The invention discloses a tunneling device for
pipe jacking construction, and relates to the technical field of geological
engineering. The tunneling device comprises a front cylinder, a rear cylinder, a front wall
cutting assembly and a muddy
water storage bin; the side part of the front wall
cutting assembly is rotatably connected with the side wall of the muddy
water storage bin; the tunneling device further comprises a front sealing plate, a smashing
assembly, a power assembly and a water injection and discharging mechanism; a shaft
pipe body rotating on the front sealing plate is arranged on the front sealing plate, the shaft
pipe body is driven by the power assembly to rotate, and a spray head is arranged at the side, away from the front cylinder, of the front wall
cutting assembly and communicates with the shaft pipe body; the smashing assembly is arranged on the shaft pipe body and located in the muddy
water storage bin, and the smashing assembly is used for smashing mud blocks in the muddy water storage bin when the shaft pipe body rotates; and the water injection and discharging mechanism is used for sucking
slurry accumulated in the muddy water storage bin and injecting water spots into the shaft pipe body. By means of the tunneling device, the structure is simple, rotary cutting of soil on the front wall is convenient, tunneling is convenient, mud is
cut up and mixed into the
slurry to be discharged in time, and practicability is high.