双鸭山铁矿诱导冒落法试验研究
针对双鸭山铁矿北区急倾斜破碎中厚矿体实际生产中存在的采准、切割工程难以形成，采场安全条件极差，损失、贫化大等问题，提出了切割巷＋斜排炮孔拉槽、两端退采的诱导冒落法开采方案．给出了适合该类矿体的诱导工程参数，分析研究了其冒落进程、冒落块度，并预算了崩矿损失率、贫化率，依此在双鸭山铁矿s5采场进行试验．跟班标定表明，回采初期，回收率较高，冒落块度良好，与分析情况基本吻合；诱导区顶板冒透后，混岩率呈交替上升趋势变化，其现象与爆破块度及凿岩巷道位置有关．该法回收指标较好，可有效解决急倾斜破碎中厚矿体开采难题．...
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| Published in | 东北大学学报（自然科学版） Vol. 37; no. 1; pp. 69 - 73 |
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| Main Author | |
| Format | Journal Article |
| Language | Chinese |
| Published |
东北大学资源与土木工程学院,辽宁沈阳,110819%双鸭山建龙矿业有限公司,黑龙江双鸭山,155126
2016
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| Subjects | |
| Online Access | Get full text |
| ISSN | 1005-3026 |
| DOI | 10.3969/j.issn.1005-3026.2016.01.015 |
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| Summary: | 针对双鸭山铁矿北区急倾斜破碎中厚矿体实际生产中存在的采准、切割工程难以形成，采场安全条件极差，损失、贫化大等问题，提出了切割巷＋斜排炮孔拉槽、两端退采的诱导冒落法开采方案．给出了适合该类矿体的诱导工程参数，分析研究了其冒落进程、冒落块度，并预算了崩矿损失率、贫化率，依此在双鸭山铁矿s5采场进行试验．跟班标定表明，回采初期，回收率较高，冒落块度良好，与分析情况基本吻合；诱导区顶板冒透后，混岩率呈交替上升趋势变化，其现象与爆破块度及凿岩巷道位置有关．该法回收指标较好，可有效解决急倾斜破碎中厚矿体开采难题． |
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| Bibliography: | MA Jiao-yang , REN Feng-yu , HE Rong-xing , YAN Xi-ming （1. School of Resources ＆ Civil Engineering, Northeastern University, Shenyang 110819, China; 2. Shuangyashan Mining Company of Jianlong Iron ＆ Steel Group Co., Ltd., Shuangyashan 155126, China. Corresponding author： MA Jiao-yang, E-mail ： mjy20006@ 126. com） 21-1344/T steeply inclined and fractured medium thick orebody;induced caving method;ore lossrate; ore dilution rate; ore lumpiness The cutting roadway, the broached groove of oblique blasthole and both ends retreat mining of the induced caving method was proposed due to difficult stope preparation and cutting engineering, poor stope safety conditions and high loss and dilution of the steeply inclined and fractured medium thick orebody in Shuangyashan iron mine. The suitable parameters to induce orebody caving were given. The caving process and the lumpiness of caving block were analyzed and the loss rate and dilution rate of caving ore were estimated based on the No. $5 stope in Shuangyashan iron mine. |
| ISSN: | 1005-3026 |
| DOI: | 10.3969/j.issn.1005-3026.2016.01.015 |