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地下工程震害及其抗震性能研究是当前国内外学者研究结构抗震的一个热点方向。由于受周围岩土体的约束,地震作用下地下结构的动力响应特征与地面建筑存在较大差异。针对地下结构特殊的动力响应特征,国内外学者展开了一系列抗震理论分析和模型实验研究。在论述地下结构地震动破坏特征及破坏机制的基础上,总结目前地下结构抗震性能评价的研究进展并指出其存在的问题,提出地下工程抗震分析研究重点及全寿命周期抗震的下一步研究方向,以期为我国强震区地下工程震害机制分析和抗震性能设计提供有益帮助。
Earthquake damage and its seismic performance of underground engineering is a hot spot for earthquake resistance research of domestic and foreign scholars at present. Due to the constraints of the surrounding rock and soil, the dynamic response characteristics of underground structures under ground motion are quite different from those of ground structures. Aiming at the special dynamic response characteristics of underground structures, scholars at home and abroad have carried out a series of seismic theoretical analysis and model experimental research. Based on the discussion of the failure mechanism and the failure mechanism of underground structures, the paper summarizes the research progress of the seismic performance evaluation of underground structures and points out its existing problems. The emphasis of seismic analysis of underground engineering and the next research direction of seismic resistance of the whole life cycle are put forward. With a view to provide useful help for earthquake damage mechanism analysis and seismic performance design of underground engineering in strong earthquake areas.