| 海底下框架式分层充填法开采中矿岩稳定性分析 |
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| 引用本文： | 彭康,李夕兵,彭述权,刘志祥,赵国彦.海底下框架式分层充填法开采中矿岩稳定性分析[J].中南大学学报(自然科学版),2011,42(11). |
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| 作者姓名： | 彭康 李夕兵 彭述权 刘志祥 赵国彦 |
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| 作者单位： | 中南大学资源与安全工程学院,湖南长沙,410083 |
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| 基金项目： | 国家重点基础研究计划("973"计划)，中国博士后基金资助项目，国家自然科学基金资助项目 |
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| 摘 要： | 从矿山开采技术条件出发,采用盘区框架式机械化上向水平分层充填法开采,矿区海下第四系与基岩接触部位有一层分布连续且遍布整个矿区的第四系底部隔水带隔断海水的渗流,若开采后沉降不均匀将破坏隔水带从而导致突水事故.根据矿区开拓方式选择矿体左翼到右翼、矿体中央到两翼、隔2采1、矿体两翼到中央4种开采顺序,分析不同开采顺序极限开采后的安全系数及矿区沉降规律,通过现场工程实践及位移监测验证该开采顺序的合理性.结果表明:隔2采1开采顺序为最佳开采顺序.
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| 关 键 词： | 海底下开采 开采顺序 安全系数 矿区位移 |
Ore-rock stability of frame stope hierarchical level filling mining method in seabed mining |
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| PENG Kang,Li Xi-bing,PENG Shu-quan,LIU Zhi-xiang,ZHAO Guo-yan.Ore-rock stability of frame stope hierarchical level filling mining method in seabed mining[J].Journal of Central South University:Science and Technology,2011,42(11). |
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| Authors: | PENG Kang Li Xi-bing PENG Shu-quan LIU Zhi-xiang ZHAO Guo-yan |
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| Institution: | PENG Kang,Li Xi-bing,PENG Shu-quan,LIU Zhi-xiang,ZHAO Guo-yan (School of Resource and Safety Engineering,Central South University,Changsha 410083,China) |
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| Abstract: | In terms of the technical conditions,it adopts frame stope mechanical upward horizontal slicing and filling intensify mining.There is an impermeable bottom of the fourth line with cut off water seepage in the fourth line and bedrock contact area,continuous and distributed throughout the mine.If there is uniform settlement after mining,it would destroy the water impermeable belt and result in sudden accidents.According to the ways,four kinds of ore mining sequence were choose: from the left ore body to the r... |
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| Keywords: | seabed mining mining sequence safety factor mining area displacement |
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