摘要
针对北江大堤工程堤坝渗漏原因,对采集的22个水样进行聚类分析和稳定同位素分析。结果表明,T9孔北5 m处涌水、T12孔和T9孔北排水沟出水与江水的聚类距离最近,即四者间的稳定同位素δD、δ18O、Cl-及TDS差异小。因此,该四组样品为江水补给,其余样本为当地降水补给;环境同位素分析结果与聚类分析结论吻合,验证了聚类分析法在堤坝渗漏分析中行之有效。
Taking the case of Beijiang Dyke as an example, twenty-two water samples were collected for system cluster and stable isotope analysis. The result shows that the water samples of water gushing at 5m north to T9 borehole, T12 borehole and out-waters of drainage gallery north to T9 borehole are similar to the river water. In other words, they are great similar in values of δD, δ^18O, Cl^- concentration and TDS. So, 5m north to T9 borehole, T12 borehole and out-waters of drainage gallery north to T9 borehole are recharged by river water and others are recharged by rainfall. Stable isotope analysis shows the same result.
出处
《水电能源科学》
北大核心
2009年第5期52-54,共3页
Water Resources and Power
基金
国家自然科学基金资助项目(50579017)
