| 摘要 |
PROBLEM TO BE SOLVED: To provide a method and a structure capable of easily and sufficiently reinforcing a foundation provided with a soil-retaining wall.SOLUTION: The reinforcement method of the foundation G provided with the soil-retaining wall 10 comprises a process of forming a drilled hole 11 in the foundation G from the soil-retaining wall 10, a process of injecting an outer grout material X1 into the drilled hole 11, a process of inserting an injection pipe 20 having a plurality of injection holes 22 at an interval in the axial direction into the drilled hole 11, a process of injecting a diameter expanding grout material X2 into the foundation G via the injection holes 22 provided in the injection pipe 20, a process of injecting an inner grout material X3 into the injection pipe 20, a process of inserting a tension member 31 into the injection pipe 20 and a process of fixing a base end part of the tension member 31 to the soil-retaining wall 10, and also comprises a process of inserting a bar material 41 into an injection area X2a of the diameter expanding grout material X2 from above the foundation G before solidifying the diameter expanding grout material X2. |
