朱家峁煤矿3#煤层导水裂缝带发育高度分析研究  

Research and Analysis of Development Height of Water-conducting Fracture Zone of No.3 Coal Seam in Zhujiamao Colliery

作　　者：张振宾 Zhang Zhenbin(Shanxi Zhongtai Energy Investment Co.,Ltd.,Yulin,Shanxi,719109)

机构地区：[1]陕西中太能源投资有限公司,陕西榆林719109

出　　处：《江西煤炭科技》2024年第2期99-101,105,共4页Jiangxi Coal Science & Technology

摘　　要：根据朱家峁煤矿三盘区煤层赋存条件及工作面巷道布置与开采状况,为研究3#煤层开采后覆岩导水裂缝带发育高度及形态规律,在理论分析与详细探测设计基础上,采用钻孔分段注水测漏法对3301综采面采后覆岩导水裂缝带高度进行了现场探测。通过系统资料整理与分析,得到了该条件下的两带高度实测资料,3301综采面观测站处导水裂缝带最大高度为55.4m,为采厚的19.8倍。建议在后续矿井突水危险性评价时,采用本次实测裂采比20倍作为依据。According to the coal seam occurrence conditions and roadway layout and mining status of working face in No.3 Panel of Zhujiamao Colliery,the field detection of the height of water-conducting fracture zone of overlying rock after coal mining at 3301 fully mechanized mining face is carried out by using the method of leakage detection with borehole separated injection on the basis of theoretical analysis and detailed detection design,whose results show that the maximum height of the water-conducting fracture zone at the observation station on surface 3301 is 55.4m,which is 19.8 times of the mining thickness;and 20 times of the measured fracture production ratio should be used as the basis for the subsequent assessment of the mine water inrush risk.

关 键 词：导水裂缝带 钻孔分段注水测漏法 裂采比 

分 类 号：TD745.2[矿业工程—矿井通风与安全]