The Effect of Load and Inflation Pressure of a Stiff-Carcass Tyre on selected Soil Compaction Related Factors
Journal Title: Journal of Agricultural Machinery - Year 2013, Vol 3, Issue 1
Abstract
Soil compaction can occur as a result of a number of factors. One of the most important factors is soil response to pressures imposed by wheels and soil engaging tools. This research investigated the effect of tyre load and inflation pressure on soil compaction-related factors. These factors include rut width, rut depth, cone index and horizontal force in different layers of soil profile. In this research a stiff carcass tyre has been used and a soil compaction profile sensor in controlled soil bin laboratory conditions. This sensor consisted of eight flaps, each equipped with strain gauges, installed on a subsoiler leg face with working depth of 45 cm. Studies were conducted using a factorial experiment at two levels of axle load of 6.3 kN and 23.9 kN and three levels of inflation pressure of 324 kPa, 524 kPa and 724 kPa with three replications in a randomized complete design. Duncan test and F test were applied to compare the means of pressure and axle load, respectively. The soil compaction profile sensor measured soil compaction at different layers from soil surface to 45 cm depth at 5 cm interval. The results of experiments indicated that vertical load significantly affected the horizontal force at different tyre inflation pressures on the soil profile. The tyre inflation pressure exhibited greater effects on shallow depths than those of higher depths. The amount of rut width, rut depth and cone index increased with an increase in vertical load. Increasing of the inflation pressure decreased rut width and increased rut depth and cone index.
Authors and Affiliations
A. Sharifi Malvajerdi,M. Younesi Alamouti,A. Mohsenimanesh,
Keywords
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