Design of coal mine entry intersections

Book · Fri Jan 01 04:00:00 UTC 1988

OSTI ID:7074543

Hanna, K; Conover, D P

The method considers the effect of in situ stresses, local geological conditions, rock physical properties, and mining sequence. Development of the method is discussed, including the results of field instrumentation and numerical modeling investigations. Ground control studies conducted by the Bureau of Mines in two underground mines in the Illinois Coal Basin have shown that in situ horizontal stresses and roof geology have a critical effect on intersection stability. Methods to reduce the adverse effects of these parameters are emphasized. Typical failure behavior associated with specific geologic and horizontal stress conditions is presented to illustrate proposed control methods to alleviate adverse ground conditions.

• OSTI ID: 7074543
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
012031* -- Coal
Lignite
& Peat-- Underground Mining-- Strata Mechanics & Control-- (1987-)
COAL MINING
DATA ANALYSIS
GEOLOGIC MODELS
GEOPHYSICS
JUNCTIONS
MATHEMATICAL MODELS
MECHANICAL STRUCTURES
MECHANICS
METERING
MINE ROADWAYS
MINING
ROCK MECHANICS
ROOFS
STRATA CONTROL
STRESSES
SUPPORTS
TUNNELS
UNDERGROUND FACILITIES
UNDERGROUND MINING