等壳碾压混凝土重力坝渗流场三维有限元分析

Three-dimensional finite element analysis for the seepage field of RCC gravity dam

解决渗流问题是碾压混凝土重力坝技术发展的关键。本文利用三维有限单元法和改进的排水孔幕技术,对等壳碾压混凝土重力坝进行了精细分析。分析表明:采用三级配的坝体结构防渗能满足设计要求,该防渗形式结合其后排水孔幕,为大坝的渗流控制安全提供了有力的保证。

Solving the seepage problem is the key issue for the development of roller compacted concrete gravity dam technology. This paper analyses the roller compacted concrete gravity dam in detail, with three-dimensional finite element method and improved drainage holes screen technology, it showed that the use of the dam structure with three impermeable to meet the design requirements, the form of combination of anti-seepage curtain subsequent drainage holes for seepage control to provide a strong security guarantee for dam safety.