基于通径系数的隧道爆破振动影响因素敏感性分析  

Sensitivity Analysis of Influencing Factors of Tunnel Blasting Vibration Based on Path Coefficient

作　　者：徐晓东[1] XU Xiaodong(Barun Mining Branch,Inner Mongolia Baotou Steel Union Co.,Ltd.)

机构地区：[1]内蒙古包钢钢联股份有限公司巴润矿业分公司

出　　处：《现代矿业》2023年第12期223-225,228,共4页Modern Mining

摘　　要：为客观评价隧道爆破作业中各影响因素对爆破振动的影响,基于现场振动监测数据,采用通径系数法对影响因素进行分析。结果表明:爆破设计参数对爆破振动速度有直接影响,设计参数之间的间接影响也不能忽视;敏感性最大为爆心距,其次是最小延期间隔时间、掏槽孔最大段药量,然后依次为总药量、最大段药量、雷管段数等。通径分析法适应性强,为爆破作业的效果分析提供了新方法。In order to objectively evaluate the influence of various influencing factors on blasting vibration in tunnel blasting operation,based on the field vibration monitoring data,the path coefficient method is used to analyze the influencing factors.The results show that the blasting design parameters have a direct influence on the blasting vibration velocity,and the indirect influence between the design parameters can not be ignored.The maximum sensitivity is the explosion center distance,followed by the minimum delay interval time,the maximum section charge of the cut hole,and then the total charge,the maximum section charge,the number of detonator sections,etc.The path analysis method has strong adaptability and provides a new method for the effect analysis of blasting operation.

关 键 词：爆破振动 通径系数 敏感性分析 振动峰值 

分 类 号：U455.6[建筑科学—桥梁与隧道工程]