层次分析法在煤层底板突水评价中的应用研究

Application Research on Analytic Hierarchy Process in the Evaluation of Water Inrush in Coal Seam Floor

煤层底板突水对煤矿安全生产造成了严重的影响。为了评价高阳煤矿9#煤层在生产过程中底板突水的危险性,以层次分析法为计算模型,选取含水层压力、有效水层等效厚度、隔水层岩层位置及厚度、断层分布、陷落柱分布作为影响因子的评价指标,并计算其权重值,借助地理信息系统(GIS)对影响因子进行制图,对不同区域的突水情况进行评价。结合突水点及钻孔区域水文地质条件,证实了层次分析法评价结果的准确性。

In order to evaluate the danger of floor water inrush from No.9 coal seam during in Gaoyang Colliery,the paper makes an evaluation of the water inrush situation in different regions through the Analytic Hierarchy Process(AHP),in which the evaluation indicators of the influencing factors are selected,including the pressure of the aquifer,the equivalent thickness of the effective aquifer,the position and thickness of the impermeable layer,the distribution of faults,and the distribution of collapse columns with their weight values calculated and the accuracy of the Analytic Hierarchy Process evaluation results confirmed through mapping the influencing factors by virtue of Geographic Information System(GIS)according to the hydrogeological conditions of the water inrush points and drilling areas.