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作 者:李瑞兴 LI Ruixing(Jinneng Holding Coal Industry Group Zheneng Majialiang Mine,Shuozhou 036009,Shanxi,China)
机构地区:[1]晋能控股煤业集团浙能麻家梁矿,山西朔州036009
出 处:《凿岩机械气动工具》2025年第3期80-82,共3页Rock Drilling Machinery & Pneumatic Tools
摘 要:在煤矿开采过程中,巷道掘进会对周边岩层产生显著影响,因此常采用预留煤柱的方式支撑上覆岩层,以预防矿山安全事故。然而,预留煤柱会导致工作面掘进损失,影响煤矿资源开采率。为优化煤柱宽度设置,文章采用FLAC3D软件进行仿真模拟分析,通过构建不同煤柱宽度下的工作面开采模型,详细探究了开采过程中围岩的应力变化和破坏范围,为煤矿开采提供了科学依据和技术支持,有助于提升煤矿资源开采率和生产安全性。In the process of coal mining,roadway tunneling exerts a significant influence on the surrounding rock layers.Therefore,the method of reserving coal pillars is often used to support the overlying rock layer to prevent mine safety accidents.However,reserving coal pillars can lead to the loss of working face tunneling and affect the mining rate of coal resources.In order to optimize the setting of coal pillar width,this paper uses FLAC3D software to carry out simulation analysis.By building the mining model of the working face under different coal pillar widths,the stress change and failure range of surrounding rocks in the mining process are explored in detail,which provides scientific basis and technical support for coal mining,and helps to improve the mining rate and production safety of coal mine resources.
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