Grouting apparatus with improved injection performance and grouting method using the same

摘要

The present invention relates to a grouting apparatus for injecting a filler into a ground on one side thereof, characterized in that it comprises: a multistage connection-type outer casing having a predetermined diameter and a length and a bit penetrating the ground at a lower end thereof; A multi-stage connection type inner pipe inserted into the outer pipe so as to be able to be lifted and lowered, an injection port for feeding the filler downward at upper and lower ends, and a discharge port for discharging the filler to be pressure fed; A motor connected to the upper end of the inner tube by a gear, for rotating the inner tube; A mixer for tightening a positive or negative directional screw for pushing down a filling material discharged from the discharge port of the inner tube while stirring the same, so as to be locked in a rotating direction; And a packer in which the filler injected into the ground at the outer and inner surfaces of the outer pipe is inserted and fastened to the outer and inner pipe packers which block the back flow to the ground. Accordingly, it is an object of the present invention to improve the performance of the filler while preventing the backflow of the filler to be injected, thereby improving the overall workability and quality, by forcibly pushing the filler injected into the ground in the tube while forcibly stirring .