Geologic Hazards and Roof Stability in Coal Mines
Title | Geologic Hazards and Roof Stability in Coal Mines PDF eBook |
Author | Gregory M. Molinda |
Publisher | |
Pages | 44 |
Release | 2003 |
Genre | Coal |
ISBN |
Information Circular 9466 Geologic Hazards and Roof Stability in Coal Mines
Title | Information Circular 9466 Geologic Hazards and Roof Stability in Coal Mines PDF eBook |
Author | Gregory M. Molinda |
Publisher | CreateSpace |
Pages | 40 |
Release | 2013-11 |
Genre | |
ISBN | 9781493735747 |
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.
Geologic Factors in Coal Mine Roof Stability
Title | Geologic Factors in Coal Mine Roof Stability PDF eBook |
Author | Noel N. Moebs |
Publisher | |
Pages | 36 |
Release | 1984 |
Genre | Coal |
ISBN |
Guide to Geologic Features Affecting Coal Mine Roof
Title | Guide to Geologic Features Affecting Coal Mine Roof PDF eBook |
Author | Robert Lee Stahl |
Publisher | |
Pages | 30 |
Release | 1979 |
Genre | Coal mines and mining |
ISBN |
Geologic Factors in Predicting Coal Mine Roof-rock Stability in the Upper Kittanning Coalbed, Somerset County, Pa
Title | Geologic Factors in Predicting Coal Mine Roof-rock Stability in the Upper Kittanning Coalbed, Somerset County, Pa PDF eBook |
Author | |
Publisher | |
Pages | 52 |
Release | 1981 |
Genre | Coal mines and mining |
ISBN |
Preventing Coal Mine Groundfall Accidents
Title | Preventing Coal Mine Groundfall Accidents PDF eBook |
Author | |
Publisher | |
Pages | 100 |
Release | 1992 |
Genre | Coal miners |
ISBN |
Geologic Factors Affecting Coal Mine Roof Stability in the Eastern United States
Title | Geologic Factors Affecting Coal Mine Roof Stability in the Eastern United States PDF eBook |
Author | William F. Kane |
Publisher | |
Pages | 15 |
Release | 1993 |
Genre | Coal mines and mining |
ISBN |