摘要
智慧化转型对地下工程数字化与信息化提出了新的要求,数字孪生可有效支撑地下工程真实特征感知、高保真建模、虚实映射与多物理仿真,但目前地下工程数字孪生研究仍处于初始阶段,概念框架、关键理论与技术方向仍不清晰。基于文献调研,分析地下工程数字孪生的研究现状,提出地下工程数字孪生的定义与三维结构,指出其在信息、时间、物理与技术四个维度的关键特征。结合地下工程特点与智慧化转型需求,提出地下工程数字孪生研究中复杂系统精准映射、高保真孪生建模、多物理耦合分析等关键理论技术问题,以期为地下工程的数字孪生理论与技术发展提供参考,推进地下工程全寿命周期智慧化。
Intelligent transformation puts forward new requirements for underground engineering digitalization,Digital Twin(DT)effectively enriches the capabilities of real feature perception,high-fidelity modeling,virtual-real mapping and multi-physics simulation,but research on underground engineering digital twin(UDT)is still in the initial phase,the conceptual framework,theoretical and technological directions are still unclear.Based on literature review,this paper analyzes the research status of UDT,and then the definition and a three-dimensional structure of UDT are proposed,which has four key characteristics of information,time,physics and technology.Combined with the characteristics of underground engineering and the needs of intelligent transformation,this paper proposes three key theoretical and technological directions of UDT research:accurate mapping of complex systems,high-fidelity modeling,and multi-physics coupling analysis,hoping to provide reference for development and application of UDT theory and technology and to further promote the life-cycle intelligence of underground engineering.
作者
李涛
李晓军
徐博
张琦
Li Tao;Li Xiaojun;Xu Bo;Zhang Qi(College of Civil Engineering,Tongji University,Shanghai 200092,China;State Key Laboratory of Rail Transit Engineering Informatization(FSDI),Xi’an 710043,China;Southeast University,Nanjing 211189,China;Engineering Research Center of Civil Information Technology of Ministry of Education,Tongji University,Shanghai 200092,China;China Railway First Survey and Design Institute Group Co.,Ltd.,Xi’an 710043,China)
出处
《土木工程学报》
EI
CSCD
北大核心
2022年第S02期29-37,共9页
China Civil Engineering Journal
基金
国家自然科学基金高铁联合基金(U1934212)
国家自然科学基金(41972277)
关键词
地下工程
数字孪生
概念框架
关键理论技术
underground engineering
digital twin
conceptual framework
key technology
