Show/Hide Menu
Hide/Show Apps
Logout
Türkçe
Türkçe
Search
Search
Login
Login
OpenMETU
OpenMETU
About
About
Open Science Policy
Open Science Policy
Communities & Collections
Communities & Collections
Help
Help
Frequently Asked Questions
Frequently Asked Questions
Guides
Guides
Thesis submission
Thesis submission
MS without thesis term project submission
MS without thesis term project submission
Publication submission with DOI
Publication submission with DOI
Publication submission
Publication submission
Supporting Information
Supporting Information
General Information
General Information
Copyright, Embargo and License
Copyright, Embargo and License
Contact us
Contact us
In-situ and numerical assessments to evaluate site effects in Orta-Çankırı province by comparative geophysical and geotechnical investigations
Download
index.pdf
Date
2016
Author
Eker, Arif Mert
Metadata
Show full item record
Item Usage Stats
21
views
28
downloads
Cite This
Local site conditions of Orta district in Çankırı were deduced from in-situ measurements of dynamic and geotechnical properties of the soils in the context of evaluation of the site effects under a possible earthquake. The study area is under the control of active faults in the form of a strike slip basin and is almost entirely located within this basin. Plio-Quaternary and especially Quaternary alluvial sediment conditions were determined through the development of a geo-engineering database for the study area. The database was constructed by the results obtained by destructive geotechnical and non-destructive geophysical field methods along with geotechnical laboratory tests. In order to identify the dynamic soil behavior within the Orta pull apart basin under a possible ground motion, 1D and 2D numerical analyses utilizing equivalent linear approach were performed. Additionally, an experimental site effect study was carried out by using a single mobile velocimeter in the study area. The results of the microtremor method and the numerical analyses were compared with each other and the performances of the utilized methods were evaluated to determine the site effects at the study area. As a result, the seismic responses of the young and soft sedimentary units within the Orta pull apart basin have been proposed.
Subject Keywords
Seismology.
,
Microseisms.
,
Geophysics
,
Geodynamics.
URI
http://etd.lib.metu.edu.tr/upload/12619939/index.pdf
https://hdl.handle.net/11511/25609
Collections
Graduate School of Natural and Applied Sciences, Thesis
Suggestions
OpenMETU
Core
Evaluation of Site Response with Alternative Methods: A Case Study for Engineering Implications
Sisman, Fatma Nurten; Askan Gündoğan, Ayşegül; Asten, Michael (Springer Science and Business Media LLC, 2018-01-01)
In this paper, efficiency of alternative geophysical techniques for site response is evaluated in two sedimentary basins on the North Anatolian Fault Zone. For this purpose, fundamental frequencies of soils and corresponding amplitudes obtained from empirical horizontal-to-vertical spectral ratio curves from microtremors, weak motions and strong motions are compared with results from one-dimensional theoretical transfer functions. Theoretical transfer functions are computed using S-wave velocity profiles de...
3-D basin geometry model to determine the site effects based on geophysical and geotechnical data: Case study at near-field and high seismicity area of Gölyaka, Düzce, Turkey.
Yousefibavil, Karim; Koçkar, Mustafa Kerem; Akgün, Haluk (2018-04-13)
The near-field and high seismicity of the area makes the determination of the bedrock geometry more complex and pioneers the studies of site response analysis in account for a seismic hazard assessment. Without a good model of basin structure, any powerful calculation method would lack a well-developed basin response. The study has been conducted in the Gölyaka basin that uniquely falls within the bifurcated near-field section of the North Anatolian Fault System. The surface rupture of the 1999 Earthquakes ...
The defect state of Yb-doped ZnO nanoparticles using thermoluminescence study
Hasanlı, Nızamı (Elsevier BV, 2019-09-01)
Shallow trapping centers in Yb-doped ZnO nanoparticles were determined using thermoluminescence (TL) measurements applied in the 10-300 K temperature region. Undoped and Yb-doped ZnO nanoparticles were synthesized by sol-gel method. TL glow curve of undoped nano-particles presented three peaks around 56, 108 and 150 K whereas one additional peak around 83 K was observed in the TL curve of Yb-doped ZnO nano-particles. The increase of Yb concentration in the nanoparticles increased the TL intensity of this ad...
DEVELOPMENT OF A 3-D TOPOGRAPHICAL BASIN STRUCTURE BASED ON SEISMIC AND GEOTECHNICAL DATA: CASE STUDY AT A HIGH SEISMICTY AREA OF GÖLYAKA, DÜZCE, TURKEY
Yousefıbavıl, Karim; Koçkar, Mustafa Kerem; Akgün, Haluk (2018-06-21)
The near-fault situation and high seismicity of an area makes the determination of the bedrock geometry more complex, and in return, it makes this area much more critical and important for the studies of site response analysis in account of seismic hazard assessment. Without a good model of topography and basin structure, any powerful calculation method would be in lack of a well-developed basin response. The study has been conducted in the Gölyaka basin that uniquely falls within the bifurcated section of ...
Site-specific uniform hazard spectrum in Eastern Turkey based on simulated ground motions including near-field directivity and detailed site effects
Sisi, Aida Azari; Askan Gündoğan, Ayşegül; Erberik, Murat Altuğ (Springer Science and Business Media LLC, 2017-04-01)
In this study, stochastic earthquake catalog of the Erzincan region in Turkey is generated based on synthetic ground motions. Monte Carlo simulation method is used to identify the spatial and temporal distribution of events. Ground motion time histories are generated using stochastic simulation methodology. Annual exceedance rate of each ground motion amplitude is calculated through statistical distribution of the complete set of ground motions. The results are compared with classical probabilistic seismic ...
Citation Formats
IEEE
ACM
APA
CHICAGO
MLA
BibTeX
A. M. Eker, “In-situ and numerical assessments to evaluate site effects in Orta-Çankırı province by comparative geophysical and geotechnical investigations,” Ph.D. - Doctoral Program, Middle East Technical University, 2016.