多煤层重复采动导水裂隙带高度观测技术研究  

Technological study on height observation of water flowing fractured zone caused by repeated mining in multiple coal seam

作　　者：王振荣[1] 赵立钦 康健[1] 贾林刚 WANG Zhen-rong;ZHAO Li-qin;KANG Jian;JIA Lin-gang(Shenhua Shendong Coal Group,Shenmu 719315,China;Mine Safety Technology Branch of China Coal Research Institute,Beijing 100013,China;State Key Laboratory of Coal Mining and Clean Utilization ( China Coal Research Institute),Beijing 100013,China)

机构地区：[1]神华神东煤炭集团有限公司,陕西神木719315 [2]煤炭科学技术研究院有限公司安全分院,北京100013 [3]煤炭资源高效开采与洁净利用国家重点实验室(煤炭科学研究总院),北京100013

出　　处：《煤炭工程》2018年第12期82-85,共4页Coal Engineering

基　　金：国家自然科学基金(51404139;51674142)

摘　　要：为准确观测多煤层重复采动导水裂隙带发育高度,分析了现有的两带高度观测常用方法,由此提出了多煤层重复采动条件下导水裂隙带高度的观测方法,并将其应用于布尔台煤矿22105工作面及42106工作面导水裂隙带高度的观测,得出多煤层重复采动条件下42106工作面导水裂隙带高度为158. 52m,裂采比为24. 02。而由经验公式计算得出,多煤层重复采动条件下42106工作面导水裂隙带高度为131. 44m,裂采比为19. 92,这与实际观测结果基本吻合,验证了实测结果的准确性。In order to accurately observe the height of the water flowing fractured zone in multiple coal seams,the existing two-zone height observation method is analyzed,and the observation method is proposed for the water flowing fractured zone height under repeated mining in multiple coal seam. It is applied to 22105 working face in a coal mine and 42106 working face in Buertai Coal Mine. It is concluded that the height of the water flowing fractured zone of the 42106 working face is 155. 22m and the crack -production ratio is 24. 02. According to the empirical formula,the height of the water flowing fractured zone of the 42106 working face under multi-coal repeated mining conditions is 131. 44m,and the crackproduction ratio is 19. 92,which is basically consistent with the actual observation results,and the accuracy of the measured results is verified.

关 键 词：多煤层 重复采动 导水裂隙带 彩色钻孔电视 

分 类 号：TD325.4[矿业工程—矿井建设] P631[天文地球—地质矿产勘探]