scholarly journals Roadway Backfill Mining with Super-High-Water Material to Protect Surface Buildings: A Case Study

2019 ◽  
Vol 10 (1) ◽  
pp. 107 ◽  
Author(s):  
Erhu Bai ◽  
Wenbing Guo ◽  
Yi Tan ◽  
Guangshuai Huang ◽  
Mingjie Guo ◽  
...  
Keyword(s):  
Sustainable Development ◽  
Theoretical Calculations ◽  
Mining Industry ◽  
High Water ◽  
Coal Industry ◽  
The Sustainable Development ◽  
Coal Resources ◽  
Working Face ◽  
Backfill Mining ◽  
Roadway Design

As coal resources trapped under surface buildings in the Wangtaipu coal mine area impede the efficient mining of coal seams and constrain the sustainable development of coal mines, a super-high-water roadway backfill mining technique for preventing building damage was adopted. According to the control principle and theoretical calculations, an engineering design was established including the reasonable width of segment coal pillars in the working face and technical parameter design. The monitoring results after the implementation of the scheme showed that building deformation was controlled within grade I, protecting the surface buildings. A reasonable roadway design parameter was achieved, with a surface subsidence of 27 mm and horizontal deformation of 0.3 mm/m, indicating that it can ensure the safety of surface buildings from the State Bureau of Coal Industry. The practical trial can provide a reference for the extraction of coal resources under similar conditions and is vital for the sustainable development of the mining industry and economic growth.

scholarly journals The sustainable development of coal mines by new cutting roof technology

2020 ◽  
Vol 7 (6) ◽  
pp. 191913
Author(s):  
Bin Yu ◽  
Yang Tai ◽  
Rui Gao ◽  
QiangLing Yao ◽  
Zhao Li ◽  
...  
Keyword(s):  
Sustainable Development ◽  
New Technology ◽  
Coal Mines ◽  
Mining Industry ◽  
Surrounding Rock ◽  
Chinese Government ◽  
The Sustainable Development ◽  
Coal Resources ◽  
Temporary Support ◽  
Working Resistance

China consumes more than 3.6 billion tons of coal every year. In the meanwhile, coal accounts for over 60% of the energy consumption sector. Therefore, the sustainable development of coal mines is a problem that needed to be solved by the Chinese government. During the coal resources recovery process, the protective coal pillars between the adjacent working faces lead to a vast waste of coal resources. In order to mitigate the resource-wasting issue, a new technology of roof cutting with chain arm retaining roadway was put forward in this paper. First, the procedures of retaining roadway, roof-cutting parameters and the damage ranges of roadway surrounding rock induced by roof cutting with chain arm were analysed. Then, the working resistance of the temporary support equipment is given when using the new technology to retain the roadway. Next, the roof-cutting height, the temporary support equipment selection, working resistance of portal support and support parameters of the bolt and anchor cables were optimized based on the numerical calculation. The industrial experiment of retaining roadway by roof cutting with chain arm was carried out in a working face. The surrounding rock damage was lowered and controlled with the application of chain arm roof-cutting technology. Also, it was found that the variation range of the uniaxial compressive strength was only 5%, resulting in the roof damage range of 82 mm. The new technology has proved a potentially wide application in the coal mining industry with prosperous economic and safety improvement.

Resources Evaluation of Coal Construction Project Based on Sustainable Development

2011 ◽  
Vol 58-60 ◽  
pp. 315-318
Author(s):  
Xiao Bo Shi ◽  
Mei Lin
Keyword(s):  
Sustainable Development ◽  
Evaluation System ◽  
Construction Projects ◽  
Social Economic ◽  
Construction Project ◽  
The Sustainable Development ◽  
Coal Resources ◽  
Resources Evaluation ◽  
Development Tendency ◽  
Social Economic Development

The resources problems, caused by the coal construction projects in our country, brought about an increasing pressure to the coal production and many hidden troubles to social economic development. The article according to the development tendency of coal resources in our country, discussed coal resources as a rare and drain resources. At the same time, the paper puts forward Sustainable Development of coal resources; then builts an evaluation system of coal construction project on the basic of Sustainable Development. The purpose of the system was to direct the development of coal construction projects, finally come to the Sustainable Development of resources, economic and society.

China Coal Industry and Sustainable Development

2012 ◽  
Vol 512-515 ◽  
pp. 1568-1573
Author(s):  
Fei Zhang ◽  
Yan Bing Wang
Keyword(s):  
Sustainable Development ◽  
Circular Economy ◽  
Coal Industry ◽  
Scientific Model ◽  
The Sustainable Development ◽  
Existing Problems ◽  
Low Efficiency ◽  
Chinese Coal ◽  
Coal Enterprises ◽  
Mode Of Production

At the beginning of the new century, China’s economic growth accelerated. The demand of coal as a basic energy is keeping increase [1]. With the progress of the mining technology, changed the past low efficiency, backward mode of production, but there are still many adverse factors that restrict to the sustainable development of coal industry in China [2]. Through detailed analysis of the current situation of China coal industry, find out existing problems of Chinese coal industry sustainable development, and using the basic principle [3], to find suitable to Chinese coal industry sustainable development scientific proposition -- Circular Economy [4], using circular economy this scientific model to guide Chinese coal enterprises transformation and development, making Chinese coal enterprises realize sustainable development.

scholarly journals Mechanisms for Harmonizing the Sustainable Development of Kuzbass as a Resource Region

2019 ◽  
Vol 134 ◽  
pp. 03002
Author(s):  
Yuri Fridman ◽  
Ekaterina Loginova ◽  
Galina Rechko
Keyword(s):  
Sustainable Development ◽  
Business Models ◽  
New Economy ◽  
Coal Industry ◽  
Conceptual System ◽  
Prospective Development ◽  
The Sustainable Development ◽  
Kemerovo Oblast ◽  
Doing Business ◽  
The Common

The article views the problems related to harmonizing the development of a resource area. Kemerovo Oblast – Kuzbass is selected as the object of this study. We point out that, in the absence of consensus between authorities and business concerning the prospective development of the region, its economy may decay even despite obvious success in the fundamental industry, namely coal mining. It is strategically important for Kuzbass to create an efficient infrastructure for transforming the development of the coal industry into the economy-wide development of the region. Taking into account best international harmonization practices, we propose a conceptual system of mechanisms aimed at coordinating the interests of the commodity-driven business and the resource area built on the ‘common grounds’ shared by the coal industry and Kemerovo Oblast. The concept in question relies on the need to introduce business models to the industry management that would harmonize with the interests of the territory. At the same time, the territory should start to build a new economy by creating new standards that would establish requirements for doing business.

Study on Coal Industry Sustainable Development Based on Ecological Civilization

2013 ◽  
Vol 869-870 ◽  
pp. 522-525
Author(s):  
Wei Li ◽  
Quan Lu ◽  
Kai Li
Keyword(s):  
Sustainable Development ◽  
Present Situation ◽  
Coal Industry ◽  
Development Model ◽  
Main Line ◽  
Ecological Civilization ◽  
The Sustainable Development ◽  
New Situation

Under the background of the construction of ecological civilization, the paper expounds the present situation of coal industry, analyzed the new situation of the coal industry. On the basis of the construction of ecological civilization, paper is put forward for the sustainable development of coal industry sustainable development model and three main line. Finally it is concluded that the coal industry based on the sustainable development of ecological civilization path.

scholarly journals CYCLICAL NATURE OF THE COAL MINING INDUSTRY IN UKRAINE AND ITS SUSTAINABLE DEVELOPMENT CAPACITY

2020 ◽  
pp. 54-61
Author(s):  
L. Horoshkova ◽  
Y. Khlobystov ◽  
V. Volkov
Keyword(s):  
Sustainable Development ◽  
Coal Mining ◽  
Raw Materials ◽  
Mining Industry ◽  
Metallurgical Industry ◽  
Resource Saving ◽  
Coking Coal ◽  
Coal Resources ◽  
Rational Use ◽  
Coal Mining Industry

The mechanism for Ukrainian coal mining industry's sustainable development management has been formed as a result of the study. Significant losses in the process of coal mining are proved to be one of the coal mining industry problems. It has been specified that the reserve for the industry's efficiency upgrading in the framework of more resource-saving behaviour is funding of mines reconstruction. Slowdown in the coal mining industry development has been determined to be the result of military operation in Donets'k and Luhans'k regions. The inefficiency of transport logistics for coal resources imported by Ukraine has been proved, since the rail freight transport is favored instead of cheaper maritime transport due to the underdeveloped quality of port infrastructure. Balancing mining, production of coal raw materials and their subsequent use in the production processes have been proved to be the ways to ensure rational use of coal resources of Ukraine. The processes for coking coal is metal production, and for anthracite – thermal energy production. Relationship between growth rates of coking coal mining and production, coke mining, exports and imports of coke and ironmaking during 2008– 2017s have been studied. It has been demonstrated that imports of coking coal essentially depends on the market pricing and has little to do with the needs of the metallurgical industry of Ukraine. It has been shown that the system for rational use of coking coal's capacity in Ukraine should include balancing flows of coal mining, coke and semi-coke mining according to the needs of national metallurgical industry, taking into account cyclical nature of its development. The necessity of coordinating the volumes of anthracite extraction, production and consumption and taking into account short cycles of heat power development have been defined.

scholarly journals Study on Stress Distribution Law of High-Efficiency Paste Backfilling Working Face with Solid Waste in Thick Coal Seam

2020 ◽  
Vol 2020 ◽  
pp. 1-13
Author(s):  
Meng Zhang ◽  
Dan Fang
Keyword(s):  
Sustainable Development ◽  
Stress Distribution ◽  
Coal Seam ◽  
Solid Waste ◽  
Research Methods ◽  
High Efficiency ◽  
Distribution Law ◽  
Thick Coal Seam ◽  
The Sustainable Development ◽  
Working Face

The high-efficiency paste backfilling mining technology of solid waste in thick coal seam above 6 m is a complex system engineering, which involves mining, backfilling, supporting, subsidence, safety, and other aspects, so it is of great strategic significance to study the technology. In this paper, on the basis of comprehensive research methods such as laboratory experiments, theoretical analysis, computer programming, and other comprehensive research methods, aiming at the problems of low production capacity and high paste backfilling cost, taking the mining of No. 3 Coal Seam under buildings in Lu’an area as the research object, the stress distribution law of high-efficiency paste backfilling working face with solid waste in more than 6-meter-thick coal seam was carried out. The main achievements are as follows: On the basis of the theoretical establishment of the program method for the instability discriminant analysis of roof rock beam failure with the change of backfilling body unit strength with time, a numerical calculation model considering the change process of backfilling body strength is established. The stress distribution analysis of the E1302 working face before and during the mining process plays a guiding role in the actual production of the whole working face and roadway. The research results support the sustainable development of coal mining enterprises from technology, which has great economic, social, and environmental benefits, and can promote the industrialization of green mining high-tech in Shanxi Province and even the whole country and can promote the green mining technology progress of paste backfilling in coal mines in China, which is of great significance to the sustainable development of mining production and environmental construction.

Analysing the Sustainable Development of Coal Resources in Shanxi Province from the Perspective of Coal Reserves

2014 ◽  
Vol 962-965 ◽  
pp. 1746-1752
Author(s):  
Chun Chen Wei ◽  
Chun Xiang Hu ◽  
Zhi Wei Yu
Keyword(s):  
Sustainable Development ◽  
Production Capacity ◽  
Shanxi Province ◽  
Coal Production ◽  
The Sustainable Development ◽  
Coal Resources ◽  
Geological Conditions ◽  
Coal Reserves ◽  
Production Target ◽  
Production Conditions

The coal production capacity is determined by many factors, such as geological conditions, production conditions, transportation conditions, environmental factors, coal reserves and so on. The coal reserves play a fundamental role in these factors. Therefore, this paper analyzes whether existing reserves in Shanxi Province could support coal production target which is made by government of Shanxi Province after the integration of coal resources from the perspective of coal reserves. The purpose of this paper is to achieve better sustainable development of coal resources in Shanxi Province.

The Financial Performance Assessment on the Listed Coal Companies by Using DEA Model

2013 ◽  
Vol 869-870 ◽  
pp. 603-611
Author(s):  
Hong Min Li ◽  
Xinjiletu Yang ◽  
Zhi Zhong Yan
Keyword(s):  
Sustainable Development ◽  
Economic Development ◽  
Data Envelopment Analysis ◽  
Inner Mongolia ◽  
Decisive Role ◽  
Coal Industry ◽  
Data Envelopment ◽  
The Sustainable Development ◽  
Chinese Coal ◽  
Stable Development

The coal industry plays an important role in the economic development of China, and the performance of the listed coal companies plays a decisive role on the healthy and stable development of the coal industry. Using the method of data envelopment analysis (DEA), the paper made a detailed analysis on three coal companies which have similar size in the two coal provinces, Inner Mongolia and Shanxi. It then put forward suggestions on the sustainable development of Chinese coal industry, and showed the direction and the way for improving the operational efficiency of the industry.

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