Results 11 to 20 of about 16,297,520 (247)
Improvement of the transitional technology from open pit to underground mining of magnetite quartzite [PDF]
E3S Web of ConferencesThe paper analyzes the disadvantages of the technology of iron ore open pit mining and current environmental problems of open pit mining. The paper also addresses problems of possible displacement and strains of rocks in the classical open pit mining ...
Stupnik Mykola +4 more
doaj +4 more sources
Economic effect of modification the optimal contour of the Open Pit South Mining District Majdanpek, Republic of Serbia [PDF]
Mining and Metallurgy Engineering BorThe Open Pit South Mining District is a unique unit that operates within the company Copper Mine Majdanpek, which is a part of the company Serbia Zijin Copper doo (former Mining and Smelting Basin Bor Group).
Kržanović Daniel +4 more
doaj +3 more sources
Computer-aided optimal open pit design with variable slope angles [PDF]
, 1999 The use of open pit mining has increased to extract large and low grade deposits with the growth in demand for raw materials, with the advances in mining technology and with the depletion of high grade and readily accessible orebodies.
Khalokakaie, Reza
core +6 more sources
Features of the Excavation and Loading Equipment of Various Types in the Development of Inclined and Steep Beds [PDF]
E3S Web of Conferences, 2019 Open pit coal mining enterprises are constantly faced with the task of increasing the economic efficiency of mining, reducing coal losses and increasing profitability.
Kolesnikov Valery +3 more
doaj +1 more source
Geofluids, 2021 This study presents different land saving and loss reducing schemes. Comprehensively compare the economic benefits of the schemes. It is shown that the optimal scheme can recover tons of coal resources on the south slope, creating significant economic ...
Tongsuo Guo +9 more
doaj +1 more source
Technological schemes of coal extraction in closed mines with the use of backhoes [PDF]
E3S Web of Conferences, 2021 At the present time on the fields of operating and closed-down mines there are sections of open-pit operations. However, the adopted technology does not meet environmental requirements, there are no scientific recommendations on the technology of open ...
Makarov Vladimir +2 more
doaj +1 more source
Journal of Rock Mechanics and Geotechnical Engineering, 2023 Recently, Garai et al. (2022) published a paper on the impact of orientation of blast initiation on ground vibrations. However, some of the claims are not supported by the results of the given tests. In Fig. 1 (see Fig.
Tadeusz Chrzan
doaj +1 more source
Technical Transactions, 2021 A method for determining the value of the damage to a single-family residential building located near an open-pit mine caused by ground vibrations is presented.
Chrzan Tadeusz
doaj +1 more source
Road longitudinal slope influence on the efficiency of excavator-automobile complexes usage [PDF]
E3S Web of Conferences, 2021 At present, the country's coal industry pays special attention to the open-pit mining, because of its higher efficiency and profitability. According to various surveys, currently the share of open-pit mining is 50 - 65%, and it will increase to 80 - 85 ...
Kudrevatykh Andrey +2 more
doaj +1 more source
Calculation of Boundary Stripping Ratio Errors at the Stage of Quarries Designing [PDF]
E3S Web of Conferences, 2019 The open pit mining method of solid minerals extracting is widely used both in Russia and in the whole world, and sets a general direction of mining industry development as its main tool, at least for the next decades.
Selyukov Alexei, Rybár Radim
doaj +1 more source