应用环境同位素和模糊聚类方法研究堤防渗漏

利用环境同位素方法对某堤防几个典型段进行渗漏分析,查明了其地下水的渗漏来源,结果表明江都船厂段T1号孔、小菜谭段T23号孔、联盟庄码头T29号孔中的地下水为河水补给来源,T5号孔附近的黑鱼塘水为当地降雨或近期降雨形成的地下水补给,万寿宫段T7号孔中的地下水为河水和当地降雨的混合.应用模糊聚类方法,选取环境同位素和水化学值作为指标特征值,并赋予不同的权重,进行模糊聚类分析,分析结果与环境同位素、水化学定性分析的结论一致.

Application of environmental isotope and fuzzy clustering method to study of seepage from dykes

The groundwater seepage from several typical sections of a dyke was analyzed by use of the environmental isotope method, and the seepage sources were ascertained. The result shows that the groundwater from the borehole No.1 at Jiangdu dockyard, the borehole No.23 at Xiaocaitan section and the borehole No.29 at Lianmengzhuang dock comes from rivers,that the water of Heiyutang around the borehole No.5 is recharged by the local and late precipitation, and that the groundwater from the borehole No.7 at Wanshougong section comes from the mixture of river water and local precipitation. The fuzzy clustering analysis was performed by use of the fuzzy clustering method, in which the environmental isotope and values of hydrochemistry were taken as index characteristic values and endued with different weights. The analysis result accords with that of the environmental isotope and hydrochemistry method.