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Using Inflatable Stoppings During Production in Noncoal Mines.

Authors
Thimons-ED; Kissell-FN
Source
NTIS: PB 265 970 :13 pages
Link
NIOSHTIC No.
10000746
Abstract
Several types of inflatable stoppings, developed under Bureau of Mines contract for use as mine air barriers during underground production, have been tested by the Bureau. All of the stoppings tested showed significant internal leakage initially but, in all but one stopping, the leaks were sealed with limited effort. The stoppings were tested underground in two western noncoal mines under production conditions. The results from the Colorado molybdenum mine showed the stoppings to be generally unsatisfactory for daily mine usage if they are deployed near blasting areas or in locations where near-perfect air seals are required. They were very susceptible to blast damage and seldom were better than 90 percent efficient as air barriers. However, stoppings tested in the new Mexico uranium mine were located substantially distant from any blasting. Because slight leakage past the stoppings was acceptable, they proved very satisfactory in that application.
Publication Date
19760101
Document Type
IH; Report of Investigations
Fiscal Year
1976
NTIS Accession No.
PB-265970
NTIS Price
A03
Identifying No.
RI 8177
NIOSH Division
PRC;
Source Name
NTIS: PB 265 970
State
CO; NM;
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