节点文献

中兴矿近距离煤层上覆岩层移动规律研究

Movement rules of overburden strata in Zhongxing close coal mine

  • 推荐 CAJ下载
  • PDF下载
  • 不支持迅雷等下载工具,请取消加速工具后下载。

【作者】 蔡光顺左建平李毅闫万俊李生亚于洋

【Author】 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)

【机构】 中国矿业大学(北京)力学与建筑工程学院汾西矿业中兴煤业公司

【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.

【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 different hole in the same depth,respectively.Through the analysis of monitoring data,periodic falling span for Zhongxing Coal Mine has been obtained.Based on the combination rock beam theory and key strata theory,the "three zones" has been divided for Zhongxing Coal Mine.And it indicates that the height of falling strata is approximately 2~4 times than the thickness of coal stratum.The research can help to optimize the tunnel layout and support technology for close coal seam.

【基金】 国家自然科学基金重大项目(50834005);国家重点基础研究发展计划(973计划)(2010CB732002);教育部新世纪优秀人才支持计划(NCET-10-0726);霍英东教育基金会资助(121051);北京市优秀人才培养资助项目(2009D013001000037);中央高校基本科研业务费资助项目联合资助
  • 【文献出处】 矿业工程研究 ,Mineral Engineering Research , 编辑部邮箱 ,2010年02期
  • 【分类号】TD325
  • 【被引频次】16
  • 【下载频次】215
节点文献中: 

本文链接的文献网络图示:

本文的引文网络