大板水库渗流性态综合评价  

Comprehensive Evaluation of Seepage Properties of Daban Reservoir

作　　者：孙一文 段祥宝[1] 施以恒 李景娟[1] SUN Yi-wen;DUAN Xiang-bao;SHI Yi-heng;LI Jing-juan(Hydraulic Engineering Department,Nanjing Hydraulic Research Institue,Nanjing 210098,China;College of Water Conservancy and Hydropower Engineering,Hohai University,Nanjing 210098,China;Huoshan Water Resources Bureau,Liuan 237200,China)

机构地区：[1]南京水利科学研究院水工水力学研究所,江苏南京210098 [2]河海大学水利水电学院,江苏南京210098 [3]霍山县水利局,安徽六安237200

出　　处：《水电能源科学》2022年第7期102-105,共4页Water Resources and Power

基　　金：中央级公益性科研院所基本科研专项(Y119008)。

摘　　要：针对大板水库2020年汛期出现的渗流险情,在综合分析地质勘探资料和除险加固施工质量的基础上,结合大坝渗流安全监测资料分析、高密度电法隐患探测、渗流反演分析及预测分析得到的结论,论证了大坝渗流安全性态。结果表明,大坝防渗体系不健全,防渗体渗透系数不满足规范要求,防渗墙存在施工质量问题,且与溢洪道挡土墙连接处存在接触渗漏隐患,汛期暴露出渗流安全隐患,未来高水位下渗流不安全,需及时进行防渗加固处理以确保大坝安全。The Daban Reservoir occurred a dangerous seepage in the 2020 flood season. This article first comprehensively analyzed the geological exploration data of the reservoir and the quality of the reinforcement construction. Then combined with the conclusions of dam seepage safety monitoring data analysis, high-density electrical method hidden danger detection, seepage inversion analysis and prediction analysis, the dam seepage safety behavior was demonstrated. The results show that the anti-seepage system of the dam is not sound, and the permeability coefficient of the anti-seepage body does not meet the specification requirements. The impermeable wall has construction quality problems, and there is a hidden danger of contact and leakage at the connection with the spillway retaining wall. During the flood season, potential seepage safety hazards are exposed. In the future, seepage under high water levels is unsafe, and anti-seepage reinforcement needs to be carried out in time to ensure the safety of the dam.

关 键 词：监测资料 反演分析 渗透稳定 高密度电法 

分 类 号：TV641.25[水利工程—水利水电工程]