| 下伏煤层开采对上方运输大巷的采动影响研究 |
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| 引用本文： | 孟武峰,赵忠明,吴建帮,王耕耀,杨志良. 下伏煤层开采对上方运输大巷的采动影响研究[J]. 煤炭科学技术, 2011, 39(3): 6-10 |
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| 作者姓名： | 孟武峰 赵忠明 吴建帮 王耕耀 杨志良 |
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| 作者单位： | 1. 河南理工大学能源科学与工程学院,河南焦作454000;北京三吉利能源股份有限公司郑州煤炭分公司和成煤矿,河南新密452370
2. 河南理工大学能源科学与工程学院,河南焦作,454000 |
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| 基金项目： | 河南省自然科学基金资助项目，河南省科技攻关计划项目 |
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| 摘 要： | 因下伏煤层开采对上覆煤层开采的运输大巷造成不利影响,为了确定采动影响下运输大巷的破坏范围及程度,以便制定下伏煤层开采方案的设计和大巷加固措施,采用FLAC3D软件对采后运输大巷的移动变形情况及所处位置岩层的应力分布情况进行了模拟,结合极限平衡理论与大巷围岩及其支护体的自身特点,分析了大巷变形破坏的原因。研究结果表明:21040工作面的回采不会影响大巷的稳定,21060工作面回采结束,在大巷的280—500 m段,巷道砌体受到不同程度的损坏,其中240—440 m段破坏会较为严重。大巷围岩强度较低、完整性差,巷道砌体的损坏导致其支护阻力降低以及大巷所在位置岩层应力高是导致其变形破坏较为严重的原因。
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| 关 键 词： | 运输大巷 采动影响 岩层移动 数值计算 砌体支护 |
Study on Underlying Seam Mining Affected to Upward Mine Transportation Roadway |
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| MENG Wu-feng,ZHAO Zhong-ming,WU Jian-bang,WANG Geng-yao,YANG Zhi-liang. Study on Underlying Seam Mining Affected to Upward Mine Transportation Roadway[J]. Coal Science and Technology, 2011, 39(3): 6-10 |
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| Authors: | MENG Wu-feng ZHAO Zhong-ming WU Jian-bang WANG Geng-yao YANG Zhi-liang |
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| Affiliation: | MENG Wu-feng1,2,ZHAO Zhong-ming1,WU Jian-bang1,WANG Geng-yao1,YANG Zhi-liang1(1.School of Energy Science and Engineering,Henan Polytechnic University,Jiaozuo 454000,China,2.Hecheng Ming,Zhengzhou Coal Branch,Beijing Sanjili Energy Company Ltd,.Xinmi 452370,China) |
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| Abstract: | The underlying seam mining would cause an unfavorable influence to the mine transportation roadway for the upward seam mining.In order to determine the failure scope and degree of the mine transportation roadway influenced by the underlying seam mining as well as to set up the design of the underlying seam mining plan and to set up the reinforcement measures of the mine transportation roadway,the FLAC3D software was applied to the simulation on the displacement and deformation conditions of the mine transpo... |
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| Keywords: | mine transportation roadway mining influence strata movement numerical calculation liner support |
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