工程爆破

2012, v.18;No.68(02) 26-28

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爆破飞石预测公式的量纲分析法
FLYROCK DISTANCE PREDICTOR FORMULA DEDUCTED BY DIMENSIONAL ANALYSIS METHOD FOR BLASTING

吴春平;刘连生;窦金龙;张光权;
WU Chun-ping1,LIU Lian-sheng2,DOU Jin-long3,ZHANG Guang-quan3(1.Beijing General Research Institute of Mining & Metallurgy,Beijing 100070,China; 2.Jiangxi University of Science and Technology,Ganzhou 341000,Jiangxi,China; 3.University of Science and Technology Beijing,Beijing 100083,China)

摘要(Abstract):

在爆破飞石距离的研究方面,目前还没有一个普遍接受的爆破飞石预测公式。量纲分析法不涉及物理问题的数量方程,可以简化数学分析过程,减少相关参数,因此特别适合用于爆破理论分析。用量纲分析法对爆破飞石的产生过程进行了研究,将其分为炸药爆炸和飞石抛掷两个过程,得出特定情况下爆破飞石抛掷距离的通用预测公式。
There is not a generally accepted predictor formula for blasting flyrock distance in its research aspect.Dimensional analysis method is very suitable for blasting theoretical investigation because it does not involve any certain mathematical equations of physical problems.Furthermore,it can predigest the procedures of mathematic analysis and reduce some interrelated parameters.The keys of dimensional analysis method are precise analysis for physical phenomenon and reasonable choice for interrelated parameters.The procedure of blasting flyrock was investigated by dimensional analysis method.It was separated into two procedures including blasting and flying of flyrock.A general predictor formula for blasting flyrock distance was obtained under specific condition.

关键词(KeyWords): 工程爆破;飞石;量纲分析;π定理;相似理论
Engineering blasting;Flyrock;Dimensional analysis;π theorem;Similarity theory

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基金项目(Foundation): 863课题“地下金属矿智能采矿爆破技术与装备”(No.2011AA060405)

作者(Author): 吴春平;刘连生;窦金龙;张光权;
WU Chun-ping1,LIU Lian-sheng2,DOU Jin-long3,ZHANG Guang-quan3(1.Beijing General Research Institute of Mining & Metallurgy,Beijing 100070,China; 2.Jiangxi University of Science and Technology,Ganzhou 341000,Jiangxi,China; 3.University of Science and Technology Beijing,Beijing 100083,China)

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