Compaction effects and soil stresses were examined for four tractor tyres under three inflation pressures: 67, 100 and 150 % of the recommended pressure. The four tyres were 18.4 R 38, 520/70 R 38, 600/65 R 38 and 650/60-38 and they carried a wheel load of 2590 kg. The 650/60-38 was a bias-ply tyre while the other three were radial tyres. Increased inflation pressure significantly increased all measured parameters: rut depth, penetration resistance and soil stress at 20 and 40 cm depth. The 18.4 R 38 caused a greater rut depth and penetration resistance than the other tyres, which did not differ significantly from each other. The soil stress was highest for the 18.4 R 38, followed by the 650/60-38. The low-profile tyres decreased compaction compared with the 18.4-38 tyre, mainly by allowing a lower inflation pressure. The use of low-profile tyres did not reduce compaction if not used at a lower inflaiton pressure. The bias-ply tyre caused a higher stress in the soil than the radial tyres when used with the same inflation pressure, but the compaction effects in terms of rut depth and penetration resistance were not greater for this tyre than for the radial low-profile tyres.


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    Title :

    Soil stress and compaction effects for four tractor tyres


    Contributors:
    Arvidsson, J. (author) / Ristic, S. (author)

    Published in:

    Journal of Terramechanics ; 33 , 5 ; 223-232


    Publication date :

    1996


    Size :

    10 Seiten, 5 Bilder, 2 Tabellen, 11 Quellen




    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English





    Soil stress and compaction effects for four tractor tyres

    Arvidsson,J. / Ristic,S. / Swedish Univ.of Agricultural Sciences,Dep.of Soil Sciences,SE | Automotive engineering | 1996



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