Construction progress digital simulation method based on BIM technology

The invention discloses a construction progress digital simulation method based on a BIM technology. The method comprises the following steps: early-stage preparation; importing a progress schedule and a three-dimensional model; model recycling and endowing tasks which comprises an initial model recycling and endowing task in a design stage and a dynamic model recycling and endowing task in construction practice; setting a task; simulating a manufacturing process; resource derivation. Model recycling and assignment tasks are divided into dynamic allocation of resources of a key line and a non-closed line displayed by a Gantt chart on the BIM, and are timely fed back to a BIM platform for real-time updating, operation guiding and resource internal scheduling of resources in an exhaustive project, so that the overall operation cost of the project is lowest, and the total construction period is not influenced. 一种基于BIM技术的施工进度数字模拟方法，包括以下步骤：前期准备；进度计划表、三维模型导入；模型资源化及赋予任务，包含在设计阶段的初始模型资源化及赋予任务以及在施工实际中的动态模型资源化及赋予任务；任务设定