一、引言不能否认,重力坝的体积较大,造价较高,但它也有构造简单、施工方便、坝顶溢流性能最好等优点,故在宽阔的河谷中,采用重力坝仍然很多。众所周知,重力坝是主要依靠自身重量来维持稳定的,如果设计人员确切地了解并改善它的工作条件,设计出合理的经济断面,则节省的混凝土一定很多,实际意义比较显著。至于坝内各项应力分析,只能起一个校核作用而已。 I. INTRODUCTION It can not be denied that the gravity dam is larger in volume and higher in cost, but it also has the advantages of simple structure, convenient construction and best dam overflow performance. Therefore, in the wide valleys, the use of gravity dam is still a lot. As we all know, gravity dam is mainly rely on its own weight to maintain stability, if the designer to understand and improve its working conditions to understand and design a reasonable economic section, the concrete saved a lot, the actual significance of more significant. As for the stress analysis in the dam, can only play a checking role.