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Intelligent Risk Assessment for Dewatering of Metro-Tunnel Deep Excavations

机译：地铁隧道深基坑降水的智能风险评估

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摘要

In recent years, China has been undergoing a metro railway construction boom in order to alleviate the urban traffic congestion problem resulting from the rapid urbanization and population growth in many metropolises. In the construction of metro systems, deep excavations and continuous dewatering for construction of the metro tunnels and stations remain a challenging and high risk task in densely populated urban areas. Intelligent computational methods and techniques have exhibited the exceptional talent in dealing with the complicated problems inherent in the deep excavation and dewatering practice. In this paper, an intelligent risk assessment system for deep excavation dewatering is developed and has been applied in the project of Hangzhou Metro Line 1 which is the first metro line of the urban rapid rail transit system in Hangzhou, China. The specific characteristics and great challenges in deep excavation dewatering of the metro-tunnel airshaft of Hangzhou Metro Line 1 are addressed. A novel design method based on the coupled three-dimensional flow theory for dewatering of the deep excavation is introduced. The modularly designed system for excavation dewatering risk assessment is described, and the field observations in dewatering risk assessment of the airshaft excavation of Hangzhou Metro Line 1 are also pre-sented.
机译：近年来，为了缓解由于许多大城市的快速城市化和人口增长而导致的城市交通拥堵问题，中国一直在经历地铁建设热潮。在地铁系统的建设中，在人口稠密的城市地区，对地铁隧道和车站进行深挖和连续脱水仍然是一项充满挑战和高风险的任务。智能计算方法和技术在处理深层开挖和脱水实践中固有的复杂问题方面表现出了卓越的才能。本文开发了一种智能化的深基坑脱水风险评估系统，并将其应用在杭州地铁1号线项目中，该项目是中国杭州城市快速轨道交通系统的第一条地铁线。论述了杭州地铁1号线地铁隧道竖井在深基坑脱水中的具体特点和巨大挑战。介绍了一种基于耦合三维流理论的深基坑脱水设计新方法。介绍了模块化设计的基坑降水风险评估系统，并提出了杭州地铁1号线气井基坑降水风险评估的现场观察。

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  • 来源
    《Mathematical Problems in Engineering》 |2012年第12期|618979.1-618979.13|共13页
  • 作者

    X. W. Ye; L. Ran; T. H. Yi; X. B. Dong;

  • 作者单位

    Institute of Transportation Engineering, College of Civil Engineering and Architecture, Zhejiang University, Hangzhou 310058, China;

    Hangzhou Metro Group Co., Ltd., Hangzhou 310020, China;

    Research Center for Structural Health Monitoring and Control, School of Civil Engineering, Dalian University of Technology, Dalian 116023, China;

    Hangzhou Metro Group Co., Ltd., Hangzhou 310020, China;

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