北江大堤石角堤段渗漏探测分析

Study on leakage of Shijiao section of Beijiang river dyke

从北江大堤石角段的地质环境条件出发 ,根据同位素示踪和天然示踪 (包括水文地球化学条件 )的实际资料综合分析论证了石角段的基岩渗漏 ,认为石角段历年发生的渗透变形主要源于基岩集中渗漏通道 ,并通过连通试验证实。目前存在两条集中渗漏通道 ,并仍处于进一步的发展过程中。

According to the synthesis information of geological environment condition and the data determined by isotope tracer and natural tracer analysis that include hydrogeochemistry condition of Beijiang river dyke leakage, the reason of leakage and infiltration distortion of the dyke in the past years is the existence of some concentrated seepage passageways in the rock. Tracer communicating test by borehole identifies there are two seepage passageways existed in the rock and they are developing further.