| 护巷煤柱宽度与回采巷道支护的数值模拟研究 |
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| 引用本文： | 陈蓥,张宏伟,张哲,刘军,韩军.护巷煤柱宽度与回采巷道支护的数值模拟研究[J].矿业安全与环保,2011,38(5). |
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| 作者姓名： | 陈蓥 张宏伟 张哲 刘军 韩军 |
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| 作者单位： | 1. 辽宁工程技术大学资源与环境工程学院,辽宁阜新,123000
2. 煤炭科学研究总院沈阳研究院,辽宁沈阳,110031 |
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| 摘 要： | 基于铁法晓明矿N2709综采工作面煤层赋存条件,采用FLAC2D数值模拟分析了区段护巷煤柱宽度为3,5,8,12,15,17,20,25 m条件下煤柱支承压力分布情况和巷道围岩变形破坏特点,确定工作面护巷窄煤柱合理宽度为3 m,并对该窄煤柱进行了回采巷道锚网索联合支护设计。通过现场矿压观测,证明了锚网索联合支护效果较好,不仅保证了巷道的安全稳定,而且提高了煤炭采出率。
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| 关 键 词： | 窄煤柱 数值模拟 回采巷道 锚网索支护 |
Numerical Simulation Research on Chain Pillar Width and Mining Roadway Support Technology |
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| CHEN Ying,ZHANG Hong-wei,ZHANG Zhe,et al.Numerical Simulation Research on Chain Pillar Width and Mining Roadway Support Technology[J].Mining Safety & Environmental Protection,2011,38(5). |
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| Authors: | CHEN Ying ZHANG Hong-wei ZHANG Zhe |
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| Affiliation: | CHEN Ying,ZHANG Hong-wei,ZHANG Zhe,et al |
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| Abstract: | The bearing pressure distribution of coal pillar and the failure features of the roadway surrounding rock under the condition that the width of the sublevel chain pillar was respectively 3,5,8,12,15,17,20 and 25m were analyzed with FLAC2D numerical simulation according to the seam occurrence condition in No.2709 fully mechanized coal face in Xiaoming Mine of Tiefa Coal Mining Area,the reasonable width of the narrow chain pillar of the face was determined as 3m,and the combined support using bolt,mesh and an... |
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