【摘要】 渗流分析与控制对高心墙堆石坝工程安全至关重要。双江口水电站心墙堆石坝最大坝高314 m,地下厂房洞室群规模巨大,工程厂坝区的水文地质条件复杂。采用4种有限元法进行渗流计算分析和渗流控制方案研究,反演得到天然渗流场边界水位和材料渗透参数,建立4套有限元计算模型,计算分析运行期不同方案下渗流场分布、渗透坡降和渗流量,研究渗流控制方案的可行性和合理性,为双江口水电站工程安全运行奠定了基础。更多还原

【Abstract】 The seepage analysis and control is critical to safety of the high rockfilled dam with core. The maximum dam height,Shuangjiangkou Hydropower Project,is 314 m. The underground powerhouse cavern group is huge in scale. The hydrological and geological conditions in both dam and plant areas are complicated. Four finite element methods are applied to compute and analyze seepage flow and study the seepage control schemes. The boundary water level of the natural seepage field and the permeable parameters of materials are obtained through inversion. Four models for computation by the finite element methods are built to compute and analyze seepage field distribution,seepage gradient and seepage flow under different schemes as well as study the feasibility and rationality of the schemes for the seepage control. These lay sound foundation for the safety operation of Shuangjiangkou Hydropower Project.更多还原