Research On Construction Management And Safety Risk Early Warning System Of Metro Station Based On BIM

With the rapid development of national economy,the construction of metro project is still growing.But the traditional technology can no longer meet the project management requirements in construction stage for large amount of information in engineering construction,advanced innovative design concept,difficult project coordination,low-level information application and so on,which often leads to safety accidents.BIM meets the requirements of information technology and shows obvious application advantages in construction management.This research relies on the project of "Jinan Metro Line R1 Yanmazhuang West Station Green Construction Visual Design based on BIM Technology(contract number:1737000004011)" to set goals of improving the information management level in metro station construction and reducing the incidence of safety accidents.The researches on metro station information construction management and early warning security risk system platform through BIM technology aim to improve dynamic management and risk control level of construction process.The main research contents are as follows:(1)Taking Jinan Metro Line Yanmazhuang West Station as an example,this research will use Revit to build the main BIM structure model.Based on Navisworks,the analyses will be focused on the concrete BIM application on three-dimensional site layout,construction plan simulation,visual disclosure,collision detection,deepening construction design,progress management and quantity statistics of Yanmazhuang West Station.And the implementation effects and application advantages will be elaborated on Yanmazhuang West Station construction management by BIM technology.(2)First,the research will construct the safety risk early warning index system of Yanmazhuang West Station through dewatering,supporting structure,earth excavation,surrounding environment and main structure.Then,the Rough Set Theory will be used to conduct attribute reduction for the preliminary established early warning indicators and take the core indicators of security risk early warning.According to existing specifications and engineering situation,index quantitative analysis is conducted to form core index scoring standard.Finally,the construction safety risk early warning model of metro station will be built on Structural Entropy Weight Method and Credibility Measure.(3)The development of construction safety risk early warning subsystem will be conducted through BIM.First,design general framework of construction safety risk early warning subsystem based on BIM integrated platform of information and data transfer mode,and use Microsoft Office Access 2010 to build hazard source problem bank to store safety risk factors,treatment measures and other data information.Then,conduct secondary development by Navisworks to realize the implant of security risk early warning model.Finally,apply safety risk early warning subsystem to the construction of Yanmazhuang West Station and take verification and analysis of reliability and stability to realize automation and visualization of safety risk early warning.(4)Build Yanmazhuang West Station information construction management and control platform.According to the station construction management and control objectives and functional requirements,the platform will set six functional application modules,including basic information,BIM model management,progress management,quality management,quantity statistics,and safety early warning,to improve metro station management and control level of information construction.