| 蹬空上提面矿压显现规律的数值模拟研究 |
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| 引用本文： | 杨朋,华心祝,陈登红,马菁花. 蹬空上提面矿压显现规律的数值模拟研究[J]. 煤炭技术, 2014, 0(8): 105-108 |
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| 作者姓名： | 杨朋 华心祝 陈登红 马菁花 |
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| 作者单位： | 安徽理工大学能源与安全学院;煤矿安全高效开采省部共建教育部重点实验室(安徽理工大学);焦作煤业(集团)有限责任公司古汉山矿 |
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| 基金项目： | 高等学校博士点专项科研基金资助(20103415110001);国家自然科学基金重点项目资助(51134012);国家自然科学基金面上项目资助(51274010) |
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| 摘 要： | 提高工作面回采上限是节约煤炭资源的重要途径之一。针对既蹬空又提高上限的工作面,回采前需研究其矿压显现规律。通过FLAC3D数值模拟能很好地分析蹬空、上提对工作面回采的影响。数值计算结果表明:蹬空上提段超前支承压力峰值较蹬空非上提段大,蹬空上提对工作面顶板下沉量的影响较蹬空非上提大。
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| 关 键 词： | 蹬空开采 上提面 矿压显现规律 |
Study on Laws of Strata Behavior on Face Floor Failure with Increased Upper Mining Limit by Umerical Simulation |
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| YANG Peng;HUA Xin-zhu;CHEN Deng-hong;MA Jing-hua. Study on Laws of Strata Behavior on Face Floor Failure with Increased Upper Mining Limit by Umerical Simulation[J]. Coal Technology, 2014, 0(8): 105-108 |
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| Authors: | YANG Peng HUA Xin-zhu CHEN Deng-hong MA Jing-hua |
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| Affiliation: | YANG Peng;HUA Xin-zhu;CHEN Deng-hong;MA Jing-hua;College of Energy and Safety ,Anhui University of Seience and Technology;Key Laboratory of Safety and High-efficiency Coal Mining Ministry of Education (Anhui University of Science and Technology);Guhanshan Coal Mine,Jiaozuo Mining Industry(Group) Limited Company; |
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| Abstract: | It's one of the important ways to save coal resources by increasing upper mining limit.For both floor failure and increased upper mining limit conditions strata behavior should be studied before face mining.The influence of them could be studied through FLAC3 Dnumerical simulation.The result shows:it's larger that abutment pressure peak on section of floor failure and increased upper mining limit than non increased section;the influence to roof subsidence of face from large to small is as follows,floor failure and increased upper mining limit section,floor failure but non increased upper mining limit section. |
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| Keywords: | floor failure ming increased upper mining limit laws of strata behavior |
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