Water-preserved coal mining in water-shortage mining areas: a case study in the Yonglong mining area of China

Water-preserved coal mining (WPCM) in water-shortage mining areas is an important aspect of water resources management. This paper aimed at the protection of Cretaceous groundwater resources during the high-intensity mining in the Yonglong mining area, China, and carried out basic theory and practic...

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Main Authors: Xiuchang Shi, Guangluo Lyu
Format: Article
Language:English
Published: IWA Publishing 2023-09-01
Series:Water Practice and Technology
Subjects:
Online Access:http://wpt.iwaponline.com/content/18/9/2123
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author Xiuchang Shi
Guangluo Lyu
author_facet Xiuchang Shi
Guangluo Lyu
author_sort Xiuchang Shi
collection DOAJ
description Water-preserved coal mining (WPCM) in water-shortage mining areas is an important aspect of water resources management. This paper aimed at the protection of Cretaceous groundwater resources during the high-intensity mining in the Yonglong mining area, China, and carried out basic theory and practical application of WPCM. The hydrogeological structure and engineering geological characteristics were investigated on-site. On-site detection and numerical simulation were used to study the dynamic evolution laws of overburden failure and water-conducting fractured zone (WCFZ), and the seepage laws of mining-induced overburden were analyzed by the rock triaxial seepage test. The results showed that it was feasible to carry out WPCM in the Yonglong mining area. From the view of reducing the height of WCFZ and preventing water hazards, the technical measures for WPCM were proposed. The research results can provide a theoretical basis and technical approach for WPCM in the water-shortage mining areas. HIGHLIGHTS The feasibility of water-preserved coal mining was analyzed.; Overburden failure and seepage laws induced by coal mining were studied.; Water-preserved coal mining technologies were proposed.;
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spelling doaj.art-08799d6112194504bf8d4c97fbe96e152023-10-12T07:24:33ZengIWA PublishingWater Practice and Technology1751-231X2023-09-011892123213510.2166/wpt.2023.133133Water-preserved coal mining in water-shortage mining areas: a case study in the Yonglong mining area of ChinaXiuchang Shi0Guangluo Lyu1 School of Engineering Management and Real Estate, Henan University of Economics and Law, Zhengzhou 450046, China Key Laboratory of Coal Resources Exploration and Comprehensive Utilization, Ministry of Land and Resources, Xi'an 710021, China Water-preserved coal mining (WPCM) in water-shortage mining areas is an important aspect of water resources management. This paper aimed at the protection of Cretaceous groundwater resources during the high-intensity mining in the Yonglong mining area, China, and carried out basic theory and practical application of WPCM. The hydrogeological structure and engineering geological characteristics were investigated on-site. On-site detection and numerical simulation were used to study the dynamic evolution laws of overburden failure and water-conducting fractured zone (WCFZ), and the seepage laws of mining-induced overburden were analyzed by the rock triaxial seepage test. The results showed that it was feasible to carry out WPCM in the Yonglong mining area. From the view of reducing the height of WCFZ and preventing water hazards, the technical measures for WPCM were proposed. The research results can provide a theoretical basis and technical approach for WPCM in the water-shortage mining areas. HIGHLIGHTS The feasibility of water-preserved coal mining was analyzed.; Overburden failure and seepage laws induced by coal mining were studied.; Water-preserved coal mining technologies were proposed.;http://wpt.iwaponline.com/content/18/9/2123hydrogeological structuremining technical measuresoverburden failurewater-conducting fractured zonewater-preserved mining
spellingShingle Xiuchang Shi
Guangluo Lyu
Water-preserved coal mining in water-shortage mining areas: a case study in the Yonglong mining area of China
Water Practice and Technology
hydrogeological structure
mining technical measures
overburden failure
water-conducting fractured zone
water-preserved mining
title Water-preserved coal mining in water-shortage mining areas: a case study in the Yonglong mining area of China
title_full Water-preserved coal mining in water-shortage mining areas: a case study in the Yonglong mining area of China
title_fullStr Water-preserved coal mining in water-shortage mining areas: a case study in the Yonglong mining area of China
title_full_unstemmed Water-preserved coal mining in water-shortage mining areas: a case study in the Yonglong mining area of China
title_short Water-preserved coal mining in water-shortage mining areas: a case study in the Yonglong mining area of China
title_sort water preserved coal mining in water shortage mining areas a case study in the yonglong mining area of china
topic hydrogeological structure
mining technical measures
overburden failure
water-conducting fractured zone
water-preserved mining
url http://wpt.iwaponline.com/content/18/9/2123
work_keys_str_mv AT xiuchangshi waterpreservedcoalmininginwatershortageminingareasacasestudyintheyonglongminingareaofchina
AT guangluolyu waterpreservedcoalmininginwatershortageminingareasacasestudyintheyonglongminingareaofchina