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首页> 外文会议>2011 International Conference on Materials for Renewable Energy Environment >Study on steep slope stability of coal mine under open-pit and underground mining
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Study on steep slope stability of coal mine under open-pit and underground mining

机译：露天和地下开采下煤矿陡坡稳定性研究

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摘要

Northwest slope of An Taibao open-pit mine in Shanxi province is under the condition of open-pit and underground combined mining, based on this slope project, the computation model is established for research and analysis using MIDAS / GTS and FLAC3D software, the deformation response characteristics of steep slope are researched by the method of numerical simulation. It is demonstrated that the steep slope formed by open-pit mining has a certain deformation response after the underground mining of No.4 coal, which is little effected, with the continuing advance of No.9 coal mining working face, the deformation of steep slope is increasing, it is expected that the maximum subsidence will be up to 3.12m, and the maximum displacement toward free face will be up to 0.48m after the mining of 9005 working face. According to the above study, it is suggested that monitoring and reinforcement measures should be taken in the study area, in order to realize sustainable development and utilization of coal resources.
机译：山西省安太堡露天矿西北边坡处于露天与地下联合开采的条件下，在该边坡工程的基础上，利用MIDAS / GTS和FLAC3D软件建立了计算模型，供研究分析。通过数值模拟的方法研究了陡坡的响应特性。结果表明，露天开采形成的陡坡在对4号煤进行地下开采后具有一定的变形响应，影响不大，随着9号采煤工作面的不断推进，陡坡的变形边坡在增加，预计开采9005个工作面后，最大沉降量可达3.12m，向自由面的最大位移量可达0.48m。根据以上研究，建议在研究区采取监测和加固措施，以实现煤炭资源的可持续开发利用。

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