2022 Volume 21 Issue 3 Pages 217-222
To determine the unit work efficiency required to fabricate and install the bamboo strips as cross-drainage ditches, the time required was calculated, and the fabrication and installation cost was determined. Based on the number of working hours spent on the fabrication process, that were obtained via video recording, the efficiency for unit work of the bamboo strips was estimated to be 0.032–0.049 man/unit, and the efficiency for unit work of the cross-drainage ditch including the installation stage was calculated to be 0.067–0.084 man/unit. The cost of the cross-drainage ditches including the installation stage was estimated to be 1,886–2,398 yen/unit, and that of the materials and fuel oil was estimated to be 1,137–1,649 yen/unit.
