For the ultra-soft soil by newly-filled silt ,the bearing capacity is limited after treated by the conventional method for the shallow soft soil treatment,and needs to fill powder of 80 to 100 cm thick to serve as the bearing course for the follow-up board plugging construction.Based on Tianjin Nangang Industrial Zone waterway and harbor dredging combined with land reclamation project (B03 road on the west side of reclamation area 3) soft foundation treatment project,we compare 3 schemes for the reinforcement of ultra-soft soil by the experiment and further optimize the schemes,and attain the goal of unnecessary sand filling or less filling.