摘要
落马坞山塘采取套井和帷幕灌浆防渗加固后坝脚渗漏量仍较大,为查明大坝渗漏原因,引入并行电法技术对山塘隐患进行探测.根据视电阻率成果可知,大坝左坝段存在明显低阻异常区,表明左岸岩体破碎及其接触带填筑质量较差是造成大坝渗漏的主要原因,河床段及右坝肩防渗效果较好,涵管不存在渗漏问题,最后建议对该渗漏薄弱区采用针对性防渗处理.
There is a large amount of seepage at the dam base of Luomawu Pond after casing wells and grouting anti-seepage treatment. In order to ascertain the current hidden causes of dam seepage , the technology of parallel electrical method is in-troduced. According to the results of apparent resistivity, there is obvious low resistivity anomaly area at the left dam se c-tion. The results show that the rock mass crush in the left bank and the poor quality of filling contact zone are the main rea-sons of dam seepage. It is also shown that the riverbed section and the seepage-proofing effect in dam abutment is good, and there is no seepage in the culvert pipe. Finally, based on the causes of seepage, some practical targeted treatments are given.
作者
徐国成
许小杰
姜国宏
XU Guo-cheng XU Xiao- jie JIANG Guo-hong(Huanshan Agricultural Public Service Center, Fuyang District, Hangzhou, Fuyang 311408 , China Zhejiang Institute of Hydraulics and Estuary, Hangzhou 310020 , China Wanshi Integrated Service Center, Fuyang District, Hangzhou, Fuyang 311406 , China)
出处
《浙江水利水电学院学报》
2017年第2期68-70,共3页
Journal of Zhejiang University of Water Resources and Electric Power
基金
水利部技术示范项目(SF-201725)
关键词
山塘
渗漏隐患
并行电法
大坝
pond
leakage hidden trouble
parallel electrical method
dam
