| 典型留巷顶板条件下巷旁充填体支护阻力分析 |
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| 引用本文： | 阚甲广,张农,李宝玉,司光耀.典型留巷顶板条件下巷旁充填体支护阻力分析[J].岩土力学,2011,32(9):2778-2784. |
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| 作者姓名： | 阚甲广 张农 李宝玉 司光耀 |
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| 作者单位： | 1. 中国矿业大学 矿业工程学院 煤炭资源与安全开采国家重点实验室，江苏 徐州 221116； 2. 淮南矿业（集团）有限责任公司，深部煤炭开采与环境保护国家重点实验室，安徽 淮南 232001 |
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| 基金项目： | 国家重点基础研究发展计划资助(No.2011CB201200); 江苏高校优势学科建设工程资助项目; 中央高校基本科研业务费专项资金(No.2010QNA29); 煤炭资源与安全开采国家重点实验室(中国矿业大学)自主研究课题(No.SKLCRSM09X03) |
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| 摘 要： | 将工程实践中接触到的留巷顶板分为厚层直接顶、薄层直接顶和无直接顶3种类型，利用叠加连续层板模型，考虑巷帮煤体承载作用和导致顶板垮落诱因，得出了3种顶板条件下的巷旁支护阻力计算公式。研究表明，巷帮煤体、充填区域顶板承载性能的提高有助于降低巷旁充填体支护阻力。随直接顶厚度的减小，充填体支护阻力反而增大。基本顶层位不同，顶板垮落诱因不同。厚层直接顶时，顶板垮落为自重引起；薄层直接顶时，顶板垮落为基本顶上位岩层作用所致
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| 关 键 词： | 沿空留巷 顶板结构 巷旁充填体 支护阻力 |
| 收稿时间： | 2011-03-31 |
Analysis of supporting resistance of backfilling wall for gob-side entry retaining under typical roof conditions |
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| KAN Jia-guang,ZHANG Nong,LI Bao-yu,SI Guang-yao.Analysis of supporting resistance of backfilling wall for gob-side entry retaining under typical roof conditions[J].Rock and Soil Mechanics,2011,32(9):2778-2784. |
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| Authors: | KAN Jia-guang ZHANG Nong LI Bao-yu SI Guang-yao |
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| Institution: | 1. School of Mining, State Key Laboratory of Coal Resources and Safe Mining, China University of Mining and Technology, Xuzhou, Jiangsu 221116, China; 2. State Key Laboratory of Deep Coal Mining & Environment Protection, Huainan Mining Industry(Group) Co., Ltd., Huainan, Anhui 232001, China |
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| Abstract: | The common field gob-side entry retaining roofs are divided into three types,i.e.thick immediate roof,thin immediate roof and without immediate roof.Through utilizing the continuous laminate model and considering the factors of the support effect of the coal side in the roadway,the incentives of roof caving,etc.,the calculation formulas of roadside support resistance under three kinds of roof conditions are obtained.According to the formulas,the increase bearing ability of coal side and the roof of filling ... |
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| Keywords: | gob-side entry retaining roof structure backfilling wall support resistance |
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