| 摘要 |
PROBLEM TO BE SOLVED: To improve workability in a repair method for an existing irrigation channel having a retaining wall formed of a sheet pile steel plate 01.SOLUTION: A channel-side front position of a sheet pile steel plate 01 is excavated, and a gabion 1 is laid on an excavated location. A narrow concrete panel 4 having a downward inclined leg part 42 protrusively provided on a lower front surface is driven into a channel bottom surface on the backside of the gabion on the excavated location, and the inclined leg part 42 is positioned on the gabion 1. Thus, a retaining wall surface self-standing on the front surface of the sheet pile steel plate 01 is formed. A clearance between the retaining wall surface and the sheet pile steel plate is filled with a proper filler 9. |
