摘要
通过分析空腹重力坝的优缺点,以断裂力学理论为基础,应用有限单元法探讨了预应力大小对空腹重力坝坝踵裂缝尖端应力强度因子的影响。预应力加固技术可以很好地弥补空腹重力坝所存在的缺陷,对设计空腹重力坝有一定的参考价值。
By analysis strongpoint and defect of the Gravity Hollow Dam, on the base of the fracture mechanics, the effect of the prestressed value to the dam heel stress intensity factor of the Gravity Hollow Dam by the finite element method, that is studied and seek after the prestress-reinforced measure that can make up its defect. There is some certain reference to the gravity hollow dam applying prestressed technic.
出处
《水力发电》
北大核心
2005年第12期42-44,共3页
Water Power
关键词
预应力
断裂力学
应力强度因子
空腹重力坝
prestress
fracture mechanics
stress intensity factor
gravity hollow dam
