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| 济三煤矿深孔定向水力致裂防冲技术 | |
| 引用本文： | 吴向前,窦林名,贺虎,张士斌,桂兵,郑有雷.济三煤矿深孔定向水力致裂防冲技术[J].中国煤炭,2011,37(10). |
| 作者姓名： | 吴向前 窦林名 贺虎 张士斌 桂兵 郑有雷 |
| 作者单位： | 1. 中国矿业大学矿业工程学院煤炭资源与安全开采国家重点实验室,江苏省徐州市,221008;兖州煤业股份有限公司济三煤矿,山东省济宁市,272000 2. 中国矿业大学矿业工程学院煤炭资源与安全开采国家重点实验室,江苏省徐州市,221008 3. 兖州煤业股份有限公司济三煤矿,山东省济宁市,272000 |
| 摘 要： | 煤矿坚硬顶板是诱发冲击矿压的重要因素,在系统分析了济三煤矿两起典型冲击矿压发生特点的基础上,指出了济三煤矿矿压特点为坚硬顶板型冲击矿压.针对目前治理坚硬顶板技术还存在明显不足的情况,在引进波兰定向水力装备的基础上,开发了适合济三煤矿条件下的深孔定向水力致裂防冲技术.通过改进供液与送管工艺,实现了此技术的自动化与孔深限制,极大地拓展了技术的效率与安全性.在63下05与53下 07工作面进行了垂直分层与倾斜切断顶板应用,最大孔深达到了20 m,致裂半径10m以上.钻屑法监测结果显示,致裂顶板区域,钻屑量较致裂前明显减少,并均低于临界值. |
| 关 键 词： | 坚硬顶板 冲击矿压 定向致裂 深孔 |
Technology of directional hydraulic fracture for rock-burst prevention in Jisan coal mine |
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| Wu Xiangqian , Dou Linming , He Hu , Zhang Shibin , Gui Bing , Zheng Youlei.Technology of directional hydraulic fracture for rock-burst prevention in Jisan coal mine[J].China Coal,2011,37(10). | |
| Authors: | Wu Xiangqian Dou Linming He Hu Zhang Shibin Gui Bing Zheng Youlei |
| Affiliation: | Wu Xiangqian1,2,Dou Linming1,He Hu1,Zhang Shibin2,Gui Bing2,Zheng Youlei2(1.State Key Laboratory of Coal Resources and Safety Mining,School of Mines,China University of Mining and Technology,Xuzhou,Jiangsu 221008,China,2.Jisan Coal Mine,Yanzhou Coal Mining Company Ltd.,Jining,Shandong 272000,China) |
| Abstract: | Hard and thick roof is the main factor inducing rock-burst disaster in coal mines.The systematic analysis of characteristics and laws of two rock-burst events in Jisan coal mine indicated that two accidents all belong to hard-roof rock burst.Aimed at the defects of present methods for hard roof control,the directional hydraulic equipment was introduced and the technology of rock-burst prevention was developed for Jisan coal mine.The automation and the hole-depth control were achieved by improvement of liqui... |
| Keywords: | hard roof rockburst hydraulic directional fracturing deep hole |
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