information Circular 9466 Geologic Hazards and Roof Stability in Coal Mines written by Gregory M. Molinda and published by CreateSpace. This book was released on 2013-11 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt: The U.S. underground coal miner faces a continuing hazard from the fall of roof. At the root of many injuries and fatalities are weak or defective roof strata. Throughout mining history, millions of miles of entry have provided exposure of every conceivable geologic roof hazard. This report describes the geologic origin, association, and potential danger from the most common hazards. Discussions of weak rock include drawrock, rider coals, head coal, stackrock, and stream valley effects. Discontinuities, or roof defects, are described including, clay veins, slickensides, joints, and paleochannels. A number of examples from U.S. coalfields are used to document geologic structure and associated hazards. Roof fall analysis is a methodology used by NIOSH for hazard recognition and prevention; its application and benefit to the industry are discussed.
Download or read book Predicting Probable Roof Fall Areas in Advance of Mining by Geological Analysis written by William K. Overbey and published by . This book was released on 1973 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Relationship Between Horizontal Stresses and Geologic Anomalies in Two Coal Mines in Southern Illinois written by David K. Ingram and published by . This book was released on 1988 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Rating the Strength of Coal Mine Roof Rocks written by Gregory M. Molinda and published by . This book was released on 1996 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Geologic Features Related to Coal Mine Roof Falls written by Robert C. Milici and published by . This book was released on 1985 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Basic Geological and Analytical Properties of Selected Coal Seams for Coal Interface Detection written by S. D. Maksimovic and published by . This book was released on 1993 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Geologic Investigations of Underground Coal Mining Problems written by Charles M. McCulloch and published by . This book was released on 1975 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Geology of the Single entry Project at Sunnyside Coal Mines 1 and 2 Sunnyside Utah written by Barbee J. Scheibner and published by . This book was released on 1979 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Some Engineering Geologic Factors Controlling Coal Mine Subsidence in Utah and Colorado written by C. Richard Dunrud and published by . This book was released on 1976 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt: A discussion of the processes of subsidence and their effects on mine safety, coal resource management, and the environment in two geologic setting.
