| 摘要 |
PROBLEM TO BE SOLVED: To provide an earthquake-proof reinforcement method for underground column capable of reducing a construction space, number of construction processes, construction cost, and construction period, and increasing or improving a construction safety, construction environment, and toughness. SOLUTION: This a earthquake-proof reinforcement method comprising a first process in which, while slurry 2 is filled into grounds 51 around reinforced concrete underground column 54, an annular groove 1 is excavated and a steel plate 3 is installed in the excavated annular groove 1 around the underground column 54, a second process in which, while the slurry 2 on the outside of the steel plate 3 set in the annular groove 1 is eliminated, poor-mix concrete 4 is filled for hardening, a third process in which, while the slurry 2 is filled, soil and sand between the underground column 54 and the steel plate 3 is excavated and removed, and a fourth process in which, while the slurry 2 is eliminated, high strength concrete 5 is filled between the underground column 54 and the steel plate 3. |
