Multi-bin row-by-row soil sampling construction method and system

The invention provides a multi-bin row-connected soil sampling construction method and system, and belongs to the technical field of open caisson construction. The method comprises the steps that a plurality of well holes are selected as main discharge holes, a main pipe is placed in each main discharge hole, and the main pipes are connected with a slurry transfer pool; auxiliary pipes are arranged between auxiliary discharging holes and the main discharging holes according to the principle of proximity, the auxiliary discharging holes are other well holes except all the main discharging holes, one auxiliary discharging hole is provided with one auxiliary pipe, and the auxiliary pipes are used for discharging slurry in the auxiliary discharging holes into the corresponding main discharging holes; the corresponding main suction dredger and the corresponding auxiliary suction dredger are started according to a preset soil sampling sequence, the main suction dredger comprises the main pipe, and the auxiliary suc