Method for Alternate Basement Vertical Structure Construction Method in Top Down Construction Project

摘要

The construction method of the reverse punching method that alternates every other according to the present invention is After installing the retaining wall and installing the underground pillar piles, the first step of excavating the first basement floor and constructing the first floor above the ground; a second step of constructing the first basement core in order to support the above-ground core to be constructed upward while constructing the basement slab as a lower floor; A third step of constructing the underground vertical members alternately downward; After constructing the lowest floor mat or foundation, simultaneously constructing the remaining basement vertical members; It is characterized by shortening the construction period of the underground vertical member so that the subsequent above-ground framing and finishing works can be started early, thereby shortening the overall construction period.