In-situ test study on hydraulic fills ground improvement by high vacuum compact method

Combined traditional soft ground improvement methods, high vacuum compact method of using alternately high vacuum drainage and dynamic consolidation to accelerate the dissipation of excess pore water pressure and the consolidation of soft soil has been proposed in this paper. The in-situ test has been studied for a hydraulic fill ground improvement in Yellow River Delta region, and construction process, the test parameters, soil deformation, excess pore water pressure and improvement effect have also been analyzed. High vacuum compact method is a time-saving, effective and low-cost soft soil improvement method, which can be suitable for hydraulic fills ground improvement in Yellow River Delta region.