| 深部破碎带矿体顶板冒落防治技术 |
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| 引用本文： | 卢央泽,苏建军,李晓芸.深部破碎带矿体顶板冒落防治技术[J].采矿与安全工程学报,2009,26(1). |
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| 作者姓名： | 卢央泽 苏建军 李晓芸 |
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| 作者单位： | 1. 中冶京诚秦皇岛工程技术有限公司,河北,秦皇岛,066001
2. 长沙有色冶金设计研究院,湖南长沙,410011 |
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| 摘 要： | 为解决康家湾深部破碎带矿体顶板冒落问题,实现矿体安全回采.通过矿岩室内力学性质实验、控顶措施的比较研究和数值模拟,测定了矿岩的力学参数,对顶板冒落的现象和原因进行了分类和分析,就几种常用的控顶措施进行了比较研究,并对采场结构参数进行了多方案比较和分析.研究表明,顶板冒落可分为地质构造因素造成的冒落、应力集中造成的冒落和设计回采过程中的潜在问题造成的冒落三类;预留矿柱、锚杆支护、人工假顶和切顶等措施都不是很有效的方法.预留护顶层是相对较好的控项措施,可以更好地控制破碎顶板的运动,能有效保证采场的安全;较合适的结构参数为8 m×4 m(跨度×高度).
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| 关 键 词： | 深部破碎矿体 顶板冒落 采场结构参数 数值模拟 |
Prevention Measures for Roof Caving in Orebody of Deep Broken Zone |
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| LU Yang-ze,SU Jian-jun,LI Xiao-yun.Prevention Measures for Roof Caving in Orebody of Deep Broken Zone[J].Journal of Mining and Safety Engineering,2009,26(1). |
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| Authors: | LU Yang-ze SU Jian-jun LI Xiao-yun |
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| Affiliation: | 1.Capital Engineering & Research Incorporation Qinhuangdao Co.Ltd.;Qinhuangdao;Hebei 066001;China;2.Changsha Engineering & Research Institute of Nonferrous Metallurgy;Changsha;Hunan 410011;China |
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| Abstract: | In order to solve the problem of roof caving of orebody in deep broken zone of Kangjiawan mine so as to realize safety mining,we performed the mechanical experiment of rocks,compared and numerically simulated the roof controlling measures,tested the mechanical parameters of rocks,analyzed and classified caving phenomenon.The result indicates that there are three factors causing roof caving: geological structure,stress concentration,and potential problems in mining process.Reserving ore pillars,anchor suppor... |
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| Keywords: | deep-cracked ore roof caving stope parameter numerical simulation |
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