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Energies 2017, 10(6), 786; doi:10.3390/en10060786

Analysis and Prevention of Geo-Environmental Hazards with High-Intensive Coal Mining: A Case Study in China’s Western Eco-Environment Frangible Area

1
Key Laboratory of Deep Coal Resource Mining, School of Mines, Ministry of Education of China, China University of Mining and Technology, Xuzhou 221116, China
2
School of Civil, Environmental and Mining Engineering, The University of Western Australia, Perth 6009, Australia
*
Author to whom correspondence should be addressed.
Academic Editor: Marco Mussetta
Received: 13 April 2017 / Revised: 8 May 2017 / Accepted: 4 June 2017 / Published: 7 June 2017
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Abstract

This study seeks to address the problems of major geo-environmental hazards caused by high-intensive coal mining in China’s western eco-environment frangible area including strong mining pressure, surface subsidence, soil and water loss, and land desertification. Using the high-intensive mining at the Xiao-jihan Coal Mine, this paper investigates the compaction characteristics of aeolian sand-based backfilling materials, and then the evolution of water-conducting fractures and surface deformation laws with different backfill material’s compression ratios (BMCRs) by using physical simulation and numerical simulation analysis methods. This study presents the technical system of water-preserved and environmental protection with rapid-backfilling methods in China’s western eco-environment frangible area. The backfill coal mining technique and application prospects are assessed and discussed. The results will be helpful for coordinated development of coal resources exploitation and environmental protection in China’s western eco-environment frangible area. View Full-Text
Keywords: western mining area; geo-environmental hazards; water preserving; backfill coal mining western mining area; geo-environmental hazards; water preserving; backfill coal mining
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Sun, Q.; Zhang, J.; Zhang, Q.; Zhao, X. Analysis and Prevention of Geo-Environmental Hazards with High-Intensive Coal Mining: A Case Study in China’s Western Eco-Environment Frangible Area. Energies 2017, 10, 786.

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