Saffet Yagiz, PhD.

Department
School of Mining and Geosciences
Title
Associate professor
Office
6.202
Email
saffet.yagiz@nu.edu.kz
Phone
+7 (7172) 705724
Website
https://nu.edu.kz/faculty/saffet-yagiz

Education:

  • PhD. Colorado School of Mines, USA
  • M.Sc. Missouri University of Science & Technology, USA
  • B.Sc. University of Ankara, Ankara, Turkey

Employment History:

  • 2017 to date: Associate Professor of Mining Engineering, School of Mining and Geosciences, Nazarbayev University, Nur-Sultan city, Kazakhstan
  • 2016 – 2017: Professor, School of Engineering, Pamukkale University, TR
  • 2012 – 2013: Research Professor, Penn State University, Energy and Mineral Engineering, USA
  • 2011 – 2014: Appointed as the Director of Foreign Languages School of Pamukkale University, TR
  • 2010 – 2016: Associate Professor, School of Engineering, Pamukkale University, TR
  • 2003 – 2010: Assistant Professor, School of Engineering, Pamukkale University, TR
  • 2002 – 2003: Post-Doctoral Fellow, Excavation Engineering & Earth Mechanics Institute of Colorado School of Mines, USA
  • 1998 – 2002: Research Assistant, Excavation Engineering & Earth Mechanics Institute of Colorado School of Mines, USA
  • 1997 – 2002: Teaching Assistant, Department of Mining Engineering, Colorado School of Mines, USA
  • 1993 – 1994: Teaching Assistant,  School of Engineering, University of Nigde, Nigde City, TR
  • 1992 – 1993: Internship, Turkish Government Petroleum Company, (TPAO), Ankara, TR

Awards/Honours:

  • Associate Editor of Tunnelling and Underground Space Technology Journal, [IF:3.92], Elsevier (2019-)
  • Outstanding reviewer of the years (2015 & 2017) recognized by Editorial Board of Tunneling and Underground Space Technology, Elsevier, Netherland
  • Key Note Speaker: 3rd Regional Tunnelling Conference (2017), Tehran, Iran
  • Scholarship from Scientific and Technological Research Council of Turkey (TUBITAK) (2012-2013), TR
  • The best journal paper, as listed Yagiz (2008), awarded by National Group of International Association of Engineering Geologists, (Erguvanli Paper Award in 2009) TR
  • The best graduate student of the year (2000) in the USA recognized by Turkish Government, TR
  • Turkish Government Scholarship (in top 5) for Advanced Study in USA (1995-2002)

Research Interests:

  • Rock Mechanics & Engineering
  • Mechanized Excavation & Tunnelling
  • Rock Mass Characteristics & Testing
  • Performance Analysis of Mechanical Excavators
  • Geo-technical Site Investigation & Drilling

Lectures involved:

  • MINExxx Introduction to Natural Resources Extraction (BSc)
  • MINExxx Tunnelling (BSc)
  • MINExxx Foundation of Mining (MSc)
  • MINExxx Geology for Mining Engineers (MSc)
  • MINE507 Rock Excavation Methods (MSc)
  • MINExxx Research Methods & Ethics (MSc)
  • MINExxx Mechanized Excavation & Tunnelling (MSc)
  • MINExxx Advanced Mechanized Excavation & Tunnelling (PhD)

Journal Publications (in Scopus with h-index=18 as of July, 2019)

  • Yagiz S. Utilizing rock mass properties for predicting TBM performance in hard rock condition. Tunneling and Underground Space Technology, 23: 326-339 (2008). [The best paper awarded by National Committee of IAEG in 2009, Top Hottest 5 articles in TUST in 2008, also in a collection of papers from 1986 to 2016; Development and Application of Tunnel Boring Machines in the Last 30 Years].
  • Yagiz S, Akyol E, Sen G. Relationship between standard penetration and pressuremeter test on sandy silty clays: A case study from Denizli. Bulletin of Engineering Geology and  the Environment, 67: 405-410 (2008)
  • Yagiz S. Assessment of brittleness using rock strength and density with punch penetration test. Tunneling and Underground Space Technology, 24: 66-74 (2009). [Top Hottest 10 articles in TUST in 2009].
  • Yagiz S. Predicting uniaxial compressive strength, modules of elasticity and index properties of rocks using Schmidt hammer. Bulletin of Engineering Geology and the Environment, 68: 55-63 (2009)
  • Yagiz S. Discussion on the article ‘‘Influence of rock brittleness on TBM penetration rate in Singapore Granite” [TUST, 22 (2007) 317–324] and [TUST, 23 (2008) 217–218]. Tunneling and Underground Space Technology, 24:115-116 (2009)
  • Yagiz S, Gokceoglu C, Sezer E, Iplikci S. Application of two non-linear prediction tools to the estimation of tunnel boring machine performance. International Journal of Engineering Application of Artificial Intelligence, 22: 818-824 (2009)
  • Yagiz S. Discussion on the paper entitled “Indentation hardness test to estimate the sawability of carbonate rocks”, [Bull Eng Geol and the Environ. 67, 507-511].  Bulletin of Engineering Geology and the Environment, 68: 437-439 (2009)
  • Yagiz S. Comments on “Multifactorial fuzzy approach to the penetrability classification of TBM in hard rock conditions” [TUST, 24 (2009) 500-505]. Tunneling and Underground Space Technology, 25: 95-96 (2010)
  • Yagiz S, Gokceoglu C. Application of fuzzy inference and non-linear regression methods for predicting rock brittleness. Expert Systems with Applications, 37: 2265-2272 (2010)
  • Yagiz S. Discussion on “Assessment of some brittleness indexes in rock-drilling efficiency” [RMRE, 43(3); 361-370]. Journal of Rock Mechanics and Rock Engineering, 43: 371-373 (2010)
  • Yagiz S. Geomechanical properties of construction stones quarried in Southwestern Turkey. Scientific Research and Essays, 5: 750-757 (2010)
  • Yagiz S. Correlation between slake durability and rock properties for some carbonate rocks. Bulletin of Engineering Geology and the Environment, 70: 377-383 (2011)
  • Yagiz S. Comments on the article “Performance prediction of hard rock TBM using Rock Mass Rating (RMR) system” [TUST, 25 (2010) 333-345]. Tunneling & Underground Space Technology, 26:649-650 (2011)
  • Yagiz S, Karahan H. Prediction of hard rock TBM penetration rate using particle swarm optimization. International Journal of Rock Mechanics and Mining Sciences, 48: 427-433 (2011)
  • Yagiz S. P-wave velocity test for the assessment of some geotechnical properties of rock materials. Bulletin of Materials Science, 34(9): 43-957 (2011)
  • Yagiz S. Comment on “Point load test on meta-sedimentary rocks and correlation to UCS and BTS”, [RMRE, 46(4); 889-896]. Journal of Rock Mechanics and Rock Engineering, 46: 909-912 (2013)
  • Yagiz S, Sezer EA, Gokceoglu C. Artificial neural networks and nonlinear regression techniques to assess the influence of slake durability cycles on the prediction of uniaxial compressive strength and modulus of elasticity for carbonate rocks. International Journal of Numerical and Analytical Methods in Geomechanics, 36: 1636-1650 (2012)
  • Yagiz S. Comments on “Determination of strength parameters and quality assessment of Denizli travertines (SW Turkey)” [Eng Geol, 129–130 (2012) 38–47]. Engineering Geology, 147–148: 149-150 (2012)
  • Sen S, Sezer E.A, Gokceoglu C, Yagiz S. On sampling strategies for small and continuous data with the modeling of genetic programming and adaptive neuro-fuzzy inference system. Journal of Intelligent & Fuzzy Systems (Special Issue), 23: 297-303 (2012)
  • Ghasemi E, Yagiz S, Ataei M. Predicting penetration rate of hard rock tunnel boring machine using fuzzy logic. Bulletin of Engineering Geology and the Environment, 73: 23-35 (2014)
  • Mahdevari S, Shahriar K, Yagiz S, Shirazi MA. A support vector regression model for predicting tunnel boring machine penetration rates. International Journal of Rock Mechanics and Mining Sciences, 72: 214-229 (2014)
  • Yagiz S, Karahan H. Application of various optimization techniques and comparison of their performances for predicting TBM penetration rate in rock mass. International Journal of Rock Mechanics and Mining Sciences, 80: 308-315 (2015)
  • Frough O, Torabi S.R, Yagiz S. Application of RMR for estimating rock mass related TBM utilization and performance parameters: A case study. Journal of Rock Mechanics and Rock Engineering, 48: 1305-1312 (2015)
  • Armaghani DJ, Amin MFM, Yagiz S, Faradonbeh R, Abdullah RA. Prediction of the uniaxial compressive strength of sandstone using various modelling techniques. International Journal of Rock Mechanics and Mining Sciences, 85: 174-186 (2016)
  • Armaghani DJ, Mohamad E.T, Hajihassanic M, Yagiz S, Motaghedie H. Application of several non-linear prediction tools for estimating uniaxial compressive strength of granitic rocks and comparison of their performances. Engineering with Computers, 32: 189-206 (2016)
  • Yagiz S. New equations for predicting the field penetration index of tunnel boring machines in fractured rock mass. Arabian Journal of Geosciences, 10:33 (2017)
  • Armaghani DJ, Mohamad E.T, Narayanasamy M.S, Narita N, Yagiz S. Development of hybrid intelligent models for predicting TBM penetration rate in hard rock condition. Tunneling and Underground Space Technology, 63: 29-43 (2017)
  • Khandelwal M, Faradonbeh R, Monjezi M, Armaghani D.J, Majid M.Z.B.A, Yagiz S. Function development for appraising brittleness of intact rocks using genetic programming and non‑linear multiple regression models. Engineering with Computers, 33: 13-21 (2017)
  • Ghasemi E, Kalhori H, Bagherpour R, Yagiz S. Model tree approach for determining uniaxial compressive strength and Young’s modulus of carbonate rocks. Bulletin of Engineering Geology and the Environment, 77(1): 331-343 (2018)
  • Adoko A.C, Gokceoglu C, Yagiz S. Bayesian prediction of TBM penetration rate in rock mass. Engineering Geology, 226: 245-256 (2017)
  • Yagiz S, Ghasemi E, Adoko A.C. Prediction of rock brittleness using genetic algorithm and particle swarm optimization techniques. Journal of Geotechnical and Geological Engineering, 36(6): 3767-3777 (2018)
  • Madani N, Yagiz S, Adoko A.C. Spatial mapping of the rock quality designation using multi-gaussian  kriging method. Minerals, 8(11): 530 (2018)
  • Yagiz S. The effect of pH of testing liquid on degradability of carbonate rocks. Journal of Geotechnical and Geological Engineering, 36(4): 2351–2363 (2018)
  • Adoko A.C, Yagiz S. Fuzzy inference system-based for TBM field penetration index estimation in rock mass. Journal of Geotechnical and Geological Engineering, 37(3): 1533-1553 (2019)
  • Yagiz S. Comments on the effects of density and porosity on the correlation between uniaxial compressive strength and P-wave velocity. Journal of Rock Mechanics and Rock Engineering 52(2): 635-638 (2019)
  • Armaghani D.J, Marto A, Koopialipoor M, Yagiz S. Application of several optimization techniques for estimating TBM advance rate in granitic rocks. Journal of Rock Mechanics and Geotechnical Engineering, 11(4): 779-789 (2019)
  • Koopialipoor M, Noorbakhsh A, Ghaleini E.N, Armaghani D.J, Yagiz S. A new approach for estimation of rock brittleness based on non-destructive tests. Journal of Non-Destructive Testing and Evaluation, 34(4): 354-375 (2019)
  • Yagiz S, Yazitova A, Karahan H. Application of differential evolution algorithm and comparing its performance with literature to predict rock brittleness for excavatability. (20XX_Underreview)
  • Armaghani D.J, Yagiz S, Mohamad E.T, Zhou J. Prediction of TBM performance in fresh through weathered granite using empirical and statistical approaches. (20XX_Underreview)
  • Buyuksagis I.S, Rostami J, Yagiz S. Development of models for estimating specific energy and specific wear rate of circular diamond saw blades based on properties of carbonate rocks.  (20XX_Underreview)
  • Zhang P, Chen RP, Yagiz S. Real-time Control of Shield Tunnel Construction Schedule Using Hybrid Metaheuristic and Machine Learning Algorithms. (20XX_Underreview)
  • Keshtegar B, Hasanipanah M, ThoiTroung N, Yagiz S, Amnieh, BH. Potential efficacy and application of mathematical-based regressed models to predict TBM performance. (20XX_Underreview)

Selected Proceedings:

  • Yazitova A, Yagiz S. Prediction of drilling rate utilizing common rock properties and driller specifications: Diamond drilling. In: Eurock-2020, June 15-19 2020. Tronheim, Norway
  • Yagiz S, Rostami J. Relationship between key rock properties and Cerchar abrasivity index for estimation of disc cutter wear life in rock tunneling applications. In: Eurock-2020, June 15-19 2020, Tronheim, Norway
  • Yagiz S, Yarali O. Correlations between crucial rock properties and drilling rate index for hard rock tunnels. In: World Tunnelling Congress, WTC2020, May 15-21 2020. Kuala Lumpur, Malaysia
  • Yazitova A, Yagiz S. Prediction of drilling rate utilizing common rock properties and driller specifications: Percussion drilling. In: World Tunnelling Congress, WTC2020, May 15-21 2020. Kuala Lumpur, Malaysia
  • Yagiz S. Yazitova A. Using intact rock brittleness for estimating TBM penetration. In: 4th International Conference on Geotechnical Research and Engineering, 7-9 April 2019, Roma, Italy
  • Madani N, Yagiz S, Adoko AC, Battalgazy N. Uncertainty quantification of rock quality designation at the Gazestan Phosphate deposit. In: Geometallurgy Conference, 14p, Cape Town, South Africa (2018)
  • Yagiz S. Interaction of rock mass characteristics with full-faced tunneling machine performance [Key Lecture]. In: 3rd Regional Tunneling Congress, Sponsored by ITA, 17-19, November; 2017. Tehran, Iran
  • Yagiz S. Utilizing rock brittleness for estimating TBM penetration rate in rocks. In: 12th International Congress on Advances in Civil Engineering, Paper no: ACE 16-1596. Sep 21-23 2016. Istanbul, Turkey
  • Yagiz S. Physical and mechanical properties of travertines utilized for constructions: an example from Denizli. In: 12th International Congress on Advances in Civil Engineering, Paper no: ACE 16-1599 Sep 21-23 2016. Istanbul, Turkey
  • Yagiz S, Gireson K, Kaval O, Arsay AA. Geomechanical aspects of gypsums and dolomites in Kızılyer (Denizli). In: 5th Global Stone Congress Proceedings, Tugrul et al (eds), 162-172, 2016. Antalya, Turkey
  • Yagiz S. The punch penetration test for estimating machine advancement. In: No-Dig Istanbul 2015, 33rd International Congress and Exhibition, in DVD. Paper no: 41 2015. Istanbul, TR
  • Yagiz S, Kim T, Frough O, Torabi SR. Rock mass rating system for predicting TBM utilization. In: Eurock’12-Rock Mechanics for Resources, Energy and Environment, Kwasniewski, M, et al. (Eds), 921-925. September 23-26, 2013. Wroclaw, Poland.
  • Yagiz S, Rostami J. Indentation test for the measurement of rock brittleness. In: 46thS. Rock Mechanics & Geomechanics Symposium, A. Bobet (Eds), 6p. June 24-27, 2012. Chicago, USA
  • Yagiz S, Rostami J, Ozdemir L. Colorado School of Mines approach for predicting TBM performance. In: Eurock’12-Rock Engineering and Technology for Sustainable Underground Construction, Stille H. et al. (Eds) 9p. May 28-30, 2012. Stockholm, Sweden.
  • Yagiz S, Gireson K, Kaval O. Geomechanical and industrial aspects of natural stones quarried in Denizli Surroundings. In: Proceedings of 8th International Marble and Natural Stone Congress, Ersoy B, et al. (Eds), 12p. December 13-15, 2012. Afyon, Turkey.
  • Frough O, Torabi S.R, Yagiz S, Tajik M. Effect of rock mass conditions on TBM utilization factor in Karaj-Tehran Water Conveyance Tunnel. In: ITA-AITES World Tunnel Congress & 38th General Assembly, May 18-23, 2012, Bangkok, Thailand
  • Sen S, Sezer E.A, Gokceoglu C, Yagiz S. On sampling strategies for small and continuous data with the modeling of Genetic Programming and ANFIS. In: 2nd International Fuzzy Systems Symposium, Gokceoglu C, et al. (Eds), 199-202, November 17-18, 2011. Turkey
  • Yagiz S, Merguerian C, Kim T. Geological controls on the breakthrough of tunnel boring machines in hard rock crystalline terrains. In: Eurock’10-Rock Mechanics in Civil and Environmental Engineering, Zhao J. et al. (Eds), 4p. June 15-18, 2010. Lausanne, Switzerland.
  • Yagiz S. Travertine as construction and building material. In: 2nd International Symposium on Sustainable Development, Padem H. et al (Eds), 667-673, June 8-9, 2010. Sarajevo, Bosnia- Herzegovina.
  • Yagiz S, Rostami J, Kim T, Ozdemir L, Merguerian C. Factor’s influencing performance of hard rock tunnel boring machine. In: Eurock’09-Rock Engineering in Difficult Ground Conditions, Vrkljan I. (Ed), 695-700. October 21-31, 2009. Cavtat, Croatia.
  • Yagiz S. Geotechnical considerations on TBM tunneling in rock media. In: 2nd International Conference on New Developments in Soil Mechanics and Geotechnical Engineering, Atalar C, et al. (Eds), 504-511. May 28-30, 2009. Nicosia, Northern Cyprus.
  • Yagiz S, Rostami J, Ozdemir L. Recommended rock testing methods for predicting TBM performance: focus on the CSM and NTNU Models. In: 5th Asian Rock Mechanics Symposium, Majdi A, Ghazvinian A. (Eds), 1520-1530. November 24-26, 2008. Tehran, Iran.
  • Yagiz S. Recent advancements in predicting TBM performance. In: 7th International Congress on Advances in Civil Engineering, October 11-13, 2006. Istanbul, Turkey.
  • Yagiz S. TBM performance prediction based on rock properties. In: Eurock’06-Multiphysics Coupling and Long Term Behavior in Rock Mechanics, Cotthem AV, et al. (Eds), 663-670. May 9-12, 2006. Liege, Belgium.
  • Yagiz S. A model for prediction of tunnel boring machine performance. In: 10th Association of Engineering Geologists Congress. Substructures and Underground Space, Paper no. 383. 10p, the Geological Society of London, September 6-10, 2006. UK.
  • Yagiz S. Machine selection criteria for mechanical excavation of natural materials. In: 11th International Material Symposium, Kovan, V. (Ed), 113-117. April 19-21, 2006. Denizli, Turkey
  • Yagiz S. Overview on geo-mechanical assessments of Denizli travertines in Turkey. In: 10th International Association of Engineering Geologists Congress. City Resources, Paper no. 384. 7p, the Geological Society of London, September 6-10, 2006. UK.
  • Yagiz S, Cheema S. Review and comparison of rock mass classification systems. In: Pakistan Engineering Congress, 2001-2002, paper no. 629, 449-460. 2001. Lahore, Pakistan
  • Cigla M, Yagiz S, Ozdemir L. Application of tunnel boring machines in underground mining development. In: 17th International Mining Congress & Exhibition of Turkey, 155-164. 2001. Ankara, Turkey
  • Yagiz S. Overview of classification and engineering properties of shale for design considerations. In: 2nd Congress on Construction and Materials Issues, (ASCE), Hancher DE. (Ed), 156-165. October 10-13, 2001. Houston, TX USA

Selected Abstract Presentations:

  • Yagiz S, Arsay A.A. Travertine as a construction material. In: 12th International Congress for Applied Mineralogy, Construction Material Section, August, 10-12, 2015 Istanbul
  • Yagiz S, Gireson K, Kaval O, Arsay AA. Geomechanical aspects of gypsums and dolomites in Kızılyer (Denizli), in: V. Global Stone Congress, September, 2014. Antalya, Turkey
  • Yagiz S, Gokceoglu C, Sezer E. Comparison of two non-linear prediction techniques for estimation of some intact rock parameters. In: European Geosciences Union, General Assembly, Geophysical Research Abstracts, 2010. Vienna, Austria
  • Yagiz S, Kim T, Merguerian C. Factors affecting the advancement of full-face tunnel boring machine. In: 63th Geological Congress of Turkey, Abstract, p200-201, MTA General Directory, April 5-9, 2010. Ankara, Turkey
  • Yagiz S, Zorlu K. Using fractal dimension approach to investigate effect of slake durability index cycle integer on aggregate shape. In: 62th Geological Congress of Turkey, Abstract, p398, MTA General Directory, April 13-17, 2009. Ankara, Turkey
  • Yagiz S. Using indentation test to compute rock brittleness index. In: 62th Geological Congress of Turkey, Abstract, p400, MTA General Directory, April 13-17, 2009. Ankara, Turkey
  • Yagiz S, Tuzcuoglu MB, Uysal M. The relationship between Schmidt hardness values, uniaxial compressive strength and index properties of weak rocks. In: 61th Geological Congress of Turkey, Abstract, p41, MTA General Directory, March, 24-28, 2008. Ankara, Turkey
  • Yagiz S. An investigation on the relationship between rock strength and brittleness. In: 59th Geological Congress of Turkey, Abstract, p352, MTA General Directory, March, 20-24, 2006. Ankara, Turkey
  • Yagiz S. Correlation between uniaxial compressive strength and brittleness of selected rock types. In: 57th Geological Congress of Turkey, Abstract, p160, MTA General Directory, March 8-12, 2004. Ankara, Turkey
  • Yagiz S. Relationship between intact and mass rock properties with TBM performance. In: 57th Geological Congress of Turkey, Abstract, p175, MTA General Directory, March 8-12, 2004. Ankara, Turkey
  • Yagiz S. A model for prediction of TBM performance in hard rock condition. In: 56th Geological Congress of Turkey, Abstract, p227, MTA General Directory, April 14-20, 2003. Ankara, Turkey
  • Yagiz S. Application of rock engineering in mechanical tunneling. In: 45th Annual Meeting of Association of Engineering Geologists. In: Program with Abstracts. Technical Session 12: Transportation Engineering Geology. p82. September 23-29, 2002. Reno, NV USA.
  • Yagiz S, Ozdemir L. Geotechnical parameters influencing the TBM performance in various rocks. In: 44th Annual Meeting of Association of Engineering Geologists. In: Program with Abstracts. Technical Session 10: Engineering Geology for Construction Practices. p79. September 29-October 7, 2001. Saint Louis, MO USA.
  • Yagiz S. Geotechnical aspects of Turkish Earthquake, 17 August 1999. In: 44th Annual Meeting of Association of Engineering Geologists. In: Program with Abstracts. Technical Session 11: Natural Hazards: Recognition and Risk Assessment. p80. Sept, 29-October 7, 2001. Saint Louis, MO USA.
  • Yagiz S. Evaluation of rock mass classifications for supporting TBM tunnels. 43rd Annual Meeting of Association of Engineering Geologists. In: Program with Abstracts. Technical Session 23: Material Characterization. p122. September 19-26, 2000. San Hose, CA USA [The best student presentation of AEG 2000].

Selected Project Involved:

  • A New Model Development for Predicting Tunnel Boring Machine (TBM) Performance and Disc Cutter Weariness in Mining and Civil Constructions, PI (FCGP, Under development_2020)
  • Assessment of Intact Rock Properties for Estimating the Weariness of Disc Cutter, Social Policy Grant Project, 2019-2020, PI (On going–)
  • Multivariate Mapping of Geo-metallurgical Variables with Complex Cross-Correlation Characteristics (from January 1, 2017 to December 31, 2020) Co-Principle Investigator (132,975 USD), Grand Award number; 090118FD5336, Faculty Competitive Grant, SMG, NU as Co_PI (On going–)
  • Empirical Stope Design in Kazakhstan Underground Mines: Improving of the Mathews Stability Graph Method (from January 1, 2017 to December 31, 2020) Co-Principle Investigator (118,038 USD), Grand Award number; 090118FD5338, Faculty Competitive Grant, SMG, NU as Co_PI (On going–)
  • Relationship between uniaxial compressive strength and slake durability indices of dolomite-gypsum sequenced rocks operated in Denizli from operational point view. Research Center of Pamukkale University, Denizli, Turkey 2015, PI, Project No:2012FBE015
  • An Investigation on the geomechanical aspects of gypsum as industrial material: An example from Kizilyer, Denizli. Research Center of Pamukkale University, Denizli, Turkey 2013, PI, Project No:2011FBE023
  • Report of geological, geotechnical and hydrogeological properties of ash storage area of Yenikoy (Mugla) Thermal Power Plant. Pamukkale University, Revolving Fund Management Project, PI, 2012
  • Report on the relationship between slake durability indices and physical-lithological-chemical properties of Denizli travertines from quality point view. Research Center of Pamukkale University, 2008, PI, Project No: 2006MHF004
  • Report on usability of Antalya limestone as dimension stone for construction purpose. Pamukkale University, Revolving Fund Management Project, 2008
  • Geotechnical site investigation along the ring road of Denizli City and environment for urbanization. Pamukkale University, Revolving Fund Management Project, 2006
  • Report on geotechnical aspect of extended construction area of Denizli City. Pamukkale University, Revolving Fund Management Project, PI, 2005
  • Manapouri Hydropower Tunnel Project Report, Özdemir L, Yagiz S, Cigla M, Asbury B, Kim T. Excavation Engineering & Earth Mechanics Institute, Colorado School of Mines, CO USA 2002
  • Queens Water Tunnel No.3, Stage 2 Report, Özdemir L, Yagiz S, Rostami J, Asbury B. Excavation Engineering & Earth Mechanics Institute, Colorado School of Mines, CO USA 2001
  • Braintree Weymouth Swear Tunnel Project Report, Özdemir L, Rostami J, Yagiz S, Asbury B, Excavation Engineering & Earth Mechanics Institute, Colorado School of Mines, CO USA 1999
  • The Boston Harbor Outfall Project Report, Özdemir L, Yagiz S, Cheema S, Rostami J, Asbury B. Excavation Engineering & Earth Mechanics Institute, Colorado School of Mines, CO USA 1998