最优重力坝设计

The optimum design of gravity dam

从大坝的防渗结构研究为切入点 ,提出了尽可能降低重力坝坝体混凝土中的胶凝材料用量 ,避免温度裂缝的发生。通过分析已建的典型的贫碾压混凝土坝和富碾压混凝土坝的运行情况 ,提出了最优重力坝的设计构想 ,其核心内容是 :坝体混凝土只满足应力与稳定的要求 ,无需承担防渗功能 ;而大坝的防渗功能应由上游面专门设置的防渗结构来承担。即大坝的设计应体现功能分开的原则 。

This paper, based on the study on the impervious structure of the dam, puts forward it should reduce the congeal material amount in concrete gravity dam body as far as possible in order to avoid the occurrence of temperature crack. On the basis of analyzing the operation of constructed typical poor and rich RCC dam, this paper puts forward the design concepts for the optimum gravity dam. The dam body concrete only meets the requirements of stresses and stability without seepage control functions and its seepage control functions should be undertaken by the seepage control structures designed specially in the upstream dam surface. The design of dam should embody the principle of function separation.