10014
DOI: 10.14311/BSS.2014.0014
PARTICULAR QUALITIES OF BLASTING IN SHAFTS, CONSTRUCTED BY METHOD OF DROUN FREEZING
Ibragim M. Palankoev1*
1Moscow State Mining Institute, Faculty of Underground Constructions and Mining, Moscow, Russia
*Corresponding author. Email: 975@mail.ru
Blasting works in vertical shafts often are complicated by working out of rock soils and by menace of freezing columns damage. This accounts for serious emergency setuations , including flood of shaft. In this article were analyzed different diagrams of exertion pulse effects, was counted a top exertion (24.5 MPa) which affects on steel tubes of freezing columns. Were formulated aims of following tests.
KEYWORDS: blasting, ground freezing method, freezing columns, exertion pulse effects
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