I have added most of Tim’s published technical papers to our on line library.  Most of Tim’s published works cover topics such as karst terrain, ground improvement, and augered cast-in-place piles.  Links to each paper are below and on the Publications page.

Siegel, T.C. and McGillivary, A. (2009). “Interpreted Residual Load in an Augered Cast-in-Place Pile”, Proceedings, Annual DFI Conference, Kansas City, MO.

Siegel, T.C. and NeSmith, W.M. (2009). “Shortcomings of the Davisson Offset Limit Applied to Axial Compressive Load Tests on Cast-in-Place Piles”, 2009 International Foundation Congress and Equipment Expo, Contemporary Topics in Deep Foundations, Geotechnical Special Publication No. 185, ASCE, pp. 568-574.

Fellenius, B. H. and Siegel, T.C. (2008). “Pile Drag Load and Downdrag in a Liquefaction Event”, Journal of Geotechnical and Environmental Engineering, ASCE, Vol 134, No. 9.

Siegel, T.C., NeSmith, W.M., and NeSmith, W.M. (2008). “Increase in Cyclic Liquefaction Resistance of Sandy Soil Due to Drilled Displacement Piles”, Proceedings, Earthquake Engineering and Soil Dynamics IV Conference, Sacramento, CA.

Bivens, M.J. and Siegel, T.C. (2007). “Case Histories of Micropiles in Karst: The Influence of Installation on Design and Performance”, Contemporary Issues in Deep Foundations, GeoDenver Conference, Geotechnical Special Publication No. 158, ASCE.

Siegel, T.C., Cargill, P.E., and NeSmith, W.N. (2007). “CPT Measurements Near Drilled Displacement Piles”, Proceedings, FMGM, Boston, MA.

Siegel, T.C., NeSmith, W.M., NeSmith, W.M., and Cargill, P.E. (2007), “Ground Improvement Resulting From Installation of Drilled Displacement Piles”, 32nd DFI Annual Conference, Colorado Springs, CO.

Camp, W.M. and Siegel, T.C. (2006). “Failure of a Column-Supported Embankment Over Soft Ground”, Proceedings, Fourth International Conference on Soft Soils, Vancouver, B.C.

Siegel, T.C. and Cargill, P.E. (2005). “Use of the Cone Penetration Test for Geotechnical Site Characterization in Clay-Mantled Karst”, Proceedings, 10th Multi-Disciplinary Conference on Sinkholes and the Engineering and Environmental Impacts of Karst, San Antonio, TX.

Siegel, T.C., Caskey, J.M., and Huckaba, D.A. (2005). “Combination of Ground Improvement Techniques for Support of Shallow Foundation in Karst”, Innovations in Grouting and Soil Improvement, GeoFrontiers Conference, Geotechnical Special Publication No. 136, ASCE.

Siegel, T.C., Chnag, C.C., and Loizias, L. (2003). “Seismic Stability of Rock Islands for Bridge Protection in Coastal South Carolina”, Proceedings, European Conference of Soil Mechanics and Geotechnical Engineering, Prague, Czech Republic.

Siegel, T.C. and Mackiewicz, S.M. (2003). “Failure of Axially Loaded Augered Cast-in-Place Piles in Coastal South Carolina”, Proceedings, Soil and Rock America: 12th Panamerican Conference on Soil Mechanics and Geotechnical Engineering, Boston, MA.

Siegel, T.C., Camp, W.M., Chnag, C.C., and Loizias, L. (2002). “Site Response of Improved ground in the Coastal Eastern United States”, Proceedings, 4th International Conference on Ground Improvement Techniques, Kuala Lumpur, Malaysia.

Siegel, T.C. and McCrackin, D.W. (2001). “Geotechnical Characterization and Modeling of a Shallow Karst Bedrock Site. Proceedings, 8th Multidisciplinary Conference on Sinkholes and the Engineering and Environmental Impacts of Karst, Louisville KY.

Siegel, T.C., Cargill, P.E., and McCrackin, M.W. (2001). “Geosynthetic Reinforcement Above Sinkholes to Protect Landfill Liners”, Proceedings, 8th Multidisciplinary Conference on Sinkholes and the Engineering and Environmental Impacts of Karst, Louisville KY.

Siegel, T.C., Belgeri, J.J., and McCrackin, M.W. (2001). “Case History of East Tennessee Karst: Static Stability of Some Shallow Caves”, Proceedings, 2001: A Geo-Odyssey – Foundations and Ground Improvement, Geotechnical Special Publication No. 113, Blacksburg, VA.