A pneumatic control
rock cutting device for a rock-embedded
pile soft-hard
interphase layer can meet the accurate drilling requirement of the soft-hard
interphase layer in the rock-embedded
pile construction process, and ensures drilling quality meeting design standards. The pneumatic control
rock cutting device comprises a
rock cutting retaining cylinder, a conical
cutting tool
system, a toothed
cutting tool
system, a
vibration sensing system, a pneumatic
sensing system, a pneumatic bag system, a high-pressure
water pipe, a multi-path connector, an isolation spring, a
drill rod, a pneumatic controller, a vibration controller, a high-pressure water pump, a cable, power adhesives, a pneumatic flow controller, a pneumatic stabilization bolt, a rubber shock pad, an isolation fastening bolt and retaining pins. The pneumatic control rock
cutting device has the advantages that according to the stress condition of soft-hard rock cutting,
constant pressure of a drilled soft rock is kept,
pneumatic pressure is applied to incompletely
cut hard rocks, and the device solves the common problems that a rock-embedded
pile easily deviates in construction in the soft-hard
interphase layer and a reinforcement cage cannot descend for installation by the aid of the criterion of '
constant pressure-pressurization'.