近距煤层开采覆岩导水裂隙带高度观测研究  

Observational Research on the Height of Water Flowing Fractured Zone in Repeated Mining of Short-Distance Coal Seams

作　　者：栾元重[1] 李静涛[1] 班训海[2] 桑春阳 张长琦[2] 马德鹏[2] 

机构地区：[1]山东科技大学测绘科学与工程学院,山东青岛266510 [2]微山崔庄煤矿有限责任公司,山东微山277600

出　　处：《采矿与安全工程学报》2010年第1期139-142,共4页Journal of Mining & Safety Engineering

基　　金：山东省自然科学基金项目(ZR2009EM002)

摘　　要：为了提高崔庄煤矿近第四系松散层条件下33上01,33下01工作面的开采上限,在确保安全生产的前提下,采用井下打仰上孔测漏水量方法、经验公式预计和数值模拟方法,开展了单独开采3上煤与3上,3下两层煤全采后上覆岩层导水裂隙带高度的研究工作.实测单独开采3上煤与3上,3下两层煤全采后上覆岩层导水裂隙带高度为59.59 m和66.0 m;经验公式预计两值为47.1 m和50.8 m;数值模拟计算两值为53.21 m和62.3 m.将实测数据与经验公式预计及数值模拟结果进行了对比分析,仅采3上煤与3上,3下煤全采,上覆岩层冒落带高变化不大,导水裂隙带高增加不超过10 m,研究表明本次实测的结果可靠.In exploitating coal seam No.33 under the condition of quaternary loose layer in Cuizhuang coal mine,in order to improve the mining upper limit of the working faces of both upper-01 and lower-01 seams,we studied the height of water flowing fractured zone of the overburden strata.The result shows that the height is 59.65 m when the upper-3 coal seam is exploited alone and is 66.0 m when the upper-3 and lower-2 coal seams have been completely exploited.These two values become 47.1 m and 50.8 m according to th...

关 键 词：裂隙带高度 数值模拟 覆岩破坏 

分 类 号：TD823.83[矿业工程—煤矿开采]