
TY  - JOUR
A1  - Blunden, BG 
A1  - Mcbride, RA 
A1  - Daniel, H 
A1  - Blackwell, PS 
T1  - Compaction of an earthy sand by rubber tracked and tired vehicles
JF  - Soil Research
JO  - Soil Res.
Y1  - 1994
VL  - 32
IS  - 5
SP  - 1095
EP  - 1108
KW  - Soil Compaction;Rubber Tracks;Penetration Resistance;Earth Pressure Cells;Compression;
UR  - https://doi.org/10.1071/SR9941095 
N2  - Normal stresses exerted by two agricultural vehicles (a rubber tracked Caterpillar Challenger 65 and a Steiger Tiger 550 4WD tractor fitted with low pressure dual wheels) were measured with electronic earth pressure cells at four depths (150, 300, 400 and 500 mm) in a sandy soil located in the West Australian wheatbelt. Cone penetration resistance and dry bulk density were also measured at these depths before and after traffic treatments. Uniaxial soil compression testing was done on soil cores sampled at the 300 mm depth where the peak normal stresses were measured during vehicle passage. The Cat 65 exerted less normal stress on the soil than the Steiger 550 at 400 and 500 mm depth. However, the soil had a higher penetration resistance after the passage of the Cat 65 relative to the Steiger 550. Profiles of cone penetration resistance were more discriminating in distinguishing soil physical changes among the trafficked and untrafficked treatments than dry bulk density and most of the parameters derived from compression tests. 
ER  -

