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作 者:黄维新[1] 贾明涛[1] 王李管[1] 潘长良[1]
机构地区:[1]中南大学资源与安全工程学院,湖南长沙410083
出 处:《中国钼业》2008年第6期18-23,共6页China Molybdenum Industry
基 金:国家自然科学基金重大项目(50490274);国家"十五"科技攻关项目(2004BA615A-04)
摘 要:冬瓜山铜矿是典型的千米深井矿山,深井具有高应力、存在岩爆倾向的特点。根据采切工程的性质、岩石物理力学试验、服务时间及矿岩的破碎程度,总结了冬瓜山矿井巷道工程变形破坏的一般规律。对影响冬瓜山深井巷道变形破坏形式的主要影响因素从地质构造条件、技术及管理等方面进行了深入的分析,对凿岩硐室、隔离矿柱、出矿巷道、出矿进路等主要回采作业地点中已出现的变形破坏情况,采用了不同的锚杆、喷锚、喷锚网+锚索联合支护形式及参数支护措施,取得了很好的效果,基本保持了采切巷道工程的稳定性,为下步安全回采作业及大量出矿创造了很好的条件。Dongguashan Copper Mine is a kilometer deep mine, which has such characteristics as high stress and rockburst possibility. On the basis of character of mining, physical and mechanical tests of rock, serving hours and crashing degree of rock, it summarizes common rules of laneway project of Dongguashan Copper Mine. This paper analyzes mostly influencing factors of laneway distortion and destroys from the aspects of terra structure and tech- nique and management. It also introduces diverse anchor poles, spraying anchors, spraying anchor nets and anchor cables as a whole of timbering shape and parameter supporting measure to solve the arisen distortion and destroy things from which rock room, separating jamb, mining of laneway, mining of road and acquire a good effect, which can keep stability of laneway project in a great extent and also can create a better condition for next secure mining.
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