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近年来,我国建造的几个大型混凝土坝差不多都遇到了基础断层破碎带处理和施工应力问题。关于基础断层破碎带的处理问题,一般是按楔形梁理论考虑和设计的。关于在施工过程中引起的坝体应力恶化问题,不少工程都采取了在上游坝面浇筑大量压重混凝土的措施,以改善坝踵应力。兹就这两个问题提出一些个人看法,就正于读者。
In recent years, several large-scale concrete dams constructed in our country have almost encountered the problems of the treatment and construction stress of the basic fault fracture zone. On the basic fault rupture zone processing problems, generally according to wedge beam theory to consider and design. On the problem of deterioration of the dam body caused by the construction process, many projects have taken measures to pour a large amount of compressive concrete on the upstream dam surface to improve the dam heel stress. I hereby put forward some personal views on these two issues, just as the readers.