水电站调压室底部喉管与压力隧洞相连接,组成一个垂直岔管,在结构上超了出一般岔管的范围,无法参照规范中有关规定进行结构设计。本文采用有限元法研究了某大型水电站调压室和压力隧洞相连接部位钢板衬砌的应力分布情况,为垂直岔管的设计提供了必要的依据。 The bottom of the surge chamber of the hydropower station is connected with the pressure tunnel to form a vertical bifurcation, which exceeds the scope of the general bifurcation in the structure and can not be designed with reference to the relevant provisions in the code. In this paper, the finite element method is used to study the stress distribution of the steel lining in the connecting part of the pressure chamber and the pressure tunnel of a large hydropower station, which provides the necessary basis for the design of the vertical bifurcation pipe.