| 摘要 |
A construction method of an underground structure using a concrete filled steel pipe roof and a concrete wall is provided to apply effectively to the soft ground for a wall. The construction method of an underground structure using a concrete filled steel pipe roof and a concrete wall comprises the steps of: indenting upper gallery pipes(110a,110b) from right and left ends of a roof of an underground structure in the longitudinal direction of an underground structure; indenting many slab pipes(120) continuously from one upper gallery pipe to the other gallery pipe and indenting lower gallery pipes(130a,130b) on the lower part of the ground for wall construction; arranging reinforcing pipes in the slab pipes and placing concrete; excavating a space for a side wall of an underground structure downward from the upper gallery pipes; arranging reinforcing bars in the lower gallery pipes and placing concrete from the lower gallery pipes to the upper part of the side wall; arranging reinforcing bars in the upper gallery pipes and placing concrete; excavating the inside soil of the underground structure composed of the upper gallery pipes, the slab pipes, the side wall and the lower gallery pipes; and placing bottom concrete. |
