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作 者:彭锦浩 付玉华[1,2] 陈元利 张康康 罗道清 PENG Jinhao;FU Yuhua;CHEN Yuanli;ZHANG Kangkang;LUO Daoqing(College of Resources and Environmental Engineering,Jjiangxi University of Science and Technology,Ganzhou,Jiangxi 341000,China;Key Laboratory of Mining Engineering of Jiangxi Province,Ganzhou,Jiangxi 341000;Fujian Makeng Mining Co.,Ltd,Longyan,Fujian 364021,China)
机构地区:[1]江西理工大学资源与环境工程学院,江西赣州市341000 [2]江西省矿业工程重点实验室,江西赣州市341000 [3]福建马坑矿业股份有限公司,福建龙岩市364021
出 处:《矿业研究与开发》2020年第9期23-26,共4页Mining Research and Development
摘 要:以马坑铁矿巷道掘进为研究背景,为解决施工中存在的巷道成形不规整,炮孔利用率仅79%左右2个问题,开展爆破漏斗试验,并结合理论计算优化设计一次成巷爆破方案。现场试验表明,一次成巷爆破每循环进尺2.51m,炮孔利用率达93%左右,周边半孔率达81%左右,巷道成型质量达到亚光面爆破效果。Taking the roadway excavation of the Makeng Iron Mine as the research background,the construction has two problems that the formation of roadway is irregular,and the utilization rate of blast hole is about 79%.In order to solve these problems,blasting funnel tests were carried out,and a blasting scheme for tunneling was designed by theoretical calculations.Field tests show that simultaneous drifting footage per cycle is 2.51 m,the blasthole utilization rate is about 93%,the half-hole rate is about 81%,and the roadway forming quality reaches smooth blasting effect.
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