摘要
针对地下管廊工程建设高速发展、抗震减灾需求愈发凸显的现状,综述地下管廊抗震研究现状.首先,通过国内外以往的震害实例,对地下管廊的震害形式、震害影响因素及震害机理进行了系统性总结.其次,从拟静力试验和振动台试验两个方面总结了地下管廊抗震性能的试验研究现状.再次,总结了地下管廊抗震分析的简化分析方法、动力时程方法、地震易损性评估及减隔震技术的研究现状.最后,基于文献综述提出了目前地下管廊抗震研究亟待解决的问题并做出展望,以期促进地下管廊抗震研究的发展.研究表明:地下管廊在地震作用下的破坏形式主要有混凝土剥落、裂缝贯通、接缝错位或张开、管廊受剪断裂等;地震作用下地下管廊穿越非均匀场地时动力响应的放大效应显著,地下管廊穿越软硬交互等非均匀场地时的抗震性能研究值得重视;交叉节点是地下管廊的薄弱环节,交叉管廊的抗震设计方法研究值得关注;预制管廊接头易受到地震破坏,不同类型预制管廊接头的抗震性能研究需深入探索;城市大型地下管廊系统抗震性能受到不同交叉节点和不同管廊之间的交互影响,高效的地下管廊系统建模方法和高效的简化分析方法亟待研究;城市大型地下管廊系统地震易损性分析是重要的发展方向;地下管廊的减隔震技术值得发展.
In view of the rapid development of underground utility tunnels and the increasing demand for earthquake resistance and disaster mitigation,a status quo review of seismic researches on underground utility tunnels is given.First,the damage modes,factors affecting the seismic damage and seismic mechanism of underground utility tunnels are systematically summarized via examples of seismic damage reported during the previous earthquakes that occurred worldwide.Second,the status quo of researches on the corresponding seismic performance tests is reviewed from two aspects,i.e.,quasi-static tests and shaking table tests.Third,a summary of the status quo of researches on simplified analysis methods,dynamic time-history methods,seismic vulnerability assessment and seismic isolation technologies used in the seismic analysis of underground utility tunnels is given.Finally,based on the literature review,the problems that need to be solved in the existing seismic researches are analyzed and prospected,so as to promote the development of seismic research on underground utility tunnels.Results indicate that the damage modes of underground utility tunnels under earthquake mainly include concrete spalling,crack penetration,joint dislocation or opening,and shear fracture.When underground utility tunnels cross a non-uniform site under earthquake,the amplification effect of dynamic response will be significant,so the seismic performance of underground utility tunnels crossing non-uniform sites where the interaction between soft and hard soils may exist deserves attention.Considering that the crossing nodes of underground utility tunnels are weak links,it is necessary to study the seismic method for crossing utility tunnels.In addition,the joints of precast utility tunnels are also vulnerable to damage,so the seismic performance of different types of joints used in precast utility tunnels should be studied further.Since the seismic performance of a large-scale urban underground utility tunnel system is affected by the interaction between different crossing nodes and different utility tunnels,efficient modeling methods and efficient simplified analysis methods for the system are urgently required.It is projected that the seismic vulnerability analysis of large-scale urban underground utility tunnel systems and the seismic isolation technologies for underground utility tunnels will be two directions for further research.
作者
梁建文
陈慧芳
李东桥
巴振宁
Liang Jianwen;Chen Huifang;Li Dongqiao;Ba Zhenning(School of Civil Engineering,Tianjin University,Tianjin 300350,China)
出处
《天津大学学报（自然科学与工程技术版）》
EI
CAS
CSCD
北大核心
2024年第2期209-222,共14页
Journal of Tianjin University：Science and Technology
基金
国家自然科学基金资助项目(51978462).
关键词
地下管廊
震害
拟静力试验
振动台试验
简化分析方法
动力时程方法
地震易损性
减隔震技术
underground utility tunnel
seismic damage
quasi-static test
shaking table test
simplified analysis method
dynamic time-history method
seismic vulnerability
seismic isolation technology
