急倾斜厚煤层条带开采的煤柱稳定性实测研究  

Field Observation and Study of the Study of the Stability of Pillar in Strip Extraction of Thick Coal Seam with a Big Dip

作　　者：姜学云[1] 杜计平[1] 

机构地区：[1]中国矿业大学采矿系

出　　处：《中国矿业大学学报》1995年第1期29-35,共7页Journal of China University of Mining & Technology

摘　　要：沛城煤矿东二采区位于沛县县城中心区下方，开采单一急倾斜厚煤层。１９８９年开始用条带采煤法试采，条带采留比为２０ｍ∶２５ｍ。在试采期间，进行了长达２年的井下观测，并对观测数据进行了分析研究。试采完全成功，采出煤炭１８．６万ｔ，县城中心区地面最大下沉值８１ｍｍ，建筑物完好无损，节省了大量迁城费。Peicheng Collier’s E2 mining section,under th ecenter of Peixian County town,extracted a single thick coal seam with a big dip.As a test,strip method was employed in themining section from 1989,the width ratio of mined-out strip to pillar being 20m to 25m. Field observation lasted 2 years to study the pillar’s stability,and the observation data are analysedin this paper. The test got complete success. The maximum surface subsldence in the center of the county town was 81mm and the buildings on the ground weren’t damaged.The success ofthe test saved plenty of expenses in the movement of the county town.

关 键 词：煤矿开采 条带开采 厚煤层 采煤 煤柱 稳定性 

分 类 号：TD823.253[矿业工程—煤矿开采] TD325.1[矿业工程—矿山开采]