In this paper,the hydrogeological characteristics in the southern coalfields of China are first briefly out-lined.Then,taking the Meitanba mine as an example,the evolution and modeling of mine water inflow are studied.Finally,the hazard characteristics related to mine water and mud inrush are analyzed.The results show that the main mine water sources in the Meitanba mine area are groundwater,surface water and precipitation.The evolution of mine water inflow with time indicates that the water inflow is closely related to the development of karst structures,the amount of water from rainfall infiltration,and the scope of groundwater depression cone.The mine water inflow increases with time due to the increase in mining depth and the expansion of groundwater depression cone.Using the big well method and fol-lowing the potential superposition principle,a hydrogeological model considering multi-well interac-tions has been developed to predict the mine water inflow.Based on the monitored data in the Meitanba mine area over a period of nearly 60 years,it is found that with increasing mining depth,the number of water and mud inrush points tended to decrease.However,the average water and mud flow rate per point tended to increase.

Jinhai Liu;Yanlin Zhao;Tao Tan;Lianyang Zhang;Sitao Zhu;Fangyan Xu

School of Emergency Technology and Management,North China Institute of Science and Technology,Beijing 101601,China;Hunan Provincial Key Laboratory of Safe Mining Techniques of Coal Mines,Work Safety Key Lab on Prevention and Control of Gas and Roof Disasters for Southern Coal Mines,Hunan University of Science and Technology,Xiangtan 411201,China;Department of Civil and Architectural Engineering and Mechanics,University of Arizona,Tucson,AZ 85721,USA;School of Civil and Resource Engineering,University of Science and Technology Beijing,Beijing 100083,China;Shandong Succeed Mining Safety Engineering CO.,LTD,Tai'an 271000,China

矿业科学技术学报（英文版）

[1]Jinhai Liu;Yanlin Zhao;Tao Tan;Lianyang Zhang;Sitao Zhu;Fangyan Xu-.Evolution and modeling of mine water inflow and hazard characteristics in southern coalfields of China:A case of Meitanba mine)[J].矿业科学技术学报（英文版）,2022(03):513-524

coalfields,Meitanba

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