| 机采高度对煤体受力影响的数值模拟 |
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| 引用本文： | 王君,刘长友,黄炳香.机采高度对煤体受力影响的数值模拟[J].能源技术与管理,2009(1). |
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| 作者姓名： | 王君 刘长友 黄炳香 |
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| 作者单位： | 中国矿业大学,矿业工程学院,煤炭资源与安全开采国家重点实验室,江苏,徐州,221008 |
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| 基金项目： | 国家自然科学基金，江苏省普通高校研究生科研创新计划项目 |
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| 摘 要： | 理论分析了顶煤的受力体系和变形破坏的演变过程,针对兴隆庄矿1308综放面的地质条件,通过数值计算,分析了机采高度改变对工作面煤体受力的影响.当机采高度增大时,煤体塑性破坏区域增大,顶煤破碎严重,同时煤壁片帮冒顶的几率增高,应增加相应的防治措施.
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| 关 键 词： | 机采高度 综放开采 数值模拟 塑性破坏 |
Numerical Simulation of Influence of Cutting Height to Coal |
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| WANG Jun,LIU Chang-you,HUANG Bing-xiang.Numerical Simulation of Influence of Cutting Height to Coal[J].Energy Technology and Management,2009(1). |
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| Authors: | WANG Jun LIU Chang-you HUANG Bing-xiang |
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| Affiliation: | State Key Laboratory of Coal Resources and Mine Safety;China University of Mining & Technology;Xuzhou;221008;China |
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| Abstract: | Theoretical analysis on stress system of top-coal and evolvement process of deformation failure,according to geological conditions of XingLongZhuang Mine 1308 work face of fully mechanized mining,the paper analyses the influence of cutting height to coal by using numerical simulation.The results indicate that when cutting height increase,the plastic failure fields augment,the top-coal break up seriously,and the odds of rib spalling and roof fall increase,so we should adopt corresponding prevention measures. |
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| Keywords: | cutting height fully mechanized sublevel caving mining numerical simulation plastic failure |
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