本文主要论述那岸水电站混合型大头坝设计中有关的几个主要方面问题,如坝型评述、剖面设计、稳定计算和应力分析等。文中指出:该坝型具有比较明显的经济性,对具有一定坝高,且具备一定自然条件的地、县级工程有推广应用价值。论述剖面设计时要顾及坝的结构特点和当地的施工条件。探讨了坝体由两种不同弹模材料所组成时其应力的分析方法,提出了按弹模比进行面积折算的概念。该坝建成运行至今已有四年多的时间.经过实践考验,证明坝的质量良好。 This article mainly discusses several major aspects related to the design of the mixed bulkhead dam in Naian Hydropower Station, such as dam type review, profile design, stability calculation and stress analysis. It is pointed out in the paper that the dam type has the obvious economy, and has the popularization and application value to the prefecture-level project which has a certain dam height and has certain natural conditions. Discusses the profile design should take into account the structural characteristics of the dam and the local construction conditions. The analysis method of the stress when the dam body consists of two different elastic modulus materials is put forward. The concept of area conversion according to elastic modulus is proposed. It has been more than four years since the dam was completed and put into operation and proved to be of good quality after practical tests.