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

In order to ensure the safe operation for the arc-shaped cut-off wall in Shanghai Qingcaosha 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 FEM 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.