水化学成分聚类法判别咸阳路站浅层地下水水力联系的应用

Application of Hydrochemical Constituents Clustering Method on Determination of Hydraulic Connection of Shallow Groundwater at Xianyanglu Station

应用模糊聚类分析法,借助场地不同深度水样的水化学成分数据,对天津地铁2号线咸阳路站场地含水层内部各层地下水水力联系进行判别。分析结果将场地的地下水分为三类,其中#2,#3,#4水样取样深度的地下水联系较紧密,#1和#5水样取水层与#2,#3,#4水样的水力联系则相对较弱。它与现场抽水试验所得到的地下水分类结果一致,这为该场地的水文地质条件评价提供一定的理论依据。

With fuzzy clustering analysis and in virtue of the hydrochemical constituents data of water samples in different depths in the field, the hydraulic connection of the groundwater at each layer inside the aquifer in the field of Xianyanglu Station at the Tianjin Metro Line 2 is determined. The result divides the groundwater inthe field into three categories, wherein the groundwater in the sampling depths of the water sample #2, #3, #4 has close hydraulic connections, and the water sampling strata of the water sample #1, #5 has relatively weak hydraulic connection with the water sample #2, #3, #4. The result is in consistent with the categories of groundwater obtained from on-site pumping test, offering certain theoretical basis to assessment of the hydrogeologic conditions in the field.