| 摘要 |
PURPOSE: A stirring device for improving soil is provided to excavate more easily than when drilling using an auger shaft because materials for improving the soil is smoothly mixed with a round soil. CONSTITUTION: A stirring device for improving soil comprises an auger shaft(100), a supply pipe(200), a lower stirring blade(300), and an upper stirring blade(400). The auger shaft is used for drilling a flimsy ground with being rotated and moved up and down. The supply pipe is formed inside the auger shaft and supplies materials for improving the soil. The lower stirring blade is formed around a bottom of the auger shaft to be rotated. The lower stirring blade is operated to open an outlet of the supply pipe when the auger shaft descends with drilling the flimsy ground. A valve of the upper stirring blade is closed(410) by soil pressures when the auger shaft descends and discharges the materials for improving the soil through the other end when the auger shaft moves up. |
