An Analytical Model for Predicting Cross-Country Vehicle Performance. Appendix F. Soil-Vehicle Relations on Soft Clay Soils (Surface Composition)
ARMY ENGINEER WATERWAYS EXPERIMENT STATION VICKSBURG MS
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Sixty-six acceleration-deceleration tests were conducted with three wheeled and two tracked vehicles at five sites in Thailand. The principal conclusion from these tests was that vehicle deceleration in soft clay soils can be correlated with soil strength expressed as the average 0- to 6-in. cone index. The analysis indicated that acceleration increased with an increase in soil strength, but no definitive correlation could be established. Semiempirical and empirical relations were used in a first-generation analytical model to predict average speed over the test courses. Comparisons of measured and predicted speeds led to recommendations for specific additional studies to improve the reliability of the WES analytical model.
- Surface Effect Vehicles and Amphibious Vehicles