In the construction of large bridges, strong pier foundation is needed, but there is no pile driver that can be integrated. The usual construction method is to carry out spiral drilling and excavation on the ground to form irregular hole piles; Then the telescopic arm is used to install the morning drum cutter to mill, dig and trim the edge in the pile to form a large square pile; Finally, lift the reinforcement cage and pour cement. The drum cutter plays the role of structural shaping.
——Necessary Tool for Tine Construction -- Yichen Drum Cutter