Research On The Optimization Method Of Subway Integrated Pipeline Based On BIM Technology

With the development of economic construction,the efficiency requirements of architectural design have gradually increased.However,under the traditional design mode,the coordination of various professional designs is poor,and design cross-cutting problems frequently occur.The traditional two-dimensional design mode can no longer meet the needs.Building Information Modelling(BIM)is a new type of 3D design technology that has just emerged in recent years.It has attracted the attention of many researchers in the world,and its application in the engineering field has become more and more extensive.BIM has the characteristics of visualization,coordination and optimization,and is a widely used collaboration platform.The application of BIM technology in subway pipeline design can solve many difficult problems.Based on BIM technology,this paper studies the method of subway integrated pipeline optimization,which is mainly divided into two parts: collision detection and spatial layout optimization.The specific content is as follows:Firstly,it expounds the research status of BIM in integrated pipelines and the application status of BIM technology in collision detection,and analyzes the research results at home and abroad in recent years.Secondly,it explains the collaborative design theory of BIM technology and gives the BIM technology design mode and design plan.Then,the integrated pipeline design optimization mode and process are proposed,the4 D simulation construction method optimization model based on BIM,and the integrated pipeline collision detection algorithm is introduced.Based on the hierarchical bounding box algorithm,this paper proposes a more applicable It integrates the optimization algorithm for pipeline collision detection,and designs an algorithm for automatically optimizing collision points,which realizes the automatic optimization function of pipeline collision.Finally,a subway design case of a certain line of Shenyang Metro was analyzed,and the building structure model,electrical sub-model,water supply and drainage sub-model and HVAC sub-model were established,and the merged comprehensive model was subjected to collision detection,which can effectively check the collision points and be effective.The automatic collision adjustment of some examples can not only reduce the loss but also control the cost,which effectively verifies the feasibility of the improved method based on the hierarchical bounding box in this paper.