近距离煤层采动上部旺采区煤柱稳定性实测研究  

A research on coal pillar stability in the upper Wangeviry gob area in contiguous coal seams

作　　者：贺安民 朱卫兵[2] 刘文涛[2] 

机构地区：[1]神华集团神东煤炭有限责任公司,陕西省神木县719315 [2]中国矿业大学煤炭资源与安全开采国家重点实验室,江苏省徐州市221008

出　　处：《中国煤炭》2009年第10期44-46,55,共4页China Coal

摘　　要：通过补连塔煤矿32301工作面的地表沉陷与矿压显现实测,就2-2煤层开采后上部1-2煤旺采区遗留煤柱的稳定性进行了研究。结果表明:上部1-2煤层旺采区煤柱对应的地面下沉远小于老采空区域,工作面矿压显现正常,说明下部2-2煤层采后上部1-2煤旺采区遗留煤柱没有失稳。研究成果为神东矿区类似条件下的安全开采提供了参考。Based on actual tests of the surface subsidence and strata behaviors of the # 32301 face in Bulianta Coal Mine, a study is carried out on the stability of the coal pillars left over in the upper 1-2 Wangeviry gob area after the 2-2 coal seam is mined out. Results show that the surface subsidence corresponding to upper 1-2 coal seam Wangviry gob area is much better compared with the surface subsidence corresponding to the old gob area and the strata behaviors of the face seem to be normal. This indicates that after the lower 2-2 coal seam is mined out, coal pillars left over in the upper 1-2 coal seam do not lose their stability. This research results provide sound reference for improved work safety in coal mining under the similar conditions in Shendong coal mine areas.

关 键 词：旺格维利采煤法 煤柱稳定性 地表沉陷 关键层 

分 类 号：TD823.81[矿业工程—煤矿开采]