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    Calculating methods of the explosive factor are researched by law of conservation of energy, and then a new one is brought forward which proves to be rational and reliable by a sample.
    在分析现有K缺陷的基础上,利用能量守恒原理,研究了路堑硐室松动爆破单位炸药消耗量计算方法,并提出一种新的K值计算方法,实例验证本方法合理、可靠,优于其它K值计算方法。
    As compared with the same type of productive bla-sting as before,the specific charge was reduced by 23.64-32.73%,the average of boulderrate decreased by 51.85-85.21%,the average volume of rock excavated per-metre holeincreased by 13.14-17.60% and the average of shoveling efficiency raised by 14.52%.
    与开展试验前同类型的生产爆破相比,试验炮在单位炸药消耗量减少23.64~32.73%情况下,矿岩爆破平均大块率降低51.85~85.21%,平均延米炮孔爆破量提高13.14~17.60%,平均电铲作业效率提高14.52%。
    The approximation of unit explosiveconsumption for heading advance
    井巷掘进单位炸药消耗量近似计算
    Carried on analysis and revise to the calculation formula of required quantity of air current that it was calculated by explosive consumption;
    对按炸药消耗量进行需风量计算的公式进行了分析与修正;
    Recent research indicates that monitoring drill performance will yield a Rock Quality Index for the rock mass which correlates to a Powder Factor value.
    近来的研究指出,观测钻孔效率可以得出与单位炸药消耗量相关的岩石品质指数(Rock Quality index)。
    Generally the explosive consumption is determined by looking out the table Mine Workings Budget Quota.
    掘进井巷炸药消耗量,一般通过查《矿山井巷工程预算定额》表求出,当手中没有资料时,就不能求出单位炸药消耗量,从而影响施工进度。
    Here is another approximation formula come from practice to determine the explosive consumption. It is more practical and could be calculated precisely without the table.
    现通过实践,推导出单位炸药消耗量的近似计算公式,与查表求出的数值基本吻合,从而更具有实用性。
 

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