William Gilbert Sebudde Kaggwa

Senior Lecturer

Phone: +61 8 830 35471
Email: wkaggwa@civeng.adelaide.edu.au
Room: N145, Engineering North Building

Personal | Publications | Research | Teaching | Consulting

Personal

Academic Qualifications

BSc(Eng), Makerere University 1979, Uganda; MEngSc, University of Sydney, 1981; PhD, University of Sydney, 1989.

Membership and Affiliations

Member, Institution of Engineers Australia; Chartered Professional Engineer (CP.Eng);
Member, Australian Geomechanics Society;
Member, International Society for Soil Mechanics and Geotechnical Engineering.

Area of Specialisation:

Geotechnical Engineering

Experience

Dr Kaggwa has worked in the Department of Civil & Environmental Engineering at Adelaide University since 1990. Prior to that he worked for two years as a Research Associate in the Centre for Geotechnical Research at the University of Sydney. He has been a visiting Research Fellow at Makerere University, Uganda. He is active in research and consulting. He has acted as a consultant on soil and rock investigations for slope stability, assessment of existing embankments and dams owned by Transport SA, SA Water, and Flinders Power Pty Ltd.

Publications

Refereed Journal Publications

1. Kaggwa, W S (2005). "Probability based diagnosis of defective geotechnical engineering structures". Constructed Facilities J., ASCE, Vol. 19, No. 4, pp. 308-315.

2. Jaksa, M. B., Goldsworthy, J. S., Kaggwa, W. S., Fenton, G. A., Griffiths, D. V., Kuo, Y. L. and Poulos, H. G. (2005). Towards Reliable and Effective Site Investigations. Géotechnique, Vol. 55, No. 2, pp. 109-121.

3. Jaksa, M. B., Kaggwa, W. S. and Brooker, P. I. (2002). An Improved Statistically Based Technique for Evaluating the CPT Friction Ratio. Geotechnical Testing J., ASTM, Vol. 25, No. 1, pp. 61-69.

4. Jaksa, M. B., Kaggwa, W. S., Woodburn, J. A. and Sinclair, R. (2002). Influence of Large Gum Trees on the Soil Suction Profile in Expansive Soils. Australian Geomechanics, Vol. 37, No. 1, pp. 23-33.

5. Cheong, M. T. and Kaggwa, W. S. (2002). Settlement Prediction - How Much is it a Matter of Luck? Australian Geomechanics, Vol. 37, No. 1, pp. 25-31.

6. Jaksa, M. B., Brooker, P. I. and Kaggwa, W. S. (1999). Closure to Inaccuracies Associated with Estimating Random Measurement Errors. Journal of the Geotechnical and Geo-environmental Engineering Division, ASCE, 125(1), 81.

7. Kaggwa, W. S. and Ossa, T. G. (1999). Determination of the Equivalent Effective Stress State for Desiccated Soils. Australian Geomechanics, 34(4), 5-15.

8. Jaksa, M.B., Brooker, P.I. and Kaggwa, W.S. (1997). Inaccuracies Associated with Estimating Random Measurement Errors. Journal of the Geotechnical and Geoenvironmental Engineering, The Geo-Institute of American Society of Civil Engineering, 123(5), 393-401.

9. Kaggwa, W.S. (1997). Application of Probabilistic Reasoning in the Diagnosis of Geotechnical Problems. Australian Geomechanics, 32(4), 25-37.

10. Kaggwa, W.S. and Elchalakani, M. (1997). Significance of Geometry of Backfill on the Lateral Earth Pressure Distribution on Retaining Walls that Support Cohesive Soils. Civil Engineering Transactions, IEAust, CE39(4), 77-85.

11. Kaggwa, W.S. (1996), A case for Flexibility in Geomechanics Education for the Practitioner, Australian Geomechanics, December, Vol. 30, pp. 25 - 28.

12. Jaksa, M.B. and Kaggwa, W.S. (1994). Geotechnical Engineering software recently developed at the University of Adelaide, Australian Geomechanics, No. 26, October, pp. 33-38.

13. Kaggwa, W.S. (1994). Additional Movements of Heavily Loaded Rigid Foundations due to Moisture Changes in Expansive Soils, a Simplified Analysis. Australian Geomechanics, 26(2), 74-79.

14. Kaggwa, W.S. (1992): On In-situ Stresses, Soil Suction, Undrained Shear Strength and Ko of Expansive Clays from Adelaide City, Civil Engineering Transactions, IEAust, Vol. CE34, No.2, April.

15. Kaggwa, W.S., Booker, J.R. and Carter, J.P. (1991). Residual strains in calcareous sand due to irregular cyclic loading, Journal of Geotechnical Engineering Division, ASCE, Vol. 117, GT2, pp. 201-218.

Refereed Conference Publications

1. Goldsworthy, J. S., Jaksa, M. B., Kaggwa, G. W. S., Fenton, G. A., Griffiths, D. V. and Poulos, H. G. (2005). Reliability of Site Investigations Using Different Reduction Techniques for Foundation Design. Proc. 9th Int. Conf. on Structural Safety and Reliability, Rome, July. Accepted. To appear.

2. Goldsworthy, J. S., Jaksa, M. B., Kaggwa, W. S., Fenton, G. A., Griffiths, D. V. and Poulos, H. G. (2004). Cost of Foundation Failures Due to Limited Site Investigations. Proc. Int. Conf. On Structural and Foundation Failures, Singapore, August, pp. 398-409.

3. Goldsworthy, J. S., Jaksa, M. B., Kaggwa, W. S., Fenton, G. A., Griffiths, D. V., Poulos, H. G. and Kuo, Y. L. (2004). The Influence of Site Investigations on the Design of Pad Footings. Proc. 9th Australia New Zealand Conference on Geomechanics, Auckland, Vol. 1, pp. 282-288.

4. Chok, Y. H., Kaggwa, W. S., Jaksa, M. B. and Griffiths, D. V. (2004). Modelling the Effects of Vegetation on Stability of Slopes. Proc. 9th Australia New Zealand Conference on Geomechanics, Auckland, Vol. 1, pp. 391-397.

5. Kuo, Y. L., Jaksa, M. B., Kaggwa, W. S., Fenton, G. A., Griffiths, D. V. and Goldsworthy, J. S. (2004). Probabilistic Analysis of Multi-layered Soil Effects on Shallow Foundation Settlement. Proc. 9th Australia New Zealand Conference on Geomechanics, Auckland, Vol. 2, pp. 541-547

6. Jaksa, M. B., Kaggwa, W. S., Fenton, G. A. and Poulos, H. G. (2003). A Framework for Quantifying the Reliability of Geotechnical Investigations. Applications of Statistics and Probability in Civil Engineering, ICASP9, A. Der Kiureghian, S. Madanat and J. M. Pestana (eds.), San Francisco, Millpress, Rotterdam, Vol. 2, pp. 1285-1291.

7. Kaggwa, W. S., Cheong, M. T. and Jaksa, M. B. (2002). Assessment of the Luck Associated With the Settlement Predictions That Are Based on Elastic Theory. Proc. Int. Conf. on Probabilistics in GeoTechnics: Technical and Economic Risk Estimation, R. Pöttler, H. Klapperich and H. Schweiger (eds.), Graz, Austria, United Engineering Foundation, New York, pp. 79-86.

8. Kaggwa, W.S. (2000). Determination of the spatial variability of soil design parameters and its significance in geotechnical engineering analyses, Proceedings, John Booker Memorial Symposium, 16-17 November, Sydney, Balkema 681 - 703

9. Kaggwa, W. S. and Stassinopoulos, N. (2000). Diagnosis of a Defective Crib Retaining Wall Using a Probabilistic Approach. Proceedings Int. Conf. On Geot. And Geol. Engrg, GeoEng 2000 (On CD).

10. Kaggwa, W. S. and Ossa, T. (1999), High Pressure Triaxial Testing of Desiccated Keswick Clay. Proceedings 8th Australia New Zealand Conference on Geomechanics, Hobart, February 14-18, Vol. 2, pp. 841 - 847.

11. Jaksa, M. B., Brooker, P. I. and Kaggwa, W. S. (1999). Experimental Evaluation of the Scale of Fluctuation of a Stiff Clay. Proceedings 8th Int. Conf. On the Application of Statistics and Probability, R. E. Melchers and M. G. Stewart (eds.), Sydney, A. A. Balkema, Rotterdam, (Publ. 2000) Vol. 1, pp. 415-422.

12. Kaggwa, W.S. and Elchalakani, M. (1996). Effect of limited backfill on the lateral pressure distribution on cantilever retaining walls in clays, Proceedings, Seventh Australia - New Zealand Geomechanics Conference, Adelaide, July 1 - 5, pp. 649 - 654.

13. Kaggwa, W.S., Jha, R.K. and Jaksa, M.B. (1996). Use of dilatometer and cone penetration tests to estimate settlements of footings on calcareous sand, Proceedings, Seventh Australia - New Zealand Geomechanics Conference, Adelaide, July 1 - 5, pp. 909 - 914.

14. Jaksa, M.B., Brooker, P.I. and Kaggwa, W.S. (1996). The influence of spatial variability on geotechnical engineering design, Proceedings, Seventh Australia - New Zealand Geomechanics Conference, Adelaide, July 1 - 5, pp. 526 - 531.

15. Jaksa, M.B., and Kaggwa, W.S. (1996). Generalised geotechnical engineering properties of the Keswick and Hindmarsh Clays, Proceedings, Seventh Australia - New Zealand Geomechanics Conference, Adelaide, July 1 - 5, pp. 897 - 902.

16. Jaksa, M.B., Kaggwa, W.S. and Gamble, S.K. (1996). CATIGE for Windows, - A computer aided teaching suite for geotechnical engineering, Proceedings, Seventh Australia - New Zealand Geomechanics Conference, Adelaide, July 1 - 5, pp. 976 - 980.

17. Meyers, A.G., Priest, S.D. and Kaggwa, W.S. (1996). The determination of rock mass strength for engineering design, Proceedings, Seventh Australia - New Zealand Geomechanics Conference, Adelaide, July 1 - 5, pp. 209 - 215.

18. Jaksa, M.B., Brooker, P.I. and Kaggwa, W.S. (1996), Modelling the spatial variability of the undrained shear strength of clay soils using geostatistics, Proceedings of the Fifth International Geostatistics Congress, Wollongong '96, 22 - 27 September, pp.

19. Doherty, L.E., Kaggwa, W.S. and Warner, R.F. (1996), Conceptual design and creativity in the engineering curriculum, Proceedings of the IASS Symposium on Conceptual Design of Structures, Stuttgart, October 7 - 11, pp. 482 - 489.

20. Kaggwa, W.S. and Morgan, P.J. (1995). Numerical modelling of loaded foundations undergoing soil swelling and shrinkage, Buildings & Structures Subject to Ground Movement, Newcastle, Feb. 5 - 7, pp. 43 - 52.

21. Kaggwa, W.S., Jaksa, M.B. and Jha, R.K. (1995). Development of automated dilatometer and cone penetration tests at the University of Adelaide, Int. Conf. on Advances in Site Investigation Practice, Institution of civil Engineers, U.K., London, March 30 - 31.

22. Elchalakani, M. and Kaggwa, W.S. (1995). Numerical Modelling of Retaining Walls with Limited Backfill, Eleventh African Regional Conference on Soil Mechanics and Foundation Engineering, Vol.2, Cairo, December 5 - 11, pp.576-584.

23. Herraman, R.A., Kaggwa, W.S. and Washyn, R. (1994). Investigation into differential movement associated with a reinforced earth abutment railway overpass, Austroads 1994 Bridges Conference, Melbourne, February 16 - 18, pp. 53.1 - 9.

24. Chris, C.B., O'Neil, B.K., Middleberg, A.P.J. and Kaggwa, W.S. (1994). Prediction of the pressure drop across a compressible packed bed of chromatography resin, Conference Proceedings CHEMECA '94 Process Technology Australia's Opportunity, Perth, 25 - 28 September, pp. 133 - 140.

25. Jaksa, M.B., Kaggwa, W.S. and Brooker, P.I. (1993). Geostatistical modelling of the spatial variation of the shear strength of a stiff, overconsolidated clay, Conference on Probabilistic Methods in Geotechnical Engineering, 10 - 12 February, Canberra, Australia.

26. Kaggwa, W.S. and Jaksa, M.B. (1992): Normalised Shear Strength and Compressibility Characteristics of Adelaide Expansive Clay, Pro. 6th. ANZ Geomechanics Conference, Christchurch, 3 - 6 February, pp. 330-335.

27. Jaksa, M.B. and Kaggwa, W.S. (1992): Degree of Saturation of the Keswick Clay Within the Adelaide City Area Above the General Groundwater Table, Pro. 6th. ANZ Geomechanics Conference, Christchurch, 3 - 6 February, pp. 336-341.

28. Kaggwa, W.S. and Booker, J.R. (1991). Model of Cyclic Behaviour of Calcareous Sand and its Application to Wave Loading, Pro, 7th. Int. Conf. on Computer Methods and Advances in Geomechanics, Cairns, 6 - 10 May, pp. 753-758, G. Beer, J.R. Booker and J.P. Carter, ed.

Research

Current research interests

• Diagnosis and assessment of defective geotechnical structures using probabilistic approaches.
• Incorporating spatial variability of soils in geotechnical modelling.
• Evaluation of prediction uncertainty associated with non-linear soil models.

Teaching

Courses Taught in 2005

• Civil Engineering Research Project N
• Geotechnical Engineering Design III
• Engineering Modelling and Analysis II
• Civil Engineering Design I

Courses - The Principal Lecturer/Co-ordinator

• Geotechnical Modelling
• Advanced Foundation Engineering
• Geotechnical Engineering Design II
• Technology and the Built Enviro
• Civil Engineering Design Project
• Geotechnical Engineering IV
• Geotechnical Engineering III
• Geotechnical Engineering II

Consulting Activities