青草沙水库东堤圆弧段防渗墙有限元分析

Finite Element Analysis and Optimization Design for Arc-shaped Cut-off Wall in Qingcaosha Reservoir Eastern Embankment

为确保上海市青草沙水库东堤圆弧段防渗墙在双向水头作用下安全运行,克服圆弧段防渗墙在反拱作用的不利影响,根据初拟设计方案,利用有限元软件,建立三维东堤圆弧段有限元模型,对双向水头作用下的东堤圆弧段进行了数值模拟研究,并对防渗墙结构进行了优化研究,为工程实践提供了必要的理论依据。

In order to ensure the safe operation for the arc-shaped cut-off wall in Shanghai Qingeaosha reservoir eastern embankment under two-way head, to overcome the adverse effects of the anti-arching, according to the proposed design, with the help of FEN software, the finite element model for three dimensional arc-shaped cut-off wall was established. And the numerical simulation analysis for the arc-shaped section under two-way head was carried out, combined with engineering experience, the cut-off wall structure has been optimized, provides the necessary theoretical basis for engineering practice.