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焦家金矿下向进路充填采矿法人工假顶优化设计及应用
- 作者：
- 李湘洋|宋卫东|杨勇|何国强|曹帅
- 作者单位：
- is null
基金项目：
- 国家自然科学青年基金（51804017）；博士后基金面上项目（2018M631341）
详细信息：
- 作者简介：
- 李湘洋（1994—），男，黑龙江双鸭山人，硕士研究生，研究方向为采矿工艺及岩石力学等；北京市海淀区学院路30号，北京科技大学土木与资源工程学院，100083；E-mail：15650786228@163.com
- 通讯作者：
- E-mail:sandy_cao@ustb.edu.cn，13436667854
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Design and application of artificial roof in underhand cut and fill mining method in Jiaojia Gold Mine
- English Author：
- School of Civil and Resource Engineering,University of Science and Technology Beijing&State Key Laboratory of High-efficient Mining and Safety of Metal Mines,Ministry of Education,University of Science and Technology Beijing|School of Civil and Resource Engineering,University of Science and Technology Beijing&State Key Laboratory of High-efficient Mining and Safety of Metal Mines,Ministry of Education,University of Science and Technology Beijing|Jiaojia Gold Mine,Shandong Gold Group Co.,Ltd.|Jiaojia Gold Mine,Shandong Gold Group Co.,Ltd.|School of Civil and Resource Engineering,University of Science and Technology Beijing&State Key Laboratory of High-efficient Mining and Safety of Metal Mines,Ministry of Education,University of Science and Technology Beijing
- Unit：
- 摘要
- 在线预览
- 参考文献
摘要:
针对焦家金矿北翼矿体下向进路充填采矿法人工假顶失稳的问题，在现场调研的基础上分析了人工假顶失效原因，并提出了人工假顶优化设计方案。将“田”字形布置的进路改为“品”字形布置，采用吊筋连接相邻进路人工假顶，增设竖筋，充分利用胶结充填人工假顶强度，提高了人工假顶的稳定性。现场工业应用取得了较好的效果，采矿成本降低了18.88元/t。该人工假顶优化设计施工方案为焦家金矿北翼矿体安全高效回采提供指导，对类似矿山人工假顶构筑具有一定的参考价值。
关键词:
人工假顶；下向进路充填采矿法；胶结充填；进路布置；稳定性
Abstract:
In light of the unstable artificial roof failure in the process of underhand cut and fill at the north wing ore bodies of Jiaojia Gold Mine,the cause for the artificial roof failure is analyzed based on field survey and the optimized design is put forward.The “田” layout is changed to “品” layout.Adjacent artificial roofs are connected by hanging bars.Vertical bars are added.The cemented filling artificial roof strength is fully utilized and artificial roof stability.Insitu industrial application has achieved good outcome and mining cost is reduced by 18.88 yuan/t.The artificial roof optimization design construction plan provides guidance for safe and efficient extraction of the north wing ore bodies in Jiaojia Gold Mine and can be used as reference for artificial roof construction in similar mines.
Keywords:
artificial roof;underhand cut and fill mining method;cemented filling;access layout;stability
