Research on the causes of leakage in a reservoir dam and the effect of rehabilitation
Taking Yangquan reservoir rehabilitation project in Changning city,Hunan province as an ex-ample,the current situation and causes of leakage in the reservoir dam are analyzed and treatment by curtain grouting is proposed.As well,model is established to analyze dam seepage and slope stability af-ter rehabilitation.Results show that after rehabilitation,both seepage and slope safety can meet safety standards.Curtain grouting has effectively reduced the hydraulic gradient behind the dam,ensuring the safe operation of the dam body.The measures and related analysis methods adopted in this project can provide reference for the treatment of similar small and medium-sized reservoirs.