Abstract
Deep vibratory compaction (DVC) is an effective ground improvement method for granular soils in a loose initial state. An efficient numerical approach to simulate the whole process of DVC considering multiple compaction stages with over 1,000 vibrator cycles per stage is presented. The consideration of such a large number of cycles is made possible by applying an extended high-cycle accumulation (HCA) model. The approach allows to determine the optimal duration of vibration per compaction stage and the spacing of the stages of the DVC process. It is shown that a short vibration time per compaction stage with a small vertical distance between stages is favourable from an economical point of view.
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