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目前我国高土心墙堆石坝的设计思想是在总结小浪底这类筑坝经验的基础上建立的,只有200 m级以下的资料可供参考,为此采用数值分析方法对居于心墙坝世界前列的深厚覆盖层300 m级高土心墙堆石坝进行进一步研究,探讨了心墙堆石坝填筑与蓄水的全过程,并分析了坝体、心墙的应力与变形特征。计算结果表明,300 m级高土质心墙堆石坝变形、应力均在可接受的范围内,理论上是可行的。
At present, the design idea of the earth core rockfill dam in our country is established on the basis of summing up the experiences of such dam construction in Xiaolangdi. Only the data below 200 m can be used for reference. For this purpose, In the foreground, the 300 m high core earth core rockfill dam with deep overburden is further studied. The whole process of filling and storing of core rockfill dam is discussed, and the stress and deformation characteristics of the dam body and the heart wall are analyzed. The calculation results show that the deformation and stress of the 300 m high earth core rockfill dam are within the acceptable range and are theoretically feasible.