FIELD: fire safety engineering.
SUBSTANCE: prior to erection of main and additional links, protective bridge is erected in mine. Protective link consists of at least three partitions, which are installed in staggered rows. Partitions overlap one of mine section halves. After erection of partitions in front of them from the side of fire zone at least three rows of metal mesh are fixed, which are installed at the angle of 30° to mine axis and overlap all section of mine with distance between them of at least 0.5 M, m. Distance between partitions is received as 0.5 M, where M is width of mine, m.
EFFECT: increased safety of fire extinguishing in closed spaces due to suppression of shock wave from explosion during fire extinguishing, increased efficiency of fire extinguishing, reduction of possible pecuniary loss.
5 cl, 3 dwg
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