| 摘要 |
PROBLEM TO BE SOLVED: To prevent sediment from being fixed in a chamber by efficiently fluidizing the sediment in the chamber. SOLUTION: This shield machine includes a shield frame 11 which is formed cylindrically and having a partition wall 12 partitioning the inside thereof into front and rear parts, a plurality of swing cutters 13 which are installed on the partition wall 12 swingably around the axis extending in the excavating direction and arranged at predetermined intervals, and rotary cutters 31 which are installed on the partition wall 12 between the plurality of swing cutters 13 rotatably about the axis extending in the excavating direction and displaced in the excavating direction relative to the plurality of swing cutters 13 so as not to be interfered with the plurality of swing cutters 13. COPYRIGHT: (C)2010,JPO&INPIT |
