| 沿空留巷巷旁充填墙体合理尺寸优化研究 |
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| 引用本文： | 贾建功,侯昌盛,刘辉,孟翠翠.沿空留巷巷旁充填墙体合理尺寸优化研究[J].毕节学院学报,2011,29(4):124-128. |
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| 作者姓名： | 贾建功 侯昌盛 刘辉 孟翠翠 |
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| 作者单位： | 山东科技大学资源与环境工程学院; |
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| 摘 要： | 沿空留巷实现了无煤柱开采,是煤矿生产中的重大技术改革。整体浇注巷旁充填技术是我国近年来研究和应用的先进巷旁支护技术。为了保持正常生产,就必须保证巷旁充填墙体稳定性。应用现场观测法,根据沿空留巷围岩应力随工作面推进的变化规律,研究了下区段煤体应力变化规律以及充填墙体稳定性。运用FLAC-3D数值模拟软件,模拟了4种不同宽度时的充填墙体稳定性,研究表明,墙体宽度大于或等于2m时,巷道围岩塑性区范围明显减小,支护效果较好。
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| 关 键 词： | 沿空留巷 充填墙体 数值模拟 塑性区 |
Study on the Reasonable Dimension Optimization of Filling Wall in Gob Roadway |
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| JIA Jian-gong,HOU Chang-sheng,LIU Hui,MENG Chui-chui.Study on the Reasonable Dimension Optimization of Filling Wall in Gob Roadway[J].Journal of Bijie University,2011,29(4):124-128. |
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| Authors: | JIA Jian-gong HOU Chang-sheng LIU Hui MENG Chui-chui |
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| Institution: | JIA Jian-gong,HOU Chang-sheng,LIU Hui,MENG Chui-chui(School of Resources and Environmental Engineering,Shandong University of Science and Technology,Qingdao,Shandong 266510,China) |
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| Abstract: | Gob roadway achieved mining without pillar,which is a major technological reform.The wholly casting fill technology is an advanced supportting technology which is widely researched and applicated in china recently.In order to maintain normal production,we must ensure the stability of the filling wall.Applying the observation method,based on the changing law between the stress in wall rock and the distance of face,we have studyed the changing law of the stress in the next sublevel coal body and the stablilit... |
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| Keywords: | Gob Roadway Filling Wall Numerical Simulation Plastic Zone |
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