Sample scaling in soil compaction assessment experiments with motorized penetrometer

Soil Compaction

Outline of results concerning assessment of soil compaction in Estonia

In Estonia the effect of compaction on soil/subsoil is studied in two leading organizations: Estonian University of Life Sciences (EMÜ) and Estonian Research Institute of Agriculture (ERIA). An attempt has been made to methodologically harmonize them with methodological instructions given in the ISTRO (International Soil Tillage Research Organization). A novel methodology for complex assessment...

Numerical simulation of dynamic soil compaction with vibratory compaction equipment

Roller drums make use of various shapes and their dynamic compaction effect is achieved by different kinds of dynamic excitation systems. The bearing capacity of layered soil constructions can be measured during the soil compaction process. The finite element method has been applied for dynamic analyses using elastic models. For the realistic simulation of the dynamic compaction process it is n...

Soil Compaction and Soil Tillage – Studies in Agricultural Soil Mechanics

Keller, T. 2004. Soil Compaction and Soil Tillage Studies in Agricultural Soil Mechanics Doctoral dissertation. ISSN 1401-6249, ISBN 91-576-6769-1 This thesis deals with various aspects of soil compaction due to agricultural field traffic, the draught force requirement of tillage implements and soil structures produced by tillage. Several field experiments were carried out to study the mechanic...

A Dynamic Cone Penetrometer for Measuring Soil Penetration Resistance

ters to characterize both agricultural and rangeland A DYNAMIC CONE PENETROMETER soils, however, has been limited by concerns about (i) FOR MEASURING SOIL instrument cost, (ii) measurement repeatability, (iii) limited ranges of soil resistance that can be measured by PENETRATION RESISTANCE a single penetrometer, and (iv) difficulties in comparing Jeffrey E. Herrick* and Tim L. Jones data collec...