Mining influence on underground water resources in arid and semiarid regions

3rd International Conference on Advances in Energy Resources and Environment Engineering

能源学;生态环境科学

Luo, A.K.^1 ; Hou, Y.^2 ; Hu, X.Y.^3

Hydrogeology Institute, Xi'An Branch, China Coal Research Institute, No.52, Yantabei Road, Xi'an, Shaanxi Province, China^1

Science and Information Centre, Xi'An Branch, China Coal Research Institute, No.82, Jinye 1st Road, Xi'an Shaanxi Province, China^2

Sino Shaanxi Nuclear Industry Group Geological Survey Co. Ltd, No.396, Hangtian Avenue, Hangtian Base, Xi'an Shaanxi Province, China^3

关键词: Arid and semi-arid regions;    Evaporation capacity;    Ground water table;    Northern shaanxi;    Observation data;    Observation wells;    Water volumes;    Water-level data;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/113/1/012131/pdf
DOI  :  10.1088/1755-1315/113/1/012131

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

Coordinated mining of coal and water resources in arid and semiarid regions has traditionally become a focus issue. The research takes Energy and Chemical Base in Northern Shaanxi as an example, and conducts statistical analysis on coal yield and drainage volume from several large-scale mines in the mining area. Meanwhile, research determines average water volume per ton coal, and calculates four typical years' drainage volume in different mining intensity. Then during mining drainage, with the combination of precipitation observation data in recent two decades and water level data from observation well, the calculation of groundwater table, precipitation infiltration recharge, and evaporation capacity are performed. Moreover, the research analyzes the transforming relationship between surface water, mine water, and groundwater. The result shows that the main reason for reduction of water resources quantity and transforming relationship between surface water, groundwater, and mine water is massive mine drainage, which is caused by large-scale coal mining in the research area.