Construction method of poundation with ground improving and pull-out resistance improving

摘要

The present invention relates to a ground improvement pullout resistance foundation construction method. The ground improvement pullout resistance foundation construction method includes: a step (1) of forming a lower expanding part (D) in which injected liquid and excavation soil are mixed and stirred, and an upper expanding part (U) which is larger than the external diameter of a core part (C); a step (2) of installing a metal foundation plate (120) for the formation of the upper surface of a foundation; and a step (3) of constructing the foundation (130) by placing and curing concrete in the lower part of the foundation plate (120). Through the present invention, load carrying capacity, pullout resistance, horizontal force and bending moment resistance performance can be considerably improved.