| 摘要 |
PURPOSE: An underground structure construction method is provided to omit an installation of a temporary installed structure. CONSTITUTION: An underground structure construction method is as follows. A plurality of perforations is formed to be overlapped each other along an underground structure of a building. Hollow casings are installed to each perforation to maintain the perforations. Reinforcement bodies are installed inside of some hollow casings. The hollow casings are removed after placing concrete into the perforations so that underground structure(10) is formed. The reinforcement bodies are formed into a reinforcement portion of which the lower part has stronger rigidity than the upper part. |
