Investigation of the effect of soil structure interaction on the behavior of concrete faced rockfill dams and assessment of current analysis methodologies

Download

index.pdf

Date

2012

Author

Erdoğan, Emrah Erşan

Metadata

Show full item record

Item Usage Stats

209
views

149
downloads

CFRD (Concrete Faced Rockfill Dam) construction becomes more frequent recently not only because of its secure nature, but also its economical cost where its built up material is feasible to obtain. Although CFRDs are known to be safe compared to other dam types, it is behavior during an earthquake loading still not a well-known aspect since it is mostly constructed in regions of low seismicity until now. Considering this fact, this study‟s primary purposes are set to find the mathematical model size of a “large” domain model to correctly simulate the Soil-Structure Interaction (SSI) effects, to investigate the reliability of the current simulation methods applicable to the modeling of CFRDs and to observe nonlinear performance of CFRDs, mainly focusing on the performance of the face slab. Results of this study clearly state an adequate model size to simulate the SSI effects correctly using the finite element method with the help of the previous studies. The change of the response of the dam depending on the dam and underlying soil moduli and depth is presented clearly. Besides the testing of the performance of a simplified model, the reliability of this approach is judged and found to be not accurate enough when compared to theoretically “exact” results. Crack occurrence on the face slab during a non-linear analysis is presented, its importance is discussed both in magnitude and pattern. A significant spreading of cracking after an earthquake loading is observed.

Subject Keywords

Earth dams., Soil-structure interaction., Finite element method., Dams.

URI

http://etd.lib.metu.edu.tr/upload/12614450/index.pdf
https://hdl.handle.net/11511/21628

Collections

Graduate School of Natural and Applied Sciences, Thesis

Suggestions

OpenMETU
Core

Finite element analysis of deformation behavior of concrete faced Konya Afşar Hadimi dam and comparison of results with measurements Kardeş, Doğuşcan; Çokça, Erdal; Department of Civil Engineering (2019) To eliminate the problem of scarcity of appropriate fill material in the vicinity of construction site, concrete faced dam is a commonly preferred alternative for embankment dams. Functioning as an impervious membrane, the concrete face makes it possible to use dumped rockfill, compacted rockfill or sand-gravel fill as the dam body material. In this study, deformation behavior of Konya Afşar Hadimi Dam, which is a concrete faced rockfill dam, was investigated by finite element analyses using Plaxis and Mida...
Technological characteristics of abrick masonry structure and their relationship with the structural behaviour / Aktaş, Yasemin Didem; Türer, Ahmet; Department of Archaeometry (2006) The aim of this study is to investigate the physical and mechanical properties of construction materials in relation with the structural behaviour of a historic structure. Within this framework, the brick masonry superstructure of Tahir ile Zuhre Mescidi, a XIIIth century Seljuk monument in Konya was selected as case study. The study started with the determination of the basic physical (bulk density, effective porosity, water absorption capacity), mechanical (modulus of elasticity, uniaxial compressive stre...
Analysis of Reinforced Soil Slopes with Limit Equilibrium and Finite Element Methods Özçelik, Gökçe; Paşaoğlu, Özgür; Huvaj Sarıhan, Nejan (null; 2014-09-21) Reinforcing elements such as geotextiles or geogrids are widely used in retaining walls, slopes and embankments since they provide an economical and practical solution. A reinforced wall transitions into a slope as the slope angle with the horizontal decreases. Therefore, the design methodology transitions from lateral earth pressure theory to slope stability analyses. For slope stability problems both limit equilibrium and finite element methods are being used widely. In limit equilibrium solutions, the re...
Contamination of the cement raw material in a quarry site by seawater intrusion, Darica-Turkey Çamur, Mehmet Zeki (Springer Science and Business Media LLC, 2008-02-01) The open pit mining nearby shoreline is planned to be extended into below sea level in order to use additional reserves of the cement raw material (marl). The raw material is currently contaminated by seawater intrusion below a depth of 20 m up to the distance of 90 m from shoreline. Seawater intrusion related contamination of the material used for the cement production was investigated by means of diffusion process for the future two below sea level mining scenarios covering 43 years of period. According t...
Deformation analysis of concrete faced Aydın Karacasu dam and comparison of theoretical results with measurements Tütüncübaşı Tosun, Tuğçe; Çokça, Erdal; Özkan, M. Yener; Department of Civil Engineering (2015) The improvement in design technologies has enhanced the use of different fill materials in construction of the embankment dams. Rockfill is one of the most preferred fill materials for embankment dam. Also, use of different fill material such as sand-gravel has been preferred in recent years. Previous studies on concrete faced sand-gravel fill dam, results of the laboratory experiments and in-situ testing analysis display that using sand-gravel as a fill material is not only cost-effective but also safe and...

Citation Formats

E. E. Erdoğan, “Investigation of the effect of soil structure interaction on the behavior of concrete faced rockfill dams and assessment of current analysis methodologies,” M.S. - Master of Science, Middle East Technical University, 2012.