发明名称 DRILLING DEVICE FOR PRODUCING DRILLING COLUMN IN SOIL AND METHOD THEREOF
摘要 A drilling device for positioning a drilling pillar on the ground and a method thereof are provided to improve utility and economic efficiency and to increase operation speed. A drilling device for positioning a drilling pillar on the ground comprises a mast(2), a drill driving unit(11), a drilling tube(6), and a tube hopper(30). The drill driving unit is positioned at a conveyor unit(22) supported and moved on the mast. The drilling tube is rotated by the drill driving unit and moved along the mast to bore a drill hole. The tube hopper is connected with the drilling tube and formed with a filler keeping unit filled with a material to fill the drill hole when the drilling tube is moved backward. The tube hopper is positioned on the drill driving unit in a drilling direction and connected with the drilling tube.
申请公布号 KR20070105890(A) 申请公布日期 2007.10.31
申请号 KR20070040600 申请日期 2007.04.26
申请人 BAUER MASCHINEN GMBH 发明人 STOETZER ERWIN
分类号 E21B3/00 主分类号 E21B3/00
代理机构 代理人
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