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A review of seismic resilience of shield tunnels
Tunnelling and Underground Space Technology ( IF 6.7 ) Pub Date : 2023-03-20 , DOI: 10.1016/j.tust.2023.105075
Xiangsheng Chen , Jun Shen , Xiaohua Bao , Xianlong Wu , Waiching Tang , Hongzhi Cui

Considering the increasingly complex and interconnected subway tunnels linking cities, this review argues that the overall reliability of tunnel engineering is crucial for protection when subjected to loads caused by major catastrophes, particularly earthquakes. Therefore, the key topic of this paper is the application of the resilience concept for shield tunnel structure seismic resilience assessment. In the review, from the technical perspective of civil engineering, based on the five characteristics of resilience, four aspects regarding the seismic resilience of shield tunnels were presented: failure mode and damage mechanism, seismic design method, prevention measures and post-earthquake repair of shield tunnels. First, the definition of seismic resilience of shield tunnel is introduced. Then the failure modes of the shield tunnel under the seismic action and mechanism of damage were summarised under two types: global and local. Consequently, based on the design, several seismic calculation methods were analysed. Next, the current understanding and exploration of shield tunnels in the construction and repair stages were described. Because of lack of relevant repair cases following earthquakes, this review provides a summary of the newly developed techniques and methods of the shield tunnel, which are used to improve seismic resilience during operation. Further, the limitation of the current research were summarised, followed by a short discussion on improving the resilience of shield tunnels in terms of seismic design, construction, operation, and post-earthquake repairs. The final aim is to develop a robust and suitable tool to enhance and maintain shield tunnel resilience, starting from the weaknesses of the tunnel structure faced with earthquakes.



中文翻译:

盾构隧道抗震能力研究综述

考虑到连接城市的地铁隧道日益复杂且相互关联,这篇评论认为,隧道工程的整体可靠性对于承受重大灾难(尤其是地震)造成的荷载时的保护至关重要。因此,本文的研究重点是弹性概念在盾构隧道结构抗震弹性评估中的应用。综述从土木工程的技术角度出发,基于抗震五个特征,提出了盾构隧道抗震抗震的四个方面:破坏模式与破坏机理、抗震设计方法、预防措施和震后修复。盾构隧道。首先介绍了盾构隧道抗震能力的定义。然后总结了盾构隧道在地震作用下的破坏模式和破坏机理,分为全局和局部两种类型。因此,在设计的基础上,分析了几种抗震计算方法。下面介绍了目前在施工和维修阶段对盾构隧道的认识和探索。由于缺乏相关的地震后修复案例,本文总结了盾构隧道在运营过程中用于提高抗震能力的最新技术和方法。此外,总结了当前研究的局限性,然后从抗震设计、施工、运营和震后修复等方面对提高盾构隧道的恢复能力进行了简短的讨论。

更新日期:2023-03-20
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