Secret barrier drill bit is clear away in pile foundation construction

The utility model discloses a secret barrier drill bit is clear away in pile foundation construction, including the cylindrical brill of the one end opening one end confined body, it follows to bore body opening one end boring body edge and being provided with a plurality of drill bits, body edge is being bored in the welding, and the purpose meets barriers such as sand bed, stone can creep into. The opening inboard is provided with the separation net, it is provided with the drilling rod to bore the closed one end outside of the body. The beneficial effects of the utility model are that: reasonable in design, simple structure, specific drill bit is makeed to GPS type rig to convenient preparation for cleaing away super dark secret barrier, adopting the sleeve drill bit to pull secret barrier out, solved the problem that super dark secret barrier is difficult to the clearance, set up and clear away the barrier that the drill bit was cleared up out of cleaing away that the door can be convenient, adopt this kind of mode, reduction pile foundation that can be very big is removed obstacles operating expenses and saving time limit for a project.