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- wedge pillar mining method 刀柱法采煤
- Technical analysis on feasibility of new room and pillar mining method 新型房柱式采煤法可行性技术分析
- Ore Recovering from Goaf of Room and Pillar Mining Method in Xishan Gypsum Mine, Taiyuan City, Shanxi Province 西山石膏矿房柱采矿法采空区矿石回收
- Application of Pedrail-walking Type Hydraulic Supports in Board and Pillar Mining method 房柱式开采中履带行走式液压支架的应用
- Roof Control Design and Practice of Very Hard Roof in Coalface Instead of Knife and Pillar Mining Method in Mentougou Mine- 门头沟矿坚硬顶板取消刀柱顶板控制设计及实践
- Effective recovery of residual coal was realized by controlling centralized stress of wedge pillar in gob and rational equipment match of recovery mining face. 通过对刀柱老采区煤柱集中应力的控制,以及复采工作面装备的合理配套,实现刀柱下遗留煤体的有效回收,提高煤炭资源采出率,增加企业经济效益。
- Keywords High level pillar mining;Cemented fill-mass;Large diameter longhole mining method;Heterogenous interface control blast; 高阶段矿柱回采;胶结充填体;大直径深孔采矿法;异质界面控制爆破技术;
- board and pillar mining method 残柱式开采法
- tool pillar mining method 刀柱采煤法
- pillar mining method 刀柱采煤法
- recovery mining under wedge pillar 刀柱下复采
- Practical experiences with shrinkage mining method for pillar extraction over the pust ten years were summarized. 从我矿资源和矿柱回采实际情况出发,总结了近十几年来用留矿法回采底柱的实践经验。
- The upward horizontal slice stoping and filling without intervening pillar is the main mining method in Huangshaping Pb-Zn Mine. 摘要上向水平分层充镇无间柱采矿法是黄沙坪铅锌矿的主要采矿方法。
- It is a key for a high level pillar mining's success to prevent backfill from being destroyed. 充填体不产生大规模破坏是高阶段矿柱成功回采的关键。
- Discussion on the Mining Method of Jilongshan Mineral Industry Co., Ltd. 鸡笼山矿业有限公司采矿方法探讨。
- A new process mining method was presented based on Markov transition matrix. 提出了一种基于马尔可夫转移矩阵的过程挖掘方法。
- Parker Formation coal mine blast mining method adopted, with 450 employees. 柏家沟煤矿采取爆破采煤法，拥有职工450人。
- We have raised the coal output by using better mining methods. 我们利用更好的采煤法增加了煤炭产量。
- Borehole hydromining is a kind of safe and efficient new mining method . 钻孔水力采煤是一种既安全、又能极大地提高资源利用率的新的采矿方法。
- This paper presents some concrete countermeasures by analyzing ore rock stability for pillar keep, mining series and multistage mining method of large tractmining secondary project. 本文对二期工作大面积开采范围的矿柱留设、开采顺序、多阶段开采等问题，通过矿岩稳定性分析提出了具体的对策。
