EVALUATION OF THE SOIL CHARACTERISTICS AND LIQUEFACTION RISK IN KAZIMPASA, ADAPAZARI (TURKEY), CASE STUDY

Yıl 2017, Cilt: 1 Sayı: 1, 18 - 24, 15.05.2017

T. Fikret Kurnaz

https://doi.org/10.31127/tuje.316665

Öz

It is necessary to determine the local soil properties in order to safe constructions in settlement areas under the earthquake hazard. In this study, the local soil conditions of Kazimpasa region in Adapazari were investigated by geological, geophysical and geotechnical data in order to evaluate the soil characteristics and liquefaction risk. 19 seismic and 19 drilling studies results have been evaluated to determine the soil characteristics of the study area. The study area is located in the 1st degree earthquake zone. The geology of the study area is generally controlled by Quaternary aged alluvium and Eocene aged claystones. The local soil classes were determined as Z4 in the alluvium and Z2 in some areas controlled by altered claystones in the study area. The P-wave velocities were measured between 333 - 2026 m/s and the S-wave velocities were measured between 118 - 1089 m/s according to the seismic studies. The ground water level in the alluvium is varying between 0 – 3 m. The liquefaction analysis results indicated that some areas covered with alluvium have liquefaction potential considering the soil properties and seismic activities of the study area.

Anahtar Kelimeler

soil investigation, geotechnics, geophysics, liquefaction, Kazimpasa

Kaynakça

• ASTM D4543-08. (2008). Standard Practices for Preparing Rock Core as Cylindrical Test Specimens and verifying Conformance to Dimensional and Shape Tolerances.
• Bol, E., Onalp, A., Ozocak, A., (2008). Liquefiability of Silts And The Vulnerability Map of Adapazari. The 14 th World Conference on Earthquake Engineering, Beijing, China.
• Boulanger, R. W. & Idriss, I. M. (2014). CPT and SPT based liquefaction triggering procedures. Report No. UCD/CGM-14/01, University of California at Davis, 134 pp.
• Bray, J.D., Sancio, R.B., Durgunoğlu, H.T., Önalp, A., Youd, T.L., Stewart, J.P., Seed, R.B., Cetin, O.K., Bol, E., Baturay, M.B., Christensen, C., and Karadayılar, T. (2004). Subsurface characterization at ground failure sites in Adapazari, Turkey, J. Geotech. & Geoenv. Engrg., ASCE, 130 (7), 673-685.
• Cetin, K. O., Seed, R. B., Der Kiureghian, A., Tokimatsu, K., Harder, L. F., Kayen, R. E., & Moss, R. E. S. (2004). Standard penetration test-based probabilistic and deterministic assessment of seismic soil liquefaction potential. J. Geotech. Geoenviron. Eng., 130(12), 1314-1340.
• Das, B.M., (1983). Fundamentals of soil dynamics, Elsevier Science Publishing Co. Inc., s 353-374, New York, USA.
• Deere D.V., Miller R.L., 1966, Engineering Classification and Index Properties of Intact Rock, Department of Civil Engineering, University of Illinois, Urbana. pp. 90-101.
• Erken, A., Okan, R. ve Erdem, A., (2003). The ground behavior of Adapazarı in 17 August 1999 Kocaeli earthquake., V. National Earthquake Conference, Istanbul, in Turkish.
• GDDA (1996). General Directorate of Disaster Affairs, Regulation on buildings to be made in disaster areas. in Turkish.
• Hitoshi, M., Jumpei, A., Masao, K., Kajuro, N., Keiichi, N. ve Sumi, S., (2002). Bedrock structure in Adapazarı, Turkey, inferred from gravity anomary and microseisms, Proceedings of the 11th Japan Earthquake Engineering Symposium, 301-306.
• Idriss, I. M., & Boulanger, R. W. (2008). Soil liquefaction during earthquakes. EERI Publication, Oakland: CA, 235 pp.
• Idriss, I. M., & Boulanger, R. W. (2010). SPT-based liquefaction triggering procedures. Report No. UCD/CGM- 10/02, University of California at Davis, 259 pp.
• Kaya, Z., Irisawa, T. ve Erken, A., (2002). Dynamic behavior of Adapazarı soils, 9th National Congress of Soil Mechanics and Foundation Engineering, 220-227, Eskişehir, in Turkish.
• Kiku, H., Yoshida, N., Yasuda, S., Irisawa, T., Nakazawa, H., Shimuzu, Y., Ansal, A. ve Erken, A. (2001). In-situ penetrating test and soil profiling in Adapazari-Turkey, XV ICSMGE Satellite Conference on “Lessons Learned from Recent Strong Earthquakes, 259-265, Istanbul, Turkey.