Department of Mining Engineering, Conference / Seminar

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Demirel, Nuray (23)
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Mining & Mineral Processing (10)
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Recent Submissions

Discrete-event simulation of a maintenance policy with multiple scenarios
Turan, Merve Olmez; Gölbaşı, Onur (2020-01-01)
The current study offers a discrete-event simulation algorithm developed to reveal the effects of different maintenance work packages on the failure and the cost profiles of the mining systems. The algorithm is stochastic ...
Prediction of failure mode in weak rock slopes using fuzzy slope mass rating
Yardımcı, Ahmet Güneş; Karpuz, C. (null; 2020-01-01)
Stability of weak rock slopes are threatened by structurally controlled mechanisms or mass failure. Shallow depth lignite beds are commonly exploited by surface mining. Preliminary slope stability analysis is carried out b...
Features of new sites designing on quarry fields of the existing open pit mines of Kuzbass
Plotnikov, Eugene; Kolesnikov, Valery; Simkova, Zuzana; Demirel, Nuray (2020-01-01)
At a number of large open pit mines in Kuzbass, coal production costs have increased due to the deepening of mining operations. In order to reduce them, separate sections of coal mining at the upper horizons are operating ...
Washability and Thermal Properties of Oltutaşı Wastes
Bawani, Muhammad Raheel; Arol, Ali İhsan; Tozsin, Gülşen; Akbulak, Bora; Torun, Abdülvahit (null; 2019-11-02)
Oltutaşı (Jet Stone), also known as black amber, is a fossilized, organic and natural material formed as a result of the transformation of certain trees under high pressure. It is called Oltutaşı because its occurrences ar...
FINITE ELEMENT SIMULATION ON TENSILE CREEP BEHAVIOUR OF UNDERGROUND SUPPORT LINER
Güner, Doğukan; Öztürk, Hasan (2019-09-14)
Polymer-based products are widely used as load-carrying components in different structural applications due to the ease of manufacture, installation, and long lifetime properties. In mining and tunnelling industry, fast-se...
Marble Wastes as a Calcareous Sorbent for SO2 Control in Thermal Power Plants
Altun, Naci Emre (2019-08-20)
In this study, the possibility of using marble wastes for SO2 control in coal-fired thermal power plants was assessed. The goal is suggesting marble wastes as an altarnative calcareous sorbent to limestones for use in WFGD...
Borehole Breakout Numerical Modelling for In-Situ Stress Estimation
Karadeniz, Kutay Emre; Öztürk, Hasan (2019-08-05)
In-situ stress is one of the important rock properties used in different engineering disciplines; there are some techniques applied to determine in-situ stresses. One of them is borehole breakouts to estimate both orientat...
A 5-Parameter Isothermal Creep Model For Polymeric Liners
Güner, Doğukan; Öztürk, Hasan (null; 2019-07-12)
Polymeric materials are commonly used as load-carrying components in different structural applications due to the ease of manufacture, installation and long lifetime properties. In civil and mining engineering application...
An operational data based framework for longwall shearerperformance measurement
Yılmaz, Enver; Erkayaoğlu, Mustafa (2019-07-06)
Coal is an important part of the energy mix in today’s world. In most countries, the deposits that can be economically extracted using surface mining techniques are becoming scarcer, resulting in underground mining, especi...
Küçültülmüş Tambur Testi ile Demir Cevheri Peletleri Aşınma Dayanımı Belirlenmesi
Sivrikaya, Osman; Arol, Ali İhsan (null; 2019-04-19)
The tumbling-abrasion indices of iron ore pellets are measured according to instructions in ASTM E279- 97 (2010). This test measures the resistance of the product pellets under certain abrasive condition in a standard test...
Operation Quality Indicators for Shovel-Truck Systems at Open-Pit Coal Mines
Voronov, Anton; Voronov, Yuri; Voronov, Artyom; Demirel, Nuray (EDP Sciences; 2019-01-01)
Stripping and mining operations at open-pit coal mines are performed mainly by heavy shovel-truck systems (STS). One of the main problems of the STS is a rather low level of its operation quality, an objective assessment o...
An integrated simulation model for opportunistic maintenance
Gölbaşı, Onur; Turan, M. Olmez; Karpuz, Celal (2019-01-01)
Maintenance policies embody various work packages with different intention of implementation. When and how to perform these work packages for which equipment is always a problem that needs to be solved specific to the mach...
Initial crack detection of Brazilian discs by thermal change for different types of rock specimens
Kırmacı, Alper; Erkayaoğlu, Mustafa; Karpuz, C. (null; 2019-01-01)
Rock mechanics is an essential field of mining and civil engineering that has many application areas, such as opening drifts, tunneling activities, and slope stability. The understanding of rock behavior is of key importan...
A modified methodology for preliminary design of weak rock slopes in lignite mines
Yardımcı, Ahmet Güneş; Karpuz, Celal (null; 2019-01-01)
In the last decade, popularity of lignite reserves has tremendously increased as an indigenous alternative to fulfill the growing energy demand of Turkey. Most of the proven reserves are situated in shallow depths and extr...
Comparative Evaluation of CO2 Emissions in Europe and Turkey Using GIS
Demirel, Nuray (2018-11-30)
Sustainable development requires extraction and utilization of energy resources on a viable basis for the welfare of human beings and global growth. An increased focus on sustainable development and global warming imposes ...
Use of Geospatial Queries for Optimum Drilling and Blasting Practices in Surface Mining
Erkayaoğlu, Mustafa (2018-11-22)
Increasing demand of the modern society for energy and raw material strengthens the role of mining in sustainable development. The basic production cycle of surface mining is initiated by drilling and blasting the material...
Development of a Dust Violation Control Tool from Plant Data
Erkayaoğlu, Mustafa (null; 2018-11-22)
Mining is an equipment-intensive industry that utilizes machinery both in production and mineral processing. As an essential part of sustainable development, mining is subject to environmental management from many aspects....
Effect of Spare Parts Policy on Equipment ProductionLoss in Mining
Gölbaşı, Onur (2018-11-22)
Spare parts inventory in a mine incorporates various mechanical to electrical equipment components that need to be available in case of any repair, preventive maintenance, and/or revision on equipment. These parts are gene...
Centrifugal Gravity Concentration as a Novel Way for Extending Limits of Conventional Process Circuits
Altun, Naci Emre; Klein, Bern (2018-10-26)
Thermal Investigation of Some Potential Binders for Iron Ore Pelletizing
SİVRİKAYA, OSMAN; AROL, ALİ İHSAN (null; 2018-10-25)
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