A new method to recently-filled hydraulic fill treatment

The problems of the vacuum preloading method in treating recently-filled hydraulic fill are analyzed. The improved vacuum preloading method is put forward for the treatment of recently-fill hydraulic fills; the model tests of the key technology of the improved vacuum preloading method have been performed. The superiority of the method is studied. The study result shows that: the improved vacuum preloading method can overcome the disadvantages of the vacuum preloading method in dealing with recently-fill hydraulic fill, can be constructed on the surface of the mud fill directly, and can save processing time more than 6 months and about 40% of the pre-processing costs.