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分析了在堆石料硐室爆玻开采中影响玻碎效果的因素,从炸药单耗、药包布置、空腔比、最小抵抗线与药包埋深等方面提出了控制石料块度和级配的对策。两次开采实残证明,石料级配符合水工设计要求,超径石得到了有效控制。
The factors influencing the effect of glass breakage in blasting blasting of rockfill chamber were analyzed. The factors controlling the blockage and grading of stone were put forward from the aspects of unit charge, package arrangement, cavity ratio, minimum resistance line and drug embedment depth. Countermeasures. Real mining two times proved that stone grading in line with hydraulic design requirements, super-calculus has been effectively controlled.