Precalculation of subsidences over longwall panels in the Northern Appalachian Coal Field

Conference · Tue Jan 01 04:00:00 EST 1985

OSTI ID:7042792

Adamek, V; Jeran, P W

The specific lithological conditions over the Pittsburgh coalbed, highly resistive limestone and sandstone units with relatively shallow overburden, prevent the use of any predictive method as developed for European conditions. This paper describes the development of a subsidence precalculation methodology suitable to the mining-geological conditions in the Northern Appalachian Coal Field. It has been found that due to lithological conditions over the Pittsburgh coalbed the subsidence coefficient varies within the area of the subsidence trough. This is different from the European conditions where the subsidence coefficient is considered to be a constant. The effects of lithology, in the form of a variable subsidence coefficient, have been separated for each test site by introducing a correlation between hypothetically homogeneous overburden and existing lithological conditions, while providing for different mining conditions.

• OSTI ID: 7042792
• Report Number(s): CONF-851054-
• Country of Publication: United States
• Language: English

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APPALACHIA
CALCULATION METHODS
CARBONATE ROCKS
COAL DEPOSITS
COAL SEAMS
ENGINEERING GEOLOGY
EQUATIONS
EUROPE
FEDERAL REGION III
FUNCTIONS
GEOLOGIC DEPOSITS
GEOLOGY
GROUND SUBSIDENCE
LIMESTONE
LITHOLOGY
LONGWALL MINING
MATHEMATICS
MINERAL RESOURCES
MINING
NATIONAL ORGANIZATIONS
NORTH AMERICA
OVERBURDEN
PANELS
PENNSYLVANIA
POLYNOMIALS
REGRESSION ANALYSIS
RESOURCES
ROCKS
SANDSTONES
SEDIMENTARY ROCKS
SENSITIVITY ANALYSIS
STATISTICS
UNDERGROUND MINING
US BUREAU OF MINES
US DOI
US ORGANIZATIONS
USA