Seepage Analysis of Xishiluotou Auxiliary Dam in Miyun Reservoir
DU Yufeng
ZHAO Hongguo
ZHAO Xu
ZHANG Chunge
Abstract：The Xishiluotuo auxiliary dam is one of the water retaining structures of Miyun Reservoir,the safety of the project is very important.However,the stability of the impervious clayey limestone dam foundation at the north saddle is extremely poor,and the treatment is not thorough.There are significant safety risks of seepage during high-water operation periods.Strengthening dam safety monitoring and data analysis is of great significance for timely detection and handling of safety hazards to ensure the safe operation of the dam.Through methods such as process line analysis,investigation analysis,correlation analysis,permeation slope drop analysis,and potential analysis,it was discovered that the infiltration gradient and potential had increased.It is judged that unfavorable changes in dam foundation seepage had occurred,with section 0+175.9m at Nanyakou being particularly severe;there were safety risks in terms of seepage and anti-slip stability at Beiyakou.
Keywords：Miyun ReservoirXishiluotuo Auxiliary Dammarl dam foundationhigh water levelseepage analysis
Publication Date：2026-01-20
Online Publishing Date：2026-03-13(First online date of this platform, not the publication date of the document)
Pages：8( 108-115 )