摘要
为了解采场正常生产爆破产生的动力效应对边坡产生的影响,摸清边坡爆破开挖的动力响应规律,在紫金山金铜矿,采用施工现场爆破振动测试结果分析和数据回归分析相结合的方法,对露采边坡进行分析研究,结果显示:临近边坡控制爆破总药量并合理设计起爆顺序,在靠帮和并段爆破采用预裂爆破方法,将有利于形成完整台阶,减小爆破后冲对台阶的直接破坏,把正常的生产爆破对边坡稳定所造成的不利影响程度降到最小。
In order to analyze the blasting effects during the mining operation and the dynamic response of the slope excavation by blasting, the vibrations on the open pit slopes induced by the blasting are monitored and the collected data are analyzed by the regression method. The results indicate, at locations close to the slope, the controlled blasting is necessary. The total blas- ting charge as well as the initiation sequence should be carefully designed. The pre-split blasting is necessary at locations near the end and at the bench of the slope in order to maintain the integrity of the bench and minimize the direct blasting impact on the bench.
出处
《土工基础》
2014年第6期103-107,共5页
Soil Engineering and Foundation
关键词
采场边坡
中深孔爆破
振动测试
回归分析
Open-Pit Slope, Medium Length Hole Blasting, Blasting Vibration Monitoring, Regression Analysis
