循环剪应变与地震期间饱和砂土孔隙水压力增长之间的相关特性,最近受到国内外学者的普遍重视。笔者在最近的试验研究中曾验证了在应变控制的不排水循环三轴试验中,饱和砂土的孔压增长特性受诸如试样制备方法、相对密度、不同的土类以及循环荷载的波型与波序排列等多种因素的影响,均大为减小。 The correlation between the cyclic shear strain and the increase of pore water pressure in saturated sand during the earthquake has recently received widespread attention from scholars at home and abroad. In recent experiments, the author has verified that in the strain-controlled undrained cyclic triaxial tests, the pore pressure growth characteristics of saturated sand are affected by wave patterns such as sample preparation method, relative density, different types of soil, and cyclic loading. The influence of various factors such as the arrangement of the wave sequence is greatly reduced.