Before the construction of pressurized poured pile, the situation of pile foundation operation area should be determined to ensure the stable construction of pressurized poured pile. The following contents are the installation preparations of pile machine before the construction of pressurized poured pile in Shanghai strong foundation:

(1)Before the pile machine is in place, the foundation of the operation area should be treated, and the bearing capacity of the treated foundation should be reached160KN/m2, if not to use subgrade box reinforcement, to ensure that the foundation does not occur uneven settlement.

(2)Retest the pile position before the drilling rig is in place. During the construction, the drill bit is aligned with the pile site to stabilize the drilling rig, ensure that the drilling rig is in the construction and the lower end of the drill pipe is away from the ground10～20cm, align with the pile position, press into the soil, so that the deviation of the pile center is not greater than10mm.

(3) After the pile machine is in place, keep the pile machine stable, adjust the turret vertical, and the connection of the drill pipe should be firm.

(4Ensure that the center of the drill pipe and the center of the guard are on the same plumb line.

(5Before starting the drill, the dirt blocks and residual concrete in the drill bit should be cleaned up.

(6Check all connection parts before construction.

Shanghai Qiangqiang Foundation Engineering Co., LTD. 's business covers foundation pit engineering, pile foundation engineering, land and waterFoundation treatment , slope treatment and other engineering fields. Around" Excellent technology, reliable process ", construction fast "technical requirements, Is to provide customers with land, water foundation engineering technical consultation, construction services and other comprehensive solutions of the entity enterprise. Contact Number:400-1002850