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| Simulation and Optimization of Anchor Bolt Support Parameters in the Return Air Tunnel of Sihou Mine |
| Zhao Jingchuan1,2 |
| 1. School of Mining, Liaoning Technical University, Fuxin 123000, China; 2. Yangcheng Sihou Coal Industry Co., Ltd., Shanxi Coal Transportation and Sales Group, Jincheng 048000, China |
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Abstract The reasonable determination of parameters such as anchor pre-stress, length, density, angle, and anchoring method restricts the safety of underground roadway support in coal mines. To ensure the safety, efficiency, and economic support of underground tunnels, the return air roadway in the second mining area of Sihou Mine was taken as an example, based on the systematic testing of various geological parameters, numerical simulation methods were used to analyze the anchor support effect of each parameter, revealing the optimal combination of various parameters during anchor support, A complete technical system for roadway anchor support had been established. The research results indicated that effective diffusion of pre-stress was the key to support design, and increasing pre-stress could appropriately reduce the length of anchor rods; The diffusion effect of anchor prestress was not obvious when the support density was excessively increased; The maximum angle of the angle anchor rod should not exceed 10°; The effect of full length anchoring and extended anchoring was worse than that of end anchoring.
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| [ 1 ] 仝太照. 煤矿巷道锚杆支护参数设计研究[ J ]. 机械管理开发，2023，38（ 6 ）：305 - 306.
[ 2 ] 赵宝宝. 不同锚杆支护参数对巷道的影响与分析[ J ]. 机械管理开发，2023，38（ 5 ）：39 - 40，43.
[ 3 ] 李 桐，左宇军，潘 超，等. 锦丰金矿深部巷道中空注浆锚杆支护参数优化研究[ J ]. 矿业研究与开发，2023，43（ 6 ）：97 - 102.
[ 4 ] 王立华. 基于FLAC3D对工作面锚杆支护参数的优选及效果对比[ J ]. 机械管理开发，2023，38（ 5 ）：149 - 150，155.
[ 5 ] 白 健. 基于数值模拟优化采空区巷道锚杆支护参数[ J ]. 机械管理开发，2023，38（ 4 ）：61 - 62，67.
[ 6 ] 卫 鹏. 丽香铁路长坪隧道锚杆支护参数优化研究[ J ]. 铁道建筑技术，2023（ 4 ）：121 - 125.
[ 7 ] 孙 鹏，张海伦. 高边坡路段预应力锚杆支护参数优化[ J ]. 交通世界，2023（ 7 ）：60 - 62.
[ 8 ] 张腾宙. 大断面切巷锚杆支护参数的研究与应用[ J ]. 煤炭与化工，2023，46（ 2 ）：30 - 32，94.
[ 9 ] 王 辉，陈庆发，张绍国，等. 铜坑矿92号矿体巷道顶板锚杆支护参数优化研究[ J ]. 采矿技术，2023，23（ 1 ）：17 - 20.
[ 10 ] 何少帅. 回采巷道锚杆支护构件及锚杆关键支护参数优化研究[ J ]. 山东煤炭科技，2022，40（ 12 ）：16 - 18，21.
[ 11 ] 郭卫卫. 望云煤矿150101运输巷锚杆支护参数优化研究与应用[ J ]. 煤，2022，31（ 10 ）：79 - 81. |
| [1] |
Cheng Lichao1,2,3, Lu Bin1, Li Xinwang1,2,3, Hao Yunde1, Long Hang1, Wang Haixuan1. Study on slurry diffusion law in goaf under different grouting pressure[J]. CCI, 2023, 46(9): 1-6. |
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