发明名称 |
METHOD FOR FORMING OF AIR GAPS FROM FOAM POLYSTYRENE |
摘要 |
FIELD: drilling and blasting operations, applicable in various branches using blasting operations in hard rock masses. ^ SUBSTANCE: the method consists in separation of an explosive charge into parts by an air gap from foam polystyrene. The air gap of the rated height is formed by dipping of a bulk of foam polystyrene into a borehole, it is tightly packed in a cloth or polyethylene casing with a diameter not exceeding 0.8 of the borehole diameter with a weighting compound in the lower part from pieces of rock or borehole slime with a thickening bulk of explosive on it placed in a soft or elastic casing with a diameter not exceeding the borehole diameter. ^ EFFECT: simplified forming of air gap from foam polystyrene in an explosive charge. ^ 3 dwg |
申请公布号 |
RU2314487(C1) |
申请公布日期 |
2008.01.10 |
申请号 |
RU20060109908 |
申请日期 |
2006.03.27 |
申请人 |
GOSUDARSTVENNOE OBRAZOVATEL'NOE UCHREZHDENIE VYSSHEGO PROFESSIONAL'NOGO OBRAZOVANIJA "TIKHOOKEANSKIJ GOSUDARSTVENNYJ UNIVERSITET" |
发明人 |
SHEVKUN EVGENIJ BORISOVICH;LESHCHINSKIJ ALEKSANDR VALENTINOVICH;SAS PETR PETROVICH |
分类号 |
F42D1/08 |
主分类号 |
F42D1/08 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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