| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a stirring blade excellent in suppression of earth removal, and an underground stirring apparatus comprising the same.SOLUTION: A stirring blade 10 is annexed to a horizontal member 2 that is elongated in an orthogonal direction of a stirring shaft 1. A cutting-plane line, which is formed when the stirring blade 10 is cut in a vertical direction, and the horizontal member 2 are inclined, and a cutting-plane line, which is formed when the stirring blade 10 is cut in a horizontal direction, and the horizontal member 2 are inclined. The inclined stirring blade is three-dimensionally inclined as above.</p> |
