Section 37
Chapter 36,157

Effect of multiple passes of tractor with varying normal load on subsoil compaction

S.K.P.tel; Indra Mani

Journal of Terramechanics 48(4): 277-284


ISSN/ISBN: 0022-4898
DOI: 10.1016/j.jterra.2011.06.002
Accession: 036156883

Download citation:  

A field experiment was conducted on alluvial soil with sandy loam texture, in a complete randomized design, to determine the compaction of sub-soil layers due to different passes of a test tractor with varying normal loads. The selected normal loads were 4.4, 6.4 and 8.4kN and the number of passes 1, 6, 11 and 16. The bulk density and cone penetration resistance were measured to determine the compaction at 1 equal intervals of 5cm down the surface. The observations were used to validate a simulation model on sub-soil compaction due to multiple passes of tractor in controlled conditions. The bulk. Highlights: The effect of different normal load and different passes on sub-soil properties were studied in the field condition. The soil bulk density and soil resistance are measured by core sampler and dynamic cone penetrometer. The influence of normal load and different passes are presented in graphical form so that critical depth was identified. Multiple regression models are validated to the field data which was developed under lab experiment data. With the use of multiple regression models, the bulk density, penetration resistance is determined.

PDF emailed within 0-6 h: $19.90