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2015年南水北调来水调入密云水库调蓄工程利用京密引水渠进行反向试运行供水,在试运行阶段,发现怀柔水库~雁栖泵站段部分渠道外坡脚存在渗水情况。针对该问题,充分论证了防渗墙防渗工程实施对处理渗水隐患的有效性:结合施工工艺、技术方法和实际监测结果,发现防渗墙处理措施减少了对渠道周边环境的影响,保证了南水北调来水调入密云水库调蓄工程反向供水的工程安全。研究成果可以为同类型渠堤渗水隐患处理工程提供良好借鉴。
In 2015, the South-to-North Water Diversion Project was transferred to the Miyun Reservoir Regulation Project to use the Jingmi Drainage Channel to conduct reverse commissioning operation. During the trial operation, some water seepage at the outer channels of Huairou ~ Yanqi Pumping Station sections was found. In view of this problem, it is fully demonstrated that the impermeable wall anti-seepage project is effective in treating seepage hazards. Combining with the construction technology, technical methods and actual monitoring results, it is found that the anti-seepage wall measures reduce the impact on the surrounding environment of the channel and ensure Project safety of transferring water from South-North Water Diversion Project to water supply of Miyun Reservoir Regulation Project. The research results can provide a good reference for the same type of embankment seepage hazard treatment project.