摘要
在“隔三采一”回采顺序下,为安全高效回采二步骤垮落采场,需结合中间的一步骤采场联合回采。以冬瓜山铜矿60#线以北大高采场为例,结合一步骤采空区垮落的特征,提出了3个或2个采场联合回采方案,通过数值模拟论证,验证了3个采场联合回采对隔离矿柱稳定性影响大,需采取安全措施保护隔离矿柱;2个采场联合回采时采空区稳定性较好。通过工业试验,3个采场及2个采场联合回采方案均取得了较好的应用效果。
In the sequence of"three mining and one stope",the two-step caving stope with safe,effi⁃cient should be combined with the one-step stope in the middle.Taking the large stope in north of 60#line of Dongguashan Copper Mine as an example,combined with the caving characteristics of one-step goaf,a joint stoping scheme of 3 or 2 stopes is proposed.Through numerical simulation,it is verified that the joint stoping of 3 stopes has great influence on the stability of isolated pillars,and safety measures should be tak⁃en to protect isolated pillars.The goaf stability is better when two stopes are combined.Through the industri⁃al test,the three stopes and the joint stope scheme of two stopes have achieved good application results.
作者
谢经鹏
孟稳权
郑攻关
汪令辉
潘敏
XIE Jingpeng;MENG wenquan;ZHENG Gongguan;WANG Linghui;PAN Min(Anhui Copper Crown Industry Technology Research Institute Co.,Ltd.;Dongguashan Copper Mine,Tongling Nonferrous Metals Group Co.,Ltd.)
出处
《现代矿业》
CAS
2022年第11期56-58,62,共4页
Modern Mining
关键词
采空区
垮落
联合回采
goaf
collapse
combined mining
作者简介
谢经鹏(1989-),男,工程师,硕士,244000安徽省铜陵市。
