TY  - JOUR
T1  - Evaluation of Static and Dynamic Behavior of Rigid Columns
AU  - Mungan, Hüseyin
AU  - Sunbul, Ayse Bengu
AU  - Sünbül, Fatih
PY  - 2018
DA  - July
JF  - Eurasian Journal of Civil Engineering and Architecture
JO  - EJCAR
PB  - Serkan ŞAHİNKAYA
WT  - DergiPark
SN  - 2602-3865
SP  - 17
EP  - 26
VL  - 2
IS  - 1
LA  - en
AB  - Construction on soft soilsoften requires utilization of ground improvement techniques in order to solvethe problems associated with bearing capacity and stability. These techniques,in addition to traditional preloading techniques, include various applicationsto the ground based on rigid columns. Today, rigid columns can be modelled on acomputer using the finite element method (FEM) prior to the implementation inthe ground and complex ground-structure interaction mechanisms associated withthe applicability of a suitable soil improvement technique can be investigated.In this study, rigid columns including rammed aggregate piers (RAP), jetgrouting (JG) and bored pile (BP), are tested in realistic finite elementmodels for both static and dynamic cases. Here, we consider 17 m uniformly distributedload foundation in FEM modelling. Long term consolidation analysis is performedin the numerical models to compute stress and deformation variations for staticcase. The performance of rigid columnsin the numeric model is also computed using real earthquake data. In the staticanalysis, the settlement values prior to the ground improvement, was around52.55 cm. After installation, the settlement values has dropped dramatically.Following the RAP installation, the value has decreased to 26.04 cm. We havealso observed a decrease in other two installations where the settlement valuesare 19.11 cm and 7.3 cm for the JG and the BP installations, respectively. Ourdynamic analysis also shows an improvement in the settlement values regardlessof any rigid inclusion ground improvement. It is worthy of note that theseinstallations considerably enhance building performance in the FEM models
KW  - FEM
KW  - Ground improvement techniques
KW  - Static -dynamic analysis
CR  - Brinkgreve, F. Plaxis 2D, ISBN-10: 9058095088, Taylor and Francis Group, USA.
CR  - Coulter, S. and Martin, C. D. 2006. Effect of Jet-grouting on Surface Settlements Above the Aeschertunnel, Switzerland, Tunnelling and Underground Space Technology 21 (5), 542–553.
CR  - Durgunoğlu, H. T., Kulaç, F., İkiz, S. and Karadayılar, T. 1992. An Application on Soil Rehabilitation with Stone Columns, 4. National Congress of Soil Mechanics and Basic Engineering, Istanbul Technical University, Turkey.
CR  - Kanmaz, H. 2014. Rijit Kolonların Farklı Zemin Ortamlarındaki Performansları, MSc Thesis, Civil Engineering Department, Graduate School of Natural and Applied Sciences, Istanbul Kültür University, Istanbul, Turkey.
CR  - Karstunen, M. and Leoni, M. 2009. Geotechnics of Soft Soils. ISBN:978-0-415-47591-4, Taylor&Francis Group, London, UK.
CR  - Mitchell, J.K. and  Katti, R.K. 1981. Soil Improvement-State-of-the-Art Report, Proceedings of 10th International Conference on Soil Mechanics and Foundation Engineering, California, USA.
CR  - Mungan, H. 2016. Zeminin Kırmataş Kolonları ile İyileştirilmesi, MSc Thesis, Civil Engineering Department, Graduate School of Natural and Applied Sciences, Istanbul Kültür University, Istanbul, Turkey.
CR  - Önalp, A. and Sert S., 2010. Geoteknik Bilgisi 3 Bina Temelleri, Birsen Yayıncılık, ISBN: 978-975-511-465-1, Istanbul, Turkey.
CR  - Parlak, S. 2017. Temel Altı Zemin İyileştirme Yöntemi olan Jet-grout Yöntemi İle İyileştirilen Zeminlerin Sonlu Elemanlar Yöntemi İle Sayısal Analizi, MSc Thesis, Civil Engineering Department, Graduate School of Natural and Applied Sciences, Bulent Ecevit University, Zonguldak, Turkey.
CR  - Peng, F.L., Wang, H.L., Tan, Y., Xu, Z.L., Li, Y.L. 2011. Field Measurements and FEM Simulation of a Tunnel Shaft Constructed by Pneumatic Caisson Method in Shanghai Soft Ground, Journal of Geotechnical and Geoenvironmental Engineering 137 (5), 516–524
CR  - Selçuk, L. 2009. Zemin Sıvılaşmasına Karşı Optimum Taşkolon Tasarımının Sonlu Elemanlar Yöntemiyle Modellenmesi, PhD Thesis, Geological Engineering Department, Graduate School of Natural and Applied Sciences,  Ankara University, Ankara, Turkey.
CR  - Toğrol, E. ve Tan, O. 2009. Kazıklı Temeller, Birsen Yayıncılık,  ISBN 978-975-511-327-4, Istanbul, Turkey.
CR  - Shen, S., Wang, Z., Horpibulsuk, S. and Kim, Y. 2013. Jet-grouting with a Newly Developed Technology:The Twin-jet Method, Engineering Geology, 152, 87-95.
CR  - Wood, D. 2004. Geotechnical Modelling, ISBN: 9780419237303, Taylor and Francis Group, USA.
CR  - Xanthakos, P., Abramson, L. and Donald, B. 1994. Ground Control and Improvement. ISBN-10:0471552313, New York, USA.
UR  - https://dergipark.org.tr/tr/pub/ejcar/issue//421704
L1  - https://dergipark.org.tr/tr/download/article-file/503941
ER  -