【摘要】 本文以断裂力学理论为基础,应用有限元法探讨了预应力对空腹重力坝踵裂缝尖端应力强度因子的影响,提出了预应力加固技术可以弥补空腹重力坝缺点的解决方案,对设计预应力加固空腹重力坝有一定的参考价值。更多还原

【Abstract】 The Paper discusses the influence of prestress to nose stress streng th factor in spandrel gravity dam heel fissure with finite element method on the basis of fracture mechanics theory, puts forward solving scheme of spandrel gra vity dam shortcoming with prestressed consolidation technology.更多还原