文献类型：期刊文献

英文题名：Mechanism of Bed Separation Water Inrush during the Mining of Extra-Thick Coal Seam under Super-Thick Sandstone Aquifer

作者：Shi, Xiuchang[1,2];Lyu, Guangluo[2,3]

第一作者：Shi, Xiuchang

通讯作者：Shi, XC[1];Shi, XC[2]

机构：[1]Henan Univ Econ & Law, Sch Engn Management & Real Estate, Zhengzhou 450046, Peoples R China;[2]Minist Land & Resources, Key Lab Coal Resources Explorat & Comprehens Utili, Xian 710021, Peoples R China;[3]Shaanxi 186 Coalfield Geol Co Ltd, Xian 710075, Peoples R China

第一机构：河南财经政法大学工程管理与房地产学院

通讯机构：[1]corresponding author), Henan Univ Econ & Law, Sch Engn Management & Real Estate, Zhengzhou 450046, Peoples R China;[2]corresponding author), Minist Land & Resources, Key Lab Coal Resources Explorat & Comprehens Utili, Xian 710021, Peoples R China.|[1048420]河南财经政法大学工程管理与房地产学院;[10484]河南财经政法大学;

年份：2023

卷号：15

期号：13

外文期刊名：SUSTAINABILITY

收录：;Scopus(收录号：2-s2.0-85165049271);WOS:【SSCI(收录号:WOS:001028290500001)，SCI-EXPANDED(收录号:WOS:001028290500001)】；

基金：This research was supported by the Henan Province Scientific and Technological Plan Project (Grant Nos. 232102320343, 202102310218) and the Shaanxi Province Industrial Science and Technology Research Project (Grant No. 2016GY-172).

语种：英文

外文关键词：bed separation water inrush; water accumulation separation layer; super-thick sandstone aquifer; water-conducting fractured zone; Huanglong Jurassic coalfield

摘要：The bed separation water inrush disasters in the Jurassic coalfield of Huanglong, China occur frequently, and they seriously threaten the safety of coal mining. This study systematically collected data from multiple instances of bed separation water inrush (BSWI) in the Cuimu coal mine and summarized the characteristics of BSWI. Through the analysis of hydrogeological conditions, hydrochemical characteristics, field detection of a water-conducting fractured zone (WCFZ), and groundwater level monitoring, the water inrush source, water-conducting channel, and the dynamic response of the aquifer water level were studied. The results showed that the water inrush source was mainly Cretaceous groundwater. The height of WCFZ in the extra-thick coal seam mining in the study area was 239.62 m, forming a water-conducting channel of water accumulation in bed separation. There was a strong correlation between water level changes in the Luohe Formation and BSWI. On this basis, we have proposed that four conditions must be met simultaneously for BSWI, and a hydrogeological-mining coupling conceptual model was established to reveal the evolution process and the mechanism of BSWI. The research results are crucial for the prevention of BSWI disasters and for ensuring the safety of coal mine production.