An overview of integrated surface subsidence-reducing technology in mining areas of China

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• 作者：Shaojie Chen ; Dawei Yin ; Fengwei Cao ; Yong Liu ; Kaiqiang Ren
• 关键词：Mine subsidence ; Integrated surface subsidence ; reducing technology ; Application principles ; Engineering application ; Development prospect ; Shortcomings
• 刊名：Natural Hazards
• 出版年：2016
• 出版时间：March 2016
• 年：2016
• 卷：81
• 期：2
• 页码：1129-1145
• 全文大小：2,686 KB
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• 作者单位：Shaojie Chen (1) (2)
  Dawei Yin (1)
  Fengwei Cao (1)
  Yong Liu (1)
  Kaiqiang Ren (1)
  
  1. State Key Laboratory of Mining Disaster Prevention and Control, Shandong University of Science and Technology, Qingdao, China
  2. Key Laboratory of Safety and High-efficiency Coal Mining, Ministry of Education, Anhui University of Science and Technology, Huainan, China
  
• 刊物类别：Earth and Environmental Science
• 刊物主题：Earth sciences
  Hydrogeology
  Geophysics and Geodesy
  Geotechnical Engineering
  Civil Engineering
  Environmental Management
  
• 出版者：Springer Netherlands
• ISSN：1573-0840

文摘

Surface subsidence-reducing technologies are currently being used within coal mining areas in China according to the requirements of harmonious development of coal mining and environment protection. Here, these technologies were overviewed, including the strip mining, backfill mining, overburden-separation grouting and vacant space grouting of caving rocks, and the problems in their applications were analyzed. It is proposed that integrated surface subsidence-reducing technology can rapidly develop in China, while aiding the safe development of coal mining areas. The theories and application principles of five types of integrated surface subsidence-reducing technologies were introduced, including strip mining combined with overburden-separation grouting, strip mining combined with vacant space grouting of caving rocks, strip mining combined with overburden-separation grouting and vacant space grouting of caving rocks, overburden-separation grouting combined with vacant space grouting of caving rocks, and strip mining combined with backfill mining. Also an engineering application of strip mining combined with backfill mining in Daizhuang coal mine was introduced, and the application results show that the surface subsidence coefficient was 0.08 and more than 48.8 Mt of coal were recovered, which confirmed that integrated technologies could effectively reduce surface subsidence and waste of coal resources. Finally, the prospects for the development of integrated technologies were discussed, and the shortcomings of theory, effective evaluations and practical applications of these integrated technologies were examined. Keywords Mine subsidence Integrated surface subsidence-reducing technology Application principles Engineering application Development prospect Shortcomings