反映高差影响的爆破振动传播经验公式研究  

Study on Empirical Formula of Blasting Vibration Propagation Reflecting the Influence of Height Difference

作　　者：徐向东 陆瑜[1] XU Xiangdong;LU Shouyu(Guizhou Transportation planning Survey,Design and Research Institute Co.,Ltd.,Guiyang 550081,China)

机构地区：[1]贵州省交通规划勘察设计研究院股份有限公司,贵阳550081

出　　处：《自动化与仪器仪表》2023年第6期63-66,共4页Automation & Instrumentation

基　　金：交通运输行业重点科技项目(2018-ZD5-032)。

摘　　要：为了提高山区起伏地形条件下爆破振动传播衰减规律的预测精度,通过分析沿印松高速端公山隧道3个测点的爆破振动监测数据,对现有的经验公式进行了改进,在保留高差因子的同时,增加水平距离因子来再次表征高差的影响。采用与其他经验公式对比的方式验证改进公式的预测精度及可靠性,分别用萨道夫斯基经验公式、考虑高差的经验预测公式以及改进的经验预测公式对监测数据进行非线性拟合,计算得到改进公式的拟合相关性系数R2比其他经验公式高,同时预测误差最小,说明改进的经验公式可以提高预测精度,对于预测贵州山区起伏地形条件下爆破振动传播规律具有一定的借鉴意义。In order to improve the prediction accuracy of blasting vibration propagation and attenuation law under the condition of undulating terrain in mountainous area,the existing empirical formula is improved by analyzing the blasting vibration monitoring data of three measuring points along Gongshan Tunnel at the end of Yinsong Expressway.While retaining the height difference factor,the horizontal distance factor is added to characterize the influence of height difference again.The prediction accuracy and reliability of the improved formula are verified by comparing with other empirical formulas,Sadolfsky empirical formula,empirical prediction for-mula considering height difference and improved empirical prediction formula are used to fit the monitoring data nonlinearly.The fit-ting correlation coefficient R2 of the improved formula is higher than that of other empirical formulas,and the prediction error is the smallest,which shows that the improved empirical formula can improve the prediction accuracy and has certain reference significance for predicting the propagation law of blasting vibration under the undulating terrain conditions in Guizhou mountainous areas.

关 键 词：爆破振动 峰值振速 高差 测振仪 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]