落矿爆破地震效应灰关联分析  

Gray Correlation Analysis of Seismic Effect of Mining Blasting

作　　者：吴健飞[1] 叶义成[1] 刘艳章[1] 王其虎[1] 王水平 陈基龙 

机构地区：[1]武汉科技大学资源与环境工程学院,武汉430081 [2]武钢矿业公司金山店铁矿,黄石435116

出　　处：《爆破》2013年第4期137-142,共6页Blasting

基　　金："十二五"国家科技支撑计划资助项目(2011BAB05B03);国家自然科学基金面上项目(编号51074115)

摘　　要：为研究金山店铁矿落矿爆破地震效应对地表建(构)筑物的影响程度,运用灰色绝对关联分析法对落矿爆破地震效应的影响因素进行敏感性分析,确定落矿爆破地震效应影响因素的主次顺序。以金山店铁矿地表现场实测所得-326 m分段水平的10组扇形中深孔排面落矿爆破地震效应的数据为分析样本,以最大振速、主振频率及持续时间作为衡量爆破地震效应的系统特征变量,并选取排数、炮孔数、总装药量、段数、最大单段药量、微差时间、最小抵抗线、爆心距、高程差、测点地质条件作为评价落矿爆破地震效应的系统相关变量,运用灰色绝对关联法进行计算,结果表明最大单段药量、爆心距和地质条件为主控因素,为矿山生产过程中降低落矿爆破地震效应提供了定量依据。To analyze the seismic effect of mining blasting on surface building （structure） of Jinshandian iron mine,the gray absolute correlation analysis method was applied to study the sensitivity levels of the factors which influenced the seismic effect of mining blasting,thus to determine the primary and secondary order of these influencing factors.Data from 10 groups＇ fan-pattern hole blasting effect at the level of-326 m were measured on the ground surface of iron mine.The maximum vibration velocity and dominating vibration frequency and duration were applied as the systematic characteristic variables of the seismic effect of mining blasting.Blasting parameters,such as rows,blasting hole quantity,total charge amounts,number of delay,maximum charge amount per delay,millisecond delay time,burden,distance to blast source,height deviation and geological condition,were selected as the related factor variables to estimate the seismic effect of mining blasting.The calculated results of gray absolute correlation analysis method showed that the maximum charge amount per delay,distance from blast source and geological condition were the master factors on the seismic effect of mining blasting in mining operation.

关 键 词：落矿爆破 地震效应 灰关联分析 主控因素 金山店铁矿 

分 类 号：O383[理学—流体力学]