中文摘要：

多客观的优化方法在这研究被用于水泥沙和石子(CSG ) 水坝的形状优化。经济效率，最大的水平排水量的敏感和浇的水坝的最大的解决铺平变化，全面稳定性，和全面力量安全在优化过程期间被考虑。三个重量系数选择计划被采用进行一个水坝的形状优化，并且案例研究导致两个都，为最佳的剖面图的在上游、下游的水坝斜坡比率等于 1:0.7 的结论，它与到为 CSG 水坝的在上游、下游的水坝斜坡比率的 1:0.8 的 1:0.6 的以经验为主地观察的范围一致。因此，现在的学习具有为设计 CSG 水坝的某些参考价值。

英文摘要：

The multi-objective optimization method was used for shape optimization of cement sand and gravel （CSG） dams in this study. The economic efficiency, the sensitivities of maximum horizontal displacement and maximum settlement of the dam to water level changes, the overall stability, and the overall strength security were taken into account during the optimization process. Three weight coefficient selection schemes were adopted to conduct shape optimization of a dam, and the case studies lead to the conclusion that both the upstream-and downstream dam slope ratios for the optimal cross-section equal 1：0.7, which is consistent with the empirically observed range of 1：0.6 to 1;0.8 for the upstream and downstream dam slope ratios of CSG dams. Therefore, the present study is of certain reference value for designing CSG dams.