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
徐晓东1
作者信息
- 1. 内蒙古包钢钢联股份有限公司巴润矿业分公司
- 折叠
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.
Abstract
In order to objectively evaluate the influence of various influencing factors on blasting vibra-tion 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 in-fluence 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 inter-val 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Key words
blasting vibration/path coefficient/sensitivity analysis/vibration peak引用本文复制引用
出版年
2023
NETL
NSTL
维普
万方数据