| 摘要 |
PROBLEM TO BE SOLVED: To provide a support structure and a support method of the natural ground, capable of supporting an excavation expected part even under the ground of the deep depth. SOLUTION: This support structure 1 supports the periphery of the excavation expected part 10 in advance when excavating the natural ground 8 between two shield tunnels 2 and 4, and has a circular arc-shaped bent pipe 16, a reinforcing steel material 26 arranged in this bent pipe 16, a solidifying material 30 filled in the bent pipe 16, the improved ground 8A of improving the ground around the bent pipe 16, and a support material 6 arranged in the natural ground 8 above and below the excavation expected part 10. COPYRIGHT: (C)2009,JPO&INPIT |
