Ground subsidence prevention and restoration method for structures with deep soft layers

摘要

A method for preventing and restoring ground subsidence of a structure with a deep depth of soft layer capable of restoring the deep depth in the first step and restoring the shallow depth in the second step is disclosed. The method for preventing and restoring ground subsidence of a structure having a deep soft layer according to the present invention includes a reinforcing step of forming a support pile by pressing a first injection material into a first depth position to form a uniform solidified body; ?? It may include; a restoration step of injecting a second injection material between the upper portion of the support pile formed in the reinforcement step and the ground surface to form a reinforcement body having a wider range than the support pile and restore it.