露天矿边坡爆破震动动力响应分析  

Analysis of Dynamic Response of Slope Blasting Vibration in a Surface Mine

作　　者：窦晓峰[1,2] 周玉新[1,2] 许传华[1,2] 

机构地区：[1]中钢集团马鞍山矿山研究院有限公司 [2]金属矿山安全与健康国家重点实验室

出　　处：《金属矿山》2012年第2期19-21,共3页Metal Mine

摘　　要：基于有限元动力分析的基本原理，结合云南某露天矿边坡工程实例，建立边坡爆破震动动力分析模型。利用自编程序，将爆破震动实测速度时程曲线转化为加速度时程曲线来计算荷载，运用Ansys软件对该边坡进行模态分析和爆破震动加速度时程分析。分析结果表明，用时程分析法计算边坡爆破震动作用下的动力响应结果能够较真实地反映矿山边坡的动态特征以及爆破震动对边坡的扰动作用。On the basis of the basic principle of the dynamic finite elements analysis, and taking a Yunnan surface mine as a case, a dynamic analysis model of the slope blasting vibration is established. With the use of self-programmed procedure ,the real speed time-history curve of blasting vibration is transformed into the accelerated time-history curve to calculate the loading. The modal analysis and time-history analysis of blasting vibration acceleration on slope is carried out by ANSYS software. The analysis results show that the dynamic response in the slope blasting vibration by means of the timehistory method can actually reflect the dynamic characteristics of slope and the disturbance action of slope during blasting vibration.

关 键 词：边坡 爆破震动 动力响应 时程分析 

分 类 号：TD854.6[矿业工程—金属矿开采]