Designing with Geosynthetics

Our Publications

Did you know?

That Dr. Dhani Narejo has been recognized twice by IGS for his contribution to the geosynthetics literature.

That he writes regularly on a broad range of topics.

That his papers are often the basis of design procedures (such as for geonet structural design and geomembrane puncture protection design).

Journal Papers

Dhani Narejo, “Determining Transmissivity of Synthetic Drainage Materials at Low Gradients”, Geotextiles and Geomembranes, Volume 23, Issue 6, December 2005.
Dhani Narejo, “Opening Size Recommendations for Separation Geotextiles Used in Pavements”, Geotextiles and Geomembranes, Vol. 21, Issue 4, August 2003, pp. 257-264.
Dhani Narejo, “A Simple Tilt Table Device to Measure Index Friction Angle of Geosynthetics”, Geotextiles and Geomembranes, Vol.21, Issue 1, February 2003, pp. 49-57.
Wilson-Fahmy, R.F., Narejo, D.B. and Koerner, R.M., “Puncture Protection of Geomembranes, Part I: Theory”, Geosynthetics International, Vol. 3, No. 5, 1996, pp. 605-628.
Narejo, D.B., Koerner, R.M. and Wilson-Fahmy, R.F., “Puncture Protection of Geomembranes, Part II: Experimental”, Geosynthetics International, Vol. 3, No. 5, 1996, pp. 629-653.
Koerner, R.M., Wilson-Fahmy, R.F. and Narejo, D.B., “Puncture Protection of Geomembranes, Part III: Examples”, Geosynthetics International, Vol. 3, No. 5, 1996, pp. 655-676.
Narejo, D.B., “Effect of Moisture Content on Free Swell of the Clay Component of Geosynthetic Clay Liners”, Testing and Acceptance Criteria for Geosynthetic Clay Liners, ASTM STP 1308, L. Well (Ed.), American Society for Testing & Materials, Philadelphia, PA, pp. 23-29.
D.B., Narejo and G.Q. Memon, “Compatibility of Geosynthetic Clay Liners with Three Pennsylvania Municipal Solid Waste Leachate”, Geosynthetics International, Vol. 2, No. 5, 1995, pp. 889-892.
D.B. Narejo, “Three Levels of Geomembrane Puncture Protection”, Geosynthetics International, Vol. 2, No. 4, 1995, pp. 765-768.
D.B. Narejo, “A Comparison of Puncture Behavior of Smooth and Textured HDPE Geomembranes”, Geosynthetics International, Vol. 2, No. 4, 1995, pp. 699-706.
D.B. Narejo and M. Shettima, “Use of Recycled Automobile Tires to Design Landfill Components”, Geosynthetics International, Vol. 2, No. 3, 1995, pp. 619-625.
Koerner, R.M. and Narejo, D.B., “On the Bearing Capacity of Hydrated GCLs”, ASCE, Journal of Geotechnical Engineering Division, Vol XX, No. XX, 1994.
Narejo, D.B. and Koerner, R.M., “A Dynamic Filtration Test for Geotextile Filters”, Technical Note, Journal of Geotextiles and Geomembranes, Vol. 11, No. 4-6, 1992, pp. 395-400.

Magazine Papers

Dhani Narejo, “Green Roof Market Growth: Opportunities and Challenges”, Geosynthetics, Volume 28, Number 5, pp. 35-43.
Narejo, D., and Li, M., “Innovation in Biplanar Geonet Structure to Increase Allowable Strength”, Geosynthetics, May 2010.
Dhani Narejo, Mark Marienfeld, Bill Hawkins, and Bruce Lacina, “Ensuring Long-term Pavement Performance: A Benefit/Cost Approach to Separation Geotextiles”, GFR, Vol. 23, No. 5, pp. 28-31.
Dhani Narejo, “(Geo)Synthetics for Green Roofs”, GFR, January/February 2005, pp. 34-37.
Richard Thiel, Gregory Richardson, and Dhani Narejo, “Geocomposite Drainage Layers in Landfills, Part 1 of 4: Introduction”, GFR, January/February 2005, Vol. 23, No. 1, pp. 26-29.
Richard Thiel and Dhani Narejo, “ Geocomposite Drainage Layers in Landfills, Part 2 of 4: Geocomposites on Bioreactor Landfill Sideslopes to Control Seeps and Gas”, GFR, March 2005, Vol. 23, No. 2, pp. 20-25.
Richard Thiel and Dhani Narejo, “Geocomposite Drainage Layers in Landfills, Part 3 of 4: Specifying Geocomposites in Leachate Collection Systems Accounting for Staged Development”, GFR, April 2005, Vol. 23, No. 3, pp. 22-28.
Richard Thiel and Dhani Narejo, “Geocomposite Drainage Layers in Landfills, Part 4 of 4: Geocomposite Lamination Strength Requirements”, GFR, May 2005, Vol. 23, No. 4, pp. 20-26.
Dhani Narejo, Mark Marienfeld, Bill Hawkins & Bruce Lacina, “Ensuring Long-term Pavement Performance Using Separation Geotextiles”, Better Roads, January, 2005, Volume 75, Number 1, pp. 26-27.
Dhani Narejo, “Creative Cover Designs, Part 1: Slope Length”, GFR, June/July 2004, pp. 38-40.
D. Narejo & G. Richardson, “Designing with GRI Procedure GC8”, GFR, July/August, 2003, pp. 20-23.
D. Narejo & B. Ramsey, “Understanding Drainage Design”, Fabric Architecture, September/October 2002, pp. 35-37.
Dhani Narejo, “Advances in Textile Manufacturing Technology Make it Possible to Achieve Major Improvements in Geotextile Quality”, Geotechnical Fabrics Report, June/July 2002.
Dhani Narejo, “An Evaluation of Filtration Characteristics for Silt Fence Fabrics”, Geotechnical Fabrics Report, March 2002.
Dhani Narejo, Kristen Hardin, & Boyd Ramsey,, “Geotextile Specifications: Those Vexing Qualifiers”, Geotechnical Fabrics Report, September 2001, pp. 24-27.

Conference Papers

Allen, S., and Narejo, D., “Point Strains in HDPE Geomembranes with and without GCL Protection Layers”, 3^rd International Symposium on Geosynthetic Clay Liners, Wurzburg, Germany, 15/16 September 2010.
Dhani Narejo & Sam Allen, “Time-stepped Approach to the Landfill Drainage Design Using Creep Behavior of Drainage Geocomposites”, Global Waste Symposium, October 2010, San Antonio, TX.
Dhani Narejo, “Historical Performance of Geoweb Walls Exposed to Sun”, ASTM D35 Symposium on Geosynthetics Material Durability: Field and Laboratory Experiences” January 29, 2010, San Antonio, TX.
Allen, S. and Narejo, D., “Effectiveness of Geosynthetic Clay Liners as Geomembrane Cushions in Low Pressure Applications”, Ninth International Conference on Geosynthetics, Brazil, 2010.
Narejo, D. and Allen, S., “Effect of Sustained Loading on Structural Stability of Biplanar Geonets”, Ninth International Conference on Geosynthetics, Brazil, 2010.
Narejo, D., “Quality Assurance of Geosynthetics and its Implications for Developing Economies”, Proceedings of Conference “Geosynthetics India 2008”, 19-21 November 2008, Hyderabad, India.
Dhani Narejo, “Design Strength of Geonet Geocomposites”, Geosynthetics 2007 Conference Proceedings, January 16-19, 2007, Washington, DC.
Dhani Narejo, Ed Kavazanjian and Richard Erickson, “Maximum Protrusion Size under Geomembrane/GCL Composite Liners”, Geosynthetics 2007 Conference Proceedings, January 16-19, 2007, Washington, DC.
Sam Allen, Jarrett Nelson and Dhani Narejo, “Measuring the Strand Inclination Angle of a Biplanar Geonet”, Geosynthetics 2007 Conference Proceedings, January 16-19, Washington, DC.
D. Narejo & H. Ng, “The Structure and Performance of PermaNet Drainage Geocomposites”, Proceedings of International Conference on New Developments in Geoenvironmental and Geotechnical Engineering, 9-11 November 2006, Incheon, Korea
D. Narejo, “An Evaluation of Potential Clogging of Geonets and Geocomposites due to Suspended Soil Particles”, Proceedings of NAGS 2005 / GRI 19 Conference Joint Conference, Las Vegas, US, December 14 to 16, 2005.
B. Ramsey and D. Narejo, “Using Woven and Heat-bonded Geotextiles in Geonet Geocomposites”, Geotechnical Special Publication Number 130-142, Conference Proceedings of ASCE Geo-Institute Conference Geofrontiers 2005, Austin, Texas, January 23-26, 2005.
R. Thiel and D. Narejo, “Lamination Strength Requirements for Geonet Drainage Geocomposites”, Geotechnical Special Publication Number 130-142, Conference Proceedings of ASCE Geo-Institute Conference Geofrontiers 2005, Austin, Texas, January 23-26, 2005.
B. Ramsey & D. Narejo, “Manufacturing Nonwoven Needlepunched with Opening Size Larger than 0.2 mm”, Geotechnical Special Publication Number 130-142 & GRI 18, Conference Proceedings of ASCE Geo-Institute Conference Geofrontiers 2005, Austin, Texas, January 23-26, 2005.
C. Miller and D. Narejo, “State of the Green Roof Industry in the United States”, Geotechnical Special Publication Number 130-142 & GRI 18, Conference Proceedings of ASCE Geo-Institute Conference Geofrontiers 2005, Austin, Texas, January 23-26, 2005.
Dhani Narejo, “Long-term Performance Considerations for Geonets and Geocomposites”, 57^th Canadian Geotechnical Conference, Quebec City, Quebec, Canada, October, 2004, pp. 12-15.
Narejo, D. Allen, S., “Using the Stepped Isothermal Method for Geonet Creep Evaluation”, Proceedings of Euro-Geo 3 Conference, Munich, Germany, March 2004, pp. 539-544.
Dhani Narejo, “Design, Performance and Economics of Separation Geotextiles in Pavements”, Proceedings of ASCE Geo-Trans 2004, Geotechnical Special Publication No. 126, July 27-31, 2004, Los Angeles, CA, pp. 1042-1049.
D. Narejo “Development of Equipment and Test Methodology for Studying Particulate Clogging of Geonet Core Component of Drainage Geocomposites”, Proceedings of 56^th Canadian Geotechnical Conference, Winnipeg, Canada, September/October, 2003.
D. Narejo, N. Ivy & R. Erickson, “The Changing World of Geosynthetics”, Proceedings of the16^th GRI Conference on “Hot Topics in Geosynthetics-III”, Philadelphia, December 16, 2002, pp. 274-290.
D. Narejo, G. Corcoran & R. Zunker, “An Evaluation of Geosynthetic Clay Liners to Minimize Geomembrane Leakage Caused by Protrusions in Subgrades and Compacted Clay Liners”, IS Nuremberg 2002, International Symposium on Clay Geosynthetic Barriers, 15 to 18 April, 2002, Nuremberg, Germany.
Dhani Narejo and Aigan Zhao, “Preventing Soil Erosion in Mechanically Stabilized Earth Walls and Slopes”, International Erosion Control Association, Proceedings of Conference 33, Feb 25 to March 1, 2002, Orlando, FL., pp. 429-438.
D.B. Narejo, “Intrusion of Nonwoven Needle Punched Geotextiles into Geonets”, Proceedings of Geofilters’ 96, Montreal, Quebec, 1996, pp. 361-367.
Narejo, D.B., Wilson-Fahmy, R.F. and Koerner, R.M., “Geomembrane Puncture Evaluation and Uses of Geotextile Protection Layers”, Proceedings of ASCE/PennDOT Conference, Hershey, PA 1993, pp. 1-16.

Manuals and Reports

George Koerner and Dhani Narejo, “Direct Shear Database of Geosynthetic-to-Geosynthetic and Geosynthetic-to-Soil Interfaces”, GRI Report #30, June 14, 2005.
Robert Bachus, Dhani Narejo, Richard Thiel & Teyang Soong, “GSE Drainage Design Manual”, May 2004.
Dhani Narejo & Greg Corcoran, “GSE Geomembrane Protection Design Manual”, First Edition, April 2002.
Dhani Narejo, “Ensuring Long-term Pavement Performance Using Separation Geotextiles”, A Report Developed for Geosynthetics Materials Association (GMA).
Ragui Wilson-Fahmy, Dhani Narejo and Robert Koerner, “A Design Methodology for the Puncture Protection of Geomembranes”, GRI Report #13, September 26, 1994.
Dhani Narejo, Robert Koerner and Ragui Wilson-Fahmy, “Experimental Puncture Behavior of HDPE Geomembranes Without, Then With, Various Protection Materials”, GRI Report #10, July 27, 1993.

Ph.D Thesis

Narejo, D.B., “Puncture Behavior of HDPE Geomembranes”, Ph.D. Thesis, Geosynthetic Institute, Drexel University, 1994.

Patents

US Patent #7470094, “Development of a New Geonet Structure for High Stress Applications”.