液化场地-结构动力相互作用振动台试验发展与回顾

Review on Shaking Table Test of Dynamic Interaction of Liquefiable Site-structures System: Retrospect and Prospect

近年来,世界上发生的大地震中均观测到饱和砂土液化现象,建筑物因饱和砂土液化引起的地基失效、桩基沉降等造成大量倾覆破坏,砂土液化相关问题以及饱和砂土与地下结构动力相互作用问题等仍是目前岩土地震工程中的重要研究课题.振动台试验是研究液化场地-结构动力相互作用问题的一种有效方法.本文分析国内外开展振动台试验资料,从振动台模型箱设计、土体边界模拟、模型相似律等方面,回顾液化场地、土-结构相互作用相关问题开展的振动台试验发展,并对以饱和砂土、桩基、地铁车站等不同研究对象的一些振动台试验进行简要介绍.

In recent years, liquefaction of saturated sand has been observed in large earthquakes around the world and the foundation failure and pile foundation settlement caused by liquefaction of saturated sand have caused a lot of overturning and destruction of buildings. Liquefaction and saturated sand-underground structures dynamic interaction are still important research topics in geotechnical seismic engineering. Shaking table test is an effective method to research liquefied site-structure dynamic interaction. In this paper, domestic and foreign materials of the shaking table test were sorted out. The development of shaking table test on liquefaction site and soil-structure interaction was reviewed from aspects of shaking table model box design, soil boundary simulation, and model similarity law. The shaking table tests of saturated sand, pile foundation and subway station were briefly introduced.