五图双系数法在北辛窑煤矿底板突水评价中的应用  

Application of five figure double coefficient method in water burst evaluation of Beixinyao Mine floor

作　　者：王宗明[1] 来永伟[2] 段俭君[1] 

机构地区：[1]中国煤炭地质总局第三水文地质队,河北邯郸056006 [2]中国煤炭地质总局第一地质勘探局勘查院,河北邯郸056004

出　　处：《煤炭与化工》2016年第5期7-12,17,共7页Coal and Chemical Industry

摘　　要：北辛窑煤矿处于矿井建设阶段,目前,在+1 040 m水平南翼回风大巷掘进时发生底板突水现象,最大涌水量达455 m3/h。该位置经过突水系数法评价结果为安全区,说明单一的突水系数法在该矿部分地段评价并不准确。在充分分析区域及井田水文地质条件的基础上,通过分析底板破坏深度、底板保护层厚度、水头分布及有效保护层厚度等影响底板突水的因素,用五图双系数法对底板奥灰水进行突水评价分区,其预测结果为可以煤矿防治水工作提供依据。Beixinyao Mine is in construction, there is floor water burst in ＋1 040 mlevel south wing return air roadway mining, the maximum water inflow reaches 455 m3/h, the position is considered as safe area by water burst coefficient method, which shows the method alone is not precise enough to evaluate the geological condition. Based on the sufficient analysis of coalfield geological condition, by analyzing the factors affecting floor water burst like inrush floor damage depth,bottom layer thickness, water distribution and effective protective thickness, etc, five figure double coefficient method is applied to evaluate the floor Ordovician limestone, the prediction result provides reference for water prevention and control.

关 键 词：五图双系数法 突水系数法 突水评价 北辛窑煤矿 

分 类 号：TD745[矿业工程—矿井通风与安全]