摘要
分析了大坝坝体、坝基的渗漏原因,采用二维稳定渗流有限元法计算了坝体的渗流安全性,结果表明坝体、坝基存在渗流安全隐患。针对具体隐患部位,提出对坝体心墙部分采用冲抓套井加高心墙、开挖回填接高心墙、劈裂灌浆及对坝基部分采用帷幕灌浆、对输水涵管采用原涵管内套钢管等加固方案。通过加固后的渗流安全性分析,该措施可有效解决漕河水库的渗流及渗透稳定问题。
Based on analysis on seepage reasons of the dam and the dam foundation, calculating seepage safety of the darn using two-dimension finite element method, the results show that the dam and foundation have seepage security risks. In view of existing situation, the appropriate measures have been taken to deal with the seepage problem, such as heightening the core through washing and catching the wall, excavation backfill then heightening the core, splitting grou- ting, curtain grouting in the foundation and using the original sets covering steel tube inside reinforcement for the culvert pipe, and so on. Through the analysis on seepage security after the reinforcement, these measures will reduce the Caohe reservoir seepage and infiltration and improve stability of Caohe reservoir.
出处
《水电能源科学》
北大核心
2009年第4期58-60,53,共4页
Water Resources and Power
关键词
大坝
坝基
渗流
渗流安全
二维稳定渗流有限元法
加固
dam
dam foundation
seepage
seepage safety
two-dimension stable seepage finite element method
reinforcement
