室内试验是研究砂土震陷的重要方法,综述了国内外砂土震陷室内试验研究现状和进展,介绍了砂土震陷试验原理,分类简述了试验仪器的适用范围和特点,对各种试验方法的优缺点和适用性进行了比较和评述.分析了室内试验的内在因素(砂土特性)和外在因素(荷载特性)对砂土震陷的影响.最后指出场地震陷预测、荷载多维性、荷载方向性、砂土组成特性等方面研究存在的不足,为以后的研究提供参考.
Laboratory tests are commonly used to investigate seismic compression of sands. Research status and recentadvances in laboratory tests of seismic, compression of sands are reviewed. After a brief introduction to principles of seismiccompressionof sands, the applicable scope and c.hamc.teristic. of instruments are sketched in detail. And the advantages anddisadvantages of each experimental method are discussed and compared. Furthermore, this paper analyzes the effects ofinternal factors ( soil properties ) and external factors ( load characteristics ) on seismic compression. Finally, theshortcomings of recent research are proposed, including compression prediction of field, multidimensional loads,directionality of loads and soil properties, which provides reference for further issues.