ON-LINE PSEUDO-DYNAMIC RESPONSE TEST EVALUATION OFMULTILAYER SOIL IMPROVEMENT OF LIQUEFIABLE SOILS

摘要

This paper describes an on-line pseudo-dynamic response test conducted to evaluate the seismicbehavior of soils improved by multilayer soil improvement. Multilayer soil improvementinvolves placing multiple layers of plates in a liquefiable layer and allowing the softening orliquefaction of the untreated soils between the plates so that this behavior serves to attenuateseismic motions, thereby reducing settlement and differential settlement. As a result, it wasverified that untreated layers between the plates placed in multiple layers controlled thepropagation of a shear wave and that multiple layers of plates were more effective than a singlelayer at the same ratio of improvement for attenuating seismic motions.