综合管廊抗震分析研究进展综述

针对目前城市综合管廊建设方兴未艾、抗震防灾需求日益凸显的现状，总结评述目前综合管廊抗震分析的研究进展。首先，归纳总结综合管廊结构的震害特点和关键影响因素，并在此基础上对国内外综合管廊抗震研究的发展历程和重要突破进行综述；然后，重点从影响综合管廊地震响应机制的关键要素出发，即从输入地震动特征、工程场地特性、管廊结构形式与构造特点3个方面对综合管廊抗震研究现状以及存在的不足之处进行综述；最后，对综合管廊减隔震研究现状进行讨论。研究表明： 1)输入地震动特征会对综合管廊地震响应产生显著影响，对于浅埋结构还应关注地表Rayleigh波的作用； 2)工程场地特性研究聚焦在饱和液化地层、断层破碎带等不利场地条件对综合管廊结构地震响应的影响机制方面； 3)新型管廊结构形式和节点构造层出不穷，但目前的研究工作主要关注管廊结构自身的地震响应特征。建议后续研究重视综合管廊功能性对抗震安全性的需求，进一步加强“结构-功能”一体化抗震性能设计方法与指标体系的研究工作。

Review on Seismic Analysis of Utility Tunnels

Presently, the construction of urban utility tunnels is booming, and seismic demand for tunnel structures is also prominent. Hence, the seismic analysis development of utility tunnels is reviewed. First, the seismic damage characteristics of utility tunnel structures in historical seismic damage cases are comprehensively summarized, the influencing factors of the seismic response of the utility tunnel are analyzed, and the development history and important breakthroughs of seismic research on utility tunnel around the world are presented in detail. Second, the current status and shortcomings of the research on the influence mechanism of key elements (input ground motion characteristics, engineering site characteristics, structural type, and structural characteristics of utility tunnel) on the seismic response of utility tunnels are discussed. Finally, the research progress of seismic isolation for utility tunnels is introduced. It is concluded from the literature review that: (1) Seismic input characteristics have significant influences on seismic responses of utility tunnels, and the surface Rayleigh wave should be considered in the seismic design for shallow buried tunnel structures. (2) Current studies related to engineering site characteristics should focus on the impact of adverse geological conditions, such as saturated liquefaction soils or fractured faults on seismic response of utility tunnels. (3) New structural types or joint characteristics are constantly emerging, but current seismic studies of utility tunnels mainly focus on the seismic response characteristics of the tunnel structure. Therefore, subsequent research should pay more attention to seismic safety requirements on the function of utility tunnels and further strengthen the research on seismic performance design method and corresponding index system for "structure function" utility tunnels.