Since ZETAS was established in 1988, we have strived to provide our clients with a fully integrated chain of services under the umbrella of Foundation Engineering Practice. These services include soil investigations, design, consultancy, implementation, monitoring and recently added, manufacturing of special tools and machinery. Today, the company together with its group companies each specialized in their field of activity, has grown to be an internationally recognized foundation engineering and contracting company.
ZETAS has been involved in a large number of Civil Engineering projects, including power plants, motorways, bridges, viaducts, tunnels, industrial structures, trade centers, treatment plants, land-fills, high - rise housing, quays, harbors and airports, for which it has been responsible for the construction and design of foundation engineering applications which include deep foundations, soil improvement and retaining structures for deep excavations.
| 1988 | Zetas was established as a small geotechnical engineering firm in Istanbul, Turkey. |
| 1995 | Zetas entered into foundation engineering construction activities. |
| 1998 | Reinforced Earth Insaat Proje ve Ticaret A.S. (REAS) established. |
| 2003 | Zetas, Dubai, UAE Branch established. |
| 2006 | Zetas-ATS Foundation Technologies LLC established in Abu Dhabi, UAE. Zemin Etüd ve Tasarim A.S., soil investigations and design company established. |
| 2007 | Zemin Teknolojisi Uluslararasi A.S. established for international operations. Zemin Teknolojisi Uluslararasi A.S. Kazakhstan branch established. |
| 2008 | Z Makina Teknolojisi A.S. established. Qatar Doha branch of Zemin Teknolojisi Uluslararasi A.S. established. |
| 2009 | ZETAS-AGT MMC established in Baku Azerbaijan. ZETAS Arabia Foundation Technology established in Jeddah, KSA |
| 2010 | ZETAS APEX Foundation Technologies SAL established in Beirut, Lebanon. SisGeo Zemin Aletsel Gözlem Teknolojisi A.S., is established for instrumentation and monitoring. |
| 2011 | ZETAS became a member of Soletanche Freyssinet group of companies. |
| 2012 | Georgia Batumi branch of Zemin Teknolojisi Uluslararasi A.S. established. |
| 2013 | Tanzania branch of Zemin Teknolojisi Uluslararasi A.S. established. |
| 2014 | Zemin Foundation Technology LLC established. |
Technical Creativity
ZETAS with high level of know-how could offer the most efficient and reliable geotechnical solutions. Our team's expertise and dedication guarantee a sustained high quality of services with continuous growth towards advanced technologies in foundation engineering.
Powerful Logistics
The company put a lot of importance in meeting the needs of our clients as soon as possible. The establishment of our Istanbul / Alemdag Warehouse and Yard offers the possibility to provide timely mobilization of well maintained equipment and a continuous supply of materials to our project sites with its production and maintenance activities.
Geographical Territories where Zetas is Active
1. PILING RIGS
 Bauer BG 28 |  Bauer BG 36 |  Bauer BG 40 |
 Casagrande B125 |  Casagrande B250 |  IMT AF 220 |
 Soilmec R-416 |  Soilmec R-618 |  Soilmec-R-312/200 |
Bauer BG 28
Bauer BG 36
Bauer BG 40
Casagrande B125
Casagrande B250
IMT AF 220
Soilmec R-416
Soilmec R-618
Soilmec-R-312/200
2. DRILLING RIGS
 Casagrande C6 |  Casagrande C6 XP Rodio |  Nenzi Neva 3-5 |
 Soilmec SM-14 |  Soilmec SM-400 |  Soilmec SM-401 |
 Soilmec SM-405 |
Casagrande C6
Casagrande C6 XP Rodio
Nenzi Neva 3-5
Soilmec SM-14
Soilmec SM-400
Soilmec SM-401
Soilmec SM-405
3. DIAPHGRAM WALL RIGS and HYDRFRAISES
Bauer BC 30
Bauer BC 32
Bauer MC 96
Jintai SG46
NCB Grab
4. CRANES
Hitachi KH230-3
Liebherr HS855
Northwest 50-D
5. OTHER MACHINERY & EQUIPMENT
Aksa AP66 :: Generator
Aksa APD200 C :: Generator
Atlas Copco XA-125 :: Kompressör
Atlas Copco XAHS 236 :: Compressor
Atlas Copco XAHS 347 :: Compressor
Atlas Copco XAHS 416 Md :: Compressor
Atlas Copco XAHS 426 :: Compressor
Atlas Copco XAS 136 :: Compressor
Desander
Ingersoll Rand 12-235 :: Compressor
JCB-4CX-4WS-SM :: Backhoe Loader
Reverse Circulation Well Machine
SAICI :: Bentonite Mixer
Techniwell TW-351 :: JG Pump
Volvo EC290CL :: Excavator
Please CLICK HERE to download our machinery list in pdf format.
- Kocak, B., Durgunoğlu, H.T., Kulaç, H.F., Velioğlu, N., (2014), Jet Grout Kolonların Zemin Islahında Kullanımı Ve Kalite Kontrol Yöntemleri Bir Vaka Analizi, Zemin Mekaniği ve Temel Mühendisliği Onbeşinci Ulusal Kongresi, ODTÜ, 16-17 Ekim 2014,
- Akcakal, O., Durgunoglu, T., Kocak, B., Tari, T. (2014), 3D Modelling in Deep Excavations Case Studies, TC207 ISSMGE International Conference on Geotechnical Engineering, Soil Structure Interaction Underground Structures and Retaining Walls, 16-
- Durgunoglu, H.T., Kulac H.F., Ikiz, S., Bayman, C., Akcakal, O. (2013), İstanbul Boğazı Kıyısında Top-Down Yöntemi ile Derin Kazı Yapılması Bir Vaka Analizi, Prof. İsmet Ordemiri Anma Toplantısı ve 7. ODTÜ Geoteknik Mühendisliği Sempozyumu, ODT
- Durgunoglu, H.T., Kulac H.F., Ikiz, S., Gunay, A., Akcakal, O. (2013), Top Down Construction Alongside Of Bosphorus A Case Study, Proceedings of the 18th International Conference on Soil Mechanics and Geotechnical Engineering, 2-6 September 2013
- Durgunoglu, H.T., Sahin, A., Akcakal, O. (2013), A Case Study On The Use Of Flexible Earth Retaining Structure In Unstable Slopes, Seventh Int. Conference on Case Histories in Geotechnical Engineering, 29 Apr-04 May Chicago, USA
- Durgunoğlu, H.T., Kulaç H.F., İkiz, S., Günay, A., Akçakal, O. (2012), Yumuşak Killerde Deplasman Kontrollü Derin Kazı Destek Sistemi Seçilmesi Bir Vaka Analizi, Zemin Mekaniği ve Temel Mühendisliği Ondördüncü Ulusal Kongresi, Süleyman Demirel
- Durgunoglu, H.T., Kulac H.F., Ikiz, S., Sevim, O., Akcakal, O. (2012), Offshore Jet Grouting - A Case Study, ISSMGE - TC 211 International Symposium on Ground Improvement IS-GI 31 May & 1 June 2012, Brussels, Belgium
- Durgunoglu, H.T., Ikiz, S., Eser, S., Akcakal, O., Sutman, M. (2012), A Case Study - Installation of Cut-Off Wall In Seyrantepe Dam Project, 4th International Conference on Grouting and Deep Mixing, Deep Foundation Institute, 15-18 February 2012,
- Durgunoglu, H.T., Kulac H.F., Ikiz, S., Sutcuoglu, M., Akcakal O. (2011), Barrettes Socketed to Bedrock Assessment of Their Load Capacity, 15th European Conference on Soil Mechanics and Geotechnical Engineering, 12-15 September 2011, Athens, Greec
- Aykin, K., Akcakal, O., Durgunoglu, H.T. (2010), Comparison of Soil Modeling Using CPT and DMT- a Case Study, 2. International Symposium on Cone Penetration Testing, 9-10 May 2010, California, USA
- Özsu, E., Akcakal, Ö., Ozbatır, M., Durgunoğlu, H.T., (2009), Esnek İstinat Duvarlarında Yeni bir Uygulama - Terranail, 3. Geıteknik Sempozyumu, İMO Adana Şubesi, 3-4 Aralık 2009, Çukurova Üniversitesi, Adana
- Sahin, A., Ekli, O., Durgunoğlu, H.T., Ozbatır, M., (2009), Improvement of Seismic Loading on Reinforced Earth Walls, Proceedings 2nd ICNDSMGE, New Developments in Soil Mechnanics and Geotechnical Engineering, May 28-30, 2009, Near East University
- Yılmaz, G., İkiz, S., Karadayılar, T., Günay, A., (2008), A Case Study on the Importance of Local Geology on Selection of Cut Off Wall Construction Procedure, the 12th IC of IACMAG, October 1-6, 2008, Goa, India
- Durgunoğlu, H.T., (2008), Performance of Deep Soil Nailed Walls, Invited Paper, JKM 5, 6th ICCHGE, Proceeding of Symposium in Honour of Professor James K. Mitchell, August 11-16, 2008, Arlington, VA
- Keskin, H.B., Durgunoğlu, H.T., İkiz, S., (2008), Harmony of Retaining Systems to Various Local Subsoil Conditions A Case Study, Proceedings of the 6th ICCHGE, August 11-16, 2008, Arlington, VA
- Yılmaz, O., and Durgunoğlu, H.T., (2008), An Integrated Shallow Seismic Survey for Geotechnical Modelling A Case Study, Proceedings 3rd International Conference on Site Characterization, April 1-4, 2008, Taipei
- Olgun, G., Martin, J.R., Durgunoğlu, H.T., Karadayılar, T., (2007), Earthquake Performance of Reinforced Earth Embankment Subjected to Strong Shaking and Ground Deformations, 5th International Symposium on Earth Reinforcement, Is Kyushu 07, Novem
- Durgunoglu, H.T., Keskin, H.B., Kulaç, H.F., İkiz, S., and Karadayilar, T. (2007), Performance of Soil Nailed Walls Based on Case Studies, Proceedings XIVECSMGE, September 24-27, 2007, Madrid
- Durgunoglu, H.T., Yilmaz, O. (2007), An Integrated Approach for Estimation of Modulus Degradation in Soft Rocks, 4th International Conference on Earthquake Engineering, Selanik, Yunanistan, 21-28 Haziran 2007, Paper no 1174
- Durgunoğlu, H.T., Tekin, Z., Kulaç, H. F., İkiz, S., Emrem, A.C. (2006), Deep Excavations in Difficult Soil Conditions A Case Study Proceeding of International Conference on New Developments in Geoenvironmental and Geotechnical Engineering, N
- Durgunoğlu, H.T. (2006), Utilization of High Modulus Columns in Foundation Engineering Under Seismic Loadings, US 8th National Conference on Earthquake Engineering, 100th Anniversary of San Francisco 1906 Earthquake, April 18-22, 2006 San Franci
- Durgunoğlu, H.T. (2004), Yüksek Modüllü Kolonların Temel Mühendisliğinde Kullanımı, IMO-Turkiye Mühendislik Haberleri, Sayı 431, 2004/3
- Martin II., J. R., Olgun G., Mitchell, J.K., Durgunoğlu, H. T., (2004), High Modulus Columns for Liquefaction Mitigation", Journal Of Geotechnical and Geoenvironmental Engineering, ASCE, June, 2004.
- Karaman, A., Karadayılar, T., (2004), Identification of Karst Features using seismic wave tomography and resistivity anisotropy measurements Environmental geology, Springer Verlag, January 2004, pp. 957
- Bray, J. D., Sancio, R. B., Riemer, M. and Durgunoğlu, H. Turan (2004), Liquefaction Susceptibility of Fine Grained Soils'' Proceedings 11th ICSD and 3th ICEGE, 7-9 January 2004, UC Berkeley, California, U.S.A.
- Durgunoğlu, H.T., Kulaç, H.F., Arkun, B. (2003), A Deep Retaining System Construction With Soil Nailing In Soft Rocks In Istanbul, Turkey, Soil and Rock America 2003, 22-26 June 2003, Boston
- Durgunoğlu, H.T., Tarı, T., Çatana, C. (2003), Esnek İstinat Yapılarının Depremde Davranışı5. Ulusal Deprem Mühendisliği Konferansı, 26-30 Mayıs 2003, İstanbul
- Sancio, R.B., Bray, J.D., Riemer, M.F., Durgunoğlu, H.T.(2003), An Assesment of the Liquefaction Susceptibility of Adapazarı Silt, 2003 Pacific Conference on Earthquake Engineering, paper 172
- Durgunoğlu, H. T., Kulaç, F. H., Oruç, K., Yıldız, R., Sickling, J., Boys, I. E., Altuğu, T., Emrem, C. (2003), A Case History of Ground Treatment with Jet Grouting Against Liquefaction, for a Cigarette Factory in Turkey, 3rd International Confere
- Sancio, R. B., Bray, J. D, Stewart, J. P., Youd, T. L., Durgunoğlu, H. T., Önalp, A., Seed, R. B., Christensen C., Baturay, M. B., Karadayılar, T. (2002), Correlation Between Ground Failure And Soil Conditions in Adapazarı,Turkey, Soil Dynamics an
- Durgunoğlu, H. T., Kulaç, F., H., Oruç, K., Yıldız, R., Altuğu, T., Emrem, C. (2002), Sıvılaşmaya Karşı Jetgrout Yöntemi ile Zemin Islahına ait bir Vaka Analizi, Zemin Mekaniği ve Temel Mühendisliği Dokuzuncu Ulusal Kongresi, 21-22 Ekim, 2002, Ana
- Durgunoğlu, H. T., Varaksin, S., Karadayılar, T., Nasöz, E., Briet, S. (2002), Ağır Dinamik Kompaksiyon-Yüksek Enerji Kolonları ile Zemin Islahına Ait Bir Vaka Analizi, Zemin Mekaniği ve Temel Mühendisliği Dokuzuncu Ulusal Kongresi, 21-22 Ekim, 20
- Olgun, C. G., Martin, J. R., Mitchell, J. K., Emrem, C., and Durgunoğlu, H. T. (2001), Improved Ground Performance During the 1999 Turkey Earthquakes, Proceedings of the 15th International Conference on Soil Mechanics and Geotechnical Engineering,
- Bray, C. D, Sancio, R. B., Durgunoğlu, H. T., Önalp, A., Seed, R. B., Stewart, J. P., Youd, T. L., Baturay, M. B. Çetin, K. O., Christensen, C., Karadayılar, T., Emrem, C., (2001), Ground Failure in Adapazarı,Turkey, Earthquake Geotechnical Engine
- Emrem, C., Durgunoğlu, H. T. (2000), Türkiye CPT Veri Tabanı ve Mevcut Ampirik Bağıntılar ile Karşılaştırma, Zemin Mekaniği ve Temel Mühendisliği Sekizinci Ulusal Kongresi, 26-27 Ekim 2000, İstanbul Teknik Üniversitesi, İstanbul
- Durgunoğlu, H. T., Karadayılar, T., Bray, D. J., Sancio, R. B., Hacialioğlu, E. (2000), Sismik Statik Penetrasyon Deneyi (SCPT) ile Geoteknik-Geodinamik Zemin Profili, Zemin Mekaniği ve Temel Mühendisliği Sekizinci Ulusal Kongresi, 26-27 Ekim 2000
- Durgunoğlu,H.T., Kulaç, H.F., Oruç, K., Öge, C.E., Eker, F.Ş. (2000), A Case History of Jet Grouting Column Application in Turkey Proceedings of the 4th International Conference on Ground Improvement Geosystems, Helsinki, June 7-9, 2000.
- Durgunoğlu,H.T., Riedmüller, G., Aksoy, S., Kulaç, H.F., (1998), A Case Study on the Effect of an Existing Landslide on Design Decision and Implications-TAG Motorway, Turkey Proceedings of the International Seminar on Natural Disaster Reduction fo
- Durgunoğlu, H.T., Etkesen, Z., Aksoy, S., Akçelik, N., Akyüzoğlu, M., Öge, C.E., (1998), Antalya-Manavgat-Alanya Bölünmüş Yolu Manavgat Köprüsü Yaklaşım Dolguları Zemin Oturmaları Zemin Mekaniği ve Temel Mühendisliği Yedinci Kongresi, ZMTM Türk Mi
- Durgunoğlu, H.T., Kulaç, H.F., İkiz, S., Olgun, C.G., Öge, C., Koçak, D., Tezel, G., Özkul, Z. H. (1997), Remediation of an Existing Solid Waste Disposal Site, GREEN 2, pp.142-149, Eylül 1997, Krakow, Poland.
- Durgunoğlu, H.T., Kulaç, H.F., Olgun, C.G. (1997), Flexible Earth Retaining Structures - Soil Nailing, Engineering and Education, Symposium Honoring Vedat A.Yerlici, 22 Mayıs 1997, pp. 287-296, İstanbul, Türkiye.
- Olgun, C.G., Durgunoğlu, H.T. (1996), Soil Nailing Practice in İstanbul, 10th European Young Geotechnical Engineers Conference, October 1996, pp. 274-283, İzmir, Türkiye.
- Durgunoğlu, H.T., Kulaç, İkiz, S., Öge, C. E., Olgun, C.G. (1995), Two Case Studies on Determination of Hydrocompression Settlements in Russia Proceedings of the 11th African Regional Conference, Cairo.
- Durgunoğlu, H.T., Nur, O., Akbal, Ö., Kulaç, H. F., İkiz, S., Olgun, C.G. (1995), A Case Study on Determination of Soil Improvement Using CPT CPT95 International Symposium on Cone Penetration Testing, Cilt 2, pp. 441-446, Linköping, Sweden.
- Durgunoğlu, H.T., Olgun, C.G., Kulaç, H. F., Karadayılar, T., İkiz, S., Öge, C. (1995), Temel Mühendisliğinde Aletsel Ölçüm ve Gözlemleme İnşaat Mühendisliğinde Gelişmeler II. Teknik Kongre, sh.109-118, İstanbul.
- Durgunoğlu, T. (1994), International Handbook of Earthquake Engineering, Codes, Programs and Examples Chapter 34, Turkey, Edited by Mario Paz, sh. 462, Chapman&Hall, New York.
- Durgunoğlu, T., İkiz, S., Karadayılar T., Kulaç, H.F. (1994), Oturma Kolonu ile Aletsel Gözlem Yapılması Üzerine Bir Vaka Analizi, Zemin Mekaniği ve Temel Mühendisliği Beşinci Kongresi, ZMTM Türk Milli Komitesi, Ortadoğu Teknik Üniversitesi, Cilt-
- Durgunoğlu, T., Karadayılar T., Kulaç, H.F., İkiz, S., Öge, C. (1994), Esnek İstinat Yapıları Üzerine Vaka Analizleri. Zemin Mekaniği ve Temel Mühendisliği Beşinci Kongresi, ZMTM Türk Milli Komitesi, Ortadoğu Teknik Üniversitesi, Cilt-II, sh 328-3
- Durgunoğlu, H.T.,Kulaç, H.F., Karadayılar, T., İkiz, S., Öge, C. (1993), Kil Zeminlerin Davranışlarının CPT ile Modellenmesi Üzerine Bir Vaka Analizi Altıncı Ulusal Kil Sempozyumu, Boğaziçi Üniversitesi, İstanbul.
- Durgunoğlu, H.T., Karadayılar, T., Kulaç, H.F., İkiz, S. (1992), Aletsel Gözlem Hakkında Bir Vaka Analizi: TAG Otoyolu, Zemin Mekaniği ve Temel Mühendisliği Dördüncü Kongresi, ZMTM Türk Milli Komitesi, İstanbul Teknik Üniversitesi, Cilt-II, sh 103
- Durgunoğlu, H.T.,Tezcan, Y., Avcı, C.B., Karadayılar, T., Kulaç, H. F. (1992), A Case Study for Sanitary Landfill", Proceedings of the Mediterranean Conference on Environmental Geotechnology, sh 161-166, Çeşme.
- Durgunoğlu, H.T., Balkır, T., Fırat, Ç., Karadayılar, T., Aksoy, S., Kulaç, H.F. (1991), Yumuşak Taban Zemininde Otoyol Güzergahı Optimizasyonu TAG Otoyolu-Evri Bataklığı", Otoyollarda Geoteknik Problemler ve Çözümleri, Teknik Toplantı 1, KGM Yolla
- Durgunoğlu, H.T., Kulaç, H.F., Karadayılar, T., Baştürk, G., Hoş, T. (1990), Yumuşak Kayalarda Şev Stabilitesi", İkinci Ulusal Kaya Mekaniği Sempozyumu, Türk Ulusal Kaya Mekaniği Derneği, sh 289-198, Ankara.
- Kulaç, H.F., Durgunoğlu, H.T. (1990), Yatay Yüklü Kazık Analiz Yöntemlerinin Karşılaştırılması", Zemin Mekaniği ve Temel Mühendisliği Üçüncü Kongresi, ZMTM Türk Milli Komitesi, Boğaziçi Üniversitesi, Cilt-I, sh 235-250, İstanbul.
- Durgunoğlu, H.T.,Kulaç, H.F., Karadayılar, T., Baştürk, G. (1990), Yüksek Plastisiteli Taban Zemini Killerin Projelendirme Kriterleri", Zemin Mühendisliği 1990/1, sh. 55-66.
In compliance with all its legal obligations internationally; with all local legislation and regulations of the countries that they operate in; with its customer's HSE requirements; and HSE Common Rules of its partner (as Soletanche Freyssinet) ZETAS (as ZETAS Group Companies) presents Policies including commitments to all interested parties.
In conformity with its policies ZETAS is fully committed to
- Act sensitively on environmental protection;
- Take all required preventive actions for maintaining occupational health and safety of all employees including its subcontractors; and
- Establish and maintain Sustainable HSE Management with the participation of interested parties.
Please you can send us all kind of suggestions / feedbacks about HSE hse@zetas.com.tr
Documents
HSE Policies
ISO 9001 & 14001 and OHSAS 18001 Certificates
- Zetas ATS ISO 9001
- Zetas ATS ISO 14001
- Zetas ATS OHSAS 18001
- Zetas DXB ISO 9001
- Zetas DXB ISO 14001
- Zetas DXB OHSAS 18001
- Zetas RUSSIA ISO 9001
HSE Awards / Other Certificates
- Zetas Dubai ZERO ACCIDENT AWARD
- Zetas Kazakistan ZERO ACCIDENT AWARD
- SAFETY AWARD CEREMONY AVRASYA PROJECT SAMATYA SITE in Istanbul Turkey, Mar 2015
- SAFETY AWARD CEREMONY KHANSAHEB PALM RESIDENCE PROJECT in Dubai, Feb 2015
- SAFETY AWARD CEREMONY KHANSAHEB PALM RESIDENCE PROJECT in Dubai, Mar 2015
Our HSE Organisation
Zetas Zemin Teknolojisi A.S.
Alemdag Merkez Mah.Resadiye Cad. No: 69/A
34794 Cekmekoy-Istanbul / TURKEY
+90-216-430 06 00
+90-216-484 41 74
info@zetas.com.tr
Supports Rising Values
Zetas is active and an internationally recognized brand name in foundation engineering and contracting having operations in ten (10) different countries in Central Asia and Middle East including Turkey, as well as being a part of global network of geotechnical resources and expertise.
