Assessment of reserves of innovative development of a coal-mining production association and the impact of organizational and economic relations on their use

Relevance. Within a market economy, some factors are constantly changing that affect prices, demand, supply, and the competitive environment, which greatly complicates the assessment and forecasting of development opportunities. At the same time, when formulating a strategy for innovative development and implementing the goals of an enterprise, it is impossible to do without reserves determination that can become a source of resource allocation for increasing the social attractiveness and competitiveness of an enterprise. Purpose of the study: to assess the reserves of innovative development of the coal-mining production association and to identify the impact of organizational and economic relations on their use. Methods of the study. In the course of the study, systemic and process approaches were used. To assess the reserves of innovative development, methods of comparison, timing observations, benchmarking, and statistical analysis were used. The dependence of the efficiency of using the production potential of a coal-mining production association on organizational and economic relations was formed using expert estimates, mathematical modeling, and statistical analysis. Results and practical relevance of the research. A system of indicators is proposed for assessing the reserves of innovative development of a coal-mining production association, including the coefficient of adaptation reserves (reflecting the possibility of increasing the efficiency of using the production potential of the association) and the progressiveness of technical and technological support (reflecting the growth reserves due to changes in technical and technological support). The application of the proposed indicators made it possible to establish that the efficiency of using the existing potential can be increased 1.39–1.52 times for various processes at the SUEK open-pit mining enterprises. Growth reserves, due to the possibilities of new technical and technological support of transportation excavation processes, amounted to 1.85 times relative to the achieved level. Conclusions. Organizational and economic relations are a relevant factor in the efficiency of using the production potential of a coal-mining production association, and their influence is described by a power-law increasing function. The revealed dependence makes it possible to increase the validity of choosing the most beneficial strategy for innovative development of a coal-mining production association from the perspective of stakeholders for realizing significant reserves and achieving the required efficiency of using its potential.

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Numerical modeling of open pit (OP) to underground (UG) transition in coal mining

Studia Geotechnica et Mechanica ◽

10.1515/sgem-2016-0023 ◽

2016 ◽

Vol 38 (3) ◽

pp. 35-48 ◽

Cited By ~ 2

Author(s):

Phu Minh Vuong Nguyen ◽

Zbigniew Niedbalski

Keyword(s):

Numerical Modeling ◽

Coal Mining ◽

Surface Deformation ◽

Underground Mining ◽

Primary Objective ◽

Open Pit ◽

Open Pit Mining ◽

Original Experiment ◽

Surface Stability ◽

The Impact

Abstract The primary objective of the present paper is an attempt at evaluating the influence of sub-level caving operations on the slope stability of a still-functioning open pit coal mine in Vietnam. Initially, various methods of predicting the impact of underground mining on surface stability are discussed. Those theoretical considerations were later utilized in the process of constructing a Flac-2D-software-based numerical model for calculating the influence of underground operation on the deformation and possible loss of stability of an open pit slope. The numerical analysis proved that the values of open pit slope displacements were affected mainly by underground exploitation depth, direction of operation (i.e., from one slope to the other) and the distance from the slope plane. Real geomechanical strata parameters from the Vietnamese coal basin of Cam Pha were used in the modeling process. The paper is, therefore, a critical review of the hitherto proposed methods of predicting the impact of underground operation (UG) on open pit mining (OP), illustrated with selected examples of case studies on OP-UG interaction, followed by an original experiment based on numerical modeling method. This is first such study for the genuine conditions of the coal mining in Vietnam. The obtained results, however, should not be generalized due to a highly specific character of the analyzed phenomenon of mining-induced surface deformation. The practical implications of the study may occur extremely useful in the case of an UG-OP transition. Such a transition is often necessary for both technical and economical reasons, as in some coal basins open pit operations at greater depths occur unfeasible, which calls for a proper selection of parameters for a planned underground operation.

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Assessing personnel business relations in the process of innovative development at a coal mining production association

Izvestiya vysshikh uchebnykh zavedenii Gornyi zhurnal ◽

10.21440/0536-1028-2020-4-90-98 ◽

2020 ◽

pp. 90-98

Author(s):

Kostarev Andrei ◽

Keyword(s):

Functional Analysis ◽

Statistical Analysis ◽

Coal Mining ◽

Research Methodology ◽

Innovation Process ◽

Production Association ◽

Innovative Development ◽

Resources Distribution ◽

Production Resources ◽

Business Relations

Research relevance is due to bad agreement between staff’s ideas regarding the innovation process and some specific innovations need, content, and ways of implementation, which results in decreased effectiveness of innovative activity even if all necessary financial expenses have been covered. Research aim is to develop the methods of assessing staff business relations at a coal mining production association in order to determine the ways of improving innovation efficiency. Research methodology includes comparison, structural and functional analysis, questionnaires, and statistical analysis. Research results. Business relations between the actors involved in innovative development are considered as a set of connections between them when initiating, developing, mastering and implementing the innovations regarding production resources distribution and use and reserves identification and implementation. For their assessment, the following criteria have been justified: the staff’s focus on participation in innovative development and their coordination in the process of interaction. An assessment scale has been developed of employees’ focus on innovative development, and indicators have been proposed to quantify the balance of business relations. Summary. The application of the developed methodology for a retrospective analysis of business relations change at various stages of SUEK-Khakasia development made it possible to confirm its legitimacy, identify both positive and negative trends, and outline corrective measures.

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Managing and Reforesting Degraded Post-Mining Landscape in Indonesia: A Review

Land ◽

10.3390/land10060658 ◽

2021 ◽

Vol 10 (6) ◽

pp. 658

Author(s):

Pratiwi ◽

Budi H. Narendra ◽

Chairil A. Siregar ◽

Maman Turjaman ◽

Asep Hidayat ◽

...

Keyword(s):

Acid Mine Drainage ◽

Success Rate ◽

Coal Mining ◽

Best Management Practices ◽

Mine Drainage ◽

Forest Area ◽

Tree Planting ◽

Open Pit ◽

Open Pit Mining ◽

Acid Mine

Tropical forests are among the most diverse ecosystems in the world, completed by huge biodiversity. An expansion in natural resource extraction through open-pit mining activities leads to increasing land and tropical forest degradation. Proper science-based practices are needed as an effort to reclaim their function. This paper summarizes the existing practice of coal mining, covering the regulatory aspects and their reclamation obligations, the practices of coal mining from various sites with different land characteristics, and the reclamation efforts of the post-mining landscapes in Indonesia. The regulations issued accommodate the difference between mining land inside the forest area and outside the forest area, especially in the aspect of the permit authority and in evaluating the success rate of reclamation. In coal-mining practices, this paper describes starting from land clearing activities and followed by storing soil layers and overburden materials. In this step, proper handling of potentially acid-forming materials is crucial to prevent acid mine drainage. At the reclamation stage, this paper sequentially presents research results and the field applications in rearranging the overburden and soil materials, controlling acid mine drainage and erosion, and managing the drainage system, settling ponds, and pit lakes. Many efforts to reclaim post-coal-mining lands and their success rate have been reported and highlighted. Several success stories describe that post-coal-mining lands can be returned to forests that provide ecosystem services and goods. A set of science-based best management practices for post-coal-mine reforestation is needed to develop to promote the success of forest reclamation and restoration in post-coal-mining lands through the planting of high-value hardwood trees, increasing trees’ survival rates and growth, and accelerating the establishment of forest habitat through the application of proper tree planting technique. The monitoring and evaluation aspect is also crucial, as corrective action may be taken considering the different success rates for different site characteristics.

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CURRENT STA TE OF THE RESOURCE BASE OF COAL MINING INDUSTRY IN KUZBASS

News of the Tula state university. Sciences of Earth ◽

10.46689/2218-5194-2019-4-1-177-186 ◽

2019 ◽

Vol 4 (1) ◽

pp. 177-186

Author(s):

S.V. Shaklein ◽

◽

M.V. Pisarenko ◽

Keyword(s):

Coal Mining ◽

Mining Industry ◽

Coal Industry ◽

Raw Material ◽

Open Pit ◽

Open Pit Mining ◽

Material Base ◽

Resource Base ◽

Production Technologies ◽

Underground Method

Analysis of the grade composition of the mineral resource base of the distributed and undistributed subsoil Fund as of 01.01.2018 showed a decrease in reserves of coal intended for open pit mining. In the future, the production of a number of technological grades of coal (gas fat (GZh), fat (Zh), coking fat (KZh), coking (K), coking caking low-metamorphized (KCN), coking caking (KC), lean caking (OC), low caking (CC) is possible only by underground method. The expansion of the raw material base of the Kuzbass coal industry and the support of coal production volumes, primarily by the technological of grades coking fat (KZh), coking (K), coking caking (KC), lean caking (OC), low caking (CC) involves exploration, the use of unconventional production technologies and tax preferences for coal mining enterprise

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Combined Method of Coal Mining in the Opening of Shallow Layers as a Direction of Innovative Development of Geotechnology

E3S Web of Conferences ◽

10.1051/e3sconf/202131501006 ◽

2021 ◽

Vol 315 ◽

pp. 01006

Author(s):

Tatiana Tyuleneva ◽

Roman Shishkov ◽

Elena Kucherova ◽

Marat Moldazhanov

Keyword(s):

Coal Mining ◽

Underground Mining ◽

Methodological Approach ◽

Production Capacity ◽

Open Pit ◽

Open Pit Mining ◽

Mining Operations ◽

Balanced Development ◽

Coal Reserves ◽

The Cost

In recent years, there has been a decline in the efficiency of coal mining by traditional methods. On the one hand, the volume of coal outside the contour of the cut, which is economically impractical for open-pit mining, is increasing. On the other hand, when using underground geotechnology, the cost of production exceeds the cost of performing mining operations using open geotechnology, this is due to differences in the factors of operation of the open pit and the mine. This circumstance determines the use of open-underground technology for mining coal reserves outside the contour of the open pit as an actual and promising direction. This article describes a methodological approach based on the use of technological schemes for the preparation and treatment of reserves of powerful shallow coal seams, the justification of the parameters of combined geotechnology with a coordinated and balanced development of open and open-underground mining operations with the distribution of reserves for open and open-underground mining of coal reserves beyond the limit contour of the open pit, the preparation of excavation sites directly from its workings and the coordination of production capacity and the speed of their development. Its application will increase the production capacity of the coal mining complex without additional environmental burden and will provide an increased return on investment.

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Determining the level of structural survivability to control the reliability of innovative economic systems

MATEC Web of Conferences ◽

10.1051/matecconf/201929800104 ◽

2019 ◽

Vol 298 ◽

pp. 00104 ◽

Cited By ~ 4

Author(s):

Anna Ponikarova ◽

Maksim Zotov ◽

Irina Ponikarova

Keyword(s):

Environmental Factors ◽

Economic Systems ◽

Innovative Development ◽

Production Potential ◽

Continuous Increase ◽

Internal Capabilities ◽

Modern Economic ◽

Quality And Reliability ◽

The Impact

Currently, the development of modern economic systems takes place in a continuous increase in the requirements for the quality and reliability of their innovative functions. This creates the need to search for new sources of their increase in the course of innovative development of companies. In this paper, the study of existing approaches to assessing the reliability of the development of innovative economic systems based on determining the level of their structural survivability. It is noted that the achievement of reliability of innovative development of the organization is provided by choosing the most effective project, taking into account the internal capabilities of the company and the degree of influence of environmental factors on it. The choice is based on the mechanism of determining the impact of the level of structural survivability on the effectiveness of projects with different innovation orientation. The results of the study on the example of petrochemical enterprises showed that in the current conditions of development, the impact on the personnel component of the production potential of the company will give the greatest effect to achieve the reliability of the development of innovative economic systems.

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Environmental Impact Assessment Related by Energy Sector in Rovinari Mining Area

Mining Revue ◽

10.2478/minrv-2021-0017 ◽

2021 ◽

Vol 27 (2) ◽

pp. 59-75

Author(s):

Crina-Adriana Gurică ◽

Mircea Georgescu

Keyword(s):

Environmental Impact ◽

Impact Assessment ◽

Environmental Impact Assessment ◽

Thermal Power ◽

Mining Area ◽

Energy Sector ◽

Open Pit ◽

Open Pit Mining ◽

Negative Effects ◽

The Impact

Abstract In this article an impact assessment is carried out, generated by activities in the energy sector related to Rovinari mining area. Energy-related activities in this area are carried out by open pit mining activities in the context of Tismana, Roșia, Pinoasa, Peşteana and Rovinari locations and Rovinari thermal power plant. Some information that has formed the input for the author’s approach has been provided by SC. Complexul Energetic Oltenia SA (CEO) and S.C. Institute of Scientific Research, Technological Engineering and Mine Designs on Lignite S.A. Craiova (ICSITPML) which has been processed, analysed and used for the presented environmental impact assessment. Two methods from specialized studies have been used for the impact assessment, namely: the Matrix Method for Rapid Impact Assessment (MERI) and the Method for Integrated Quantitative Impact and Risk Assessment of Environmental Pollution (EIRM). Based on the analysis carried out, it can be concluded that the activity in this sector does not lead to significant negative effects strictly associated with it.

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PURCHASING STRATEGIES IN THE KRALJIC PORTFOLIO MATRIX – A CASE STUDY IN OPEN PIT COAL MINING

Indonesian Mining Professionals Journal ◽

10.36986/impj.v3i1.41 ◽

2021 ◽

Vol 3 (1) ◽

pp. 45-58

Author(s):

Alim Perdana ◽

Nur Budi Mulyono

Keyword(s):

Coal Mining ◽

Mining Industry ◽

Open Pit ◽

Barriers To Entry ◽

Mining Operations ◽

Mining Company ◽

The Matrix ◽

Using Data ◽

The Right ◽

The Impact

Kraljic matrix (or Kraljic model) is a method used to segment the purchases or suppliers of a company by dividing them into four quadrants, based on the complexity (or risk) of the supply market (such as monopoly situations, barriers to entry, technological innovation) and the importance of the purchases or suppliers (determined by the impact that they have on the profitability of the company). This quandrant allows the company to define the optimal purchasing strategies for each of the four types of purchases or suppliers. In coal mining company, hundred thousand goods, part number or SKUs are purchased by corporate in fulfilling its mining operations requirement. However, the commodities generally purchased by open pit coal mining company are classified into 6 (six) classes which are fuel, maintenance of mobile equipment, blasting material, tyre, lubricants, and others. With the complexity of dealing with suppliers, it is mandatory for developing purchasing strategies as part of managing of supply chain. Mining operations and profitability of coal mining company shall depend on the total cost of ownership in purchasing the abovementioned commodities. This Kraljic Portfolio Model (1983) will assist coal mining company in applying purchasing strategies based on the class or quadrant which has been developed. Objective of this research is to develop purchasing strategies by empirically quantifying using data from a comprehensive survey among purchasing professionals in coal mining industry. Kraljic Portfolio Matrix is developed with 2 (two) stages of questioner. First questioner is to assess the importance level of each attribute in the dimension of purchasing activity by using Analytical Hierarchy Process. Second questioner is to assess every commodity’s scoring against each supply attribute. Subsequently, the matrix is developed by using SPSS (Statistical Product and Service Solutions) software. This research successfully classifies purchasing commodity in the appropriate quadrant of Kraljic Portfolio Matrix. By classifying the commodities purchased by coal mining company in the right quadrant of Kraljic Portfolio Matrix, the company will be able to implement the right purchasing strategies which will be different in one quadrant and another.

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