【作者】 王永庆； 李萍丰；

【Author】 WANG Yong-qing~(1,2),LI Ping-feng~(1,2) (1.China University of Geosciences(Beijing),Beijing 100083,China; 2.Guangdong Handar Blasting Engineering Co Ltd,Guangzhou 510623,China)

【机构】 中国地质大学(北京)； 广东宏大爆破工程有限公司；

【摘要】 对台阶爆破深孔条件下径向不耦合不均匀装药爆破过程进行数值模拟,研究岩体在深孔径向不耦合不均匀装药时岩体中应力的变化过程。并与耦合装药爆破岩体中应力的变化过程进行比较,得出深孔条件下的径向不耦合不均匀装药爆破粉矿最低的结论,从理论上验证了某采石场采用径向不耦合不均匀装药爆破技术是控制粉矿的最佳手段之一。更多还原

【Abstract】 The variation process of stress in rock mass under uncoupling and nonuniform radial projectile filling in bench blasting for deep hole was studied by means of numerical simulation.The result shows that fine ore is lowest by uses of uncoupling nonuniform radial projectile filling compared with coupling and uniformity.This result validated that the technique of uncoupling and nonuniform radial projectile filling in bench blasting for deep hole is the best to control fine ore.更多还原