A slip-line analysis for the bearing capacity of farm land on a sole pan (part 2)-bearing capacity of interfering slip-line fields

摘要

In order to establish a reasonable designing method for traveling device of agricultural machinery, the bearing capacity of farm land is theoretically analyzed by the slip-line field method. The vehicle on farm land is regarded as two adjacentloads penetrating into rigid-perfectly plastic solid with internal friction on rigid sole pan. The five types of interfering slip-line field under such load condition were proposed for relation to load width and its interval in the preceding paper. Inthis study the bearing capacity is calculated for each slip-line field. Then, the radiation in the bearing capacity is discussed in relation to the load width, the load interval and the depth of sole pan.