Department of Mining Engineering, Thesis

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Thesis (490)

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Author
Çelebi, Neş'e (3)
Acaralp, Orhan Zafer (2)
Akdemir, Ünal (2)
Akçakoca, Hamdi (2)
Akün, M. Ertan (2)

Subject
Mining engineering. (43)
Metallurgy. (18)
Rock mechanics. (17)
Coal mines and mining (16)
Coal mines and mining. (12)

Date Issued
1965 - 1979 (98)
1980 - 1999 (203)
2000 - 2019 (182)
2020 - 2021 (7)

Recent Submissions

Microscopic fuel consumption modelling for haulage trucks using discrete-event simulation
Kına, Elif; Gölbaşı, Onur; Department of Mining Engineering (2021-2-5)
Mining is one of the machine-intensive sectors, and a vast amount of energy is consumed in many stages of mining operations. Among these operations, haulage systems hold a significant share in energy consumption. At this p...
Development of a virtual reality-based serious game for occupational health and safety training in underground mining
Gürer, Servet; Erkayaoğlu, Mustafa; Sürer, Elif; Department of Mining Engineering (2021-2-5)
Mining is a hazardous multi-disciplinary sector for workers and the working environment. It can be said that one of the most important methods to combat these risks is training. These pieces of training are usually given w...
Uncertainty assessment for the supply chain system of a concrete company using Monte Carlo Simulation.
Serbest, İnanç Taha; Gölbaşı, Onur; Department of Mining Engineering (2021-2)
Concrete is the primary construction material and may be supplied in varying strength values according to customer demand. The profitability of concrete operations is very low, with a profit margin changing between 0.1 and...
Thermographic analysis of heat generation during ucs testing of rocks
Kırmacı, Alper; Erkayaoğlu, Mustafa; Department of Mining Engineering (2020)
SMining activities concentrate on the production of underground resources for energy generation and raw material requirements worldwide, as it is also the case in Turkey. For this reason, the exploration of new resources p...
Tensile opening mode fracture toughness measurements and size effect investigations with Brazilian disc type rock specimens
Şar, Elifnaz .; Tutluoğlu, Levend; Department of Mining Engineering (2020)
The flattened Brazilian disc(FBD)geometrieswere subjected to compressive loads at the loading ends. Tensile stresses were generated indirectly at the center of the disc specimens. Cracks were initiated, and they propagated...
Effect of loading span on tensile mode fracture toughness for three-point bend specimen geometries
Karataş Batan, Ceren; Tutluoğlu, Levend; Department of Mining Engineering (2020)
Straight notched disk bending specimen geometry has a potential to find size independent mode I fracture toughness, since the thickness of the disk loaded by threepoint bending can be increased. Increasing the thickness an...
Creep behaviour analysis of thin spray-on liners
Güner, Doğukan; Öztürk, Hasan; Department of Mining Engineering (2020)
Thin Spray-on Liner (TSL) is a relatively thin (2–5 mm) and fast-setting liner material used by spraying onto rock surfaces to support underground excavations. Areal support materials that are sprayed onto the rock, such a...
Estimation of rock mass rating values with geostatistical analysis
Özkan, Esma Selma; Erkayaoğlu, Mustafa; Department of Mining Engineering (2019)
The raw material of many goods, products, and equipment used by humankind on earth or even in space are obtained from extracted and enriched minerals from the surface or underground mines. A large proportion of the energy ...
Beneficiation of carbonaceous lead and zinc ores by a combined flotation and leaching method
Sarılar, Sena; Atalay, Mustafa Ümit.; Department of Mining Engineering (2019)
Within the scope of this thesis study carbonaceous lead and zinc ore obtained from Yozgat – Akdağmadeni region of Turkey was used. Main objective of the study is to obtain lead concentrate at possible maximum grade and rec...
Mode I fracture toughness and tensile strength investigation on molded shotcrete brazilian specimen
Tayfuner, Tuğçe; Tutluoğlu, Levend; Department of Mining Engineering (2019)
Tensile opening mode I loading state is important for shotcrete-concrete type materials, since these are weak under tension. Brazilian type splitting tests are commonly used for checking the structural effectiveness of con...
Obtaining hybrid fuel briquettes using local biomass and fossil fuel resources
Ulusoy Tasar, Aslı; Altun, N. Emre.; Department of Mining Engineering (2019)
This study aims at obtaining a hybrid fossil fuel-biomass fuel by blending olive pomace and lignite in varying amounts (10-50% by weight). The main objective is to combine the positive characteristics of both fuel types to...
A New approach to 3-dimensional optimization of ultimate pit geometry for open pit mines with variable overall slope angles
Altuntov, Firdevs Kübra; Erkayaoğlu, Mustafa; Department of Mining Engineering (2019)
The mining activities have high economic risks and the determination of the optimum ultimate pit limit of an ore body greatly affects the economic feasibility of an open pit mine. Due to necessity of determining optimum pi...
Investigation of fracture toughness on flattened Brazilian disc type molded shotcrete specimens
Yoncacı, Selin; Tutluoğlu, Levend; Department of Mining Engineering (2019)
Monitoring behavior of cracks generated by various reasons in shotcrete/concrete is of crucial importance for the stability of structures in various industries. Despite the need of understanding the crack initiation and pr...
Risk assessment of Gördes nickel-cobalt process plant
Torun Bilgiç, Elif; Demirel, Nuray; Department of Mining Engineering (2019)
High pressure acid leach (HPAL) is commonly utilized hydrometallurgical process for low grade laterites for the extraction of nickel and cobalt. The plant malfunctions bring about catastrophic accidents that prove the irre...
Operational factors affecting maturity of units in the Beypazarı trona mine
Beşir, Tuğçe; Arol, Ali İhsan; Department of Mining Engineering (2019)
Solution mining method is used for extracting trona ore from underground at the Beypazarı trona mine. Two vertical and one directionally drilled well are combined in a target trona seam as a production unit. Solvent contai...
In-situ stress magnitude and orientation determination of Ankara Kazan district from FMI log
Karadeniz, Kutay Emre; Öztürk, Hasan; Department of Mining Engineering (2019)
Wellbore instability is a major problem in the oil and gas industry. Rock failures occur around the borehole when the induced local stresses exceed the rock strength. Borehole breakouts and drilling-induced fractures (DIFs...
Development of a dynamic maintenance algorithm with multiple scenarios: a case study for surface mining
Ölmez Turan, Merv; Gölbaşı, Onur; Department of Mining Engineering (2019)
Surface mining operations such as ore extraction and overburden stripping activities highly depend on machine performance. These machines’ operational plan aims to handle required amount of material within a specific perio...
Discrete event simulation of a shearer performance for a longwall operation
Yılmaz, Enver; Karpuz, Celal; Erkayaoğlu, Mustafa; Department of Mining Engineering (2018)
Coal is an essential part of energy generation worldwide and has a major role in sustainable development. The amount of coal that can be extracted by surface mining is getting less which makes efficient underground mining ...
Investigation of the pre-concentration possibility of scandium ores
Altınsel, Yiğit; Altun, Naci Emre; Topkaya, Yavuz Ali; Department of Mining Engineering (2018)
This study was aimed at investigating the possibility of obtaining a scandium (Sc) pre-concentrate from Eskişehir-Mihalıççık scandium bearing clayey ore through mineral processing methods namely attrition scrubbing, enhanc...
Determination of RQD by digital image analysis
Sarıçam, İ. Turgut; Öztürk, Hasan; Department of Mining Engineering (2018)
Digital image processing and analysis methods allow us to automate routine tasks. Rock Quality Designation (RQD) is a rock quality index used in rock mechanics and geotechnical designs of slopes and underground excavations...
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