Proceedings of the 8th Russian-Chinese Symposium “Coal in the 21st Century: Mining, Processing, Safety"

Session: Increasing open-pit and underground coal mining efficiency

17 articles
Proceedings Article

Evaluation Model for the Level of Development of Work Organization System in Coal Mines

Tatiana Koroleyva, Svetlana Grigashkina
This article discusses the evaluation of the level of development of the work organization system in coal mines. It assumes that the key factor in the growth of labor productivity in the coal industry is the level of development of the system of work organisation. The model is proposed for the evaluation...
Proceedings Article

The Necessity and Ways to Develop the methodology of Management Decision Making Support for Innovative Development of Mining Regions in Russia

Sergey Lazarenko, Georgiy Dubov, Andrei Zykov, Anastasia Shirokolobova
The paper describes the development of a complex method of decision making support for the objectives of the Russian Federation innovative development with regard to the specific conditions of mining regions of the country. The extremely large amount of unstructured and poorly structured information...
Proceedings Article

Methods and Schemes of Opening-up the Quarry Fields at Various Bedding Conditions of Deposits

Valery Kolesnikov
The idea of opening, expressing the creation of conditions for cargo traffic mining companies transporting cargo from the bottom to the place of its reception within the boundaries of enterprise or outside it, is the same for cutting, quarry, mine, or mine. However, in open cast mining, the term "opening"...
Proceedings Article

The Improvement of the Bunton Construction of Mine-shaft Equipment

Aleksandr Kopytov, Vladimir Pershin, Michail Voitov, Ahmed Wetti
Shaft equipment plays an important role in the process of exploitation loading. The main load is concentrated on the basic buntons, which are horizontal metal H-beams and they are fixed into the shaft support by both ends. In shafts with skip hoisting of useful minerals the destruction of upper flanges...
Proceedings Article

Adaptive Technology of Using Backhoes for Full Coal Extraction

Maxim Tyulenev, Alexey Khoreshok, Ekaterina Garina, Sergey Danilov, Sergey Zhironkin
Hydraulic backhoes are widely used in Kuzbass (Western Siberia, Russia) because the level of coal loss during their operation is much lower compared with traditional quarry excavators - shovels. However, one of the mining enterprises' designing problems is insufficient consideration of technological...
Proceedings Article

Influence of Service Conditions of Quarry Dump Trucks on the Thermal State Large-size Tires

Aleksanadr Kulpin, Dmitriy Stenin, Evgeniy Kultayev, Evdokya Kulpina, Valeriy Borovtsov
Operability of tires depends substantially on their thermal state. High operational temperature of tires worsens mechanical properties of tire materials and reduces their durability. The country average level of large-size and over large-size tires service life considerably decreases because of the tires...
Proceedings Article

The Evaluation of Production Safety of Coal-mining Region

Natalya Kudrevatykh, Oksana Sheveleva
The existing external economic situation in the country, the offer to create in Eastern Siberia "a carbon-free zone" will have a negative impact on production safety in the Kemerovo region – the largest coal-mining region of the country. The aim of the research is to assess the real situation in production...
Proceedings Article

Social Technologies for Management: Opportunities for Coal-mining Enterprises

Olga Zonova, Evgeniya Nekhoda, Ekaterina Slesarenko
The ways of improving the social management technologies, including those for the coal-mining enterprises, in particular the development of the corporate social responsibility, especially in the labor relations system, are proposed in the article. Ignoring the challenges of the contemporary reality,...
Proceedings Article

Organization and Assessment of Efficiency of Intra Corporate Control in the Large Coal Mining Company

Elena Kucherova, Tatyana Tyuleneva, Natalya Cherepanova
The paper describes the need of improvement of intra corporate control of the enterprise of the coal-mining industry. The description of the principles of creation, model of realization of intra corporate control as sets of mechanisms of its organization and an assessment, and also stages of their application...
Proceedings Article

Research on impact characteristics of inclined coal-rock composite body

Tan Yunliang, Zhang Yubao
In this paper, the coal-rock composite models with different inclined angles were established using particle flow code, and the impact instability characteristics after unloading were analyzed. In addition, the evolution process of impact energy was studied. The research results show that the strain...
Proceedings Article

Clustering and Emergent Features of the Regional Economics of the Kemerovo Region

Sergey Bereznev, Maria Kumaneeva, Maksim Makin
The subject matter of this research is the processes of clustering in the regional economics. Currently, clustering is the most efficient form of conducting the innovative activity. For industrial regions, such as the Kemerovo region, the benefits of clustering comprise the creation of an efficient production...
Proceedings Article

Justification of Efficiency of Heavy Dump Trucks Effectiveness in Open pit Mines According to Operating Life Criterion of the Back Axle

Ivan Panachev, Georgiy Shirokolobov, Ilya Kuznetsov, Anastasia Shirokolobova
Open pit mine dump trucks with different carrying capacity transport more than 80% of overburden and coal from open pit mines of Kuzbass. The universal indicators of vehicles operating conditions are: energy intensity which determines energy consumption for minerals transportation and durability which...
Proceedings Article

Using Innovative Technologies of 3D Modeling for Advanced Planning of Reclamation Results

Olesya Aksenova, Anna Pachkina
The problems of open pit mining area reclamation and computer modeling of areas under the most intensive anthropogenic impact are the topics of worldwide discussions. The solution of the problem to define reclamation area is described as the precise computer graphical design of surface landscape restoring...
Proceedings Article

Influences on Pressure Releasing by Blasting Breaking Hard Roof

Zhang Wei, Tan Yunliang, Guo Weiyao, Gu Shitan, Mu Dianrui, Hu Shanchao
In order to optimize and upgrade the pressure releasing effect of blasting breaking hard roof, influence factors of it was analyzed by theoretical analysis, numerical simulation and field practice. Firstly, the impact on charge structure (charge uncoupling coefficient K, charge axial coefficient le and...
Proceedings Article

Study on the Distribution Law of Front Abutment Pressure of Long Fully-Mechanized Working Face in Deep Mine

Ji Yuguo, Wang Xianjun, Zhou Yongpei, Zhang Xiantang
The front abutment pressure of long fully-mechanized working face has an important influence on the law of rock motion and emergence of rock burst, and it is also directly related to safety and efficiency of production. Based on a fully-mechanized working face, by using Fast Language Analysis of continua...
Proceedings Article

Simulation and Field Measurement Study on Roof Strata Behavior of Fully Mechanized Caving Face

Liu Weitao, Song Wencheng, Wang Jianning
In order to reveal the related law between strata behavior and rock burst of fully mechanized caving face, this paper discussed the relationship between the distribution of abutment pressure and energy in front of the coal wall of fully mechanized caving mining face from the point of view of energy....
Proceedings Article

Displacement Back Analysis Based on GA-BP and PSO-BP Neural Network

Gu Dongdong, Tan Yunliang
In order to study the back analysis accuracy of different algorithms of neural network for back analysis of tunnels surrounding rock. Firstly, the main parameters influencing the deformation of tunnels surrounding rock are analyzed by orthogonal test. Secondly, a FLAC3D numerical model of the tunnels...