【摘要】 本文评论对土试件施加循环荷载的某些常用系统。介绍它们的主要特征和操作原理。详细介绍加州大学贝克莱分校新近制成的价格比较低廉的加荷系统。这种系统由电子控制的压缩空气产生正弦和其他形式的荷载,并用很易购得的部件装配而成。更多还原

【Abstract】 This paper reviews some of the current systems in use for the application of cyclic loads oa soil specimens. Their main features and principle of operation are described. The relatively low-cost system recently developed at the University of California at Berkeley is described in detail. This system provides a sinusoidal and other shape load traces using normal compressed air controlled electronically and is an assembly of commercially available components.更多还原