headshot of Ogul Doygun

Ogul Doygun

Assistant Professor
Civil & Environmental Engr


Dr. Doygun is a consultant, researcher, and lecturer with over 15 years of international experience. His engineering experience includes geotechnical design for various civil engineering projects including shallow and deep foundations, dams, embankments, slopes and retaining walls according to State and Federal regulations. In addition to his U.S. engineering practice, he has eight years of experience working as a civil engineer in Germany where he was responsible for geotechnical design of various projects including shallow and deep foundations, landfills, column supported embankments, pavements, retaining walls, and geosynthetics.

During his consulting experience, Dr. Doygun has specialized in providing effective engineering solutions to challenging geotechnical problems including but not limited to slope stability, bearing capacity, seepage, liquefaction, and soil deformations induced by static and seismic loads. His in-situ engineering experience includes construction quality assurance, subsoil exploration, and field instrumentation for various geohazards. Dr. Doygun has extensive experience monitoring and performing geotechnical field investigations (e.g., plate load-, cone penetration (CPT)-, standard penetration (SPT)-, and infiltration tests, strain gauge-, inclinometer-, downhole compressional (P) and shear wave (S) velocity measurements, and coastal erosion evaluations).

Having performed both his master’s and doctoral thesis research in the field of experimental soil mechanics and dynamics, Dr. Doygun has hands-on experience with various geotechnical laboratory tests, including consolidation, triaxial, direct shear, monotonic and cyclic direct simple shear tests. Dr. Doygun has a passionate interest in passing on his theoretical knowledge and consulting experiences to his students. His research interests are in the fields of conventional geotechnical engineering, bio-geotechnical engineering, geotechnical earthquake engineering, and coastal geotechnics with a particular focus on practical implementations in civil engineering practice.


Ph.D., Civil Engineering | Geotechnical Engineering, University of Hawaii at Manoa, 2019

M.Sc., Civil Engineering | Geotechnical Engineering, Technische Universität Darmstadt, 2009

B.Sc., Civil Engineering, Istanbul Technical University, 2005

Wang, Y., Jiang, N., Saracho, A.C., Doygun, O., Du, Y., & Han, X. (2023). Compressibility characteristics of bio-cemented calcareous sand treated through the bio-stimulation approach. Journal of Rock Mechanics and Geotechnical Engineering, 15(2), 510-522.Elsevier BV. doi: 10.1016/j.jrmge.2022.05.007.

Wang, Y.J., Jiang, N.J., Han, X.L., Doygun, O., & Du, Y.J. (2022). Shear behavior of bio-cemented calcareous sand treated through bio-stimulation under the direct shear condition. Bulletin of Engineering Geology and the Environment, 81(10).Springer Science and Business Media LLC. doi: 10.1007/s10064-022-02907-5.

Brandes, H., Doygun, O., Francis, O., Zhang, G., Rossi, C., Yang, L., & Togia, H. (2021). CRESI: A susceptibility index methodology to assess roads threatened by coastal erosion. Ocean & Coastal Management, 213, 105845.Elsevier BV. doi: 10.1016/j.ocecoaman.2021.105845.

Doygun, O., Brandes, H.G., & Polito, C.P. (2021). Large-Strain Damping of Sands: Parameter Effects. Journal of Geotechnical and Geoenvironmental Engineering, 147(9).American Society of Civil Engineers (ASCE). doi: 10.1061/(asce)gt.1943-5606.0002572.

Doygun, O., & Brandes, H.G. (2020). High strain damping for sands from load-controlled cyclic tests: Correlation between stored strain energy and pore water pressure. Soil Dynamics and Earthquake Engineering, 134, 106134.Elsevier BV. doi: 10.1016/j.soildyn.2020.106134.

Doygun, O., Brandes, H.G., & Roy, T.T. (2019). Effect of Gradation and Non-plastic Fines on Monotonic and Cyclic Simple Shear Strength of Silica Sand. Geotechnical and Geological Engineering, 37(4), 3221-3240.Springer Science and Business Media LLC. doi: 10.1007/s10706-019-00838-9.