基于FAHP-GRA评价方法的顶板承压含水层富水性预测研究

Prediction of Water Abundance of the Roof Confined Aquifer Strata Based on FAHP-GRA Evaluation Method

煤层顶板承压水作为直接突(冲)水源,对煤层开采的安全进行至关重要,准确评价采矿区含水地层的富水性尤为重要。针对现有方法对煤层顶板承压水含水层富水性预测方面存在的问题,研究了多个对富水性产生影响的因素,结合各单影响因素指标量化归一并进行分区。并利用FAHP-GRA,以转龙湾矿区为例,提出了一种富水性综合分析的预测评价方法。

The confined water at coal seam roof,as direct source of water inrush,is very important for the safety of coal mining.It is particularly important to accurately evaluate the water abundance of water-bearing strata in mining area.In view of the existing problems in prediction of water bearing capacity of the coal seam roof by the current method,the factors that influence the water bearing capacity are studied.Meanwhile,the factors are quantified,normalized and zoned according to the index of each single factor.By using FAHP-GRA and taking the Longwan mining area as a case,a kind of prediction and evaluation method for comprehensive analysis of water abundance is put forward.