Fecha de publicación: 30/09/2022 Fuente: WIPO Meat The invention relates to the technical field of foundation pit supporting, and discloses a foundation pit supporting joint box rotary excavating soft occlusion pile forming construction method which comprises the following construction steps: 1) constructing a plain pile hole and placing an orifice platform; 2) inserting a connector box; (3) concrete is poured to form plain piles; the connector box is pulled out, and the orifice platform is removed; (4) the construction step (1) to the construction step (3) are repeated, and plain piles are formed; (5) forming meat pile holes are drilled, after a reinforcement cage is put down, concrete is poured, meat piles are formed, the meat piles are meshed with the two adjacent plain piles, and secant piles are formed; (6) repeating the construction step (4) to the construction step (5); the joint box is adopted to fill the occlusion space of the plain pile, plain pile concrete does not need to be cut when a meat pile hole is drilled subsequently, the plain pile can be used for guiding and protecting the wall of meat pile hole drilling, hole forming deflection caused by uneven stress during cutting due to the fact that the strength of the concrete on the two sides is poor is prevented, the pile forming quality is good, the construction efficiency is high, and the cost is saved.