Risk Analysis of Yousha Reservoir Seepage before Gate Closure and Water Storage
CHEN Jialun
MA Chong
LIU Tianke
HUANG Guangjing
Abstract：The safety and sustainable operation of the reservoir is of great significance to the economic benefits of the surrounding areas.The study employs piezometric tests and finite element analysis methods to evaluate the seepage stability of the dam foundation and dam slopes,respectively.The results show that a total of 81 sections were inspected in the piezometric tests,with the highest permeability rate found in the horizontal toe plate hole J-2,section 2 of the bedrock,which was 2.91 Lu,meeting the anti-seepage standard of 3 Lu.The AutoBank finite element simulation software was used to calculate the dam slope stability under five possible conditions,and the safety factors under each condition met the regulatory requirements.It is concluded that under the action of seepage,the dam foundation and slopes are basically stable,and there is no risk of reservoir leakage.
Keywords：reservoir leakagepacker testfinite element simulationseepage stability
Publication Date：2026-05-20
Online Publishing Date：2026-09-16(First online date of this platform, not the publication date of the document)
Pages：5( 100-104 )