马鹿塘二期面板堆石坝水下检查及处理  

Underwater Inspection and Treatment of Face Rockfill Dam in Phase II Project of Malutang Hydropower Station

作　　者：杜雪珍[1] 朱锦杰[1] 邢林生[1] 赵磊 

机构地区：[1]国家电力监管委员会大坝安全监察中心,浙江杭州310014 [2]云南大唐国际文山水电开发有限公司,云南文山663600

出　　处：《水力发电》2013年第12期36-38,共3页Water Power

摘　　要：马鹿塘水电站二期工程大坝渗流量与库水位呈明显正相关,较国内已建面板堆石坝偏大,且在库水位为623.20m时坝脚出现11个渗水点,因此进行了水下检查及渗漏处理。通过渗流量监测资料分析及与其他工程对比分析,得到大坝渗流量大部分来自周边缝渗水,周边缝经铜止水焊补置换、回填粉煤灰后,面板和趾板组成的防渗体系防渗效果明显增强,表明处理方案是成功、可行的。The seepage of face rockfill dam in Phase Ⅱ Project of Malutang Hydropower Station is positively correlated with reservoir water level, and is larger than other domestic in-operation face rockfill dams. When the reservoir level is 623.20 m, the seepage appears in 11 positions at the bottom of dam, so the underwater inspection and treatment are applied. Based on the monitoring data of seepage and comparing with other projects, it is concluded that the seepage is mainly come from peripheral joints. By welding or replacing the copper seal of peripheral joint and backfilling with fly ash, the seepage control system of face slabs and toe slabs is improved. This shows that the treatment scheme is successful and feasible.

关 键 词：面板堆石坝 渗流量 水下检查 处理方案 马鹿塘二期工程 

分 类 号：TV698[水利工程—水利水电工程]