title: Implementation of paste backfill mining technology in Chinese coal mines.
abstract: Implementation of clean mining technology at coal mines is crucial to protect the environment and maintain balance among energy resources, consumption, and ecology. After reviewing present coal clean mining technology, we introduce the technology principles and technological process of paste backfill mining in coal mines and discuss the components and features of backfill materials, the constitution of the backfill system, and the backfill process. Specific implementation of this technology and its application are analyzed for paste backfill mining in Daizhuang Coal Mine; a practical implementation shows that paste backfill mining can improve the safety and excavation rate of coal mining, which can effectively resolve surface subsidence problems caused by underground mining activities, by utilizing solid waste such as coal gangues as a resource. Therefore, paste backfill mining is an effective clean coal mining technology, which has widespread application.
authors.affiliation: School of Mines, Key Laboratory of Deep Coal Resource Mining, Ministry of Education of China, China University of Mining and Technology, Xuzhou 221116, China.
authors.forename: Qingliang
authors.initials: Q
authors.lastname: Chang
authors.affiliation: School of Mines, China University of Mining and Technology, Xuzhou 221116, China.
authors.forename: Jianhang
authors.identifier: 0000-0001-6027-9080
authors.initials: J
authors.lastname: Chen
authors.affiliation: State Key Laboratory of Coal Resources and Safe Mining, China University of Mining and Technology, Xuzhou 221116, China.
authors.forename: Huaqiang
authors.initials: H
authors.lastname: Zhou
authors.affiliation: State Key Laboratory of Coal Resources and Safe Mining, China University of Mining and Technology, Xuzhou 221116, China.
authors.forename: Jianbiao
authors.initials: J
authors.lastname: Bai
mesh_terms: D002681:China; D003031:Coal / Q000032:analysis*; D003032:Coal Mining / Q000379:methods*; D004782:Environmental Health / Q000379:methods; D004787:Environmental Pollution / Q000032:analysis* / Q000517:prevention & control*; D005843:Geography; D006801:Humans; D015203:Reproducibility of Results; D017751:Safety Management / Q000379:methods
chemical_list: D003031:Coal