| 摘要 |
PROBLEM TO BE SOLVED: To provide a multiple shield machine capable of making an adjustment by changing an angle of connecting parts when an excavation shape changes. SOLUTION: A jacking guiding machine 1 has a plurality of cutting parts 12A to 12C and an outer shell extended to its rear. The outer shell is formed of a plurality of cylindrical outer shell parts 13A to 13C variable in a relative position. An angle adjusting mechanism is arranged for fixing the angle of the connecting parts 15A and 15B between the adjacent outer shell parts 13A to 13C in a predetermined position. COPYRIGHT: (C)2007,JPO&INPIT
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