Abstract:High-vacuum densification method is a new technology for rapid reinforcement of soft soil foundation,by which we are capable of reducing the water content of the soil,improving the compactness and bearing capacity and reducing the amount of settlement and differential settlement of the foundation after construction through several times of high-vacuum differential pressure drainage and several times of appropriate variable energy densification.To validate the applicability of this method in the project,we carry out typical tests in the car yard area.The test results reveal that the allowable bearing capacity,foundation settlement,foundation modulus of resilience and other indicators all meet the design requirements,and the treatment effect is obvious.It may serve as reference for similar projects at Dayaowan port area of Dalian