胶凝面板堆石坝优化设计

采用非线性数学规划法对胶凝面板堆石坝进行断面优化设计，建立了以大坝的关键几何尺寸为设计变量，以造价为目标函数，以坝体稳定、应力、应力水平及几何尺寸为约束条件的优化设计数学模型，并采用罚函数法求解此优化模型。与原设计方案比较，优化设计方案的堆石方量少、造价低。与普通面板堆石坝相比，胶凝面板堆石坝的优化方案坝坡可以更陡，堆石方量更少、造价更低，且满足应力、稳定的约束条件，得到的断面安全可靠、经济合理。

Optimal design of cemented concrete face rockfill dam

The nonlinear mathematical programming method was used for optimal design of cemented concrete face rockfiU dam. A mathematic model for optimal design was constructed with the key geometric size of the dam as the design variables, the cost as the objective function,and the stability, stress, stress level, and geometric sizes of the dam body as the constraint conditions, and the penalty function method was employed to solve the optimal model. Compared with the original scheme, the optimal scheme for cemented concrete face rockfill dams is characterized by small rockfill quantity and low cost, and the slope of the cemented concrete face rockfill dam is steeper than that of the common concrete face rockfill dam. The optimal scheme meets the stress and stability constraint conditions, and the cross sections obtained are reliable and economical