基于BIM碰撞技术的国际大都市机场地下管网施工应用研究

Research on Construction Application of Underground Pipe Network in International Metropolitan Airport Based on BIM Clash Technology

为提高国际大都市机场跑道地下管网施工效率,将BIM碰撞技术与机场地下管网施工的特点相结合,以香港国际机场三跑道项目施工实践为支撑,制定出标准化的机场跑道地下管网碰撞协调工作流程和碰撞检测规则,对机场跑道地下管网系统进行碰撞检测、协调以及方案调整。并以模型、表格结合相互印证的形式精确记录、跟踪每个碰撞冲突解决的状态和方案,实现碰撞解决状态、记录实时可查目的;同时在碰撞和方案调整的基础上依据Civil 3D软件强大出图特点,正向输出施工碰撞协调深化图和调整记录,并经过设计审批确认后作为正式施工深化图纸,实现对现场施工直接指导,从而有效地提高了机场地下管网施工协调效率,减少了工程返工和材料浪费的现象,降低了项目施工成本。

In order to improve the efficiency of the underground pipe network of the runway in the international metropolis,the BIM clash technology is combined with the characteristics of the construction of the underground pipe network of the airport.From the experience of the construction practice of the three runways project of the Hong Kong International Airport,this paper establishes a standardized clash coordination work flow and clash detection rules for the underground pipe network of the airport runway,and then the clash detection,coordination and scheme adjustment of the underground pipe network system of the airport runway are carried out according to these rules and processes.This paper also manages to accurately record and track the state and scheme of each clash conflict resolution in the form of model,table and mutual verification,so as to realize the clash resolution status and record real-time viewable.After the clash and scheme adjustment,the construction clash coordination deepening map and adjustment record are output according to the powerful drawing characteristics of Civil 3D software.With design approval and confirmation,it is used as a formal construction deepening drawing to directly guide the on-site construction,thus effectively improving the construction coordination efficiency of the airport underground pipe network,reducing the project rework and material waste,and reducing the project construction cost.