基于“有效隔水层厚度”的奥灰突水性分区评价研究——以姚家山井田9(8+9)号煤层为例  

Zoning Evaluation of Water Inrush in Ordovician Limestone Based on“Effective Water-resisting Layer Thickness”:Taking the No.9(8+9)Coal Seam in Yaojiashan Mine Field as an Example

作　　者：王斌峰 李瑞娜 尹冰一 吴晗 WANG Binfeng;LI Ruina;YIN Bingyi;WU Han(Shanxi Mineral Resources Survey and Monitoring Center,Taiyuan 030024,China)

机构地区：[1]山西省矿产资源调查监测中心,太原030024

出　　处：《山西煤炭》2024年第4期106-112,共7页Shanxi Coal

摘　　要：合理进行奥灰突水性评价分区,对矿井建设规划具有重要意义。本文在传统突水性评价模型的基础上,结合工作实际,提出了基于“有效隔水层厚度”的奥灰突水评价模型和新的分区标准。以姚家山井田9(8+9)号煤层作为研究案例,利用两种模型分别编绘了突水系数等值线图,并进行对比分区评价,分析了两种评价模型在突水分区上的有效性。结果表明,新的评价模型中的“有效隔水层厚度”更能客观代表对奥陶系地下水起实际阻隔作用的隔水层厚度,评价结果更能反映煤层开采受底板水的威胁程度,有利于煤炭资源集约开发利用,对井田开发建设、矿井防治水有一定的指导意义。Reasonable zoning evaluation of water inrush in Ordovician limestone is significant for mine construction planning.Based on the traditional water inrush evaluation model,this paper proposes an Ordovician limestone water inrush evaluation model and a new zoning standard based on the“effective water-resisting layer thickness”in conjunction with practical work.Taking the No.9(8+9)coal seam in Yaojiashan Coal Mine as a case,contour maps of water inrush coefficients were compiled based on two models,and comparative zoning evaluations were conducted to analyze the effectiveness of the two zoning evaluation models in water inrush.The results show that the“effective water-resisting layer thickness”in the new model can more objectively represent the thickness of the layer that blocks the Ordovician groundwater.The evaluation results can better reflect the degree of threat from floor water in coal seam mining,which is conducive to the intensive development and utilization of coal resources and has guiding significance for the development and construction of coal mines and the prevention and control of mine water.

关 键 词：突水系数 有效隔水层厚度 对比分析 

分 类 号：TD745[矿业工程—矿井通风与安全]