Search U.S. government technical reports digitized or harvested by TRAIL.
Rock-dust barriers for coal mines
Coal-dust explosions in mines caused by direct electrical ignition
The effectiveness of different-size rock dusts in preventing coal-dust explosions in mines
Some experiments on the initiation of coal-dust explosions by gas explosions
The Experimental mine of the United States Bureau of Mines
Tests of the compressibility and bearing strength of potash salt
Tests of a barrier using rock dust in paper bags
Compression tests of roof-salt slabs supported by potash salt pillars
Experiments on strength of small pillars of coal in the Pittsburgh bed
Tests of salt as a substitute for rock dust in the prevention of coal-dust explosions in mines
Characteristics of fuel pitches and their explosibility in pulverized form
Progress report :experiments on strength of small pillars of coal in the Pittsburgh bed
Tests on the control of coal-mine fires in the experimental coal mine
Recent rock-dusting experiments for arresting coal-mine explosions
Experiments on safety of incombustible plugs for stemming explosives
Experiments on multiple short-delay blasting of coal (in two parts) :part I