Nowadays

vibroflotation without additional backfill treatment method has been widely used in the treatment of foundations at home and abroad. Because of its merits such as the simpleness of construction technology

the applicability and without ‘three materials’ (wood

reinforcing steel bar and cement)

it has become one of the most common ways for weak foundations

especially for sands. By giving a review of the reinforcement mechanism

applicability and construction technology of vibroflotation without additional backfill treatment method

the research situation of three key factors in vibroflotation without additional backfill treatment method has been summarized. What's more

the latest technical progress about the technology----the application in the treatment of fine sands and reclaimed silty sands has been discussed emphatically. Finally

the existing questions and developing direction in study are pointed out.