摘要
针对调节水位对橡胶坝坝基渗流的影响,以滹沱河橡胶坝为例,采用有限元法对坝基渗流进行了三维模拟研究,利用等参六面体单元精确模拟了坝区各地层和水平铺盖的空间分布及不同工况下坝基的渗流场分布规律,并分析计算了调节上游水位和降低下游水位的水头分布、单宽渗漏量及渗透坡降对坝基渗流场的影响。结果表明,该坝基满足调节上游水位时的防渗要求。
According to the influence of water level regulation on the dam foundation seepage of rubber dam,taking Hutuo River rubber dam for an example,finite element method is adopted to simulate three-dimensional seepage of the dam foundation.The isoperimetric hexahedron elements are applied to simulate space distribution of each stratum and horizontal blanket of dam area and the seepage field distribution of dam foundation under different working conditions.And then the influence of upstream and downstream water level distribution regulation,the unit-width discharge and the seepage slope on the foundation seepage field are analyzed.The results show that the dam foundation meets seepage control requirements when regulating upstream water level.
出处
《水电能源科学》
北大核心
2012年第2期78-80,共3页
Water Resources and Power
关键词
三维渗流模型
水平铺盖
水位
坝基
渗流稳定
橡胶坝
three-dimensional seepage model
horizontal blanket
water level
dam foundation
seepage stability
rubber dam
