| 复杂条件煤巷掘进顶板控制数值模拟及应用 |
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| 引用本文： | 魏敬喜,华心祝,李迎富.复杂条件煤巷掘进顶板控制数值模拟及应用[J].淮南工业学院学报,2010(3):23-28. |
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| 作者姓名： | 魏敬喜 华心祝 李迎富 |
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| 作者单位： | 安徽理工大学能源与安全学院,安徽淮南232001 |
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| 摘 要： | 为了解决刘庄煤矿大断面煤巷复合破碎顶板稳定性难于控制,制约快速掘进,影响安全施工和巷道维护这一重大工程问题,运用FLAC3D数值模拟分析,对巷道断面和支护进行优化设计,提出人造拱形断面及滞后迎头一段距离的弱化支护技术,实现了最高月掘进1 510m的好成绩,为煤巷快速掘进顶板控制提供了保障。
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| 关 键 词： | 复合破碎顶板 大断面 人造拱形断面 滞后支护 顶板控制 |
Numerical Simulation Research on Roof Control of Roadway in Excavation under Complex Conditions and Its Application |
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| WEI Jing-xi,HUA Xin-zhu,LI Ying-fu.Numerical Simulation Research on Roof Control of Roadway in Excavation under Complex Conditions and Its Application[J].Journal of Huainan Institute of Technology(Natural Science),2010(3):23-28. |
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| Authors: | WEI Jing-xi HUA Xin-zhu LI Ying-fu |
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| Affiliation: | (School of Energy and Safety,Anhui University of Science and Technology,Huainan Anhui 232001,China) |
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| Abstract: | In order to solve the difficult engineering problems of compound broken roof control of roadway in coal seam with large cross-section,limiting fast excavation and safe construction and roadway maintenance,optimal design of roadway cross-section and its support was performed by using FLAC3D numerical simulation.Technology of man-made arch cross-section with delayed support at some distance from roadway heading face was proposed.With the technology a good effect of 1510 meters of excavation development in one month was achieved.The technology provides guarantee for roof control in fast excavation of roadway. |
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| Keywords: | compound broken roof large cross-section man-made arch cross-section delayed support roof control |
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