Bracket for installing soil pressure meter in construction period of deep foundation pit and using method thereof

The invention discloses a bracket for installing a soil pressure meter in a construction period of a deep foundation pit. The bracket comprises threaded rods, winches, pushing rods and a secondary meter. One or more reinforcement cages are arranged, and one or more steel wire ropes are disposed. The upper ends of the steel wire ropes are fixed to the tops of the reinforcement cages; one ends of the threaded rods are welded to steel bars in the reinforcement cages, the other ends of the threaded rods penetrate through the winches and are sleeved with the pushing rods, and the axis of each threaded rod is perpendicular to the side face of a soil retaining side; each winch comprises a winch wheel, a winch steel pipe and a winch steel wire shaft; the steel wire ropes are wound on the peripheries of the winch wheels, and the winch steel pipes are connected with the threaded rods through threads; one end of each pushing rod is connected with the corresponding winch steel pipe, and the otherend of each pushing rod a