Abstract
Soil compaction during paddy field consolidation can be managed using TS/GPS positional information about the bulldozer. This method delimits the working area as a grid, and manages the frequency of compaction at every square mesh. However, management accuracy varies depending on the size of the square mesh and the method of determining compaction. In addition, the bulldozer performing paddy field consolidation may travel in various directions over the working area. We examined the size of the square mesh and the method of determining compaction for all directions of bulldozer travel. We recommend the following square mesh size parameter and assessment method for compaction control in paddy field consolidation.
(1) A square mesh size of 20 cm is suitable regardless of the width of the bulldozer's crawler belt.(2) The action ratio method is suitable for determining compaction. This method uses the rate at which the bulldozer crawler belt acts on the square mesh. The cumulative error rate is minimized in this method.
