摘要
株树桥混凝土面板堆石坝 ,最大坝高 78m。水库自蓄水始大坝即出现渗漏 ,1 999年 7月测得漏水量已达2 50 0L/s以上。经过水下彩色电视检查 ,发现大坝多块面板下部塌陷、面板折断 ,甚至形成孔洞 ,大坝防渗体系已发生严重破坏。 2 0 0 0年汛前放空水库检查 ,对大坝破坏严重的部位 ,主要是面板、接缝止水、垫层料脱空等 ,进行了处理。汛后观测渗漏量仅约 1 0L/s。
The maximum height of Zhushuqiao concrete faced rockfill dam is 78 m. The leakage emerged soon after the reservoir impoundment and in July, 1997, the measured seepage discharge reached 2 500 L/s. The underwater color television inspection discovered the cave in and breakage of a number of concrete facing slabs, at lower position even forming cavities and the seepage prevention system of the dam had been seriously damaged. Before the flood season of 2000, the reservoir was emptied to checkup and carry out treatment to the seriously damaged position, mainly referring to slabs, joint water tight, bedding materials collapse etc. After treatment, the measured seepage discharge is only 10 L/s and this demonstrates that the seepage treatment is successful.
出处
《人民长江》
北大核心
2002年第11期1-3,共3页
Yangtze River
