WORLD TRENDS IN DEVELOPMENT AND MODERNIZA TION OF THE OPEN PIT HAULAGE SYSTEM

2020 ◽  
Vol 2 (1) ◽  
pp. 141-152
Author(s):  
A.A. SOBOLEV ◽  
Keyword(s):  
Economic Performance ◽  
Open Pit ◽  
Open Pit Mining ◽  
Traffic Conditions ◽  
Mining Companies ◽  
Production Processes ◽  
Human Driver ◽  
The World ◽  
Transportation Process ◽  
Haulage System

The analysis of international experience in increase of efficiency of open pit haulage system has been done. It is revealed that a new, rapidly developing and the most perspective direction in the world is to minimize and exclude human participation in the technological processes of mining. The development of technologies and equipment, allows gradually replacing the human driver in the transportation process and stepping into fully autonomous haulage system. The combination of sensors and detectors with the artificial intelligence of computer is able to analyze, evaluate and predict the traffic conditions with the generation of an adequate intellectual decision. The introduction of autonomous haulage system in open-pit mining is improved of the technical and economic performance of the rocks transportation and safety of mining. Outlined the directions for increasing the level of robotics and automation of production processes at the Russian mining enterprises to reduce the existing gap in this field between Russian and international mining companies.

Asbestos rehabilitation project as a model of landscape sustainability

2022 ◽  
Vol 13 (1) ◽  
pp. 0-0
Keyword(s):  
Mining Area ◽  
Open Pit ◽  
Open Pit Mining ◽  
Soil Protection ◽  
Rehabilitation Management ◽  
Landscape Sustainability ◽  
National Legislation ◽  
Health Measures ◽  
Safety And Health ◽  
The World

Greece was one of the biggest producers of asbestos in the world as well as a consumer. It took advantage of the asbestos rich Zidani mine, in the region of Western Macedonia in Greece. However, due to serious health problems caused by inhaling asbestos, it was banned in 1979 and the mine closed in March 2000. Rehabilitation management of the abandoned asbestos mining area, the depositions in the open - pit mining area and the tailings remnants was necessary in order to avoid health and environmental problems in the wider area The detailed soil protection and rehabilitation project of the degraded mining area was implemented taking all necessary and appropriate safety and health measures according to the requirements of the relevant E.U and National legislation, so that accidents would be prevented. Results show that the rehabilitation, soil protection and enhancement of the area help the ecosystems to be sustainable, ecologically and socially acceptable

scholarly journals Modelling for degreasing the mining equipment downtime by optimizing blasting period at Erdenet surface mine

2021 ◽  
Vol 280 ◽  
pp. 08001
Author(s):  
Khavalbolot Kyelgyenbai ◽  
Serhii Pysmennyi ◽  
Serhii Chukharev ◽  
Batbolor Purev ◽  
Ijilmaa Jambaa
Keyword(s):  
Open Pit ◽  
Open Pit Mining ◽  
Dump Truck ◽  
Mining Equipment ◽  
Weekly Basis ◽  
Surface Mine ◽  
Molybdenum Deposit ◽  
The World ◽  
Dump Trucks ◽  
Mining Works

Erdenet copper-molybdenum deposit is the biggest one in the world and has a significant impact on Mongolian society and economy. Today LIEBHERR-994B hydraulic shovels from Germany, electric shovels including EKG-10 and EKG-15 from Russia operate for the mining works, and dump truck BelAZ - 75130 used for transportation. The causes of shovel downtime are classified as technical, technological, and organizational. During the study period, 41% of the total downtime of the excavator’s park was technical, 45% was technological, and 11% was organizational downtime. For shovels, 7% of technological downtime is due to blasting, and for dump trucks 8.7%. In open-pit mining, blasting is performed on a weekly basis, so the duration of this technological downtime can be considered almost constant. If the time between blasts or period of blasting can be arranged optimally, it will be possible to reduce mining equipment’s downtime due to blasting.

On determining the parameters of face blocks during mining operations with backhoes

2022 ◽  
pp. 76-81
Author(s):  
O.I. Litvin ◽  
Ya.O. Litvin ◽  
M.A. Tyulenev ◽  
S.O. Markov
Keyword(s):  
Open Pit ◽  
Open Pit Mining ◽  
Kuznetsk Coal ◽  
Coal Basin ◽  
Mining Operations ◽  
Kuznetsk Coal Basin ◽  
Equipment Operation ◽  
Mining Companies ◽  
The Face ◽  
The Given

The backhoe hydraulic shovels (backhoes) have been widely used in open-pit mining operations in the Kuznetsk coal basin since the early 2000s. Now their number is growing every year, both because new operations begin on new sites, and because of the backhoe advantages. However, up to now parameters of their operation, more particularly the parameters of the face blocks, are often taken according to the actual data, i.e. based on the accumulated experience of the mining companies, and are not calculated using the approved scientifically validated methods. In the given article the authors give some preconditions for creation of a uniform methodology to calculate parameters of the face blocks depending on mining-geological and miningtechnical conditions. It is noted that the manufacturers of excavation equipment quote the data corresponding to the maximum possible parameters of the equipment operation, in particular the height of the excavated layer, as a result of which it is rather difficult to apply this in practice. Preliminary conclusions about the need to take into account the diversity of the above conditions and their interrelation with the parameters of a particular model of the excavation and loading equipment have been made.

scholarly journals A probabilistic approach to the dynamic cut-off grade assessment

2021 ◽  
Vol 251 ◽  
pp. 617-625
Author(s):  
Victor Bragin ◽  
Margarita Kharitonova ◽  
NATALYA Matsko
Keyword(s):  
Rational Solution ◽  
Probabilistic Approach ◽  
The State ◽  
Open Pit ◽  
Open Pit Mining ◽  
Resource Base ◽  
Quality Requirements ◽  
Mining Companies ◽  
The Government

Cut-off grade is an important conditioning parameter that determines the quantity and quality of recoverable reserves and development efficiency.  Today, Russian mining companies operate with certified quality requirements. By setting permanent quality requirements, the government seeks to prevent depletion of reserves, reduced production during periods of falling prices, and decreased budget revenues, expressing the interests of all members of society. But to what extent do the permanent quality requirements protect the interests of the state? The answer to this question is ambiguous and does not lie on the surface. The State Commission for Reserves and domestic researchers are working to find a rational solution to the problem of quality requirements. One solution is dynamic quality requirements. The effectiveness of their application has been proven for individual mining companies, but it is incorrect to transfer these conclusions to the entire mineral resource base of the country. This article presents a new approach to determining the dynamic cut-off grade, which varies depending on the price of minerals. The dynamic cut-off grade is proposed to be determined based on the indicators of constant requirements to the quality of exploration work, using the maximum allowable costs in the region. The approach allows to calculate the effect of the introduction of dynamic cut-off grade in the practice of subsurface use for the state (in the form of the amount of taxes received) and for subsoil users (in the form of the amount of income). For a group of gold-bearing deposits with open-pit mining method, it was established that the development of reserves using dynamic values of the cut-off grade in periods of price changes ensures compliance with the interests of the state and subsoil users.

scholarly journals Evaluation Principles of the Dust Influence of Mining Enterprises on the Environment

2019 ◽  
Vol 56 (3) ◽  
pp. 62-69 ◽  
Author(s):  
Semen G. Gendler ◽  
Marat L. Rudakov ◽  
Vladimir S. Kuznetsov
Keyword(s):  
Mineral Resources ◽  
Negative Influence ◽  
Open Pit ◽  
Open Pit Mining ◽  
Digital Map ◽  
Protection Measures ◽  
Production Processes ◽  
Maximum Value ◽  
Refuse Dumps ◽  
Probabilistic Nature

Abstract It has been noted that the areas disturbed by open-pit mining together with the production processes in the extraction of mineral resources (drilling, blasting, transportation, etc.) have a negative influence on the environment in general and the atmosphere in particular. It has been indicated that, in percentage terms, dusting of refuse dumps and tailing dumps plays a prevailing role in the total amount of dust generated. It has been stated that the processes of formation and subsequent transfer of dust in the atmosphere depend on the combination of meteorological and mining factors that have a probabilistic nature in time and space. It has been shown that the maximum value of environmental risk characterises the level of dust influence, at which reduction environmental protection measures should be directed. The present paper proposes a procedure for evaluation of the dusty influence of mining enterprises on the environment. Under the conditions of Olenegorsk GOK, a GIS has been compiled – a project of the study area and, based on geo-information modelling, the results of calculating dust concentrations in the air have been imposed on a digital map of the area.

scholarly journals Digitalization in the Mining Industry

2021 ◽  
pp. 184-192
Author(s):  
O. E. Kalenov
Keyword(s):  
Mining Industry ◽  
Digital Technologies ◽  
Digital Transformation ◽  
Decisive Factor ◽  
Ecological Efficiency ◽  
Mining Companies ◽  
Production Processes ◽  
Advanced Technologies ◽  
Labour Costs ◽  
The World

Competitiveness of mining enterprises is determined, mainly by their productivity and operation superiority. Digitalization becomes a decisive factor, which can provide an opportunity to companies of this sphere to remain competitive in the future. In mining industry passing-over to new, advanced methods of work usually happens more slowly due to the scale and complexity of production processes and considerable costs necessary for re-equipment. That is why certain enterprises of this field use digital technologies without enthusiasm. However, the leading mining companies in the world invest vast funds in development of advanced technologies in power engineering and automation in order to increase mining and ecological efficiency, to cut the volume of hand labour, costs and power expenses. It is obvious that digital technologies can give new opportunities for serious rise in productivity and profit. The article studies key lines in digital transformation at mining enterprises, demonstrates basic advantages and potential threats. The authors analyze both foreign and Russian examples of effective digitalization at enterprises of this sphere.

scholarly journals Risk-Based Thinking as a Basis for Efficient Occupational Safety Management in the Mining Industry

2021 ◽  
Vol 13 (2) ◽  
pp. 470
Author(s):  
Marat Rudakov ◽  
Elena Gridina ◽  
Jürgen Kretschmann
Keyword(s):  
Occupational Safety ◽  
Swot Analysis ◽  
Safety Management ◽  
Occupational Injuries ◽  
Mining Industry ◽  
Open Pit ◽  
Management Systems ◽  
Open Pit Mining ◽  
Mining Operations ◽  
Mining Companies

This article deals with the role and the place of risk-based thinking in today’s occupational safety and health (OSH) systems used by mining companies. A brief survey on modern challenges and pressures affecting companies, as well as on the structure of supply chains, is given. It is demonstrated that, despite all measures and actions that are being taken, occupational injuries in the mining sector: (a) remain a matter of serious concern and (b) should be examined and investigated through the lens of the company’s complexity. The objective of the article is two-fold: to trace the evolution of risk-based thinking from quality management systems towards OSH management systems and to demonstrate how this approach can be implemented by a company performing open-pit mining operations. The matrix method along with the Fine and Kinney’s method was used in assessing OSH risks, and the checklist method along with a Strengths-Weaknesses-Opportunities-Threats (SWOT)analysis was used while assessing OSH opportunities. The results of the study make it possible to conclude that risk-based thinking incorporated into an OSH management system can be a robust and efficient instrument for OSH planning and implementation. This article contains an example of assessing OSH risks and opportunities for a dragline operator and also discusses the possible ways of using the data on the OSH risks and opportunities that were identified in OSH activities. The final part also contains comments and reflections on various risks mining companies are facing nowadays.

scholarly journals Optimising Productivity and Safety of the Open Pit Loading and Haulage System with a Surge Loader

Mining ◽  
2021 ◽  
Vol 1 (2) ◽  
pp. 167-179
Author(s):  
Ignacio Andrés Osses Aguayo ◽  
Micah Nehring ◽  
G. M. Wali Ullah
Keyword(s):  
Mining Industry ◽  
Mine Planning ◽  
Open Pit ◽  
Open Pit Mining ◽  
Potential Productivity ◽  
Mine Worker ◽  
Important Development ◽  
Actual Load ◽  
Haulage System

The open pit mining load and haul system has been a mainstay of the mining industry for many years. While machines have increased in size and scale and automation has become an important development, there have been few innovations to the actual load and haul process itself in recent times. This research highlights some of the potential productivity and safety benefits that the incorporation of a surge loader may bring to the load and haul system through an analysis of the system, discussion of component characteristics, and mine planning aspects. The incorporation of the surge loader into open pit loading and haulage operations also enables improved safety. This is a result of a reduction in shovel–truck interactions and the reduced likelihood of truck overfilling and uneven loading. This paper details the number of mine worker deaths that a surge loader may have prevented within the Peruvian and Chilean mining industries.

scholarly journals Impact of branding and product augmentation on decision making in the B2B market

2009 ◽  
Vol 40 (1) ◽  
pp. 1-20 ◽  
Author(s):  
N. S. Alexander ◽  
G. Bick ◽  
R. Abratt ◽  
M. Bendixen
Keyword(s):  
Decision Making ◽  
Research Method ◽  
Open Pit ◽  
Open Pit Mining ◽  
Mining Operations ◽  
Mining Companies ◽  
Decision Making Unit ◽  
Analysis Experiment ◽  
Price Differences ◽  
The Impact

The aim of this study was to investigate the impact of the brand and product augmentation on the buyers of industrial tyres. While much has been studied about branding issues in B2C markets, very little research has been conducted in B2B markets. The research method used was a conjoint analysis experiment. The subjects were decision-making unit (DMU) members of open-pit mining companies in South Africa who purchased industrial tyres for mining operations. The results suggest that the brand is very important, followed by durability, and price. Differences of magnitude amongst the members of the DMU occurred. The impact of these findings as well as the implications for buyers and suppliers are discussed.

Between Modernization and Stagnation: Economic Policy in 2012

2013 ◽  
pp. 4-23 ◽  
Author(s):  
V. Mau
Keyword(s):  
Economic Policy ◽  
Economic Development ◽  
Russian Economic Development ◽  
Structural Transformation ◽  
Economic Performance ◽  
Historical Analysis ◽  
Oil Boom ◽  
The World

The paper deals with the trends in the world and Russian economies towards development of a new post-crisis system, including technological and structural transformation. Three main scenarios of Russian economic development (conservative, innovation and acceleration) are discussed basing on historical analysis of Russian economic performance since 1970-s when oil boom started. On this basis key challenges of economic policy in 2013 are discussed.

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