【摘要】 对国内外城市地下线形结构(地下管道、地下铁道和隧道等)震害的形式、成因及外部影响因素,如地震烈度、场地土条件、埋深、结构构造特点及尺寸等进行了综合分析,并就不同地下线形结构抗震措施的制订发表了见解。综合有关文献资料和工程实例,对盾构隧道进行纵向抗震分析,总结了地震区隧道结构的震害特点以及目前所采用的抗震措施,以供地震区隧道结构的设计、施工、加固作参考。更多还原

【Abstract】 The earthquake damage patterns of underground line-shaped structures(including mainly underground pipelines,subway structures and tunnels),causes and external influencing factors such as earthquake intensity,site soil condition,thickness of the overburden soil,and properties and size of the structure etc.in urban areas are analyzed.Opinions on earthquake protective measures of different underground line-shaped structures are given.The behavior of subway tunnel due to seismic damage is discussed and how to decrease the extent of the damage is investigated.,The longitudinal earthquake resistance of shield tunnel is analyzed using FEM for vibration of rod system in visco-elastic ground.The problems that should be further studied are reviewed in order to provide basis for tunnel design and to set up defense against earthquake.更多还原