文献类型：期刊文献

英文题名：Disastrous Mechanism of Water Burst by Karst Roof Channel in Rocky Desertification Mining Area in Southwest China

作者：Suo, Jie Qin, Qirong Wang, Wenqiang Li, Zhenhua Huang, Cunhan Xu, Youlin Chen, Zuguo

第一作者：Suo, Jie

通信作者：Li, ZH[1];Li, ZH[2]

机构：[1]Southwest Petr Univ, Sch Geosci & Technol, Chengdu 610500, Sichuan, Peoples R China;[2]Henan Polytech Univ, Sch Energy Sci & Engn, Jiaozuo 454000, Henan, Peoples R China;[3]Collaborat Innovat Ctr Coal Work Safety & Clean H, Jiaozuo 454000, Henan, Peoples R China;[4]Inst Min Engn, Guizhou Inst Technol, Guiyang 550003, Guizhou, Peoples R China;[5]Yonggui Energy Dev Co Ltd, Xintian Coal Mine, Qianxi 551500, Guizhou, Peoples R China

第一机构：Southwest Petr Univ, Sch Geosci & Technol, Chengdu 610500, Sichuan, Peoples R China

通信机构：corresponding author), Henan Polytech Univ, Sch Energy Sci & Engn, Jiaozuo 454000, Henan, Peoples R China;corresponding author), Collaborat Innovat Ctr Coal Work Safety & Clean H, Jiaozuo 454000, Henan, Peoples R China.

年份：2022

卷号：2022

外文期刊名：GEOFLUIDS

收录：;Scopus(收录号：2-s2.0-85127850029);WOS:【SCI-EXPANDED(收录号:WOS:000783748200003)】；

基金：This work was supported by the National Natural Science Foundation of China (52174073, 41972175, and 51774110) and the Natural Science Foundation of Henan Province (222300420007).

语种：英文

摘要：With the development of coal mining in rocky desertification mining area in Southwest China, water burst is becoming an important disaster in coal mine. In order to grasp the evolution characteristics of water gushing channels in coal mining in rocky desertification mining area, the 1402 working face in Xintian Coal Mine is taken as the research object, and the occurrence of aquifers on the roof of the working face is analyzed, and the water filling path of the aquifers is explored. Besides, the evolution characteristics of water passage in coal seam mining are comprehensively analyzed, by the methods of physical similarity simulation, numerical simulation, and microseismic monitoring. The results show that the key water resource is the atmospheric precipitation, which enters the mine through the original karst fissure and mining-induced fissure. With the continuous advance of working face, the fracture height of overburden increases gradually. Specifically, when the advancement distance of working face exceeds 135 m, the water-conducting cracks in the overlying strata develop to the bottom boundary of the Yulongshan limestone aquifer, and then, the mining-induced fracture and aquifer are conducted; when the working face advances 190 m, the overall overburden mining fissure is divided into fissure opening zone and fissure closed zone. Meanwhile, most of the microseismic events occur in the middle part of the karst roof, and the maximum height of microseismic event is 40 m away from the bottom boundary of the Yulongshan limestone, during the advancing process of the working face. When the mining fissure is connected with the original karst fissure, atmospheric precipitation enters the aquifer through the original karst fissure and enters the gob of working face through the mining fissure. The research results provide the references for prediction and prevention for the water burst disaster in rocky desertification mining area in Southwest China.