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

Session: Advanced technologies in construction and upgrading of coal mining enterprises

17 articles
Proceedings Article

Resource Approach to the Estimation of International Cooperation in Integrated Development of Calciphyre Deposits

Olga Kamkicheva, Anna Voznaya, Tatyana Mikhailova, Galya Gribanova
Deposits of precious corundum are very rare, since the transparent crystals can be formed only under favorable growth conditions. The most important core sources of precious corundum are marble with ruby mineralization and sapphire-containing basalts. The scholars of T.F. Gorbachev Kuzbass State Technical...
Proceedings Article

Research on Secondary Support Time of Soft Rock Roadway

Wu Duohua, Qiao Weiguo, Song Weijie, Vladimir Pershin
In order to determine accurately secondary support time, the adjustment process of surrounding rock stress and strength in the course of supporting is analyzed based on the support principle of soft rock roadway. Based on the rheological model of soft rock roadway and the corresponding relationship between...
Proceedings Article

Roadway Support Optimization by Improved BP Neural Network and Numerical Simulation

Wang Jun, Tan Yunliang
Based on the analysis of the influence factors of the stability of roadway, we firstly collected the roadway support parameters of some roadways with good supporting effect and used them as the training samples of BP neural network. Then, we simulated the deformations of the forecasting samples and compared...
Proceedings Article

The Prediction of Distribution Characteristics of the In-situ Stress for Liuhuanggou Mine Field

Yongkui Shi, Yonglu Ding, Xiaomeng Wang, Mingwei Xu
he distribution characteristics of the in-situ stress for the mining area of Liuhuanggou mine field was tested by using the stress relief method.The value of the in-situ stress of the non-exploited region was predicted by using the theoretic analysis method and the advice of roadway layout was put forward.
Proceedings Article

Research on Development Law of Overburden Rock Fracture in Steeply Inclined and Very Thick Coal Seam Mining

Cheng Weimin, Sun Lulu
Compared with mining the horizontal coal seam and gently inclined coal seam, steeply inclined and very thick coal seam mining has many differences. Since the fracture development law is not clear, resulting in the application effect limitation of gas extraction, prevention and control of air leakage...
Proceedings Article

The Improved Construction of Reinforced-concrete Support of Slope Mouth

Vladimir Pershin, Michail Vojtov, Pavel Budnikov
During the construction of inclined shafts mouths in Kuzbass mines cast-in-situ concrete or reinforced concrete support is applied. Due to coal production increase, there is a necessity to build new coal enterprises, and as a consequence, the necessity to construct inclined shafts and mouths of the inclined...
Proceedings Article

"Lean production" in the coal mining industry

Vadim Mikhalchenko, Yuri Rubanik, Natalia Osokina, Anna Mikhalchenko
The issue under consideration is an increase in the efficiency of the coal mining industry due to implementation of "lean production" principles. The proposed solutions will reduce the level of consumption of resources, increase productivity, ensure competitive advantage and, consequently, the viability...
Proceedings Article

Lean Governance as a Condition for the Creation of Intellectual Coal Industry

Natalyi Zaruba, Natalyi Egorova
The article suggests the use of the concept of lean governance for formation of lean coal industry in the Kemerovo region, which may be relevant to a large coal region at the present stage of its socio-economic development. The Kuzbass coal basin is experiencing, like the entire coal industry in the...
Proceedings Article

A New Method for Studying the Roadway Stability

Qin Zhongcheng, Wang Shengchao, Yu Xin, Cao Bin
The effect of 5 factors, including roadway width, height, depth, lateral pressure coefficient and comprehensive stress of surrounding rock on the roadway stability by using the method of orthogonal numerical simulation experiment. The experiment results show that all these factors have an effect on the...
Proceedings Article

Application of SCADA Systems in the Coal Mining Industry

Lyudmila Samorodova, Oleg Lyubimov, Yulia Yakunina
The possibility of using the Russian complex SCADA-systems in the coal industry due to the urgency of imports substitution in Russian economy has been studied. The structure, properties and advantages of domestic SCADA-systems, which are more competitive in the market of information technologies compared...
Proceedings Article

Justification of Requirements for Crushed Rock for Open-pit Automobile Road Topping

Sergey Shabaev, Dmitriy Boyko
The rational size distribution of the granular materials is proved in this paper on the basis of the theoretical studies of their optimal structure based on the particle-particle packing probability theory, the laboratory studies in the dependencies of bulk density and static modulus of elasticity of...
Proceedings Article

The Research in the Use of Monolithic Concrete for the Mine Construction

Natalia Gilyazidinova, Nadezhda Rudkovskaya, Tatiana Santalova
The aim of the work is to study the use of slag aggregate concrete for the construction of monolithic concrete lining of mine workings. In the coal industry the average of 10-15 m of development workings are constructed to extract 1,000 tons of coal. The monolithic concrete is 97-98% of the total material...
Proceedings Article

Filling of the Vertical Mine Workings with the Autoclave Slag-concrete

Andrey Uglyanitca, Kirill Solonin
The results of laboratory experimental research in the produc-tion of the filling autoclaved slag-concrete made of slag wastes and lime are considered in the article, the methods of filling of abandoned vertical mine workings with the slag-concrete blocks, which are made either directly in the mine working...
Proceedings Article

Prestressing Method of Rigid Joints in Milti-storey Steel Frame Mining

Dmitry Vershinin, Valery Dobrachev
The paper presents a brief overview of the existing solutions for connecting the rigid joints with the steel frame columns in multi-storied buildings, the advantages, and disadvantages of the existing designs of rigid connection are analyzed; on the basis of the analysis performed a new structural design...
Proceedings Article

Dynamic models of deformation of crustal blocks in the area of development of coal deposits - the basis of the information security of their development

Aleksandr Solovitskiy
It is found that transition to new, safe and environmentally harmless technologies of the development of coal deposits in Kuzbass is not possible without the development of new models of dynamic deformation of crustal blocks. For their implementation the registration kinematics theory of crustal blocks...
Proceedings Article

Rock Destruction with Volumetric Compression

Vyacheslav Gogolin
The complete diagrams of rocks compression with deformation above compressive strength are considered. Strength properties of rocks at the volume compression are defined: compressive strength, residual strength, modulus of deformation above com-pressive strength. Physical relationships are used: failure...
Proceedings Article

Considering Behind Limit Deformation for Calculation of Coal Pillars Parameters by Finite Element Method

Inna Ermakova, Natalya Pirieva
The paper presents the steps of calculating the stress-strain state of coal pillars by finite element method. The estimated area included the following blocks: the rock of roof and soil, coal pillar, broken-down rock, and the area of complete roof displacement. All the blocks were taken linearly deformable...