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Research



Research Interests

Soil-structure interaction, constitutive modeling, pavement materials and systems including asphalt materials, geomechanics, neural network modeling, application of numerical techniques to geotechnical, structural and geomechanics problems.

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Successful Grants and Contracts

1.         "Analysis of Potential Environmental Implications Resulting from the Operation of Off-Site Oil and Gas Drilling Fluid Disposal Pits" (Faculty Associate; PI: L.W. Canter). Funded by Oklahoma Corporation Commission (total fund=$108,922). Sept. 1983 to Apr. 1984.

 

 2.        "Procurement of Computer Software for Earthquake Engineering Research".  Funded by the University of Oklahoma Research Council (total fund = $2,207), (Co-PI; PI: L.R.L. Wang), February 1984.

 

 3.        "Modelling of Flow of Immiscible Fluids in Heterogeneous, Irregular Shaped Reservoirs for Efficient Oil Recovery"  (PI; Co-PIs A.R. Kukreti and F. Civan). Funded by the Energy Resources Institute (ERI), (total fund = $24,080).  July 1, 1984 to June 30, 1985.

 

 4.        "Modelling of Earthquake Induced Pore Pressure Buildup and Soil Liquefaction Including Effects of Dynamic Soil-Structure Interaction" (PI). Funded by the University of Oklahoma Research Council, (total fund - $3,500). June 1 to August 30, 1985.

 

 5.        "Evaluation of Causes of Excessive Settlements of Pavements Behind Bridge Abutments and their Remedies:  Phase I" (Co-PI; PI; J.G. Laguros). Funded by the Oklahoma Department of Transportation (ODOT) and Federal Highway Administration (FHWA) (total fund = $12,400). June 1985 to Feb. 1986.

 

 6.        "Computer Modelling and Simulation of Mining Systems" (PI).  Funded by the Oklahoma Mining and Mineral Resources Research Institute, (total fund = $7,236).  July 1, 1985 to June 30, 1986.

 

7.         "Development of a Numerical Procedure for Prediction of Ground Subsidence due to Coal Mining" (PI).  Funded by the Oklahoma Mining and Mineral Resources Institute, (total fund $21,043 including CEES and CoE cost sharing).  July 1, 1986 to June 30, 1087.

 

 8.        "High Pressure Cubical Device:  Deformation Measuring Unit" (Co-PI; PI: A.R. Kukreti).  Funded by Energy Resources Institute (ERI) (total fund = $7,000), March 1986.

 

9.         "Development of Constitutive Relationships for Anisotropic Materials under Three-Dimensional Loadings"  (Co-PI; PI: A.R. Kukreti).  Funded by the OU Research Council (total fund - $9,190, including CEES and CoE contributions, for fabrication of a cubical device), April 1986.

 

10.        "Development of a New Constitutive Model for Predicting Yielding and Failure Behavior of Rocks Under Three-Dimensional Loading".  (PI; Co-PI: A.R. Kukreti).  Funded by Energy Resources Institute (ERI)(total fund $39,106, including CEES and CoE cost sharing), July 1, 1987 to July 31, 1988.

 

12.        "Stability Analysis and Characterization of Ground Subsidence of Abandoned Lead-Zinc Mines in Northeastern Oklahoma".  (PI; Co. PI - J.L. Ahern).  Funded by Oklahoma Mining and Mineral Resources Research Institute (total fund $40,200, including cost sharing).  July 1, 1987 to Sept. 1, 1988.

 

13.        "Engineering Research Equipment Grant:  A High Capacity (30,000 psig) Cubical Device".  (PI; Co-PI: A.R. Kukreti).  Funded by National Science Foundation (total fund $62,939).  June 1, 1987 to Nov. 30, 1988.  Supplemental funds from NSF $10,000 (January 1989).  Duration:  through May 31, 1990.

 

14.        "Evaluation of Causes of Excessive Settlements of Pavements Behind Bridge Abutments and Their Remedies:  Phase II."  (Co-PI; PI: J.G. Laguros).  Funded by Oklahoma Department of Transportation (ODOT) and FHWA (total fund for Phase II $114,584), March 1987 to May 1989.

 

15.        " A Cyclic Triaxial Device for Simulation of Soil Liquefaction."  (PI)  Funded by the OU Associates Fund, University of Oklahoma (total fund $20,000, including cost sharing).  Jan. 1 to June 30, 1988.

 

16.        "Engineering Research Equipment Grant:  A High Capacity (30,000 psig) Cubical Device."  (PI; Co-PI: A.R. Kukreti).  Matching funds for NSF from Okla. Deprt. of Com. (total fund $31,469), Jan. to Dec. 1988.

 

17.        "A Laboratory Model for Simulation of Transient Phreatic Surface Seepage Through Earth Dams" (PI; Co-PI: J.G. Laguros).  Funded (total fund = $3,740 including CEES and CoE cost-sharing) by OU Instructional Support Funds, Dec. 1987 to June 1988.

 

18.        "Evaluation of Causes of Excessive Settlements of Pavements Behind Bridge Abutments and Their Remedies:  Phase III" (Co-PI; PI: J.G. Laguros).  Funded by Oklahoma Dept. of Transportation (ODOT) and Federal Highway Administration (FHWA) (total fund for Phase III $258,619), Dec. 1988 to May 1991.

 

19.        "Evaluation of Properties of Rocks and Characterization of Mine Collapse in the Picher Field Mining District, Oklahoma" (PI; Co-P.I. J.L. Ahern).  Funded by Oklahoma Mining and Mineral Resources Research Institute (OMMRRI) )(total fund $39,469 - including cost-sharing).  July 1, 1988 - June 30, 1989.

 

20.        "Procurement of Software for CE 1111: Handheld Computers and ENGR 1112:  Introduction to Engineering" (PI; Co-PIs: J.G. Laguros and B.J. Wallace) Funded by OU Inst. Support Program (total fund $4,735 including cost-sharing).  October 1988 to March 1989.

 

21.        "Underground Storage Tank Assessment Methodology" (Co-PI, PI: D. Sabatini).  Funded by SEARCH, Inc. (total fund $16,529).  Aug. 1989 - Jan. 1990.

 

22.        "Experimental Study of Pore Collapse Mechanisms in Porous Rock."  (PI; Co-PI: M.O. Faruque).  Funded by Energy Center, Univ. of Oklahoma (total fund $6,000).  Sept. 1989 - Aug. 1990.

 

23.        "Evaluation of Dynamic Response of Offshore Drilling Platforms and Soil Liquefaction Due to Arctic Loading" (PI).  Funded by Univ. of Okla.Research Council (total fund $6,361).  March 1990 - Dec. 1990.

 

24.        "Constitutive Modeling of Geological Formations Considering Porosity and Permeability Alterations Due to Fluid Withdrawal" (PI; Co-PI: A.R. Kukreti and F. Civan).  Funded by the Oklahoma Mining and Mineral Resources Institute (total fund $50,864, including cost-sharing).  July 1, 1990 - June 30, 1991.

 

25.        "Assessment of Current Resilient Modulus Testing Methods and Their Application to Design of Pavements".  (PI; Co-PI: J.G. Laguros)  Funded by the Oklahoma Dept. of Transportation (ODOT) and Federal Highway Administration (FHWA) (total fund $7,500).  July 1 - Dec. 30, 1990.

 

26.        "Study of Pore Collapse Problems in Oil Reservoir Rocks" (Principal Investigator; Co-P.I. - J.C. Roegiers).  Funded by the Oklahoma Center for the Advancement of Science and Technology (OCAST) and Rock Mechanics Consortium (RMC), (total fund $199,404, excluding cost-sharing).  July 1990 - June 1993.

 

27.        "U.S.-Canada Workshop on Recent Accomplishments and Future Trends in Geomechanics in the 21st Century" (PI; Co-PIs: C.S. Desai and A.P.S. Selvadurai).  Funded by the National Science Foundation ($44,200). July 1, 1991 - Jan. 31, 1994.

 

28.        "Expert Systems for Reservoir Completion and Stimulation" (Co-PI; PI: J.C. Roegiers).  Funded by OCAST  and Rock Mechanics Consortium (RMC) (total fund $245,402, excluding matching).  Dec. 1991 - Jan. 1995.

 

29.        "Resilient Moduli of Soils for Improved Pavement Design" (PI; Co-PI: J.G. Laguros).  Funded by OCAST (total fund $97,095).  Dec. 1991 - Nov. 1994.

 

30.        "Laboratory and Field Testing to Characterize Bridge Approach Settlements at Selected Sites and Development of Settlement Evaluation Methodology for Predominantly Clay Sites" (PI; Co-PI: J.G. Laguros).  Funded by Oklahoma Dept. of Transportation (ODOT) and Federal Highway Administration (FHWA), (total fund $181,598).  July 1991 - Sept. 1995.

 

31.        "Resilient Moduli of Select Aggregate Bases and Their Correlations with Other Engineering Properties" (PI; Co-P.I.:  J.G. Laguros).  Funded by Oklahoma Dept. of Transportation (ODOT) and Federal Highway Administration (FHWA) (total fund $60,000).  July 1991 - Sept. 1993.

 

32.        "Effect of fluid Hydraulics on Petroleum Rock Behavior" (with A.R. Kukreti (PI) and F. Civan).  Funded by OCAST (total fund $115,241).  Aug. 1992 - July 1995.

 

33.        "Sample Preparation Equipment for Resilient Modulus Testing of Soils" (PI; Co-PI:  J.G. Laguros).  Funded by OU Research Council (total fund $2,225; excluding matching).  June - Dec. 1992.

 

34.        "Rock Mechanics Research Center: (Co-PI; with J.-C. Roegiers (PI) and D.W. Stearns (Co-PI)).  Funded by NSF  and OCAST (total fund NSF $2.4M; OCAST $2.4M; over $2.4 M in industry matching).  Sept. 1992 - Aug. 2000.

 

35.        "Demonstration of Engineering Mechanics:  Physical and Computer Models as Teaching Tools" (Co-PI; PI: B. Russell).  OU Instructional Improvement Award (total fund $6,800).  July 1994 - July 1995.

 

36.               "Cooling Properties of Asphalt Surfaces" (PI; Co-PI: J.G. Laguros).  Funded by ODOT and FHWA (total fund $7,410).  Sept. - Dec. 1994.

 

37.        "Resilient Moduli of Raw and Stabilized Aggregate Bases and Evaluation of Layer Coefficients for AASHTO Flexible Pavement Design" (PI; Co-P.I.: J.G. Laguros).  Funded by ODOT and FHWA (total fund $274,053).  Oct. 1994 - Dec. 1997.

 

38.        "Field Evaluation of Drainable Bases in Oklahoma" (PI; Co-PIs: K. Muraleetharan, J.G. Laguros).  Funded by ODOT (total fund $53,959).  Jan. - Sept. 1995.

 

39.        "Experimental Study of the Effects of Reinforcing Steel Arrangement in CRCP" (PI; Co-PI: G.A. Miller).  Funded by Concrete Reinforcing Steel Institute (total fund ($30,000).  Feb. 1995 - Jan. 1996.

 

40.        "Nonlinear Analysis of Coupled Fluid/Rock Interaction" (Co-PI with Y. Abousleiman (PI), J.-C. Roegiers (Co-PI), G. Scott (Co-PI)).  Funded by OCAST (total fund $373,234).  July 1995 - June 1998.

 

41.        "Testing Screen for Sieving of Coarse and Fine Aggregates" (PI; Co-PI: J.G. Laguros).  Funded by OU Research Council (total fund $4,850).  June - July, 1995.

 

42.        "Modeling the 85th Percentile Speed on Oklahoma Two-Lane Rural Highways: A Neural Net Approach" (PI; Co-PI: K. Muraleetharan) (total fund $39,787).  Funded by Oklahoma Department of Transportation, Jan. 1997 - June. 1998.

 

43.        "Groundwater Sensitivity Analysis for Potential Pollution Sources" (P.I.: M. Zaman; Co-P.I.s: A.R. Kukreti and K. Strevett).  Funded by EPA (total fund $253,038, including $25,000 equipment match by OU).  Oct. 1996 - Sept. 1999.

 

44.        “Impact of Loaded Trucks on Transportation Infrastructure Deterioration” (PI; Co-PI: M.A. Mooney).  Funded by Oklahoma Dept. of Transportation (total fund $10,364).  Oct. 1996 - Jan. 1997.

 

45.        “Laboratory Investigation of Soft Railroad Subgrade Failure Under Repeated Load Applications” (Co-PI; PI; G.A. Miller).  Funded by Assoc. of American Railroad (total fund $19,910).  Jan. - June 1997.

 

46.          “Improving Concrete Performance Through the Use of Blast Furnace Slag” (Co-PI with T. Bush (PI) and B. Russell (Co-PI)).  Funded by Oklahoma Dept. of Transp. (total fund $98,737).  Jan. 1997 - December 1998.

 

47.          “Use of Asphalt Millings for Subbase” Funded by Oklahoma Dept. Of Transportation (total fund $12,938) (PI).  Sept. 1, 1997 – Jan. 31, 1998.

 

48.          "Laboratory and Field Evaluation of Soil Stabilization Using Cement Kiln Dust" (PI; Co-PI: G. Miller). Funded by Oklahoma Department of Transportation (total fund $44,091). Oct. 1997-Sept. 1998.  

 

49.          "Automated Triaxial Test System for Unsaturated Soils" (Co-PI with K. Muraleetharan (PI), M.A. Mooney (Co-PI) and G.A. Miller (CoPI). Funded by OU Research Council (total fund $51, 900). Sept.-Dec.1997.

 

50.          “Mix Design Using Asphalt Millings” (PI; Co-PIs: A.R. Kukreti and G.A. Miller).  Funded by Oklahoma Dept. of Transportation. (total fund $77,655).  Aug. 1998 – Sept. 2000.

 

51.          “Chemicals in the Environment – Doctoral Fellowships in Environmental Engineering” (Co-PI with R.C. Knox (PI), Canter, Kolar, Kukreti, Nairn, Strevett, Sabatini, Vieux and others).  Funded by U.S. Dept. of Education. (total fund $751,530).  Aug. 1998 – July 2002.

 

52.          “International Workshop on Sea Level Rise and Coastal Management” (PI).  Funded by National Science Foundation. (total fund $14,700).  Feb. 1999 – Jan. 2000.

 

53.          “Sooner City – Design Across the Curriculum” (Co-PI; A.R. Kukreti (PI), Kolar, Bush, Muraleetharan, Sabatini, Miller and others).  Funded by National Science Foundation. (total fund $750,000).  Sept. 1998 – Aug. 2001.

 

54.          “Technology Transfer Workshops” (PI; Co-PIs: M. Kanj, T. Scott and J.-C. Roegiers).  Funded by OCAST. (total fund $20,000).  Sept. 1999 – Aug. 2000.

 

55.          “Pavement Management Data Analysis” (PI).  Funded by Oklahoma Dept. of Transportation.  (total fund $14,626).  May 1999 – Jan. 2000.

 

56.          “Durability of Chemically Stabilized Aggregate Bases” (PI; Co-PI: G.A. Miller).  Funded by Oklahoma Dept. of Transportation. (total fund $140,554).  May 1999 – July 2001.

 

57.          “Settlement of Compacted Fill Embankments” (PI; Co-PI: G.A. Miller and K. Muraleetharan).  Funded by Oklahoma Dept. of Transportation. (total fund $80,944).  April 1999 – March 2001.

 

58.          “Evaluation of Rutting Potential of Selected Mixes Using an Asphalt Pavement Analyzer” (PI).  Funded by Oklahoma Dept. of Transportation.  (total fund $174,127 including $40,000 matching from VPRA and $30,000 matching from OAPA).  Oct. 1999 – Sept. 2000.

 

59.          “Ray C. Broce Materials Laboratory” (Asphalt) (PI; Co-PIs: A.R. Kukreti and G.A. Miller).  Funded by Broce Construction Co. (total fund $140,000 including $40,000 matching from VPRA).  Aug. 1998 – Sept. 2000.

 

60.          “High Performance Pavement Using Recycled Materials” (PI). Funded by OCAST (total fund $115,000). Mar. 2000 – May 2003.

 

61.          “Integrated, Scalable MBS for Flow Through Porous Media” (Co-PI with D. Papavassiliou (PI) and H. Neeman (Co-PI)). Funded by National Science Foundation (total fund $150,071). Sept. 2000 – Feb. 2002.

 

62.          “Acoustic Imaging and Mechanical Properties of Soft Rocks and Marine Sediments” (Co-PI with T. Scott (PI) and Y. Abousleiman (Co-PI)). Funded by U.S. Dept. of Energy (total fund $366,718). Jan. 2001 – Dec. 2002.

 

63.          “Acquisition and Development of Equipment for Unsaturated Soil Research” (Co-PI with G.A. Miller (PI) and K. Muraleetharan (Co-PI)). Funded by National Science Foundation (MRI Prog.) (total fund $368,778). July 2000 – June 2002.

 

64.          “Rock Mechanics Institute Consortium:  Phase III” (Co-PI; PI: Y. Abousleiman). Funded by Industry (total fund $600,000, Year 3). Jan. – Dec. 2001.

 

65.          “Resilient Modulus and Density Gradient Analysis of Selected Asphalt Mixes” (PI). Funded by Oklahoma Dept. of Transportation and Federal Highway Administration (total fund $153,044). Oct. 2001 – Sept. 2003.

 

66.          “A Lab.Study to Optimize the Use of Raw Chat in Hot Mix Asphalt for Pavement Application” (PI; Co-PI: R. Nairn). Funded by Oklahoma Department of Environmental Quality (total fund $200,000). Sept. 2002 – August 2004.

 

67.          “An Alternate Method for the Determination of Asphalt Content” (PI; Co-PIs: R.A. Tarefder and Y. Abousleiman). Funded by Oklahoma Transportation Center (total fund $59,117). May – Sept. 2002.

 

68.          “Evaluation of Surface Free Energy Characteristics of Aggregates and Binders in Hot Mix Asphalt: Phase I” (PI; C-PI: N. Wasiuddin).  Funded by Oklahoma Transp. Center (total fund $8,900). May – Sept. 2002.

69.          “Intelligent Asphalt Compaction Analyzer” (Co-PI; PI; S. Commuri). Funded by OCAST (total fund $594,279, including match). Sept. 2003 – Aug. 2006.

 

70.          “Effect of Suction and Moisture on RM of Subgrade Soils in Oklahoma” (PI; Co-PI: G.A. Miller). Funded by Oklahoma Dept. of Transportation (total fund $105,242). Oct. 2003 – Sept. 2005.

 

71.          “Evaluation of Surface Free Energy Characteristics of Aggregate and Binders in HMA: Phase I” (PI). Funded by Oklahoma Transportation Center (total amount $40,980). Jan. – Sept. 2003.

 

72.          “Evaluation of Surface Free Energy Characteristics of Aggregate and Binders in HMA: Phase II” (PI). Funded by Oklahoma Transportation Center (total fund $87,541). Oct. 2003 – Sept. 2004.

 

73.          “Resilient Modulus and Other Geotechnical Testing of Subgrade Soils” (PI). Funded by Burgess Engineering and Testing, OKC (total fund $6,396). Jan. 2003 – May 2004.

 

74.          “Research Experience for Undergraduates in Geoenvironmental Systems” (Co-PI with R. Kolar (PI) and others). Funded by National Science Foundation REU (total fund $542,318). Mar. 2000 – Feb. 2005.

 

75.          “Doctoral Fellowships in Sustainable Technologies for Civil and Environmental Systems” (Co-PI with R. Kolar (PI) and others). Funded by U.S. Dept. of Education (total fund $793,344). Sept. 2003 – Aug. 2006.

 

76.          “Maximum Chat Utilization – Test Road” (PI; Co-PIs: R. Nairn, G.A. Miller and K. Strevett). Funded by DoD-Corps of Engineers (total fund $500K). May 2004 – Dec. 2007.

 

77.          “National Public Transportation Analysis” (Co-PI with Court (PI), Landers and others). Funded by Federal Transit Administration (total fund $1,5M). Sept. 2004 – Aug. 2007.

 

78.          “Engineering Properties of Stabilized Subgrade Soils for Implementation of the AASHTO 2002 Pavement Design Guide” (PI; Co-PI: N. Khoury). Funded by Oklahoma Dept. of Transportation (total fund $296,152). Oct. 2005 – Sept. 2008.

 

79.          “Effect of Anti-Stripping Additives on Performance-Graded Binders in Oklahoma” (PI; Co-PI: J.G. Laguros). Funded by Oklahoma Transportation Center (total fund $68,672). Mar. 2005 – Mar. 2006.

 

80.          “Permeability and Resilient Modulus of Different Aggregate Bases Commonly Used in Oklahoma” (Co-PI; PI: N. Khoury). Funded by Okla. Transp. Center (total fund $58,000). Mar. 2005 – Oct. 2006.

 

81.          “Public Perception of Noise Barriers in Oklahoma (Phase: I)” (Co-PI; PI: M. Nanny). Funded by Oklahoma Transportation Center (total fund $67,500). Mar. 2005 – Aug. 2007.

 

82.          “OTC FY04 Federal Highway Earmark Projects for OSU and LU” (PI; Co-PI: T. Landers). Funded by Oklahoma Transportation Center (total fund $534,630). Feb. 2006 – Dec. 2008.

 

83.          “Field Performance Monitoring and Modeling of Instrumented Pavement on I-35 in McLain Co” (PI; Co-PI: K. Muraleetharan). Funded by Okla. Dept. of Transportation (total fund $287,961). Oct. 2006 – Sept. 2011.

 

84.          “Field Correlation of PQI Gauge with Nuclear Density Gauge: Phase I” (PI; Co-PI: S. Commuri). Funded by Okla. Dept. of Transp. (total fund $20,000). June – Sept. 2006.

 

85.          “OTC Work Program for FY05 OTC Appropriation Through FHWA: Turner-Fairbank Highway Research Center” (PI; Co-PIs: P. Pulat, K.D. Mish and others). Funded by T-FHRC, FHWA (total fund $1.155M). Sept. 2006 – Mar. 2009.

 

86.          “OTC Work Program for the Remaining FY04 OTC Appropriation Funds Through FHWA” (PI; Co-PI: M. Court, J. Pei, C. Ramseyer and others). Funded by FHWA (total fund $797,035). Jan. – Dec., 2008.

 

87.          “Intelligent Asphalt Compaction Analyzer – Proposal for Refinement and Development of a Commercial Prototype” (Co-PI; PI: S. Commuri). Funded by Volvo Road Machinery (total fund $190,782. June 2007 – Aug. 2009.

88.          “Wireless Sensor Packaging for Monitoring Airport Runways and Highway Bridges” (Co-PI with J. Pei (PI) and T. Ibrahim (Co-PI)). Funded by OCAST (total fund $300,000). Dec. 2007 – Nov. 2011.

 

89.          “Continuous Real-Time Measurement of Compaction Quality During the Construction of Asphalt Pavement” (Co-PI; PI: S. Commuri). Funded by Oklahoma Transp. Center (Total fund $99,893). Jan. – Dec. 2009.

 

90.          “Quantifying the Costs and Benefits of Pavement Retexturing as a Pavement Preservation Tool” (Ci-PI; PI: D. Gransberg). Funded by Oklahoma Transp. Center (total fund $195,501). May 2008 – Apr. 2010.

 

91.          “OTC Summer Internship” (PI). Funded by OTC (total fund $74,994). June 2008 – May 2011.

 

92.          “Tube Suction Test for Evaluating Durability of Cementitously Stabilized Soils” (PI; Co-PI: Solanki). Funded jointly by ODOT and OTC (total fund $194,393). Oct. 2008 – Sept. 2010.

 

93.          “Development of Flexible Pavement Database for Local Calibration of MEPDG” (PI). Funded by ODOT (total fund $80,325). Oct. 2008 – Sept. 2010.

 

94.          “Modeling 85th Percentile Speed for Rural Highways for Enhanced Traffic Safety” (PI; Co-PI: L. White). Funded by ODOT (total fund $96,192). Oct. 2008 – Sept. 2010.

 

95.          “Continuous Real-time Measurement of Pavement Quality during Construction” (Co-PI; PI: S. Commuri). Funded by Volvo Road Machinery (total fund $140,393). Jan. – Dec. 2009.

 

96.         “Intelligent Asphalt Compaction Analyzer” (Co-PI; PI: S. Commuri, Haskell Lemon and EST). Funded by Highways for Life, FHWA (total fund $200,000). May 2007 – Dec. 2009.   

 

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