Water content measurement in expansive soils using the neutron probe

Geotechnical Testing Journal

Volumn 34, Issue 3, 2011, Pages

  Fityus, Stephen ^a   Wells, Tony ^a   Huang, Wenxiong ^b  

^a UNIVERSITY OF NEWCASTLE   (Australia)

^b HOHAI UNIVERSITY   (China)

Author keywords

Cracks; Finite element model; Neutron probe

Indexed keywords

AXISYMMETRIC FINITE ELEMENTS; BACK-SCATTERED; BULK SOILS; CLAY SOIL; CRACK DISTRIBUTION; CRACK MODEL; CRACK VOLUME; CRACK WIDTH; EXPANSIVE SOILS; FAST NEUTRONS; FINITE ELEMENT MODELS; LINEAR CALIBRATION; MARYLAND; MEASURING DEVICE; NUMERICAL SIMULATION; PROBE MEASUREMENTS; REALISTIC MODEL; SOIL CRACKING; SOIL MASS; SOIL WATER CONTENT; THERMALISATION; VOID RATIOS; WATER CONTENT MEASUREMENTS;

CLAY; COMPUTER SIMULATION; CRACKS; FINITE ELEMENT METHOD; GEOLOGIC MODELS; NEUTRONS; PROBES; SOIL MOISTURE; SOIL STRUCTURE INTERACTIONS; WATER CONTENT;

SOIL SURVEYS;

CALIBRATION; CRACK PROPAGATION; CRACKING; EXPANSIVE SOIL; FINITE ELEMENT METHOD; NEUTRON PROBE; SOIL WATER; SPATIAL DISTRIBUTION; WATER CONTENT;

EID: 79955760225     PISSN: 01496115     EISSN: None     Source Type: Journal    
DOI: 10.1520/GTJ102828     Document Type: Conference Paper

References (24)

1. Amoozegar, A., Martin, K. C., and Hoover, M. T., 1989, "Effect of Access Hole Properties on SoilWater Content Determination by Neutron Thermalisation," Soil Sci. Soc. Am. J.,Vol. 53, pp. 330-335. (Pubitemid 19307453)
2. Corbeels, M., Hartmann, R., Hofman, G., and Van Cleemput, O., 1999, "Field Calibration of a Neutron Moisture Meter in Vertisols," Soil Sci. Soc. Am. J., Vol. 63, pp. 11-18. (Pubitemid 29172727)
3. Elder, A. N. and Rasmussen, T. C., 1994, "Neutron Probe Calibration in Unsaturated Tuff," Soil Sci. Soc. Am. J., Vol. 58(5), pp. 1301-1307.
4. Fityus, S. and Buzzi, O., 2009, "The Place of Expansive Clays in the Framework of Unsaturated Soil Mechanics," Appl. Clay Sci., Vol. 43, pp. 150-155.
5. Fityus, S. G. and Smith, D. W., 2004, "The Development of a Residual Soil Profile from a Mudstone in a Temperate Climate," Eng. Geol. (Amsterdam), Vol. 74(1-2), pp. 39-56. (Pubitemid 38728252)
6. Fityus, S. G., Smith, D. W., and Allman, M. A., 2004, "Expansive Soil Test Site near Newcastle," J. Geotech. Geoenviron. Eng., Vol. 130(7), pp. 686-695. (Pubitemid 38957916)
7. Greacen, E. L. and Hignett, C. T., 1979, "Sources of Bias in the Field Calibration of a Neutron Meter," Austral. J. Soil Res., Vol. 17, pp. 405-415. (Pubitemid 10256321)
8. Greacen, E. L. and Schrale, G., 1976, "The Effect of Bulk Density on Neutron Meter Calibration," Austral. J. Soil Res.,Vol. 14(2), pp. 159-169.
9. Grismer, M. E., Bali, K. M., and Robinson, F. E., 1995, "Field- Scale Neutron Probe Calibration andVariance Analysis for Clay Soil," J. Irrig. Drain. Eng., Vol. 121(5), pp. 354-362. (Pubitemid 26441534)
10. Haahr, V. and Ølgaard, P. L., 1965, "Comparative Experimental and Theoretical Investigations of the Neutronic Method for Measuring the Water Content in Soil," Symp. on Use of Isotope and Radiation in Soil-Plant Nutrition Studies, Ankara, June 28-July 2, IAEA, Vienna, pp. 129-147.
11. Haines,W. B., 1923, "The Volume Changes Associated with Variations of Water Content in Soil," J. Agric. Sci. Vol. 13, pp. 296-310.
12. Hanafy, E. A. D. E., 1991, "Swelling/Shrinkage Characteristic Curve of Desiccated Expansive Clays," Geotech. Test. J., Vol. 14(2), pp. 206-211.
13. Huang, W. and Fityus, S. G., 2008, "Numerical Study of Neutron Probe Measurement ofWater Content in Expansive Soils," Proceedings of the 12th International Conference of International Association for Computer Methods and Advances in Geomechanics (IACMAG) (CD-ROM), Goa, India, Oct. 1-6.
14. Iliffe, C. E., 1982, An Introduction to Nuclear Reactor Physics, Manchester University Press, England.
15. Jarvis, N. J. and Leeds-Harrison, P. B., 1987, "Some Problems Associated with the Use of the Neutron Probe in Swelling/ Shrinking Clay Soils," J. Soil Sci., Vol. 38, pp. 149-156.
16. Jayawardane, N. S., Meyer, W. S., and Barrs, H. D., 1984, "Moisture Measurement in a Swelling Clay Soil Using Neutron Moisture Meters," Austral. J. Soil Res., Vol. 22, pp. 109-117. (Pubitemid 15251589)
17. Kodikara, J., Barbour, S. L., and Fredlund, D. G., 2002, "Structure Development in Surficial Heavy Clay Soils: A Synthesis of Mechanisms," Austral. Geomech., Vol. 37(1), pp. 25-40.
18. Li, J., Smith, D. W., and Fityus, S. G., 2003b, "The Effect of a Gap Between the Access Tube and the Soil During Neutron Probe Measurements," Austral. J. Soil Res., Vol. 41(1), pp. 151-164. (Pubitemid 36260818)
19. Li, J., Smith, D. W., Fityus, S. G., and Sheng, D., 2003a, "Numerical Analysis of Neutron Moisture Probe Measurement," Int. J. Geomech., Vol. 3(1), pp. 11-20. (Pubitemid 38933632)
20. Moe, H., Fityus, S. G., and Smith, D. W., 2003, "Study of a Cracking Network in a Residual Clay Soil," Proceedings of UNSATASIA 2003: Second Asian Unsaturated Soils Conference, Osaka, Japan, April 15-17, D. Karube, A. Iizuka, S. Kato, K. Kawai, and K. Tateyama, Eds., Organizing Committee of UNSATASIA 2003, Osaka, Japan, pp. 149-154.
21. Ølgaard, P. L., 1965, "On the Theory of the Neutronic Method for Measuring theWater Content in Soil," Risö Report No. 97, Dan- ish Atomic Energy Commission Research Establishment, Roskilde, Denmark.
22. Ritchie, A. I. M. and Wilson, D. J., 1984, "Investigation of the Response of a Neutron Moisture Meter Using a Multigroup, Two- Dimensional Diffusion Theory Code," Report No. AAEC/E579, Australian Atomic Energy Commission Research Establishment.
23. Tripathy, S., Subba Rao, K. S., and Fredlund, D. G., 2002, "Water Content-Void Ratio Swell-Shrink Paths of Compacted Expansive Soils," Can. Geotech. J., Vol. 39, pp. 938-959.
24. Wells, T. and Fityus, S., 2007, "The Influence of Desiccation Cracking on Volumetric Moisture Contents Measured by the Neutron Probe," Proc. Third Asian Conf. on Unsaturated Soils, Nanjing, China, April 2007, Z. Yin, J. Yuan, and A. F. Chiu, Eds., Science Press, Beijing, China, pp. 593-598.