| 沿空留巷支护结构可靠度分析 |
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| 引用本文： | 李迎富,华心祝.沿空留巷支护结构可靠度分析[J].矿业研究与开发,2011(3):76-80,96. |
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| 作者姓名： | 李迎富 华心祝 |
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| 作者单位： | 安徽理工大学能源与安全学院; |
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| 基金项目： | 国家自然基金重点资助项目(50774001) |
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| 摘 要： | 根据沿空留巷围岩变形大且围岩力学参数具有随机性,应用工程可靠性理论,建立沿空留巷的巷帮、顶板和充填体的可靠度计算模型,得到支护结构可靠度计算公式。采用验算点法,分别计算淮南望峰岗矿512(5)工作面沿空留巷巷道煤帮、顶板与充填体的可靠度,并与目标可靠度相比,找出巷道支护薄弱环节,相应提出了增加巷道可靠度的措施。
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| 关 键 词： | 沿空留巷 支护结构 可靠度分析 围岩稳定性准则 验算点法 |
Analysis on the Reliability of Supporting Structure of Gob-side Entry Retaining |
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| LI Yingfu,HUA Xinzhu.Analysis on the Reliability of Supporting Structure of Gob-side Entry Retaining[J].Mining Research and Development,2011(3):76-80,96. |
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| Authors: | LI Yingfu HUA Xinzhu |
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| Affiliation: | LI Yingfu1,HUA Xinzhu2(School of Energy and Safety,Anhui University of Science and Technology,Huainan,Anhui 232001,China) |
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| Abstract: | In view of the large deformation of surrounding rock of gob-side entry retaining and the randomicity of mechanical parameters of surrounding rock,based on the theory of engineering structure reliability,model for reliability calculation of the sidewall and roof and packing body of gob-side entry retaining was established,and the calculation formulas of reliability of support structure were obtained.The reliability index of sidewall and roof and packing body of gob-side entry retaining in 512(5)coal mining f... |
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| Keywords: | Gob-side entry retaining Supporting structure Reliability analysis Stability criterionof surrounding rock Checking point method |
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