摘要
Abstract
Taking a pumped storage power station project as an example,a three-dimensional finite element calculation model was established to analyze the variation patterns of the underground seepage field,drainage system seepage flow,and powerhouse seepage flow under normal operation,25％failure,50％failure,and 75％failure of the underground drainage system.The study explores the influence mechanism of the underground drainage system on the groundwater level near the powerhouse and the powerhouse seepage flow.The results indicate that the underground drainage system can effectively control the distribution of the seepage field near the powerhouse.When the drainage system operates normally,the groundwater level near the powerhouse forms a drawdown funnel,the groundwater overflow point in the powerhouse cavern is low,and the seepage flow is minimal.As the degree of drainage hole failure increases,the groundwater level near the powerhouse and the overflow point in the cavern rise,leading to an increase in powerhouse seepage flow,which adversely affects powerhouse operation.关键词
抽水蓄能电站/三维数值模拟/地下洞室群/排水系统/失效分析Key words
Pumped storage power station/three-dimensional numerical simulation/underground cavern group/drainage system/failure analysis分类
建筑与水利
