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.

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 An Analysis of the Sustainable Development Path of China’s New Government Affairs Media from the Perspective of Science and Technology Innovation

2021 ◽  
Vol 235 ◽  
pp. 02041
Author(s):  
Rui Wang
Keyword(s):  
Sustainable Development ◽  
New Media ◽  
Technological Innovation ◽  
Information Science ◽  
Science And Technology ◽  
Chinese Government ◽  
Government Information ◽  
The Sustainable Development ◽  
Development Path ◽  
Media Platform

The Chinese government actively uses the new media platform to disseminate government information and provide government services. Contemporary scientific and technological innovation, with computers and information science and technology as engines, has become the core driving force of “leading development”. This article puts the new media of Chinese government affairs under the perspective of technological innovation, analyzes the bottlenecks and possible solutions it faces, discusses the sustainable development path of new media for Chinese government affairs, and strive to provide some reference for the sustainable development of new media for government affairs in other countries or regions.

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.

scholarly journals Content Analysis of Family Policy Instruments to Promote the Sustainable Development of Families in China from 1989–2019

2020 ◽  
Vol 12 (2) ◽  
pp. 693
Author(s):  
Qi Yang ◽  
Jianyuan Huang
Keyword(s):  
Sustainable Development ◽  
Content Analysis ◽  
Family Policy ◽  
Policy Instruments ◽  
Chinese Government ◽  
Two Dimensional ◽  
Analysis Framework ◽  
The Sustainable Development ◽  
Safeguard Measures ◽  
General Welfare

Family policy involves a combination of policies enacted to address various family problems and improve the sustainable development of families. Evaluating family policy by considering policy instruments is conducive to optimizing policy allocation and promoting this sustainable development. This study constructs a two-dimensional analysis framework of policy instruments and policy themes and employs content analysis to conduct a quantitative analysis of 112 family policy texts issued by the Chinese government. The results show that the policy instruments used in China are not effective. The study also shows that environmental policy instruments are most frequently used, but the internal structure is unbalanced; supply-side policy instruments are moderately used; and the use of demand-side policy instruments is obviously limited. Policy themes focus excessively on “safeguard measures” and pay less attention to “parental welfare and protection”. Overall, China’s family policy is still in its infancy, as it focuses mainly on assistance and remains incomplete. Therefore, the parties responsible for the formulation of family policy should adjust and optimize the combinations of policy instruments that are employed are required to consider “general welfare”, and promote the two-dimensional integration of policy instruments and policy themes.

System of digital publishing policies and regulations in China

2014 ◽  
Vol 32 (3) ◽  
pp. 397-408
Author(s):  
XianRong Huang ◽  
Ting Hao
Keyword(s):  
Sustainable Development ◽  
Publishing Industry ◽  
Digital Publishing ◽  
Chinese Government ◽  
Content Type ◽  
The Sustainable Development ◽  
Social Community ◽  
Animated Cartoon ◽  
The Government ◽  
Technology Policies

Purpose – The purpose of this paper is to find the problems in the establishment of Chinese digital publishing policies and regulations system. Design/methodology/approach – The research is through analysis the digital publishing policies and regulations in China referring to digital publishing macro policies, e-book policies, digital music policies, network animated cartoon policies, network game policies, as well as through examining the legal system (law, administrative regulation, departmental rules, judicial interpretation) in China. Findings – The paper concludes that the framework of this system should contain three layers, and Chinese digital publishing policies and regulations system will continue to be improved and digital publishing market will be standardized operation. The digital publishing industry policies, digital publishing resource policies, digital technology policies, copyright policies and personnel training policies need for further investigation and research. Research limitations/implications – Because of the coverage of digital publishing industry is so wide, the policies and regulations which the paper analyzed were not so comprehensive. Practical implications – It can help the Chinese government make more comprehensive and rational policies and regulations for digital publishing industry and ensure the sustainable development of digital publishing industry. Social implications – The sound of digital publishing policies and regulations system could create a regular and healthful environment for social community participating spiritual creating and sharing. Originality/value – The paper proposes that the government should first make clear the basic objectives of the digital publishing policies and regulations system in China and then determine the content of the system. It has a positive significance to promote the establishment the system of policies and regulations in China and can ensure the sustainable development of digital publishing industry.

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 Coal Supply Sustainability in China: A New Comprehensive Evaluation Methodology

2021 ◽  
Vol 9 ◽  
Author(s):  
Pin Li ◽  
Hongyuan Yu ◽  
Jinsuo Zhang ◽  
Meiyang Du ◽  
Jing Xiong
Keyword(s):  
Sustainable Development ◽  
Environmental Sustainability ◽  
Carbon Capture ◽  
Comprehensive Evaluation ◽  
Evaluation Model ◽  
Reference Value ◽  
Evaluation Methodology ◽  
Chinese Government ◽  
The Sustainable Development ◽  
Coal Supply

Coal is a major source of energy in China. Quantifying China’s coal supply sustainability is essential to track China’s efforts towards sustainable development and achieve carbon neutrality goals. In this research, in addition to availability, economic sustainability, environmental sustainability and technological sustainability, we specially considered health and security, and transport sustainability of China’s coal supply. We select 19 indicators from the above six dimensions to build a coal supply sustainability index and construct a novel optimized comprehensive evaluation model with level difference maximization to evaluate China’s coal supply sustainability. The results showed that the policies issued by the Chinese government have effectively improved coal supply sustainability. China’s coal supply sustainability level has improved significantly, with the figure nearly doubling from 0.338 in 2000 to 0.7004 in 2019. To improve the sustainability of China’s coal supply further fundamentally, it is still necessary to improve energy diversification. Since phasing out China’s coal reliance requires considerable time, the Chinese government needs to introduce more positive and effective policies to such as increase the research and development support for carbon capture, utilization and storage technology, etc. to improve the sustainability of coal supply. The results of this research presented in this paper will have reference value for both promoting the sustainable development of China and other coal-consuming countries in the world.

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.

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