Subsidence over the end of a longwall panel. Report of Investigations/1991

Technical Report · Tue Jan 01 04:00:00 EST 1991

OSTI ID:5384673

Jeran, P W; Adamek, V

Subsidence was monitored by the U.S. Bureau of Mines over the ends of longwall panels operating in the Pittsburgh, Kittanning, and No. 2 Gas Coalbeds of the northern Appalachian Coal Basin. The final subsidence over the finishing ends of three panels in the Pittsburgh Coalbed is compared with the subsidence measured over the rib at these panels. The characteristics of subsidence are different. At Mine A, data over the start of a longwall panel show similar characteristics to the subsidence measured over the rib. Subsidence over the finishing ends of panels in the Kittanning and No. 2 Gas Coalbeds are also different from the subsidence over the rib. The use of a subsidence prediction model based on data gathered over the rib of a panel will not yield accurate results if it is applied to the finishing end of a longwall panel. Acceptable results may be obtained along the centerline over the starting end of a panel.

• Research Organization: Bureau of Mines, Washington, DC (United States)
• OSTI ID: 5384673
• Report Number(s): PB-91-200493/XAB; BUMINES-RI--9338
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010900* -- Coal
Lignite
& Peat-- Environmental Aspects
54 ENVIRONMENTAL SCIENCES
540250 -- Environment
Terrestrial-- Site Resource & Use Studies-- (1990-)
APPALACHIAN BASIN
COAL MINES
COAL MINING
ENGINEERING
ENVIRONMENTAL EFFECTS
FORECASTING
GEOLOGIC STRUCTURES
GROUND SUBSIDENCE
LONGWALL MINING
MATHEMATICAL MODELS
MECHANICS
MINES
MINING
MINING ENGINEERING
MONITORING
NATIONAL ORGANIZATIONS
OVERBURDEN
ROCK MECHANICS
ROCKS
SEDIMENTARY BASINS
STRATA MOVEMENT
UNDERGROUND FACILITIES
UNDERGROUND MINING
US BUREAU OF MINES
US DOI
US ORGANIZATIONS
WORKING FACES