To provide a construction supporting structure capable of suppressing a construction cost increase.
A construction supporting structure 10 has an earth retaining wall 12. In an underground on the side of a natural ground 16, an anchor body 14 having a soil cement column is provided. The soil cement column is constructed in a circularly columnar shape by drilling a ground 16 using an auger and agitating and mixing original soil and cement milk. Reinforcing fibers 22 are mixed inside the anchor body 14, and a drilled part 15 above the anchor body 14 is back-filled by sediment. The anchor body 14 and the earth retaining wall 12 are connected to each other via an anchor bolt 18. To one end of the anchor bolt 18, a retaining fitting 24 is mounted. The other joint part of the anchor bolt 18 is bolt-joined to the earth retaining wall 12. The anchor bolt 18 is mounted tilting in such a direction that the side of the anchor body 14 is lower than the side of the earth retaining wall 12, to operate tensile force angle θ to the lower side of a horizontal plane.
OTA HIDEHIKO
SATO EIJI
HIRAI YOSHIO
Kato Kazunori
Hiroshi Fukuda