| 回采巷道锚杆支护可靠性设计数值模拟研究 |
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| 引用本文： | 张大明.回采巷道锚杆支护可靠性设计数值模拟研究[J].微计算机信息,2011(10). |
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| 作者姓名： | 张大明 |
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| 作者单位： | 辽宁工程技术大学资源与环境工程学院; |
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| 基金项目： | 项目申请人:张大明;项目名称:回采巷道锚杆支护设计可靠度系统研究;基金颁发部门:辽宁工程技术大学校优秀青年科学研究基金(09252) |
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| 摘 要： | 针对回采巷道的围岩特点,采用岩梁理论对回采巷道进行了力学研究与分析。当岩梁自重和沿应力引起的拱座处水平推力不足以阻止剪切滑动力时,顶板将发生整体剪切滑动,当锚固体的强度不足以抵抗最大水平应力,则发生压缩破坏。采用RFPA软件对五虎山煤矿的回采巷道进行数值模拟实验,确定了安全经济的支护方案,结果表明改变角锚杆安装角可以提高回采巷道顶板的抗剪能力。
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| 关 键 词： | 回采巷道 锚杆支护 可靠性 数值模拟 |
Study on Reliability Design of Bolting Support Winning Roadway by Numerical Simulation |
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| ZHANG DA-ming.Study on Reliability Design of Bolting Support Winning Roadway by Numerical Simulation[J].Control & Automation,2011(10). |
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| Authors: | ZHANG DA-ming |
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| Affiliation: | ZHANG DA-ming(College of Resource and Environment Engineering,Liaoning Technical University,Fuxin 123000,China) |
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| Abstract: | In view of wall rock's characteristics of winning roadway,the author adopt rock beam mechanics theory to the winning roadway for research and analysis.When the rock beam gravity and the level stress at arch not enough to prevent shear sliding force,the overall shear sliding will be occured to roof.When the anchorage body strength is not enough to resist the maximum horizontal stress,the compression failure will be occurred to roof.The author carry on numerical simulated experiments by RFPA sofeware for winn... |
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| Keywords: | winning roadway bolting support reliability numerical simulation |
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