堤防工程短悬挂防渗研究与应用

Research on Seepage Control Hanging Wall of Dike Engineering and the Apllication

针对我国江河堤防工程普遍存在抗渗能力不足的问题,基于长江南京段堤基地层特征进行了悬挂式防渗墙防渗模型试验。得到了悬挂式防渗墙不能充分消减堤防渗流的渗漏量,但是能够显著提高堤防的临界表观水力梯度的重要结论。根据本文研究工作,结合长江南京段若干区段进行的悬挂式防渗墙防渗加固的应用情况,讨论了悬挂式防渗墙推广应用的若干问题。

In view of the river embankment seepage widespread problem of inadequate capacity and based on characteristics of Yangtze River Nanjing dike,the type of hanging wall seepage control modeling test was carried out.The hanging wall control can not remarkably reduce the leakage,but can significantly improve the critical apparent hydraulic gradient.According to this study,combined with a number of sections Yangtze River dike in Nanjing to the suspended application of reinforcement of seepage control hanging wall,series of application problems is put into discussion.