液化场地桥台地震破坏模式研究综述

Review on Research of Earthquake Damage for the Bridge Abutment in the Liquefaction Regions

桥台是连接桥梁和路堤的重要结构,在桥梁的整个结构中占据了极其重要的位置。桥台破坏不仅引起自身功能丧失,还可能引发落梁等震害,并最终导致桥梁垮塌。而位于液化场地中的桥台,地震对其影响非常严重。目前国内对桥台震害的研究与我国快速发展的桥梁建设相比仍然不足。在查阅了大量国内外文献资料的基础上,针对液化场地桥台地震破坏模式的研究现状进行深入分析,总结了目前关于液化场地桥台震害破坏原因及破坏模式影响因素等问题的研究成果,论述了目前研究中存在的问题及以后的研究方向,探讨了地震区桥台震害研究领域需要解决的问题。

Abutments are key connection structures between bridge and embankment,and hence play an important role in bridge structures.The damage of abutments can not only cause the loss of function,but also lead to beam falling damage,and even results in bridge collapse.The abutments located in liquefaction regions are more susceptible to earthquake.But research on earthquake damage of abutments is still insufficient at present comparing with the rapid development of bridge construction in our country.According to geotechnical literatures,the current research situation on the damage mode of abutments under earthquake in liquefaction area is analyzed.The researches on causation of seismic damage and influence factor on damage mode of abutments in liquefaction area are summarized.The existing problems and potential research topics in this field are put forward.Discussion on the problem needed to be solved in the field of seismic damage of abutment in liquefaction regions are carried out.