| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide an installation method for an underground column, which can easily shorten a construction period and which can easily increase installation accuracy.SOLUTION: In an installation method for an underground column, an underground column 7 is installed in a position eccentric with respect to a bearing pile 3a in an inverted construction method. A positioning member 8 protruding downward eccentrically from the underground column 7 is integrally pre-provided at a lower end of the underground column 7. The underground column 7 is suspended in a predetermined eccentric position within a bearing pile excavation range 12, and the positioning member 8 is integrated with placed concrete 11 in the state of being buried in the placed concrete 11 of the bearing pile 3a.</p> |
