Vibration and air blast noise from surface coal mine blasting

Conference · Mon Dec 31 23:00:00 EST 1979

OSTI ID:5930770

Linehan, P; Wiss, J F

Vibration and air blast noise from blasting were evaluated during a research program sponsored by the Bureau of Mines. Blast variables were studied using small-scale model tests to evaluate specific variables as well as interactive effects, followed by experiments with production blasts at the surface coal mines. Experimental data showed that the primary variables affecting the ground vibration amplitude are the charge weight per delay and the length of the delay interval. Blast variables with a significant affect on the overpressure amplitude include the charge weight per delay, the length of the delay, burden and spacing, stemming amount and type, direction of initiation, charge depth, and amount of detonating cord and cover.

• OSTI ID: 5930770
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
012000* -- Coal
Lignite
& Peat-- Mining
560400 -- Other Environmental Pollutant Effects
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
BLAST EFFECTS
COAL MINING
EXPLOSIONS
GROUND MOTION
MECHANICAL VIBRATIONS
MINING
MOTION
NOISE
NOISE POLLUTION
POLLUTION
SURFACE MINING