针对向家坝工程大坝施工特点，系统地分析了混凝土坝施工过程中的各主要因素之间相互联系和制约关系。建立了以塔带机、缆机为主，门塔机、胎带机为辅的组合施工方案浇筑模型，采用计算机跳仓选块的方法，将大坝混凝土施工模拟成果实现动态三维可视化仿真。解决了优化施工程序、施工机械配套及大坝施工工期论证的关键问题。

In view of simulation for concrete dam construction process of the Xiangjiaba Hydro Station, the paper systemically analyses the relation and condition among various main factors during concrete dam construction process. An integration plan, with tower belts and cable cranes as the main equipment and the gantry cranes, belt conveyers as the supplementary equipment, has been adopted for Xiangjiaba construction. By using algorithmic procedure of choosing block from separate bin, simulation result for concrete dam construction is made in the form of three-dimension visual simulation. Furthermore, the authors haveresolved key questions of optimizing execution program of work, matching construction machine and equipment and verification of dam construction schedule.