| 摘要 |
PURPOSE: A segment for a vertical shaft is provided to enable a user to conveniently assemble the segment and a slab and to reduce production costs by reducing components. CONSTITUTION: A segment(100) for a vertical shaft is composed as follows. The inner surface of the segment is selected. Multiple brackets(300) are formed in the selected part at uniform intervals to be protruded. Slabs(200) are placed on the top end of the brackets and are assembled with the segment. |
