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SW—Soil and Water: Direct Measurement of Soil Deformation using the Bead-grid Method

✍ Scribed by K. Ohtomo; C.C. Andy Tan

Publisher
Elsevier Science
Year
2001
Tongue
English
Weight
284 KB
Volume
78
Category
Article
ISSN
0021-8634

No coin nor oath required. For personal study only.

✦ Synopsis

Soil compaction is the alteration of physical properties of the soil and has signi"cant e!ect on crop production. With the introduction of larger and heavier agriculture machinery it is now a problem throughout the world. Signi"cant knowledge is still required to study and develop a model to predict soil compaction. Numerous theoretical models are now available but these are far from being able to resolve practical problems. A combination of experimental study and theoretical calculations may provide a solution and lead to the development of an e!ective predictive model. In this study, experiments involving bead-grid are used to measure soil deformation under an axial compressive load. Measurement of horizontal and lateral deformations was performed using precision potentiometers and the data transferred to a computer for the plotting of deformation contours and soil deformation analysis. The results show that the bead-grid method provides an e!ective and accurate means for measuring soil deformation.

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