Research on Construction Planning for Bridge in Mountainous Area Based on GIS/BIM Virtual Construction Technology

Abstract

It is difficult to plan the construction of super large bridge in mountainous area by traditional methods due to the complex geological conditions and narrow sites there. This paper proposed a new construction method of virtual construction platform for the construction planning of super large bridge in mountainous area applied in engineering based on BIM/GIS virtual construction technology. Based on the visual representation of BIM model and taking the GIS graphics engine as a carrier, this method combines the temporary building, the main structure and the geographical environment for virtual presentation. An integrated platform of model, data and rendering is formed for the realization virtual planning, virtual construction, digital twin, data supervision and other functions. Taking the pre-construction planning of a grand suspension bridge in the complex mountainous area of southwest China as an example, this virtual construction technology is used to realize the goal of the intelligent application in three aspects, namely, 3D planning of temporary construction site, intelligent control of access road and virtual preview of construction progress.