工程爆破

2014, v.20(01) 54-58

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露天台阶爆破毫秒延时间隔时间研究
RESAERCH ON THE MILLISECOND DELAY INTERVAL TIME OF OPEN-PIT BENCH BLASTING

刘倩;吕淑然;
LIU Qian;LV Shu-ran;Capital University of Economics and Business;

摘要(Abstract):

从改善破碎效果和降振两方面对国内外露天台阶爆破毫秒延时间隔时间的研究成果进行了梳理与分析。基于改善破碎效果的研究,国外学者得出多个计算公式,但参数不同,给使用者带来困惑;国内学者多基于工程实践给出经验值。基于降振的研究,国外学者提出不同计算方法,但具有一定的局限性;国内多基于工程实践给出最佳取值范围。同时展望了未来露天台阶爆破间隔时间的研究方向,可供爆破工作者参考。
The domestic and foreign research on the open-pit bench blasting of millisecond delay interval time was analyzed from the aspects of improving fragmentation effect and vibration reduction.Based on the study of improving fragmentation effect,foreign scholars mostly proposed formulas with different parameters,which brought much confusion to the users;while majority of domestic scholars gave the experience value based on engineering practice.Based on the research on vibration reduction,foreign scholars proposed different calculation methods,but their results had certain limitations;domestic scholars gave the optimal range according to the engineering practice.The direction of future research on open-pit bench blasting interval time was also forecasted,which could provide a reference for the blasting workers.

关键词(KeyWords): 露天台阶爆破;毫秒延时;间隔时间;破碎效果;降振
Open-pit bench blasting;Millisecond delay;Interval time;Fragmentation effect;Vibration reduction

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基金项目(Foundation): 2011年度北京市属高等学校人才强教深化计划项目(PHR201107143)资助

作者(Author): 刘倩;吕淑然;
LIU Qian;LV Shu-ran;Capital University of Economics and Business;

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