BIM建模辅助复杂深基坑开挖技术的应用研究

Research on Application of BIM Modeling to Assist Complex Deep Foundation Pit Excavation Technology

在一二线城市开发建设大量的高层建筑物,超高层建筑基坑较深,并且有许多的电梯基坑和集水坑,为了使局部的土方挖掘深度更深,当两个基坑之间的间距比较近时,就会增加挖掘的难度.开挖基坑数量众多,而且基坑侧壁支护工程施工是制约整个工程施工作业效率的关键要素,传统土方开挖的工程工艺容易产生错挖、超挖的问题发生.针对这种情况,要使用BIM技术指导现场土方挖掘,直接交底基坑内边坡的坡面标高信息.

There are a large number of high-rise buildings and super high-rise buildings developed and constructed in firsttier and second-tier cities,their foundation pits are deep with many elevator foundation pits and catchment pits.In order to achieve a deeper local excavation,when the distance between the two foundation pits is relatively close,the difficulty of excavation will be increased.The high number of excavated foundation pits and the construction of foundation pit lateral wall support engineering are the key elements restricting the efficiency of the entire engineering construction operation,and the traditional earthwork excavation engineering process is prone to the problem of wrong excavation and over-excavation.In view of this situation,BIM technology is used to guide on-site earthwork excavation,and the slope elevation information in the foundation pit is directly submitted.