| 摘要 |
PURPOSE:To improve workability by a method wherein a bearing frame body is movably set in a skin plate, wherein the bearing frame body is moved forward with a reaction on a segment, and wherein a shield excavator is propelled with a reaction on the bearing frame body. CONSTITUTION:In a skin plate 2 a bearing frame body 5 is movably set, and on the frame body 5 a plurality of extruding jacks 5 are arranged, and on the front surface of the frame body 5 a plurality of shield propelling jacks 7 are arranged. After that, jacks 6 are extended and the jacks 7 are shrunk, and the frame body 5 is positioned on the front side in the plate 2, and natural ground is excavated by a cutter device 3, and in the meantime with a reaction on the frame body 5 by the jacks 7 a shield excavator 1 is propelled. Then while the jacks 6 of sections for assembling segments S are contracted by an element device 4, the segments S are assembled one by one. Accordingly, workabilty can be improved. |
