Vacuum preloading construction structure and method for soft soil foundation

The invention relates to a vacuum preloading construction method for a soft soil foundation, and belongs to the technical field of soft soil foundation treatment. A vacuum preloading construction structure for the soft soil foundation includes a plurality of drainage plates inserted below the soft soil foundation, a plurality of parallel horizontal branch pipes are arranged at the top ends of thedrainage plates in a communication mode, each horizontal branch pipe communicates with a plurality of drainage plates, a same main drainage pipe is arranged at the top ends of the multiple horizontalbranch pipes in a communication mode, the main drainage pipe is provided with vacuum-pumping equipment in a communication mode, the horizontal branch pipes are each provided with a plurality of sets of anti-settling components in the own axis direction, the anti-settling components each include a supporting column driven vertically below the foundation, the lower surfaces of the supporting columnsare connected with the bot