| 提高复杂条件综放面回收率的研究 |
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| 引用本文： | 曹少娟,周拓疆,刘振波.提高复杂条件综放面回收率的研究[J].煤炭技术,2009,28(3). |
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| 作者姓名： | 曹少娟 周拓疆 刘振波 |
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| 作者单位： | 义马煤业集团,常村煤矿,河南,义马,472302 |
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| 摘 要： | 根据某矿21112工作面煤层硬度大,局部为细砂岩顶板,又是第二分层综放开采的复杂采矿地质条件,采用理论分析和现场实测的方法,得出松动爆破预裂、水力致裂软化和适宜的放煤工艺.
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| 关 键 词： | 松动爆破 水力致裂软化 放煤工艺 |
Research on Raising Recovery Rate of Fully Mechanized Face with Caving of Roof Coal in Complex Condition |
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| CAO Shao-juan,ZHOU Tuo-jiang,LIU Zhen-bo.Research on Raising Recovery Rate of Fully Mechanized Face with Caving of Roof Coal in Complex Condition[J].Coal Technology,2009,28(3). |
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| Authors: | CAO Shao-juan ZHOU Tuo-jiang LIU Zhen-bo |
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| Affiliation: | Changcun Coal Mine;Yima Coal Industry Group;Yima 472302;China |
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| Abstract: | According to the complex geological conditions at 21112 face,such as large coal hardness,the local fine-grained sandstone roof,fully mechanized mining with caving of roof coal in the second hierarchical seam,pre-splitting with loose blasting,soften with hydraulic fracturing and fit coal caving technology are pointed out by theory analysis and the scene measuring. |
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| Keywords: | loose blasting soften with hydraulic fracturing coal caving technology |
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