Investigation of the Behavior of Sand Under Repeated Dynamic Loads Using a Large-Scale Model of Soil Base

Results of vibration stamp tests in container with soil are considering. Appearance and progress with time of supplementary settlement of sandy foundation soils under dynamic loads is analyzing. Appearance and progress with time of supplementary settlement of sandy foundation soils under harmonic loads are depended on key parameters of the load. According to our experimental studies we had identified the behavior of settlement in time, with various combinations of frequency, amplitude of forced vibration and static load as follows. After reaching settlement stabilization from the static load applied and the inclusion of the vibrator, depending on the amplitude of the forced oscillations of the vibrator it can starts an additional to the settlement already occurred from static loading. It could be two different kinds if vibrocreep settlement: decaying and sustained settlements depends to the mathematical law most reasonably could be used to approximate the experimental data.