Kenneth H. Stokoe, Ph.D.

Department of Civil Engineering
The University of Texas at Austin
Austin, TX 78712
Phone 512-471-4929
FAX 512-471-6548


B. S., University of Michigan, 1966
M. S., University of Michigan, 1967
Ph. D., University of Michigan, 1972


ACADEMIC EXPERIENCE 

University of Texas at Austin, Jennie C. and Milton T. Graves

      Chair in Engineering, 1/00 to present

University of Texas at Austin, Cockrell Family Regents

      Chair No. 9, 9/97 to 12/99

University of Texas at Austin, Brunswick-Abernathy Regents

      Professor, 9/85 to 8/97

University of Texas at Austin, Professor, 9/83 to 8/85

University of Texas at Austin, Associate Professor, 9/78 to 8/83

University of Texas at Austin, Assistant Professor, 9/73 to 8/78

University of Massachusetts, Assistant Professor, 1/72 to 8/73

University of Michigan, Instructor, 9/71 to 12/71

University of Michigan, Teaching Fellow, 1/70 to 6/70

 

PROFESSIONAL REGISTRATION

Registered Professional Engineer: State of Texas

SUMMARY OF EXPERIENCE

Dr. Stokoe has been working in the areas of in situ seismic measurements, laboratory measurements of dynamic material properties, and dynamic soil-structure interaction for the past 38 years.  He was instrumental in developing the crosshole seismic method for in-situ shear wave velocity measurement to the method that has been adopted as the standard by the American Society for Testing and Materials (ASTM D4428M) and the method that is used by geotechnical engineering firms worldwide.  This method is also specified by the U.S. Nuclear Regulatory Commission (NRC) in Regulation Guide 1.132 as a field seismic method to evaluate shear and compression wave velocity profiles.  He has also developed a combined resonant column and torsional shear (RCTS) system which is now used by many universities and private firms in the U.S., Europe and Asia to evaluate dynamic material properties.  The RCTS system is also specified, in general terms, by the NRC for existing or potential sites of nuclear power plants in Regulation Guide 1.138 as a testing system to evaluate the nonlinear dynamic properties of geotechnical materials.  In the round of early site permits that are now underway in the United States, this RCTS system is the only one being used to evaluate dynamic soil properties by geotechnical engineering firms.

In the last 35 years, Dr. Stokoe has conducted major research efforts in the areas of:  (1) seismic testing of pavements, runways and geotechnical systems, and (2) laboratory evaluation of soil stiffness under cyclic and dynamic loading conditions.  He and his colleagues have developed the Spectral-Analysis-of-Surface-Waves (SASW) method for testing geotechnical and pavement systems and structural components.  Dr. Stokoe has conducted major field studies using the SASW method to investigate: (1) earth dams for the U.S. Bureau of Reclamation, the Icelandic government and Delft Geotechnical Laboratories, (2) debris slides for the U.S. Geological Survey and the Italian government, and (3) granular soils that liquefied during previous earthquakes with support from the U.S. Geological Survey and U.S. National Science Foundation.  The SASW method is also specified by NRC in Regulation Guide 1.132 as a field seismic method that can be used to evaluate shear wave velocity profiles at existing or potential sites of nuclear power plants.  Under NQA-1 requirements, he has performed extensive SASW investigations for the U.S. Department of Energy (DOE) at the proposed geologic repository for high-level radioactive waste at Yucca Mountain, Nevada and at the location of the Waste Treatment Plant where high-level radioactive waste will be processed in Hanford, Washington.  He has also conducted extensive seismic tests for DOE under NQA-1 requirements using: (1) the crosshole method at Los Alamos National Laboratories, New Mexico, and the Y-12 National Security Complex, Oak Ridge, Tennessee, and (2) a modified downhole method to perform deep test at the Waste Treatment Plant in Hanford, Washington (to a depth of 1400 ft) and at the Yucca Mountain Site in Nevada (to a depth of 3000 ft).

Dr. Stokoe has participated in numerous demonstration projects involving SASW testing of airport runways and taxiways over the past 23 years.  Testing has been performed at McDill, Homestead, and Tyndell Air Force Bases.  Testing was also performed at the Cannon International Airport in Reno, Nevada and the Sonoma County Airport in Santa Rosa, California.  More recently, Dr. Stokoe has applied the SASW method (combined with crosshole tests) at John F. Kennedy Airport to evaluate changes beneath runways and taxiways due to micro-tunneling activities.  He has adapted the SASW method for testing concrete structural elements to evaluate damage and has been awarded Patent No. SN 071 462, 404 for In Situ Testing with Surface Seismic Waves of Materials Having Properties that Change with Time.

Over the past 14 years, Dr. Stokoe has been leading  the development of the Rolling Dynamic Deflectometer (RDD) with funding from Texas DOT and federal agencies.  The purpose of this device is to perform continuous profiles of highway and airport pavement stiffnesses “on-the-fly.”  This deflectometer operates at speeds around 2 km/hr (about 1.2 mph) and presently represents a “one-of-a-kind” piece of equipment.  Most recently, the RDD has been used to profile runways at the Dallas-Fort Worth (DFW) Airport, Portland Airport, Seattle-Tacoma International Airport, Atlanta International Airport, various smaller airports in Texas and numerous highway pavement sections in Texas.

The laboratory studies with which Dr. Stokoe has been involved can be divided into two groups.  The first group has dealt with the use of resonant column/torsional shear (RCTS) equipment to evaluate the linear and nonlinear shear modulus and material damping of soils.  Dr. Stokoe has completed major laboratory studies where dynamic soil properties for the Savannah River Nuclear Power Station were evaluated for the Westinghouse Corporation, and where generic nonlinear soil models (including frequency-dependent material damping) were developed for the Electric Power Research Institute and the ROSRINE (Resolution of Site Response Issues in the 1994 Northridge Earthquake) project.  These three studies have been directed towards evaluating the response of soil sites during earthquakes.  Recently, dynamic soil and rock properties have been evaluated under NQA-1 requirements with the RCTS equipment for projects at Yucca Mountain, Hanford, Los Alamos National Laboratories and the Y-12 National Security Complex for DOE.  The second group of laboratory studies in which Dr. Stokoe has been involved has dealt with axially loading specimens, either with transient pulses or continuous cycling for measurement of Young's, resilient and constrained moduli.  This work has been conducted with funding from the Air Force Office of Scientific Research, National Science Foundation (NSF), California DOT, Texas DOT and DOE.  Much of the recent work has been performed in conjunction with resilient modulus testing of subgrade soils.

Over the last nine years Dr Stokoe has spent a significant amount of time on an important academic project.  He received (along with Prof. Rathje and Prof. Wilson) a $3 million NSF grant in the NEES (Network for Earthquake Engineering Simulation) program.  This project involved developing large-scale mobile field equipment for dynamic loading of geotechnical systems, foundations and structures.  Development of the equipment was completed in September, 2004 and operation of the equipment immediately began.  This project involves shared use of the equipment with other researchers around the U.S. and has a 10-year operating commitment from NSF.  Some of Dr. Stokoe’s time each year is spent on this commitment.  The equipment gives the research community field capabilities that never before existed.  The equipment, which is having a substantial impact on the geotechnical earthquake engineering community in the United States, has already been used by a total of 18 universities, governmental researchers and private firms around the U.S. Dr. Stokoe has been one of the leaders using this equipment to develop new testing methods to evaluate soil nonlinearity and liquefaction directly in the field.  He is also instrumental in developing the equipment to evaluate stiffness profiles over depths of 1000 to 3000 ft and over areas of several hundred square miles.

SCIENTIFIC AND PROFESSIONAL SOCIETY MEMBERSHIP

American Society of Civil Engineers

American Society for Nondestructive Testing

American Society for Testing and Materials

Earthquake Engineering Research Institute

Environmental and Geophysical Engineering Society

International Society of Soil Mechanics and Geotechnical Engineering

Seismological Society of America

Society of Exploration Geophysicists

Transportation Research Board

Society of Professional Engineers

HONORS AND AWARDS

National Science Foundation Traineeship, 1967, 1968, 1969

Traveling Scholar, University of Illinois, 1969

Woodrow Wilson Fellowship, University of Michigan, 1970

Distinguished Achievement Award, Graduate Student in Civil Engineering, 1971

Outstanding Paper Award, Texas Section of ASCE:  Sept., 1974; April, 1975; Sept., 1977

Ervin Sewell Perry Student Appreciation Award, 1977

Student Engineering Council Teaching Achievement Award, May, 1977

Engineering Foundation Award, November, 1977

Outstanding Service Award, American Society of Civil Engineers, 1979

Invited State-of-the-Art Speaker:

Society of Exploration Geophysicists, 1978 and 1981

American Society of Civil Engineers, 1980

International Symposium on Borehole Geophysics, Tucson, Arizona, February 1990

Italian Geotechnical Conferences in Turin, Italy, 1989 and 1990

Fortieth Annual Geotechnical Engineering Conference, Minneapolis, Minnesota 1992

Italian Society of Applied Geophysics, Torino, Italy, 1992

Second Italian Meeting of Young Researchers in Applied Geology, Rome, Italy, 1992

XIII Inter. Conf. on Soil Mechanics and Foundation Engineering, New Delhi, India, 1994

Inter. Symp. on Prefailure Deformation Characteristics of Geomaterials, Sapporo, Japan  1994

The Asian Pacific Petroleum/Gas Offshore Technology Workshop (HK), Nov. 1995

Second International Conference on Earthquake Geotechnical Engineering, Lisbon 1999

Inter. Conf. on Geotechnical and Geological Engineering, Melbourne, Australia, 2000

11th ICSDEE & 3rd ICEGE, Univ. of California, Berkeley, January, 2004

Second International Conference on In Situ Site Characterization, Portugal, 2004

Distinguished Advisor Award, February 1982

Walter L. Huber Civil Engineering Research Prize, ASCE, 1983

Student Appreciation Award, ASCE, Student Chapter, 1985

Outstanding Service Award, Austin Chapter of ASCE, 1986

Visiting Professor at University of Naples, Italy, May-June, 1987

National Geotechnical Board, National Research Council, 1988-1992

U.S. Air Force Pavements Research Advisory Group, 1988

Best Offshore Technology Conference Geophysics Paper Award from Society of Exploration Geophysicists, September 1990

Ardaman Geotechnical Lecture Award, The University of Florida, Gainesville, Florida 1990

Best Paper Presented at the 1991 Annual Meeting of the Society of Exploration Geophysicists

Distinguished Lecture, Virginia Polytechnic Institute, Blacksburg, VA, April, 1997

Elected to the National Academy of Engineering in 1997

Billy and Claude R. Hocott Distinguished Centennial Engineering Research Award, 1997

Distinguished Lecture, University of California Berkeley, May, 2001

Distinguished Lecture, University of Kentucky, May 2002

Earthquake Engineering Research Institute Distinguished Lecturer for 2004

Lectured at: St. Louis Chapter, University of Illinois, Purdue University, University  of Michigan, Cornell University, University of Puerto Rico-Mayaguez, Texas A&M University, University of Notre Dame

Ervin Sewell Perry Student Appreciation Award, 2004

George Sowers Lecturer, Georgia Tech. University, 2004

Distinguished Lecture, University of Massachusetts, 2004

Engineering Alumni Society Merit Award, University of Michigan, 2004

Harold Mooney Award from the Society of Exploration Geophysicists (SEG), “in recognition of scientific and technical excellence and innovation leading to the advancement of near-surface geophysics”, October 2004

First Recipient of the United States University Council of Geotechnical Education and Research (USUCGER) Distinguished Researcher Award, “for innovative research contributions to geotechnical engineering”, January 2005

Teaching Excellence Award, Student Engineering Council, May 2005

Distinguished Lecture, University of Missouri Columbia, October 2005

Founding Board Member, Network for Earthquake Engineering Simulation (NEES) 2003-2008

Vice-President of NEES (a ~$20M/yr organization) 2006-2008

Invited Lecture, “Subsurface Imaging of Ground Conditions for Engineering Applications”, Invited Lecture, The Academy of Medicine, Engineering and Science of Texas Annual Conference, Houston, TX, January, 2006.

Invited Lecture, “Use of Intermediate to Large Vibrators as Surface Wave Sources to Evaluate Vs Profiles for Earthquake Studies,” Invited Talk, 19th Symposium on the Application of Geophysics to Engineering and Environmental Problems, Seattle, WA, April, 2006.

Invited Speaker, Warren Lecture Series, “The Increasing Role of Stress Wave Measurements in Solving Geotechnical Engineering Problems,” University of Minnesota, March, 2007.

Invited Keynote Speaker, “Field Seismic Testing in Geotechnical Earthquake Engineering,” 4th International Conference on Earthquake Geotechnical Engineering, Thessaloniki, Greece, June, 2007

Invited Lecture, “The Increasing Role of Stress Wave Measurements in Solving Geotechnical Engineering Problems” Invited Talk, 6th Jennings Memorial Lecture, Johannesburg and Durban, South Africa, September, 2007.

2008 EEGS/NSG Frank Frischknecht Leadership Award, “for your extraordinary leadership advancing the cause of Engineering and Environmental Geophysics,” April 2008.

Invited Keynote Speaker, “Application of Seismic Measurements in Geotechnical Engineering,” 4th Geotechnical Earthquake Engineering and Soil Dynamics Conference (GEESD IV), Sacramento, CA, May, 2008.

Invited Keynote Speaker, “Application of Advanced Seismic Testing to Geotechnical Site Characterization,” 2nd International Conference on Geotechnical Engineering for Disaster Mitigation and Rehabilitation (GEDMAR08), Nanjing, China, May, 2008.

Invited Keynote Speaker, “Deep Vs Profiling Methods in Geotechnical Earthquake Engineering” 1908 Messina and Reggio Calabria Earthquake (MERCEA’08), Santa Trada di Cannitello, Italy, July, 2008.

PUBLICATIONS (Selected Publications Dated After January 1, 1994)

1.         Kalinski, M.E., Stokoe, K.H., II, Jirsa, J.O. and Roesset, J.M., “Nondestructive Identification of Internally Damaged Areas of Concrete Beam Using the SASW Method,” Transportation Research Record, 1458, 1994, pp 14-19.

2.         Stokoe, K.H., II Wright, S.G., Bay, J.A. and Roesset, J.M., 1994, “Characterization of Geotechnical Sites by SASW Method,” ISSMFE Technical Committee #10 for XIII ICSMFE, Geophysical Characterization of Sites, A. A. Balkema Publishers/Rotterdam & Brookfield, Netherlands, pp. 15-25.

3.         Bay, J.A., Stokoe, K.H., II and Jackson, J.D., “Development of a Rolling Dynamic Deflectometer for the Study of Stiffness Variability and Nonlinear Behavior in Pavements,” Transportation Research Record No. 1473, 1995, pp. 43-544.

4.         E. Kavazanjian, K.H. Stokoe, II and J. Bray, “In Situ Shear Wave Velocity of Solid Waste Material From Surface Wave Measurements,” Proceedings, Second International Congress on Environmental Geotechniques, Osaka, Japan, November, 1996.

5.         E.G. Brignoli, M Gotti, and K.H. Stokoe, II, “Measurement of Shear Waves in Laboratory Specimens by Means of Piezoelectric Transducers,” Geotechnical Testing Journal, ASTM, Vol. 19, No. 4, December 1996, pp. 384-397.

6.         K.H. Stokoe, II, B. Lee, B.L. Rosenblad, and S.G. Wright, “Analytical Study of Surface Wave Testing Along the Seafloor, Proceedings, 1997 Offshore Technology Conference, OTC 8326, Houston, TX, May 5-8, 1997.

7.         K.H. Stokoe, II, E.G.M. Brignoli, C. Fretti, M. Jamiolkowski and S. Pedroni,  “Stiffness of Gravelly Soils at Small Strains,” Proceedings, XIVth International Conference on Soil Mechanics & Foundation Engineering, Hamburg, Germany, September, 1997.

8.         R.D. Andrus and K.H. Stokoe, II, “Liquefaction Resistance Based on Shear Wave Velocity,” Proceedings, NCEER Workshop on Evaluation of Liquefaction Resistance of Soils, T.Y. Youd and I.M. Idriss, Eds., Buffalo, NY, 1997.

9.         Kalinski, M.E., Stokoe, K.H., II, Young, Y.L., and Roesset, J.M., “Borehole SASW Testing to Evaluate Log (Gmax) - Log (s′) Relationships in Situ,” Nondestructive and Automated Testing for Soil and Rock Properties, ASTM STP 1350, W.A. Marr and C.E. Fairhurst, Eds., American Society for Testing and Materials, 1998.

10.     K.H. Stokoe, II, J.A. Bay, M.T. McNerney, and B.F., McCullough, “Continuous Profiling of Runway and Taxiway Pavements with the Rolling Dynamic Deflectometer (RDD) at the Dallas-Fort Worth International Airport,” 77th Annual Meeting, Transportation Research Record No. 1639, 1998, pp. 102-111.

11.     N.J. Lee, K.H. Stokoe, II, M.T. McNerney, and B.F. McCullough, “In-Situ Evaluation of Layer Stiffnesses in Airport Pavements by Crosshole Seismic Tests,” Transportation Research Record No. 1639, 1998, pp. 62-72.

12.     B.A. Luke and K.H. Stokoe, II, “Application of the SASW Method Underwater,” Journal of Geotechnical and Geoenvironmental Engineering, American Society of Civil Engineers, Vol. 124 No. 6, June, 1998, pp. 523-531.

13.     B.A. Luke K.H. Stokoe, II, J.A. Bay, N.J. Lee and P.P. Nelson, “Seismic Measurements to Investigate Disturbed Rock Zones,” Proceedings, Third National Conference of the ASCE Geo-Institute, Urbana-Champaign, IL, June, 1999, pp. 303-314.

14.     Stokoe, K.H.,II, M.B Darendeli, R.D. Andrus and L.T. Brown, “Dynamic Soil Properties: Laboratory, Field and Correlation Studies,” Theme Lecture, Second International Conference Earthquake Geotechnical Engineering, Vol. 3, Lisbon, Portugal, June, 1999, pp. 811-845.

15.     Bay, J.A. and Stokoe, K.H., II, “Continuous Profiling of Flexible and Rigid Highway and Airport Pavements with the Rolling Dynamic Deflectometer,” Nondestructive Testing of Pavements and Backcalculation of Moduli:  Third Volume, ASTM STP 1375, S. D. Tayabji and E. O. Lukanen, Eds., American society for Testing and Materials, Philadelphia, 1999 pp. 429-443.

16.     Stokoe, K.H., II, Allen, J.J., Bueno, J.L., Kalinski, M.E. and Myers, M.L., “In-Situ Stiffness and Density Measurements of Thick-Lift Unbound Aggregate Bases,” Proceedings, Workshop on Modeling, and Advanced Testing for Unbound Granular Material, Lisbon, Portugal, January 21-22, 1999.

17.     Bueno, J.L.; Stokoe, K.H., II; Allen, J.J.; Kalinski, M.E., “Evaluation of Constructing Increased Single-Lift Thicknesses of Unbound Aggregate Bases: Case Study in Georgia,” Transportation Research Record No. 1673, 1999, pp 95-102.

18.     Andrus, R.D. and Stokoe, K.H., II, “SASW Testing to Delineate Potentially Liquefiable Zones and Evaluate Remediation Measures,” 7th U.S. – Japan Workshop on Earthquake Resistance Design of Lifeline Facilities and Countermeasures Against Liquefaction, Seattle, WA., August 15-17, 1999,

19.     Stokoe, K.H., II and Santamarina, J.C., Invited Paper, “Seismic-Wave-Based Testing in Geotechnical Engineering,” International Conference on Geotechnical and Geological Engineering, GeoEng 2000, Melbourne, Australia, November 2000, pp. 1490-1536.

20.     Bay, J.A., Stokoe, K.H., II, McNerney, M.T., Soralump, S. and VanVleet, D, Rozycki, D.K. “Evaluation of Runway Pavements at the Sea-Tac International Airport Using Continuous Deflection Profiles Measured with the Rolling Dynamic Deflectometer,” Transportation Research Record No. 1716, 2000, pp 1-9.

21.     Aouad, M., Stokoe, K.H., II and Joh, S.-H., “Estimating Subgrade Stiffnessess and Bedrock Depth from Combined FWD and Simplified SASW Measurements,” Transportation Research Record No. 1716, 2000, pp 40-48.

22.     Stokoe, K.H., II, Bay, J.A., Rosenblad, B.L., Murphy, M.R., Fults, K.W. and Chen, D.-H., “Super-Accelerated Testing of a Flexible Pavement with the Stationary Dynamic Deflectometer (SDD),” Transportation Research Record No. 1716, 2000, pp 98-107.

23.     Andrus, D.R. and Stokoe, K.H., II “Liquefaction Resistance of Soils from Shear-Wave Velocity,” ASCE, Journal of Geotechnical and Geoenvironmental Engineering, Vol. 126, No. 11, November, pp 1015-1025, 2000.

24.     Darendeli, M.B., Stokoe, K.H., II, Rathje, E.M. and Roblee, C.J., “Importance of Confining Pressure on Nonlinear Soil Behavior and Its Impact on Earthquake Response Predictions of Deep Sites,” XVth International Conference on Soil Mechanics and Geotechnical Engineering, August 27-31, 2001, Istanbul, Turkey.

25.     Kalinski, M. E., Ata, A., Stokoe, K. H., II, and O'Neill, M., “Use of SASW Measurements to Evaluate the Effect of Lime Slurry Conditioning in Drilled Shafts,” Journal of Environmental and Engineering Geophysics, Vol. 6, No. 4, December 2001.

26.     Brown, L.T., Boore, D.M. and Stokoe, K.H., II, “Comparison of Shear-Wave Slowness Profiles at 10 Strong-Motion Sites from Noninvasive SASW Measurements and Measurements Made in Boreholes,” Bulletin of the Seismological Society of America, Vol. 92, No. 8, pp. 3116–3133, December 2002.

27.     Kalinski, M. E. and Stokoe, K. H., II “In Situ Estimate of Shear Wave Velocity using the Borehole SASW Tool,” Journal of Geotechnical and Geoenvironmental Engineering Vol. 129, Issue 6, pp. 529-535, June 2003.

28.     Stokoe, K.H., II, Rosenblad, B.L., Bay, J.A., Redpath, B., Diehl, J.G., Steller, R.A., Wong, I.G., Thomas P.A. and Luebbers,M., “Comparison of VS Profiles from Three Seismic Methods at Yucca Mountain,” Proceedings, Volume I, Soil and Rock America 2003, June 22-25, 2003, Cambridge, MA, pp. 299-306.

29.     Rathje, E.M., Stokoe, K.H., and Rosenblad, B.L., “Strong Motion Station Characterization and Site Effects During the 1999 Earthquakes in Turkey,” Earthquake Spectra, Earthquake Engineering Research Institute, accepted for publication in Volume 19(3), August, 2003.

30.     Stokoe, K.H., II, Rathje, E.M., Wilson, C.R., Rosenblad, B.L. and Menq, F.-Y., 2004, “Development of the NEES Large-Scale Mobile Shakers and Associated Instrumentation for In Situ Evaluation of Nonlinear Characteristics and Liquefaction Resistance of Soils” 13th World Conference on Earthquake Engineering, Vancouver, Canada, August.

31.     Stokoe, K.H., II, Rosenblad, B.L., Wong, I.G., Bay, J.A., Thomas, P.A. and Silva, W.J., 2004, “Deep Vs Profiling Along the Top of Yucca Mountain Using a Vibroseis Source and Surface Waves,” 13th World Conf. on Earthquake Engineering, Vancouver, Canada, August.

32.     Andrus, R.D. and Stokoe, K.H., II, 2004, “Guide for Shear-Wave-Based Liquefaction Potential Evaluation,” Earthquake Spectra, Vol. 20, No. 2, pp. 285-305.

33.     Chang, W.-J., Rathje, E.M., Stokoe II, K.H., and Cox, B.R., (2004), “Evaluation of Effectiveness of Prefabricated Drains in Liquefiable Sand,” Soil Dynamics and Earthquake Engineering, 24(9-10).

34.     Turner, D.J., Lee, J.L.-Y., Stokoe, KH, II, Boudreau, R.L., Watkins, Q.B., and Chang, G.K., (2004). “Discrete and Continuous Deflection Testing of Runways at Hartsfield Atlanta International Airport, Georgia,” “Transportation Research Record, Journal of the Transportation Research Board 1860.

35.     Rathje, E.M., Chang, W.-J., and Stokoe II, K.H. (2004) “Development of an In Situ Dynamic Liquefaction Test,” ASTM Geotechnical Testing Journal, 28(1).

36.     Stokoe, K.H., Joh, S.H., Woods, R.D. (2004). Invited SOA Paper, “Some Contributions on In Situ Geophysical Measurements to Solving Geotechnical Engineering Problems,” 2nd International Conference on Site Characterization, Porto, Portugal, September.

37.     Stokoe, K.H., Rathje, E.M., Cox, B.R. and Chang, W.J. (2004) “Using Large Hydraulic Shakers to Induce Liquefaction in the Field,” International Conference on Cyclic Behavior of Soils and Liquefaction Phenomena Bochum, Germany, April.

38.     Huerta-Lopez, C.I., Stokoe, II, K.H., Pulliam, J., Valle-Molina, C., Roësset, J.M. (2005).  “Modeling of Seafloor Soft Marine Sediments and Spectral Characteristics of Earthquakes Recorded in the Gulf of Mexico,” Journal of Offshore Mechanics and Arctic Engineering, Vol. 127, No. 1, pp. 59-67.

39.     Lee, J.L.Y., Stokoe, II, K.H., Chen, D.H., Garrison, M.R., Nam, B.H. (2005). “Monitoring Pavement Changes in a Rehabilitation Project with Continuous Rolling Dynamic Deflectometer Profiles,” Transportation Research Board, Journal of the Transportation Research Board, No. 1905, pp. 3-16.

40.     Suh, C., Lee, J.L., Fowler, D.W., Stokoe, K.H. (2005). “Super-Accelerated Pavement Testing on Full-Scale Concrete Slabs,” 84th Transportation Research Board, Washington, D.C.

41.     Stokoe, K.H., Rathje, E.M., Axtell, P.J. (2005).  “Development of an In Situ Method to Measure the Nonlinear Shear Modulus of Soil,” 16th International Conference on Soil Mechanics and Geotechnical Engineering, Osaka, Japan, September 2005.

42.     Lee, J.L., Stokoe, K.H., Bay, J.A. (2005). “The Rolling Dynamic Deflectometer: A Tool for Continuous Deflection Profiling of Pavements,” 16th International Conference on Soil Mechanics and Geotechnical Engineering, Osaka, Japan, September 2005.

43.     Lee, J.L.Y., Stokoe, II, K.H., Chen, D.H., Garrison, M.R., Nam, B.H. (2005). “Monitoring Pavement Changes in a Rehabilitation Project with Continuous Rolling Dynamic Deflectometer Profiles,” Transportation Research Board, Journal of the Transportation Research Board, No. 1905, pp. 3-16.

44.     Joh, S.-H., Stokoe, K.H., L. I-W., Kang, T.-H. Rosenblad, B., Bay, J.A. (2006). “Joint Inversion for Apparent Phase Velocities of Rayleigh and Love Waves,” ASCE/Geo-Institute Geo-Congress 2006, Atlanta, GA, February, 2006.

45.     Stokoe, K.H., Cox, B.R., Lin, Y.-C., Jung, M.J., Menq, F.-Y., Bay, J.A., Rosenblad, B., Wong, I. (2006). Invited Paper, “Use of Intermediate to Large Vibrators as Surface Wave Sources to Evaluate Vs Profiles for Earthquake Studies,” 19th Symposium on the Application of Geophysics to Engineering and Environmental Problems, Seattle, WA, April, 2006.

46.     Kurtulus, A. and Stokoe, II, K.H. (2006).  “Field Evaluation of the Nonlinear Shear Modulus of Soil,” 8th U.S. National Conference on Earthquake Engineering, San Francisco, CA, April, 2006.

47.     Zekkos, D., Bray, J.D., Kavazanjian, E., Matasovic, N., Rathje, E., Riemer, M., and Stokoe, K.H. (2006). “Unit Weight of Municipal Solid Waste,” ASCE Journal of Geotechnical and Geoenvironmental Engineering, 132(10), 1250-1261, October, 2006.

48.     Stokoe, II, K.H., Kurtulus, A., Park, K. (2006). “Development of Field Methods to Evaluate the Nonlinear Shear Modulus of Soil”.  Earthquake Geotechnical Engineering Workshop, Canterbury 2006, Christchurch, New Zealand, November, 2006.

49.     Lerch, D.W., Klemperer, S.L., Stokoe, K.H, Menq, F.Y. (2007).  “Integration of the NEES T-Rex Vibrator and PASSCAL Texan recorders for Seismic Profiling of Shallow and Deep Crustal Targets,” Seismological Research Letters, June.

50.     Stokoe, II, K.H. (2007). Theme Lecture and Paper, “Field Seismic Testing in Geotechnical Earthquake Engineering,” 4th Int’l Conf. on Earthquake Geotechnical Engineering (4ICEGE), Thessaloniki, Greece, June.

51.     Chang, W.-J., Rathje, E.M., Stokoe, K.H., and Hazirbaba, K. (2007). “In Situ Pore Pressure Generation Behavior of Liquefiable Sand,” ASCE Journal of Geotechnical and Geoenvironmental Engineering, 133(8), 921-931, August.

52.     Rosenblad, B.L., Li, J., Menq, F.-Y., Stokoe, K.H. (2007).  “Deep Shear Wave Velocity Profiles from Surface Wave Measurements in the Mississippi Embayment,” Earthquake Spectra, 23(4), pp. 791-808. November.

53.     Kurtulus, A., Stokoe, II, K.H. (2007). “Field Method for Measuring Nonlinear Soil Behavior at Depth Using a Dynamically Loaded Drill Shaft,” Geotechnical Testing Journal, 26(4).

54.     Lin, L.-Y., Stokoe, II, K.H., Rosenblad, B., (2008). “Variability in Vs Profiles and Consistency between Seismic Profiling Methods: A Case Study in Imperial Valley, California,” 3rd International Conference on Site Characterization (ISC-3), Taipei, Taiwan, April.

55.     Rosenblad, B., Li, J., Stokoe, II, K.H., Wilder, B., Menq, F.-Y. (2008). “Deep Shear Wave Velocity Profiling of Poorly Characterized Soils Using the NEES Low-Frequency Vibrator,” Geotechnical Earthquake Engineering and Soil Dynamics IV (GEESD IV), Sacramento, CA, May.

 

 


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