Volume 5, Issue 5, October 2016, Pages: 70-81
Received: Sep. 9, 2016;
Accepted: Sep. 28, 2016;
Published: Oct. 19, 2016
Views 2985 Downloads 86
Ayca Cirmik, Dokuz Eylul University Engineering Faculty Department of Geophysical Engineering Buca, Izmir, Turkey
Ozkan Cevdet Ozdag, Dokuz Eylul University Rectorate Cumhuriyet Blv. Alsancak, Izmir, Turkey
Fikret Dogru, Dokuz Eylul University Engineering Faculty Department of Geophysical Engineering Buca, Izmir, Turkey
Eren Pamuk, Dokuz Eylul University Engineering Faculty Department of Geophysical Engineering Buca, Izmir, Turkey
Tolga Gonenc, Dokuz Eylul University Engineering Faculty Department of Geophysical Engineering Buca, Izmir, Turkey
Oya Pamukcu, Dokuz Eylul University Engineering Faculty Department of Geophysical Engineering Buca, Izmir, Turkey
Mustafa Akgun, Dokuz Eylul University Engineering Faculty Department of Geophysical Engineering Buca, Izmir, Turkey
Ahmet Turan Arslan, Dokuz Eylul University Engineering Faculty Department of Geophysical Engineering Buca, Izmir, Turkey
The quality of GNSS data is very significant for determining the locations and kinematic structures of the station points. Therefore, the quality of the measurements needs to be high as well as the geological stratigraphy and the continuity of tectonic mechanism in subsurface of the point where the GNSS station is built should be investigated in detail. For this purpose in this study, the geophysical studies realized in the GNSS station are presented for interpreting the kinematic origin of the results of GNSS measurements which were obtained in Izmir (Turkey). In this scope, the GNSS data processing results and gravity changes were evaluated of the GNSS station wherein obtained GNSS and microgravity data for 3 years. In the results of 3 years measurements, it was pointed out that this GNSS station presented different movements relative to other GNSS stations. Therefore, it is requested to investigate whether the tectonic mechanism or the soil causes these differences. In this way, the soil dynamic analysis was realized by using the S velocity and density values obtained from the multichannel analysis of surface waves (MASW) method and gravity measurements realized in the GNSS station and its surrounding. Consequently, it is pointed out that the soil of GNSS station wherein seismically active region is also affected by the active environment. Therefore, all physical conditions needs to be taken account while interpreting the tectonic features of the findings obtained from this type of GNSS station.
Ozkan Cevdet Ozdag,
Ahmet Turan Arslan,
The Soil Behaviours of the GNSS Station, Earth Sciences.
Vol. 5, No. 5,
2016, pp. 70-81.
Helvaci, C., Ersoy, Y., Sozbilir, H., Erkul, F., Sumer, O. and Uzel, B. (2009). Geochemistry and 40Ar/39Ar geochronology of Miocene volcanic rocks from the Karaburun Peninsula: Implications for amphibole-bearing lithospheric mantle source, Western Anatolia. Journal of Volcanology and Geothermal Research, 185, 181-202.
Pamukcu, O., Gonenc, T., Yurdakul, A. and Kahveci, M. (2012). Microgravity and GPS Studies in the south of Izmir-Karaburun, a Highly Seismic-Risky Area. Geophysics (in Turkish), 26 (2), 59-66.
Akgun, M., Gonenc, T., Pamukcu, O. and Ozyalin, S. (2014). Investigation of the relationship between ground and engineering bedrock at northern part of the Gulf of Izmir by borehole data supported geophysical works. Journal of Earth System Science, 123 (3), 545-564.
Anbazhagan, P. and Sitharam, T. G. (2009). Spatial variability of the depth of weathered and engineering bedrock using multichannel analysis of surface wave method. Pure and Applied Geophysics, 166 (3), 409-428.
Akgun, M., Ozdag, O., C., Ulug, A., Utku, M., Erdican, B., Senkal, G. and Altundag, T., K., (2015). Geological, geophysical and geotechnical studies for understanding 1D-2D soil-bedrock models of skyscrapers in Bayrakli municipality III. National Conference on Earthquake Engineering and Seismology (TDMSK), (In Turkish).
Arslan, A., T., Akgun, M., Koca, M., Y., Atalar, C. and Ozdag, O., C., (2015). Investigation of soil behaivour under static and dynamic conditions in Bayrakli/Izmir by using finite elements methods, Turkish Society For Engineering Geology (MUHJEO), (In Turkish).
Ozdag, O. C., Gonenc, T. and Akgun, M. (2015). Dynamic amplification factor concept of soil layers: a case study in Izmir (Western Anatolia). Arabian Journal of Geosciences, 8 (11), 10093-10104.
Kramer, S. L. (1996). Geotechnical earthquake engineering. Pearson Education India.
Akgun, M., Gonenc, T., Pamukcu, O., Ozyalin, S. and Ozdag, O. C. (2012). Interpretation of Integrated Geophysical Methods For The Determination of Engineering Bedrock: Izmir New City Center, Geophysics, 26 (2), (In Turkish).
Pamukcu, O., Gonenc, T., Cirmik, A., Sindirgi, P., Kaftan, I. and Akdemir, O. (2015). Investigation of vertical mass changes in the south of Izmir (Turkey) by monitoring microgravity and GPS/GNSS methods. Journal of Earth System Science, 124 (1), 137-148.
Rocscience Inc. (2010). 3D tunnel simulation using the core replacement technique. Phase 2 Version 7.0 Tutorial Manual, Toronto, Canada
Lysmer, J. and Waas, G. (1972). Shear waves in plane infinite structures. Journal of Engineering Mechanics, 98 (8716), 85-105.