【摘要】 本文针对模拟吉山铁矿正常爆破开采的最大药量,采用台阶深孔微差爆破开采露天矿石,进行了爆破地震动的观测研究,将矿区开采点至居民点建筑群间不同距离的爆破地震动峰值加速度和峰值速度的观测值,应用回归分析方法得到吉山铁矿爆破公害的估计公式。更多还原

【Abstract】 In this paper a simulant blast with maximum dynamite for normal quarrying was applied to investigate the induced ground motion.The estimating formula of blast pollution was obtained through regession analysis of the observational peak velocity and peak acceleration values of blastinduced ground motion from different measuring points between seismic source and resedential buildings. It can be used not only for estimating risk of nearby buildings,but for mining programme and land utilization of Jishan mine,and also for estimating blast pollution of mining areas with similar geological conditions.更多还原