白皎煤矿2410底板道高构造应力软岩巷道支护
High Tectonic Stress Soft Rock Tunnel Supporting in 2410 Floor Roadway of Baijiao Coal Mine
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摘要: 针对白胶煤矿2410底板道运输巷围岩变形严重、支护难度大的问题;依据“高预应力强力支护”理论;采用FLAC3D数值模拟分析2种不同支护设计方案;模拟结果表明,两帮和顶底板移近量分别较少360 mm和240 mm,由此确定2410底板道运输巷支护方案;通过现场试验应用效果分析,试验结果表明,顶底板移近量和两帮收敛量最大值分别是26 mm和21 mm;锚杆、锚索支护范围的围岩稳定、变形量较小;巷道支护效果良好。Abstract: For support difficult problems and serious deformation in 2410 floor transport roadway in Baijiao Coal Mine, according to the theory of “high pre-stressed force supporting”, FLAC3D numerical simulation is used to analyze two different support design projects. The simulation results show that the deformation value of two walls and roof and floor is less than 360 mm and 240 mm respectively; we determine 2410 floor transport roadway support project, through field application test and supporting effect inspection; the test results show that the maximum values of roof and floor deformation as well as the two walls are 26 mm and 21 mm respectively; surrounding rock in the supporting range of bolt and anchor is stability, the deformation is small and roadway support effect is good.
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[1] 刘泉声,高玮,袁亮.煤矿深部岩巷稳定性控制理论与支护技术及应用[M].北京:科学出版社,2010. [2] 刘爱卿,张剑,程蓬,等.复合顶板酥软煤层支护技术[[J].煤矿安全,2015,46(4):87-89. [3] 郜进海,镐振,吕兆恒,等.软煤层巷道支护数值模拟研究[J].河南理工大学学报,2012,31(6):664-668. [4] 曹晨明,吴拥政.高预应力强力支护系统及其在潞安矿区的应用[J].煤炭科学技术,2008,36(11):26-29. [5] 解子文.高预应力强力支护系统在王坡煤矿的应用[J].煤矿开采,2010,15(4):71-72. [6] 吴间亭.深部巷道变形、破坏过程及其稳定控制技术研究[J].矿业安全与环保,2011,38(4):38-41. [7] 孟庆彬,韩立军,张帆舸,等.深部高应力软岩巷道耦合支护效应研究及应用[J].岩石力学,2017,38(5):1-14. [8] 张成军,吴拥政,褚晓伟.应力异常区软弱顶板巷道全锚索支护技术[J].煤炭科学技术,2012,40(6):8-11. -
期刊类型引用(1)
1. 陶恩生. 不同围压下煤岩力学三轴试验研究. 煤矿现代化. 2024(05): 14-19 . 百度学术
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