Earth excavation/Soft rock

① Based on excavation, stockpiling, and short-distance hauling by earthwork equipment. ② Excludes loading and hauling costs for off-site disposal of excavated soil. ③ The classification of construction scale shall be applied as follows. Large scale Medium scale Small scale In cases where the work quantity is less than 10,000m3 In cases where the work quantity is 100,000m3 or more In cases where the work quantity is less than 100,000m3 or equipment operation is not smooth due to limited working space, etc. ※ The work quantity means the executed quantity of the earthwork section segmented by structures (bridges, tunnels, etc.) and topographic conditions (rivers, roads, railways, etc.), and the construction scale shall be determined in consideration of the construction period and site conditions. ④ Mixed soil may be applied in the following cases. - When the soil is hard and work is carried out in parallel with a ripper, breaker, etc. - When cobbles, gravel, etc. are mixed, making it difficult to fully fill the bucket ⑤ The volume conversion factor has already been reflected and applies to soil volume in the natural state.