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Bureau of Mines Damage-resistant Brattice.

Authors
Thimons-ED; Matta-JE; Kissell-FN
Source
NTIS: PB 278 607 :10 pages
Link
NIOSHTIC No.
10002524
Abstract
The Bureau of Mines has developed a damage-resistant brattice, intended for use as a stopping in locations where blast damage to stoppings is a problem, the roof is relatively flat, and the differential pressure across the stopping is not high. Damage- resistant brattices consist of a series of vertically hung brattice panels joined to each other by velcro connections that improve the airtightness of the brattice. When the brattice is subjected to strong blast forces, the velcro connections peel apart, allowing the panels to open without incurring damage. The velcro connections can then be resealed in a matter of minutes. A preliminary test in the Bureau's safety research mine and subsequent long-term testing at the White Pine Copper Mine in Michigan and the retsof salt mine in New York show that damage-resistant brattices withstand blasting better than conventional stoppings, while still performing as efficient air barriers when the velcro connections are sealed.
Publication Date
19780101
Document Type
IH;
Fiscal Year
1978
NTIS Accession No.
PB-278607
NTIS Price
A02
Identifying No.
RI 8270
NIOSH Division
PRC;
Source Name
NTIS: PB 278 607
State
MI; NY;
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