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| 长壁工作面顶板周期下沉量的理论分析与实测研究 | |
| 引用本文： | 刘江,任艳芳,齐庆新. 长壁工作面顶板周期下沉量的理论分析与实测研究[J]. 辽宁工程技术大学学报(自然科学版), 2010, 29(6) |
| 作者姓名： | 刘江 任艳芳 齐庆新 |
| 作者单位： | 1. 煤炭科学研究总院,开采设计研究分院,北京,100013 2. 煤炭科学研究总院,开采设计研究分院,北京,100013;天地科技股份有限公司开采设计事业部,北京,100013 3. 煤炭科学研究总院,科技发展部,北京,100013 |
| 基金项目： | 国家自然科学基金资助项目(50774046);国家自然科学基金重点资助项目(50434020) |
| 摘 要： | 为了研究长壁工作面顶板周期下沉量对支架支撑高度的影响,本文以某长壁工作面为背景,利用数值模拟和理论分析方法,通过分析长壁工作面上覆岩层运动规律,对浅埋深长壁工作面顶板破坏特征进行研究,并对顶板所成结构形式进行了探讨,分析了顶板周期下沉量对支架支撑高度的影响,最后通过现场实测数据对所得结论进行了验证。研究结果表明,顶板最大周期下沉量对于确定工作面采高及支架最小可缩量具有重要意义。本文的研究结论对浅埋深长壁工作面顶板结构形式也提出了新的探讨。 |
| 关 键 词： | 浅埋煤层 顶板结构 运动规律 顶板下沉 |
Theoretical analysis and experimental study on the cycle subsidence of roof in long wall face |
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| LIU Jiang,REN Yanfang,QI Qingxin. Theoretical analysis and experimental study on the cycle subsidence of roof in long wall face[J]. Journal of Liaoning Technical University (Natural Science Edition), 2010, 29(6) | |
| Authors: | LIU Jiang REN Yanfang QI Qingxin |
| Affiliation: | LIU Jiang 1,REN Yanfang1,3,QI Qingxin2(1.Coal Mining & Design Branch,China Coal Research Institute,Beijing 100013,China,2.Department of Science & Technology Development,China) |
| Abstract: | In order to understand the movement characteristics and the structure of roof at longwall face,the deformation characteristics and the structure of roof at longwall face were investigated using numerical simulation and theoretical analysis.The results show that the bearing structure in the overburden strata can still be formed under a shallow buried depth and the structure can protect the support.The conclusion was verified through the observation data.The paper presents the new findings for the roof struct... |
| Keywords: | shallow coal seam roof structure movement laws roof subsidence |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |