Analysis of the Mechanism of Soil Cutting : 5th Report, Cutting Theories of Soils

抄録

Two-dimensional cutting theories of soils (dry quartz sand and plastic loam) are made. Such quantities of the cutting as the magnitude and directions of the cutting force, its application point, and the direction of shear plane are determined from geometrical cutting conditions, soil failure conditions and frictional conditions between soil and a cutting blade. Experimental results agree approximately with the theoretical results, and it is confirmed both experimentally and theoretically that the cutting force is reduced effectively by the application of electro-osmosis to the low-frictional cutting blade.