In order to minimize the influence of blasting vibration of high slope on itself and surrounding structures (build-ings),it is necessary to accurately and timely predict and control the blasting vibration of high slope. The empirical formula after the correction of elevation difference was selected as the prediction model of peak particle vibration velocity,and the pa-rameters K,α and β of the prediction model were solved by using the principle of least squares. Considering the randomness of blasting vibration,the standard normalization of distribution function was conducted by assuming that the peak vibration veloc-ity of the measured particles obeyed the normal distribution. Finally,the concept of confidence in probability theory was intro-duced,then the prediction and control models of blasting vibration safety level,maximum single-stage safety dosage and safety range were established and applied in engineering examples. The results show that the prediction results of blasting vibration prediction and control model based on probability theory are more reliable. The research results can provide reference for the application of the model in the safety control of blasting vibration in similar projects.
关键词
高边坡爆破/质点峰值振动速度预测模型/概率论/安全范围预测及控制模型
Key words
high slope blasting/prediction model of peak particle vibration velocity/probability theory/safety range predic-tion and control model
维普
万方数据