Study on the Interaction between Soil and the Five-Claw Combination of a Mole Using the Discrete Element Method

Table 3

Comparison of the soil rupture distance ratio by simulation of the five-claw combination and prediction of simple blades by Hettiaratchi et al. [9].

Rake angle (deg)	Soil rupture distance ratio ()		Error (%)	Average error (%)
	Simulation	Prediction
30	3.2	3.5	−8.6	−19.6
50	2.6	2.8	−7.1
70	2	2.7	−25.9
90	1.9	3	−36.7