Engineering Geology and Bearing Capacity Calculation of Soil in Karacadağ Region

Öz

Geotechnical investigations are highly essential for optimal planning of quality, time, and cost management in engineering structures. Geotechnical analysis is used to determine the physical and chemical properties of soils by performing laboratory and field tests. This study examines the geotechnical engineering of the Karacadag region in the Southeast Anatolia region of Turkey by analyzing soil data from the study area in Diyarbakır city, Sur County, Yukarıkılıctası district and block no 7018, parcel 1. The aim is to obtain general information about the soil in this area and to produce faster and more practical solutions in terms of quality and economic aspects in construc-tion projects. Drilling was performed in the field using UD and SPT tubes, and various laboratory tests such as sieve analysis and Atterberg limits were conducted on the samples taken. Using the parameters obtained from these tests, the bearing capacity of the basalt-rock soil related to the Karacadag Volcanism was calculated using the Turkish Building Earthquake Regulation (TBDY) and Plaxis 2D geotechnical modeling program. The bearing capacity calculation was performed using different methods, and the results were compared and evaluated in terms of safety and the effect of the parameters considered in the calculation.

Anahtar Kelimeler

• Karacadag
• rock soil
• engineering geology
• ultimate bearing capacity
• plaxis

Kaynakça

1. Aksu, B., & Yılmaz, H. (2021). Seismological assessment of the East Anatolian Fault. Earthquake Engineering Review.
2. Amin Soltanianfard, M., et al. (2023). Experimental investigation of rock-like specimens' interface using 3D printing. International Journal of Geomechanics.
3. Bowles, J. E. (1996). Foundation Analysis and Design. McGraw-Hill.
4. Chen, H., & Zhang, L. (2023b). Machine learning-based prediction of end-bearing capacity of rock-socketed shafts. Rock Mechanics and Rock Engineering.
5. Chen, H., Zhu, H., & Zhang, L. (2023a). Semi-analytical solution for ultimate bearing capacity of smooth and rough circular foundations on rock. International Journal for Numerical and Analytical Methods in Geomechanics.
6. Çetin, K., & Acar, S. (2023). Seismic risk and fault systems in the Eastern Anatolian region. Journal of Geological Research.
7. Hansen, J. B. (1970). "A Revised and Extended Formula for Bearing Capacity." Danish Geotechnical Institute Bulletin, 28, 5-11.
8. Karakaya, S., et al. (2022). Geotechnical characteristics of volcanic terrains in the Diyarbakır region. Geological Journal.

9. Kaya, E., et al. (2021). Faulting patterns and seismic hazards in the eastern Anatolian region. Tectonic Studies Journal.
10. Meyerhof, G. G. (1951). "The Ultimate Bearing Capacity of Foundations." Geotechnique, 2(4), 301-332.
11. Parry, R. H. G. (1977). Soil Plasticity and Strength. Thomas Telford.
12. Terzaghi, K. (1943). Theoretical Soil Mechanics. John Wiley & Sons.
13. Vesic, A. S. (1973). "Analysis of Ultimate Loads of Shallow Foundations." Journal of the Soil Mechanics and Foundations Division, 99(1), 45-73.
14. Xu, Q., et al. (2023). Failure analysis of excavation in sand cobble stratum under cutting disturbance. Engineering Failure Analysis.
15. Zhao, Y., et al. (2023). Mechanical behavior of sandstone during post-peak cyclic loading under hydromechanical coupling. International Journal of Mining Science and Technology.