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| 中兴矿近距离煤层上覆岩层移动规律研究 | |
| 引用本文： | 蔡光顺,左建平,李毅,闫万俊,李生亚,于洋.中兴矿近距离煤层上覆岩层移动规律研究[J].矿业工程研究,2010,25(2). |
| 作者姓名： | 蔡光顺 左建平 李毅 闫万俊 李生亚 于洋 |
| 作者单位： | 1. 中国矿业大学(北京)力学与建筑工程学院,北京,100083;汾西矿业中兴煤业公司,山西,交城,046204 2. 中国矿业大学(北京)力学与建筑工程学院,北京,100083 3. 汾西矿业中兴煤业公司,山西,交城,046204 |
| 基金项目： | 国家自然科学基金重大项目，国家重点基础研究发展计划(973计划)，教育部新世纪优秀人才支持计划，霍英东教育基金会资助，北京市优秀人才培养资助项目，中央高校基本科研业务费资助项目联合资助 |
| 摘 要： | 应用新型多点位移计,以中兴矿3211工作面为现场,监测了近距离煤层顶板近20m范围内覆岩移动规律.通过现场监测获得了大量覆岩移动数据和同孔不同深度覆岩相对沉降变化量,以及同一深度不同孔岩层的相对沉降量.通过对监测数据的分析,得到了中兴矿周期性跨落步距.综合运用组合岩梁理论和关键层理论等对顶板岩层"三带"进行了划分,获得中兴矿的跨落高度大约为采高的2-4倍,这为中兴矿近距离条件下巷道布置及支护技术提供了依据. |
| 关 键 词： | 近距离煤层 多点位移计 覆岩移动 垮落步距 "三带"划分 |
Movement rules of overburden strata in Zhongxing close coal mine |
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| CAI Guangshun,ZUO Jianping,LI Yi,YAN Wangjun,LI Shengya,YU Yang.Movement rules of overburden strata in Zhongxing close coal mine[J].Mineral Engineeering Reseach,2010,25(2). | |
| Authors: | CAI Guangshun ZUO Jianping LI Yi YAN Wangjun LI Shengya YU Yang |
| Affiliation: | CAI Guangshun1,2,ZUO Jianping1,LI Yi2,YAN Wangjun2,LI Shengya2,YU Yang1 (1.School of Mechanics and Civil Engineering,China University of Mining & Technology (Beijing),Beijing 100083,China,2.Zhongxing Coal Mining Branch,Fenxi Group,Jiaocheng,046204,China) |
| Abstract: | With the increasing depth of coal mining,it is of great significance to study the movement rules of deep crack overburden strata.In this paper,new multi-point displacement equipment has been applied to 3211 working face in Zhongxing Coal Mine.And the strata movement law within the 20 meters around the roof has been obtained in detail.A large number of strata movement data through in-situ monitoring has been obtained,such as relative subsidence displacement of different position in the same hole and differen... |
| Keywords: | close coal seam multi-point displacement equipment overburden movement periodic falling span three bands |
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