Contrast on Static and Dynamic P roperties of Taiyuan Loess

Th is paper is mainly to study the static and dynamic properties of Taiyuan loess by large numbers of laboratory tests such as triaxial test, collapse coefficient test and seismic subsidence test under different moisture contents. We discover that the dynamic strength of loess is lower than the static strength at lower moisture content. But with the increasing of moisture content, dynamic strength will be close to static strength. The relationship between coefficients of collapsibility and seismic subsidence can be set up through moisture content. Keyw ords: l oess, moisture content, dynamic strength, static strength, seismic subsidence, collapse.