稳定温度场对混凝土坝底孔应力的影响

以白石水库泄水排沙底孔为例，采用三维有限元法，按不考虑温度荷载和考虑温度荷载两种情况对泄水排沙底孔进行应力分析，探索在各种变温边界条件下温度荷载对底孔应力的影响规律，为底孔结构设计和温度控制及防裂措施提供依据，对其它类似工程也有参考应用价值。

Effects of Steady Temperature Field on Bottom Outlets of Concrete Dams

Three dimensional FEM is adopted in the stress analysis of Baishi dam bottom outlets in the cases where temperature load is considered and where temperature load is not considered.The regularity of effects of the temperature load on the stress of bottom outlets is studied as well.The study provides a basis for temperature control and crack prevention.The results of the study may be used as a reference for other similar projects with bottom outlets.