INSERTING DEVICE FOR EARTH RETAINING STEEL

PROBLEM TO BE SOLVED: To provide a device capable of easily inserting earth retaining steel serving as a core material while maintaining safety and work quality even when the specific gravity and viscosity of a preceding excavated hole influenced by the reduction of the filling quantity of a hardening agent in a construction process of a soil-cement column pile or a soil-cement array column pile constructed reducing the discharged residual earth quantity by reducing the filling quantity of a hardening agent such as cement milk. SOLUTION: This earth retaining steel inserting device is provided with a driving box having a driving roller and a driven roller, and a hydraulic motor and a hydraulic cylinder for actuating these rollers, and is provided with a contact plate and a horn; and an exciter having a guide member and a mounting bracket. Work as an attachment of a power shovel can thereby be performed, and even in the presence of an adjacent earth retaining steel projecting from the ground, the earth retaining steel can be gripped from the side in an optional position without being obstructed by the adjacent earth retaining steel, and determined in the insert direction and continuously inserted without repeating the vertical movement of the device.