Disclosed are a drilling rig for drilling with a following
pipe pile and a construction method for the following
pipe pile. The drilling rig is provided with a
chassis, a platform, a cab, a power
system, a hydraulic
system, a
control system, upright columns, supporting rods, a vertical
winch, a power head, a soil
discharge box, a spiral
drill stem
assembly, a
reamer bit, a
vibration exciter, an adjusting cylinder, a manned
hanging basket, a
hanging basket winch, a pressurizing
winch, an auxiliary winch and a
pile controller, wherein the platform, the cab, the power
system, the hydraulic system and the
control system are located on the
chassis, the upright columns and the supporting rods are mounted on the platform, and the auxiliary winch is used for hoisting heavy objects. The construction method for the following
pipe pile comprises following steps: leveling the pile controller after the pile controller is aligned with a pile location and adjusting verticality of upright columns of the drilling rig; mounting a prefabricated pipe pile and a
drill and leading the
reamer bit to penetrate out of the lower end surface of the prefabricated pipe pile; forwards rotating the power head, leading a
reamer wing of the reamer bit to be opened to begin to realize reamer drilling and leading the prefabricated pipe pile to be jacked in afterwards; backwards rotating the power head after a preset depth is achieved, withdrawing the reamer wing of the reamer bit to be closed, lifting out the reamer wing of the reamer bit from the inside of the prefabricated pipe pile and starting the
vibration exciter to
impact the prefabricated pipe pile; and realizing grouting piling for the sides and the bottom of the pile.