某大坝右岸渗水来源和季节性存在分析

Analysis on Source and Seasonal Existing of Water Seepage in the Right Bank of a Dam

某大坝右岸岸坡在运行期出现少量季节性渗水,渗水量在初期逐步增大,近几年渗水量整体稳定。为给工程后期修补处理提供参考意见,对季节性渗水的来源进行了区分。通过水质分析数据中各组分含量的对比,以及地下水位分布的进一步分析,判断渗水来自库水绕渗。结合当地气温条件和当地冻土的冻融规律,分析得出了渗水季节性出现是受冻土影响。

A certain amounl of seasonal water seepage appears on the right bank of a dam in operation period. The amount of seepage gradually increases in the early operation and is in a stable state in recent years. In order to provide a reference for the repair, the main source of seasonal water seepage is analyzed. By comparing the components of water quality and analyzing ground water level, the reservoir water is concluded as the main source of water seepage. Based on local meteorological conditions and local freezing and thawing rules, the analysis believes that the seasonal water seepage is related with the local seasonal frozen soil.