| 魏家地煤矿运输大巷返修支护效果的FLAC模拟分析 |
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| 引用本文： | 任建喜,徐小兵,党超,奚家米,张琨,陈新年,张引合.魏家地煤矿运输大巷返修支护效果的FLAC模拟分析[J].煤炭工程,2012(1):89-91,95. |
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| 作者姓名： | 任建喜 徐小兵 党超 奚家米 张琨 陈新年 张引合 |
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| 作者单位： | 西安科技大学建筑与土木工程学院,陕西西安,710054 |
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| 基金项目： | 高等学校博士学科点专项科研基金 |
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| 摘 要： | 以魏家地煤矿运输大巷返修试验段工程为依托,应用FLAC3D数值模拟软件建立与实际支护设计相一致的计算模型,并结合现场监测结果进行分析,得到在"锚网喷+锚注"一次支护基础上进行留设柔垫层让压联合支护方案适应三软煤层变形特征。现场试验表明:返修支护方案是可行的,保证了运输大巷围岩的稳定,满足了魏家地煤矿安全生产的需要。
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| 关 键 词： | 运输大巷 返修支护 FLAC3D 现场监测 留设柔垫层让压联合支护技术 |
Analysis on FLAC Simulation of Repair and Support Effect in Weijiadi Mine Transportation Roadway |
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| REN Jian-xi
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XU Xiao-bing
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DANG Chao
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XI Jia-mi
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ZHANG Kun
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CHEN Xin-nian
,
ZHNAG Yin-he.Analysis on FLAC Simulation of Repair and Support Effect in Weijiadi Mine Transportation Roadway[J].Coal Engineering,2012(1):89-91,95. |
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| Authors: | REN Jian-xi XU Xiao-bing DANG Chao XI Jia-mi ZHANG Kun CHEN Xin-nian ZHNAG Yin-he |
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| Affiliation: | REN Jian-xi,XU Xiao-bing,DANG Chao,XI Jia-mi,ZHANG Kun,CHEN Xin-nian,ZHNAG Yin-he(School of Architecture and Civil Engineering,Xi’an University of Science and Technology,Xi’an 710054,China) |
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| Abstract: | Base on the repair and test section project of the mine transportation roadway in Weijiadi Mine as the background,the FLAC3D numerical simulation software was applied to establish a calculation model same to the actual support design.An analysis was conducted on the site monitoring and measuring results.Base on the primary support of the "bolt/steel mesh/shotcreting +bolt/grouting",a left flexible cushion yielding combined support plan was obtained and was suitable for the deformation features of the seam with soft roof,soft coal and soft floor.The site test showed that the repair plan was feasible,could ensure the stability of the surrounding rock in the mine transportation roadway and could meet the requirements o the safety production in Weijiadi Mine. |
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| Keywords: | transportation roadway repair and support FLAC3D site monitoring and measuring left flexible cushion yielding combined support technology |
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