Ground improvement structure and construction method using grout material forming a gap with the ground

摘要

The present invention is formed by the injection of grout material in multiple stages into the ground, and the bulbs embedded while forming a space in the ground; A buried pipe that has a hollow formed so that the grout material is injected to form the bulbs, and connects the ground and the bulbs to transmit the overhead load to the bulbs; It relates to a ground improvement structure using a ground-spaced bulb, characterized in that it comprises; a mounting portion fastened to the upper end of the buried pipe and mounted on the ground.