Scientific Mining Journal

Scientific Mining Journal

Volume 56 - No 1 (March 2017)
A New Production Method Proposal for Soma Eynez Coal Field
Pages 5 - 12 B.Ünver, M.A.Hindistan, A.E.Tercan, G.Ertunç, M.S.Ünal, S.Y.Kıllıoğlu, F.Atalay

Soma Eynez coal seam is produced by constituting slices at different elevations. Seam inclination in upper parts was suitable for horizontally sliced production method. The hanging wall of the seam is strong marn whereas the footwall formation is clay with a very low strength and it is considerably affected by water. Therefore, the first slice (face) is operated in the roof contact and the other slices, numbers depend on the seam thickness, are operated towards the floor. To minimize the effects of clay formation, the last production panel is formed at the bottom on a coal slice left above the clay contact.

Different production methods must be studied for especially to increase the production rate. A full mechanization production in footwall panel has not been applied yet in the area therefore the difficulties in such an application have not been experienced. It is thought that it might be possible to produce the coal more efficiently and safely by applying the method proposed in this paper. It is suggested that a longwall panel should be produced firstly at the floor and the gap behind is filled with concrete preventing roof collapse. This concrete filling will be used as a safe strong floor for the longwall panel located above. Detailed analysis and studies should be carried out on the proposed method. In this paper, it is basically aimed to initiate a discussion on an alternative coal production strategy for Soma Eynez coal field.

Cycle Time Segments and Cycle Time Distribution Curves of Mining Size Wheel Loaders – A Case Study ( Orjinal Araştırma )
Pages 13-21 Metin Özdoğan, Hakkı Özdoğan
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Mining wheel loaders loading haul trucks, in contrary to earthmoving equipment which have 360 degrees slewing capability of upperframe, have an entirely different cycle time phases: Travel to dig (TTDG), Dig (DG), Travel to dump (TTDMP), and Dump (DMP). Therefore, the cycle time (CT) of a mining loader is comparatively higher than that of an equivalent sized excavator with a rotating upper frame. However, whenever mobility and versatility of the loading tool is essential such as selective mining applications the wheel loaders are favoured. Investigating cycle time segments may give qualitative and quantitative hints for improving the cycle times of the loader applications upon changing the operators and the truck spotting layouts. Therefore, studying cycle time statistics and cycle time frequency distribution curves are important. In the article, two cases are explored one being from Brasil, the other one is from Turkey. Sample CT segments and CT distribution curves are investigated and discussed

Air Pollution Due to Coal Mining: Literature Review About Particulate Matter and Methane Emissions ( Derleme )
Pages 23-31 Kazım Onur Demirarslan, Ali Kaya
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In spite of development of renewable energy technologies, our dependence on fossil fuels still has
been continuing. Coal is the most suitable fuel in terms of price and efficiency in fossil fuels. With
the industrial revolution, coal using steam engines increased and as a result of this, coal demand
increased. The need for coal makes coal production increased and so, environmental problems
increase because of coal mining. One of these problems is air pollution. Especially Particulate
Matter (PM) and Methane (CH4) emissions which occurred in open and underground mining
represent major place. In this research, PM and methane emissions situation and precautions
in coal mines around the world are explained by making literature review. Also, this research is
intended to be resource to other planned studies.

New Developments in the Australian Mining Education ( Derleme )
Pages 33-40 Mehmet S. Kızıl
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The Australian mining industry is responsible for more than 50% of the export revenues and is the
largest exporter of black coal and the second largest exporter of iron ore in the world. As a major
export player on the world minerals markets, the Australian mining industry delivers significant
benefits to the Australian economy. Graduating good quality engineers for such an important
industry requires world-class education. Mining Education Australia (MEA) was developed to
deliver a common undergraduate curriculum in mining engineering across Australia. This unique
initiative was developed in response to increased demand for mining industry professionals
in an environment of limited funding within the traditional university environment and a critical
shortage of suitably qualified academic staff. MEA is an unincorporated joint venture between
The University of Queensland, The University of New South Wales and Curtin University in
Western Australia. In 2009, The University of Adelaide became a member of the MEA Program.
This paper discusses the history and governance of MEA as well as the structure of the common
curriculum and teaching innovations adopted.