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Bibliography Grains, Durhan, North Carolina; 18. – 23. May 1997. Eds. Behringer, R.P. and Jenkins, J.T. pp. 147 –150. Gallipoli, D., Gens, A. Sharma, R. and Vaunat, J., 2003. An elasto-plastic model for un- saturated soil incorporating the effects of suction and degree of saturation on mechanical behaviour. Geotechnique 51/1:123-135. Gameda, S., Raghavan, G.S.V., McKyes, E. and Theriault, R., 1987. Single and Dual Probes for Soil Density Measurement. Trans. ASAE 30/4: 932-934. Gibson, R.E., 1967. Some results concerning displacements and stress in a non- homogeneous elastic half space. Geotechnique 17: 58-67. Ghezzehei, T.A. and Or, D., 2001. Rheological properties of wet soils and clays under steady and oscillatory stresses. Soil Sc. Am., J. 65: 624-637. Godwin, R.J., 1975. An extended octagonal ring transducer for use in tillage studies. J. Ag. Eng. Res. 20: 347-352. Godwin, R.J., Warner, N.L., and Smith, D.L.O., 1991. The development of a dynamic drop – cone device for the assessment of soil strength and the effects of machinery traffic. J. Ag. Eng. Res. 48: 123-131. Godwin, R.J and Dresser, M.L., 2003. “Review of soil management techniques for water retention and minimising diffuse water pollution in the River Parrett Catchment.” Envi- ronment Agency R&D Technical Report P2-261/10/TR. ISBN 1844321460, 2003. Godwin, R.J. and O’Dogherty, M.J., 2003. Integrated soil tillage force prediction models. Proceedings of the 9 th European Conference of the International Society for Terrain Vehi- cle Systems, Harper Adams <strong>University</strong> College, UK. Godwin, R.J. and Spoor, G. 1977. Soil failure with narrow tines. J. Ag. Eng. Res. 22: 213- 228. Ph.D. Thesis Dirk Ansorge (2007) 182
Bibliography Gregory, A.S.; Whalley, W.R.; Watts, C.W.; Bird, N.R.A.; Hallett, P.D. and Whitmore, A.P., 2006. Calculation of precompression index and precompression stress from soil compression test data. Soil & Tillage Res. 89: 45-47. Gupta, S.C. and Larson, W.E., 1982. Chapter 10 – Predicting soil mechanical behavior during tillage. In: Predicting tillage effects on soil physical properties and processes. American Society of Agronomy, Special Publication 44, 151 – 178. Gupta, S.C. and Raper, R.L., 1994. Prediction of Soil Compaction under Vehicles, pp 71- 90 in Development in Agricultural Engineering 11. Soil Compaction in Crop Production. Soane, B.D. and van Ouwerkerk, C. Eds. Elsevier, Amsterdam, Netherlands. Gurtug, Y. and Sridharan, A., 2002. Prediction of compaction characteristics of fine grained soils. Technical Note. Geotechnique 52/10: 761-763 Haff, P.K., 1997. Why the prediction of grain behavior is difficult in geological granular systems. In: Proceedings of the 3 rd International Conference on Powders and Grains, Dur- han, North Carolina; 18. – 23. May 1997. Eds. Behringer, R.P. and Jenkins, J.T. pp. 61 – 64. Hakansson, I., 2005. Machinery induced compaction of arable soils. Incidence - Conse- quences – Countermeasures. Reports from the Division of Soil Management No. 109. De- partment of Soil Science. Swedish <strong>University</strong> of Agricultural Science. Hettiaratchi, D.R.P. and O’Callaghan, J.R., 1980. Mechanical behavior of agricultural soils. J. Ag. Eng. Res. 25: 239-259. Hettiaratchi, D.R.P., 1987. A critical state soil mechanics for agricultural soils. Soil Man- agement 3/3: 94-105. Hinrichsen, H. and Wolf, D.E., (Eds.) 2004. The physics of granular media. Wiley – VCH Verlag, Weinheim, Germany. Ph.D. Thesis Dirk Ansorge (2007) 183
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Cranfield University School of Appl
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Abstract Ancillary experiments show
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Table of Contents TABLE OF CONTENTS
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Table of Contents 4.1.3 Analysis of
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Table of Contents 11.1.1.1 Comparis
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List of Figures and Tables Figure 3
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List of Figures and Tables Figure 1
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Nomenclature NOMENCLATURE Abbreviat
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Introduction 1 INTRODUCTION 1.1 Bac
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Introduction � Ansorge, D. and Go
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Introduction 1.2 Aim To elucidate t
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Introduction a) the soil compaction
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Experimental Methods 2.1.1.1 Test F
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Experimental Methods had been mount
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Experimental Methods track; the loa
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Experimental Methods 800/10.5/2.5 t
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Experimental Methods term. In the m
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Experimental Methods Soil Surface F
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Experimental Methods Depth (cm) 0 1
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Experimental Methods ence surface c
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Experimental Methods chine derives
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Experimental Methods depth. The dat
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Experimental Methods with water and
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Experimental Methods 2.4 Statistica
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Laboratory Studies Into Undercarria
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Field Study With Full Size Combine
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Alleviation of Soil Compaction Howe
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Alleviation of Soil Compaction not
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Alleviation of Soil Compaction in a
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Alleviation of Soil Compaction diff
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Soil Compaction Models sibilities t
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Soil Compaction Models depends on t
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Soil Compaction Models Wroth (1968)
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Soil Compaction Models however, the
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Soil Compaction Models level. Criti
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Soil Compaction Models Utilizing Ke
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Soil Compaction Models average of m
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Soil Compaction Models Depth (mm) -
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Soil Compaction Models ture content
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Soil Compaction Models with four ot
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Soil Compaction Models Predicted In
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Soil Compaction Models Depth (mm) -
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Soil Compaction Models and 13.7 % b
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Soil Compaction Models Rel. Density
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Soil Compaction Models VCL paramete
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Soil Compaction Models The approach
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Soil Compaction Models surface stay
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Soil Compaction Models This result
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Soil Compaction Models 6.6.1.3 Wate
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Soil Compaction Models σσ 1 (kPA)
Page 147 and 148: Soil Compaction Models pressure to
Page 149 and 150: Soil Compaction Models The response
Page 151 and 152: Soil Compaction Models On medium so
Page 153 and 154: Soil Compaction Models SOILFLEX tak
Page 155 and 156: Ancillary Experiments 7 ANCILLARY E
Page 157 and 158: Ancillary Experiments Average conta
Page 159 and 160: Ancillary Experiments In order to c
Page 161 and 162: Ancillary Experiments contrary, the
Page 163 and 164: Ancillary Experiments Figure 102: S
Page 165 and 166: Ancillary Experiments track and the
Page 167 and 168: Ancillary Experiments even when hav
Page 169 and 170: Ancillary Experiments 7.3.2 Influen
Page 171 and 172: Ancillary Experiments The results f
Page 173 and 174: Ancillary Experiments Figure 117: S
Page 175 and 176: Ancillary Experiments Contact Press
Page 177 and 178: Ancillary Experiments Figure 123: F
Page 179 and 180: Ancillary Experiments Sinkage (mm)
Page 181 and 182: Ancillary Experiments model which o
Page 183 and 184: Ancillary Experiments 7.3.5 The Inf
Page 185 and 186: Ancillary Experiments 7.3.7 Discuss
Page 187 and 188: Ancillary Experiments Terzaghi (194
Page 189 and 190: Ancillary Experiments contact area.
Page 191 and 192: Ancillary Experiments soil forward
Page 193 and 194: Conclusions � The longitudinal so
Page 195 and 196: Bibliography 10 BIBLIOGRAPHY Aboaba
Page 197: Bibliography Defossez, P., Richard,
Page 201 and 202: Bibliography Lamande, M., Schjonnin
Page 203 and 204: Bibliography Seig, D., 1985. Soil C
Page 205 and 206: Appendix 11 APPENDIX Ph.D. Thesis D
Page 207 and 208: Appendix Figure 32: VCL sample at t
Page 209 and 210: Appendix comparison at the deepest
Page 211 and 212: Appendix Estimated Pressure (kPa) 2
Page 213 and 214: Appendix 11.1.1.2.1 SOCOMO One of t
Page 215 and 216: Appendix by Seig (1985) who showed
Page 217 and 218: Appendix Soil water content 15 % an
Page 219 and 220: Appendix Adapting critical state so
Page 221 and 222: Appendix density is obtained by add
Page 223 and 224: Appendix Table 5: Values of constan
Page 225 and 226: Appendix choice of a concentration
Page 227 and 228: Appendix 11.1.3.1 Dense/Hard and Lo
Page 229 and 230: Appendix 11.1.3.2 Stratified Soil C
Page 231 and 232: Appendix To summarize the ability t
Page 233 and 234: Appendix In the following the predi
Page 235 and 236: Appendix concentration factor of 4,
Page 237 and 238: Appendix 11.1.5.1 Confining Pressur
Page 239 and 240: Appendix Figure 24. The VCL created
Page 241 and 242: Appendix Rel. Density 2 1,9 1,8 1,7
Page 243 and 244: Appendix relation of � 1 to � 2
Page 245 and 246: Appendix Rel. Density 2 1,9 1,8 1,7
Page 247 and 248: Appendix Rel. Density 1,7 1,68 1,66
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Appendix Depth (mm) 0,0 100,0 200,0
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Appendix Figure 42: Plate in cookin
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Appendix � z � � �� k c p
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Appendix Table 8: n and k depending
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Appendix to the plate sinkage equat
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Appendix with a slight deviation fr
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Appendix Table 12: DBD values for a
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