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EXCAVATING BIT HAVING AIR-HAMMER AND SCREW FOR EXCAVATING GROUND COMPOSED BY EARTH, SAND, SOFT ROCK AND BOULDER
EXCAVATING BIT HAVING AIR-HAMMER AND SCREW FOR EXCAVATING GROUND COMPOSED BY EARTH, SAND, SOFT ROCK AND BOULDER
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机译:开挖带有气锤和螺丝的钻头,用于开挖由土,砂,软岩和大石头组成的地面
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摘要
The present invention relates to an excavating bit having an air hammer and a screw for excavating ground composed of earth, sand, soft rock, and boulder and, more specifically, to an excavating bit which is connected to the bottom end of a lowermost excavating rod among multiple excavating rods connected and assembled to a ground excavation device in multiple stage. According to the present invention, the excavating bit can reduce construction time and costs required for excavating the soft rock ground.
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