4D construction simulation is an organic integration of 3D construction layout and construction schedule,that is to increase time dimension on the basis of space dimension,so the construction planning is more real.The 4D construction planning simulation of hydropower engineering is studied based on Navisworks,and the 4D construction simulation model of ground projects of Yimeng Pumped-storage Power Station is established.The model can demonstrate the relationship of construction layout and construction schedule and provides favorable guarantee for construction management of project.%四维施工模拟是对三维施工总布置和施工总进度的有机整合,即在空间的基础上增加时间维度,使施工规划更趋真实.基于Navisworks软件开展了水电工程四维施工模拟规划研究,初步建立了沂蒙抽水蓄能电站地面工程四维施工模拟模型,真实地反映了该工程施工总布置与总进度的关系,为施工项目管理提供了有利保障.
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