基于GIS的信息融合型含水层富水性评价方法——富水性指数法

Water-richness evaluation method of water-filled aquifer based on the principle of information fusion with GIS:Water-richness index method

为了查明矿井充水含水层富水性分布规律,以平朔井工一矿4煤顶板含水层为例,在分析确定影响含水层富水性主控因素基础上,充分挖掘矿井基础地质资料,采集各主控因素数据信息,应用地理信息系统(GIS)建立各自专题层图,并对多源地质信息进行复合叠加处理,运用非线性(如人工神经网络等)或线性(如层次分析法等)信息融合方法,确定影响含水层富水性的各主控因素"权重"系数,建立基于GIS的信息融合型的含水层富水性分布规律评价模型,计算确定富水性指数,最终实现对充水含水层富水性评价,提出其分区划分方案。

In order to identify the distribution of the water-richness in water-filled mine aquifer,the aquifers overlying the No.4 coal seam in Pingshuo No.1 underground Coal Mine was studied.After establishing the main controlling factors,the GIS was used to establish the thematic map layers on the basis of making the best of geological data and collecting the information of each main factors,and to stack the multi-source of geological information.Then,the ＂weight＂ coefficients of each main factors impacting the water-richness of aquifer were established using the non-linear（such as artificial neural networks,etc.）or linear（e.g.AHP Method,etc.）information fusion methods.According to the use of GIS,the evaluation model of the water-richness distribution was established.Then,the water-richness index was calculated.Finally,the distribution of the aquifer water-richness overlying the No.4 coal seam was put forward and the water-richness evaluation was accomplished.