彬长矿区回采工作面涌水差异性分析  

Analysis on water inflow difference of working face in Binchang mining area

作　　者：武谋达 原德胜 张联队 WU Mouda;YUAN Desheng;ZHANG Liandui(Shaanxi Binchang Mining Group Co.,Ltd.,Xianyang 712000,China)

机构地区：[1]陕西彬长矿业集团有限公司,陕西咸阳712000

出　　处：《陕西煤炭》2021年第S01期42-46,共5页Shaanxi Coal

摘　　要：针对彬长矿区顶板水害问题,以区内生产矿井已回采工作面顶板涌水观测数据为依据,从矿井间涌水形式差异、面间涌水差异和单面涌水差异等3个方面,分析了回采工作面涌水的影响因素及产生差异的原因。含水层厚度、煤与含水层之间距离及地层特征等条件是造成大佛寺煤矿与其他矿井涌水形式巨大差异的主要因素,而含水层厚度及其富水性在其中起到了关键作用。在特定的地下水补径排条件下,不同的布置方式、开采顺序对工作面涌水的影响较大,单一“稳定型”出水工作面的涌水量与推采距离或采空区面积之间具有一定规律性。分析成果对探索防治水工作由过程治理向源头预防、由局部治理向区域治理转变具有现实意义。Aiming at the problem of roof water disaster in Binchang mining area,based on the observation data of roof water inrush in the working face of the production mine in the mining area,the influencing factors of water inrush and the causes of the difference in the working face are analyzed from three aspects,namely,the difference of water inrush form between mines,the difference of water inrush between working faces and the difference of water inrush in one working face.The analysis shows that the thickness of aquifer,the distance between coal and aquifer,and the strata characteristics are the main factors that cause the great difference of water inflow form between Dafosi mine and other mines,in which the thickness of aquifer and its water abundance play a key role.Under the specific condition of groundwater recharge and drainage,different layout and mining sequence have great influence on the water inflow of working face,and there is a certain regularity between the water inflow of single“stable”water outflow working face and the mining distance or goaf area.The analysis results have practical significance for the transformation of water control work from process control to source control,and from local control to regional control.

关 键 词：彬长矿区 回采工作面 涌水量 差异 影响因素 

分 类 号：P64[天文地球—地质矿产勘探] TD745[天文地球—地质学]