标准正态分布在高程爆破振动评价与预测中的应用  

Application of Standard Normal Distribution in Evaluation and Prediction of Blasting Vibration

作　　者：孙赛赛 池恩安[2,3] 牛国廷 张修玉 明悦 雷振 SUN Saisai;CHI Enan;NIU Guoting;ZHANG Xiuyu;MING Yue;LEI Zhe(l.Guizhou Guian Xinlian Blasting Engineering Co.,Ltd,Guian,Guizhou 550003,China;College of Mining,Guizhou University,Guiyang,Guizhou 550025,China;Poly Jiulian Holding Group Co.,Ltd,Guiyang,Guizhou 550025,China;Guizhou Provincial Public Security Department,Guiyang,Guizhou 550002,China;Guizhou Institute of Technology,Guiyang,Guizhou 550003,China)

机构地区：[1]贵州贵安新联爆破工程有限公司,贵州贵安新区550003 [2]贵州大学矿业学院,贵州贵阳550025 [3]保利久联控股集团有限责任公司,贵州贵阳550025 [4]贵州省公安厅,贵州贵阳550002 [5]贵州理工学院,贵州贵阳550003

出　　处：《矿业研究与开发》2020年第4期35-40,共6页Mining Research and Development

基　　金：国家自然科学基金项目(51664007)。

摘　　要：为降低露天矿台阶爆破因边坡高程放大效应对边坡造成的损害,减小通过修正的萨道夫斯基公式计算出的质点峰值速度v0与实际质点峰值速度v的误差,提高控制爆破振动强度的能力,基于标准正态分布,为爆破振速峰值建立随机变量v的分布函数。利用MATLAB中的二元线性回归模型求出爆破振动速度预测公式,对露天矿台阶边坡进行爆破振动评价和安全炸药量预测。通过工程实例与修正的萨道夫斯基公式进行对比发现,单段最大安全药量减少了约567kg,与实际更加吻合,且目标设施得到保护的概率提高了40.15个百分点,对比结果表明:利用概率公式对爆破振动进行评价和安全药量预测,其结果明显优于修正的萨道夫斯基公式。In order to reduce the damage to the slope caused by the amplification effect of the slope elevation in bench blasting of open-pit mine,to reduce the error between the particle peak velocity v0 calculated by modified Sadaovsk formula and the actual particle peak velocity v,and to improved ability of control blasting vibration intensity,the distribution function of the random variable vfor the peak value of blasting vibration speed was established based on the standard normal distribution.And the prediction formula of blasting vibration velocity was obtained by using the binary linear regression model in MATLAB,so as to evaluate the blasting vibration and to predict safe explosive volume of a certain bench slope in open-pit mine.Finally,by comparing the engineering example with the modified Sadaovsk formula,it was found that the maximum safety dose in a single section reduced by about 567 kg,which was more consistent with the actual situation,and the probability of protecting the target facilities increased by 40.15%.The comparison results showed that the evaluation of blasting vibration and the prediction of safe dose by using the probability formula were obviously better than those by using the modified Sadaovsk formula.

关 键 词：标准正态分布 高程 爆破振动评价 安全药量预测 

分 类 号：TD235[矿业工程—矿井建设]