| 朱仙庄煤矿松软破碎岩层巷道底鼓控制技术 |
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| 引用本文： | 安智海,张农,倪建明,许兴亮.朱仙庄煤矿松软破碎岩层巷道底鼓控制技术[J].采矿与安全工程学报,2008,25(3). |
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| 作者姓名： | 安智海 张农 倪建明 许兴亮 |
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| 作者单位： | 1. 中国矿业大学,煤炭资源与安全开采国家重点实验室,江苏,徐州,221008
2. 淮北矿业集团,安徽,淮北,235006 |
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| 基金项目： | 国家自然科学基金，教育部跨世纪优秀人才培养计划 |
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| 摘 要： | 以朱仙庄煤矿二水平25回风上山为例,分析了该巷难于维护的基本特征.针对该矿软岩巷道底鼓量巨大的特点,依据软岩巷道分阶段动态加固理论,提出适合该巷道维护特点的初喷混凝土喷层、顶帮高性能高强预应力锚网支护、及关键部位加强锚索支护、滞后注浆的支护方式.研究结果表明,该支护方式在巷道中得到成功应用,取得了良好的技术经济效果.通过数值模拟,对比分析不同支护形式下巷道变形破坏,预测围岩变形,为现场施工和关键部位加强支护提供了参考.
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| 关 键 词： | 底鼓 锚喷支护 滞后注浆 数值模拟 软岩巷道 |
Floor Heave Control Technique for Broken Soft Rock Roadway in Zhuxianzhuang Mine |
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| AN Zhi-hai,ZHANG Nong,NI Jian-ming,XU Xing-liang.Floor Heave Control Technique for Broken Soft Rock Roadway in Zhuxianzhuang Mine[J].Journal of Mining and Safety Engineering,2008,25(3). |
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| Authors: | AN Zhi-hai ZHANG Nong NI Jian-ming XU Xing-liang |
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| Abstract: | Taking No.25 air rise roadway at the secondary level in Zhuxianzhuang Mine as an example,we analyzed the difficulties in roadway maintenance.Aiming at the character of large volume of floor heave and based on reinforcing theory for soft rock roadway,we proposed a new support method: first spraying,high intensity prestress cable-net supporting,key position reinforced cable bolting,and lag grouting.The practice shows that this method is quite suitable for this mine.Using numerical simulation,we compared the d... |
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| Keywords: | floor heave bolting and spraying lag grouting numerical simulation soft rock roadway |
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