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[1]李英明,贾安立,马念杰.煤巷顶板岩层赋存特征及块体梁顶板稳定性分析[J].中国安全生产科学技术,2014,10(6):51-57.[doi:10.11731/j.issn.1673-193x.2014.06.008]
　LI Ying ming,JIA An li,MA Nian jie.Analysis on occurrence characteristics of roof strata in coal roadway and stability of blocks rock beam roof[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2014,10(6):51-57.[doi:10.11731/j.issn.1673-193x.2014.06.008]
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煤巷顶板岩层赋存特征及块体梁顶板稳定性分析()
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《中国安全生产科学技术》[ISSN:1673-193X/CN:11-5335/TB]

卷:
10
期数:
2014年6期
页码:
51-57
栏目:
学术论著
出版日期:
2014-06-30

文章信息/Info

Title:
Analysis on occurrence characteristics of roof strata in coal roadway and stability of blocks rock beam roof
作者:
李英明1; 2; 贾安立3; 马念杰4
1 安徽理工大学 矿业工程博士后科研流动站， 安徽 淮南 232001；2安徽理工大学 煤矿安全高效开采省部共建教育部重点实验室， 安徽 淮南 232001；3河南煤化集团赵固一矿， 河南 新乡 453634；4中国矿业大学<北京>资源与安全工程学院, 北京 100083
Author(s):
LI Yingming1; 2;  JIA Anli3;  MA Nianjie4
1.Mineral Engineering post doctoral Scientific research mobile station Anhui University of Science and Technology,Huainan Anhui 232001,China；2.The MOE Key Laboratory of Coalmine Safety and High Efficiency Mining, Anhui University of Science and Technology,Huainan Anhui 232001,China;3.Zhaogu No.1 Coal Mine，Henan Coal Chemical Industry Group Co.Ltd.,Xinxiang Henan 453634,China;4.School of Resources and Safety Engineering,China University of Mining and Technology(Beijing),Beijing 100083,China
关键词:
巷道顶板; 煤层; 弱面; 稳定性; 数值模拟
Keywords:
roadway roof;  coal seam;  weak plane;  stability;  numerical simulation
分类号:
X936
DOI:
10.11731/j.issn.1673-193x.2014.06.008
文献标志码:
A
摘要:
通过煤系地层露头的现场考察研究，揭示了煤巷顶板岩层基本赋存特征，采用数值模拟研究了规则块状赋存顶板稳定性，进而分析总结了煤巷顶板岩层力学结构形式及其稳定性，并对葛泉矿一条轨道巷大青灰岩顶板进行了探测分析及支护应用。结果表明：煤巷顶板具有层状赋存、受节理裂隙面切割成为不同尺度的块体两个显著特征；规则块状赋存顶板易于形成相互铰接的多块体平衡岩梁结构，属于易于稳定岩层，其中弱面间距与岩层悬露跨度相近情况下，弱面位于巷道跨中位置，岩层和巷道围岩整体的稳定性最差，位于帮角时次之；当弱面间距远小于岩层悬露尺寸时，影响相对较小，岩层和巷道围岩整体比较易于稳定。
Abstract:
Based on spot investigation of coalbearing sequences crop, the occurrence characteristics of roof strata in coal roadway were revealed, and the stability of regular blocks occurrence roof was studied by numerical simulation. Then the mechanics structure and stability of roof strata were analyzed. The detection analysis and support application were conducted on bluegrey strata roof of a track tunnel in Gequan mine. The results showed that the roof strata in coal roadway have two basic occurrence characteristics: terrain occurrence and different scale of block cut by cleat or fracture. Regular blocks occurrence roof is easy to form multiple blocks balanced beam, which belongs to stable strata. The stability of strata and surrounding rock with weak plane on the middle of roadway is worst when the distance between weak planes is close to strata span. When the distance between weak planes is far less than strata span, the strata and surrounding rock is easy to be stable.

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备注/Memo

备注/Memo:
国家自然科学基金项目(51004002);中国博士后科学基金项目（2013M541812);高等学校博士学科点专项科研基金项目（20123415120006）
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