FOUNDATION ENGINEERING

Foundation engineering is the subject that studies the design of geotechnical systems directly or indirectly related to the support of the loads of buildings, bridges, towers, silos and other structures. Foundations and other geotechnical systems must be designed in such a way that they are safe and that they serve their intended function at the lowest possible cost. Of all the geotechnical systems used in foundation solutions, Prof. Salgado is particularly interested in shallow foudnations, deep foundations and slopes. Prof. Salgado and the researchers in his group have been conducting research on both stability (related to safety) and deflections (related to serviceability) of foundations and other geotechnical systems.

Specific Research Interests

• Cone Penetration Test Interpretation
• Design and Analysis of Axially Loaded Piles
• Design and Analysis of Laterally Loaded Piles
• Design and Analysis of Shallow Foundations
• Stability of Geotechnical Structures using Limit Analysis
• Dilatometer testing

Cone Penetration Test Interpretation

1. Salgado, R., Boulanger, R. and Mitchell, J.K. (1997).  "Lateral Stress Effects on CPT Liquefaction Resistance Correlations."  Journal of Geotechnical and Geoenvironmental Engineering, ASCE, 123(8), August, 726-735.

2. Salgado, R., Mitchell, J.K., and Jamiolkowski, M. (1998).  "Calibration Chamber Size Effects on Penetration Resistance in Sand." Journal of Geotechnical and Geoenvironmental Engineering, ASCE, Vol. 124 (9), September, 878-888.

3. Salgado, R. and Mitchell, J.K. (1994).  "Extra-terrestrial Soil Property Determination by CPT." Eighth International Conference on Computer Methods and Advances in Geomechanics, Morgantown, May 22-28, H. Siriwardane and M. M. Zaman (eds.), Vol. 2, 1781-1788.

4. Salgado, R. (1995).  "Design of Deep Foundations in Sands Based on CPT Results."  X Panamerican Conference on Soil Mechanics and Foundation Engineering, Vol. 3, November, 1261-1274, Guadalajara, Mexico.

5. Salgado, R., Boulanger, R. and Mitchell, J.K. (1997).  "Lateral Stress Effects on CPT Liquefaction Resistance Correlations."  Journal of Geotechnical and Geoenvironmental Engineering, ASCE, 123(8), August, 726-735.

6. Bandini, P. and Salgado, R. (1998).  "Pile Design Based on Penetration Test Results."  First International Conference on Site Characterization, Vol. 2, April, 967-976, Atlanta.

7. Lee, J. H. and Salgado, R. (2001).  "Use of CPT Results for Pile Base Resistance in Granular Soils."  15th International Conference on Soil Mechanics and Geotechnical Engineering, Istanbul, Turkey, accepted for publication.

8. Carraro, J. A., Bandini, P. and Salgado, R. (2002). "Evaluation of Liquefaction Resistance of Clean and Silty Sands Based on CPT Cone Penetration Resistance." Journal of Geotechnical and Geoenvironmental Engineering, ASCE, accepted for publication.

9. Lee, J., Salgado, R. and Paik, K.  "Estimation of the Load Capacity of Pipe Piles in Sand Based on CPT Results."  Journal of Geotechnical and Geoenvironmental Engineering, ASCE, in press.

Design and Analysis of Axially Loaded Piles

1. Salgado, R., Jamiolkowski, M. and Mitchell, J.K. (1998). "Penetration Resistance in Sands: Analysis and Applications to Liquefaction Potential Assessment and Estimation of Pile Base Resistance." Rivista Italiana di Geotecnica, accepted for publication in Issue 4, September/December XXXII n.4-1998, 33 pp.

2. Lee, J. and Salgado, R. (1999).  "Determination of Pile Base Resistance in Sands." Journal of Geotechnical and Geoenvironmental Engineering, ASCE, Vol. 125(8), August, 673-683.

3. Lee, J. and Salgado, R. (2000).  "Analysis of Calibration Chamber Plate Load Testing."  Canadian Geotechnical Journal, Feb., 37(1), 43 pp.

4. Paik, K. and Salgado, R. (2002).  "Determination of Bearing Capacity of Open-Ended Piles in Sand."  Journal of Geotechnical and Geoenvironmental Engineering, ASCE, in press.

5. Paik, K., Salgado, R. Lee, J and Kim, B. (2002).  "The Behavior of Open- and Closed-ended Piles Driven into Sands." Journal of Geotechnical and Geoenvironmental Engineering, ASCE, in press.

6. Lee, J., Salgado, R. and Paik, K.  "Estimation of the Load Capacity of Pipe Piles in Sand Based on CPT Results."  Journal of Geotechnical and Geoenvironmental Engineering, ASCE, in press.

7. Salgado, R., Mitchell, J.K., and Jamiolkowski, M. (2001).  "Calibration Chamber Size Effects on Penetration Resistance in Sand." Journal of Geotechnical and Geoenvironmental Engineering, ASCE, Vol. 127(7), September, 629-630.

8. Ghionna, V.N., Jamiolkowski, M., Pedroni, S. and Salgado, R. (1994).  "The Tip Displacement of Drilled Shafts in Sands."  Settlement '94, A. T. Yeung. and G. Félio (eds.), Vol. 2, June, 1039-1057, Geotechnical Engineering Division, ASCE, Texas A&M University, College Station, TX.

9. Salgado, R. (1995).  "Design of Deep Foundations in Sands Based on CPT Results."  X Panamerican Conference on Soil Mechanics and Foundation Engineering, Vol. 3, November, 1261-1274, Guadalajara, Mexico.

10. Bandini, P. and Salgado, R. (1998).  "Pile Design Based on Penetration Test Results."  First International Conference on Site Characterization, Vol. 2, April, 967-976, Atlanta.

11. Lee, J. and Salgado, R. (1998).  "Loading Response of Piles Bearing in Sand." XI Panamerican Conference on Soil Mechanics and Foundation Engineering, Iguassu Falls, Brazil, accepted for publication, 25 pp.

12. Lee, J. and Salgado, R. (1999).  "Pre-Failure Loading Response of Foundations on Sand."  Second International Symposium on Pre-Failure Deformation Characterization of Geomaterials, Turin, Italy, September 28-30, Vol. 1,  pp. 667-674.

13. Lee, J. H. and Salgado, R. (2001).  "Use of CPT Results for Pile Base Resistance in Granular Soils."  15th International Conference on Soil Mechanics and Geotechnical Engineering, Istanbul, Turkey, accepted for publication.

14. Lee, J. H. and Salgado, R. (2001).  "Non-linear Finite Element Analysis of Calibration Chamber Plate Load Tests for Sands."  Proceedings of the 10th International Conference on Computer Methods and Advances in Geomechanics, Tucson, January, 941-946.

15. Paik, K. and Salgado, R.  "Influence of Pile Installation Method on Pipe Pile Behavior in Sands."  Geotechnical Testing Journal, ASTM, in press.

Design and Analysis of Laterally Loaded Piles

Design and Analysis of Shallow Foundations

1. Salgado, R., Bandini, P. and Karim, A. (2000).  "Shear Strength and Stiffness of Silty Sands." Journal of Geotechnical and Geoenvironmental Engineering, ASCE, 126(5), 37 pp.

2. Lee, J. and Salgado, R. (2002).  "The Estimation of the Settlement of Footings in Sand." International Journal of Geomechanics, 1(2), 175-192.

Stability of Geotechnical Structures using Limit Analysis

1. Yu, H.S., Salgado, R., Sloan, S. and Kim, J.  (1998).  "Limit Analysis vs. Limit Equilibrium for Slope Stability Assessment." Journal of Geotechnical and Geoenvironmental Engineering, ASCE, 124(1), January, 1-11.

2. Kim, J., Salgado, R. and Yu, H.S. (1999).  "Limit Analysis of Soil Slopes Subjected to Porewater Pressures."  Journal of Geotechnical and Geoenvironmental Engineering, ASCE, Vol. 125, No. 1, January, 49-58.

3. Kim, J., Salgado, R. and Lee, J. (2002).  "Limit Analysis of Complex Soil Slopes."  Journal of Geotechnical and Geoenvironmental Engineering, ASCE, 128(7), 546-557.

4. Loukidis, D., Bandini, P. and Salgado, R. "Comparative Study of Limit Equilibrium, Limit Analysis and Finite Element Analysis of the Seismic Stability of Slopes."  Geotechnique, in press.

5. Yu, H.S., Salgado, R., Sloan, S. and Kim, J.  (1999).  "Limit Analysis vs. Limit Equilibrium for Slope Stability Assessment." Journal of Geotechnical and Geoenvironmental Engineering, ASCE, 125(10), January, 915-918.

6. Bandini, P., Salgado, R., and Harb, J. A. (2001).  "Análise Limite para Taludes com Perfis Complexos de Solos."  Conferência Brasileira sobre Estabilidade de Encostas, III COBRAE, Rio de Janeiro, Brazil, Vol. 1, 3rd Session "Analise de Estabilidade", pp. 397-402.

Dilatometer Testing

1. Fretti, C., Lo Presti, D., and Salgado, R. (1993).  "The Research Dilatometer: In-situ and Calibration Test Results."  Rivista Italiana di Geotecnica, XXVI(4), October, 237-243.