五图-双系数三级判别法在紫金煤矿底板突水评价中的应用  

Application of five-diagram-double-coefficient three-level discriminant method in the evaluation of water burst at the bottom of Zijin Mine

作　　者：穆金霞[1] Mu Jinxia(The First Hydrogeological Team of China Coal Geological Administration,Handan 056004,China)

机构地区：[1]中国煤炭地质总局第一水文地质队,河北邯郸056004

出　　处：《煤炭与化工》2021年第7期48-51,共4页Coal and Chemical Industry

摘　　要：为准确预测煤层底板突水的危险性,以紫金煤矿为例,在充分分析区域及井田水文地质条件的基础上,通过分析15号煤层底板破坏深度、保护层厚度、水头分布及有效保护层厚度等影响因素,采用“五图-双系数三级判别法”对15号煤层底板奥灰水突水危险性进行了分区评价,防范底板突水事故发生。In order to accurately predict the risk of water breakout at the bottom of coal seams,the"five diagrams-two coefficients three-stage discrimination method"was used to evaluate the risk of water breakout at the bottom of coal seam No.15 coal seam by analyzing the depth of damage,the thickness of the protective layer,the distribution of head and the thickness of the effective protective layer based on the hydrogeological conditions of the region and the coal field.The risk of bursting water in the bottom plate of No.15 coal seam was evaluated by zoning to prevent the occurrence of bursting water at the floor.

关 键 词：五图—双系数三级判别法 底板突水 分区评价 

分 类 号：TD74[矿业工程—矿井通风与安全]