Mining problems caused by tectonic stress in Illinois basin

Conference · Thu Aug 01 00:00:00 EDT 1991 · AAPG Bulletin (American Association of Petroleum Geologists); (United States)

OSTI ID:5743532

Nelson, W J ^[1]

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1. Illinois State Geological Survey, Champaign (United States)

The Illinois basin coalfield is subject to a contemporary tectonic stress field in which the principal compressive stress axis ({sigma}1) is horizontal and strikes N60{degree}E to east-west. This stress is responsible for widespread development of kind zones and directional roof failures in mine headings driven perpendicular to {sigma}1. Also, small thrust faults perpendicular to {sigma}1 and joints parallel to {sigma}1 weaken the mine roof and occasionally admit water and gas to workings, depending upon geologic setting. The direction of magnitude of stress have been identified by a variety of techniques that can be applied both prior to mining and during development. Mining experience shows that the best method of minimizing stress-related problems is to drive mine headings at about 45 to {sigma}1.

• OSTI ID: 5743532
• Report Number(s): CONF-9109238-; CODEN: AABUD
• Journal Information: AAPG Bulletin (American Association of Petroleum Geologists); (United States), Vol. 75:8; Conference: American Association of Petroleum Geologists (AAPG) eastern section meeting, Pittsburgh, PA (United States), 8-10 Sep 1991; ISSN 0149-1423
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
STRATA MOVEMENT
STRESS ANALYSIS
UNDERGROUND MINING
HEALTH HAZARDS
WATER INFLUX
COAL DEPOSITS
COAL MINES
GEOLOGIC FAULTS
GEOLOGIC FRACTURES
GEOLOGIC HISTORY
ILLINOIS BASIN
METHANE
ORIENTATION
STRATA CONTROL
STRESSES
TECTONICS
ALKANES
GEOLOGIC DEPOSITS
GEOLOGIC STRUCTURES
HAZARDS
HYDROCARBONS
MINERAL RESOURCES
MINES
MINING
ORGANIC COMPOUNDS
RESOURCES
UNDERGROUND FACILITIES
012031* - Coal
Lignite
& Peat- Underground Mining- Strata Mechanics & Control- (1987-)
012033 - Coal
Lignite
& Peat- Underground Mining- Mine Environment- (1987-)