| 内排土压脚回填技术在安家岭露井联采中应用 |
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| 引用本文： | 张志平.内排土压脚回填技术在安家岭露井联采中应用[J].煤炭科学技术,2010,38(1). |
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| 作者姓名： | 张志平 |
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| 作者单位： | 中国矿业大学,江苏,徐州,221008 |
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| 摘 要： | 为治理安家岭矿区露天边坡滑坡及井工矿开采巷道变形,采用FLAC数值模拟,详细分析了内排土压脚回填前后安家岭露天矿边坡及在该边坡下布置的井工矿巷道围岩的应力场及位移场变化规律,并重点分析了不同回填高度对边坡及巷道稳定性的影响。研究结果表明,回填至标高+1358.8m后巷道破坏区不再与前端煤柱破坏区相连通,回填至标高+1393.6m后边坡及巷道围岩的水平位移减少幅度超过60%,煤柱承载力弱化比例明显降低。
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| 关 键 词： | 压脚回填 边坡稳定性 巷道稳定性 回填高度 |
Application of In-Pit Dumping with Compacted Foot Backfill Technology to Anjialing Surface and Underground Combined Mining |
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| ZHANG Zhi-ping.Application of In-Pit Dumping with Compacted Foot Backfill Technology to Anjialing Surface and Underground Combined Mining[J].Coal Science and Technology,2010,38(1). |
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| Authors: | ZHANG Zhi-ping |
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| Affiliation: | China University of Mining and Technology/a>;Xuzhou 221008/a>;China |
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| Abstract: | In order to control the slope sliding and the gateway deformation in Anjialing Mine with the surface and underground combined mining,the FLAC numerical simulation was applied to in detail analyze the before and after in-pit dumping with the compacted foot backfill,the stress field and displacement variation law of the surface mine slope and the gateway surrounding rock under the surface mine slope and to analyze the different backfill height affected to the surface mine slope stability and to the undergroun... |
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| Keywords: | compacted foot backfill slope stability gateway stability backfill height |
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