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金属矿山 ›› 2019, Vol. 48 ›› Issue (05): 56-61.

• 采矿工程 • 上一篇    下一篇

基于量纲分析的爆破振动质点峰值速度预测公式

叶海旺1,2,袁尔君1,雷涛1,2,龙梅3   

  1. 1. 武汉理工大学资源与环境工程学院,湖北 武汉 430070;2. 矿物资源加工与环境湖北省重点实验室,湖北 武汉 430070;3. 武汉理工大学图书馆,湖北 武汉 430070
  • 出版日期:2019-05-15 发布日期:2019-07-03
  • 基金资助:

    贵州省科技计划项目(编号:20172803),中央高校基本科研业务费专项(编号:2017-zy-071,2018-zy-81,2018-zy-85)。

Blasting Vibration Peak Particle Velocity Prediction Formula Based on Dimensional Analysis Method

Ye Haiwang1,2,Yuan Erjun1,Lei Tao1,2,Long Mei3   

  1. 1. School of Resources and Environment Engineering,Wuhan University of Technology,Wuhan 430070,China;2. Hubei Key Laboratory of Mineral Resources Processing and Environment,Wuhan 430070,China;3. Wuhan University of Technology Library,Wuhan 430070,China
  • Online:2019-05-15 Published:2019-07-03

摘要: 质点峰值振动速度预测是爆破设计及爆破灾害控制中的重要内容。基于量纲分析理论,引入爆破振动速度监测点与爆源之间的地形(高程差和水平距离)影响因子,重构了爆破振动质点峰值速度预测公式。采用多元非线性回归拟合法,结合某矿山爆破现场实测数据进行了质点峰值振动速度预测,并与常用的质点振动速度公式的预测结果进行了对比。结果表明:基于量纲分析构建的爆破振动质点峰值速度公式的预测精度更高,水平径向、水平切向、竖直方向上质点峰值振动速度的预测值与实测值之间的相对误差平均值均最小,分别为14.62%、12.46%、12.17%,预测精度较现有公式分别高出5.01%~10.28%、1.92%~10.55%、6.07%~16.16%。

关键词: 爆破振动, 峰值速度, 量纲分析, 多元非线性回归拟合

Abstract: The particle peak velocity prediction of blasting vibration is an important part of blasting design and blasting disaster control.Based on dimensional analysis theory,the terrain (elevation difference and horizontal distance) influence factors between the blasting vibration velocity monitoring point and the explosion source are considered,and the peak velocity prediction formula of the blasting vibration is reconstructed.Combined with the actual measured data of blasting vibration in a mine,the comparing work is taken with multivariate nonlinear regression fitting method between the prediction results of new formula and other formulas.The results show that the blasting vibration particle peak velocity formula based on dimensional analysis is more accurate,the average relative error between the predicted and measured peak velocity of the particle vibration in horizontal radial,horizontal tangential,vertical direction is the smallest,which is respectively 14.62%,12.46%and 12.17%,and the prediction accuracy is 5.01%~10.28%,1.92%~10.55% and 6.07%~16.16% higher than that of the existing formulas respectively.

Key words: Blasting vibration, Peak particle velocity, Dimensional analysis, Multivariate nonlinear regression fitting