Mechanism of the water invasion of Gaoyang Iron Mine, China and its impacts on the mine groundwater environment
Tóm tắt
With the development of mining of iron deposits in China, groundwater invasion and the impacts of groundwater drainage, such as regional groundwater table lowering, overlapping cones of depression, subsidence, and water quality deterioration are environmental problems which endanger mining production and human life. Effective prevention of water invasion or timely determination of the mechanism of water bursting and rational design of drainage plans are the most urgent mining challenges. The mechanism of water invasion and the environment impacts on the groundwater system of the Gaoyang Iron Mine, China were dealt with in this paper. A systematical investigation of the hydrogeological conditions and monitoring of groundwater dynamics of the mine were completed. Results show that the limestone of the middle Ordovician System constitutes the under floor of the iron deposit. This limestone is the main source of water invasion into the mine. Groundwater dynamic equilibrium conditions are broken due to mine drainage. Water invasion and drainage have caused a serious impact on the groundwater environment of the area.
Tài liệu tham khảo
Bear J (1979) Hydraulics of groundwater. Jerusalem Press, Jerusalem, 567 p
Bekesi G, McConchie JA (2002) The use of aquifer media characteristics to model vulnerability to contamination, Manawatu region, New Zealand. Hydrogeol J 10:322–331
Chen CX (1983) Calculation method of groundwater flow in unsteady state. Science Press, Beijing, 318 p
Chen CX, Tang ZH (1990a) Numerical simulation methods of groundwater flow in unsteady state. Science Press, Beijing, 318 p
Choubey VD, Rawat RK (1991) Hydrogeologic and environmental impact of Amjhore pyrite mines, India. Environ Geol Water Sci 17(1):51–60
Lin N, Li C (1990) Environmental hydrogeology. Geological Press, Beijing, pp 23–29
Willis R, Yeh WW-G (1987) Groundwater systems planning and management. Prentice-Hall Inc., Englewood Cliffs, pp 195–252
Zhu X (1990) Model of karst-fracture groundwater resource in Xindian area, China water resources in mountainous regions, Ausanne-Switzerland. Geological Press, Beijing, pp 56–65
Zhu X, Zhu R (1991) A numerical model combined with optimization model for the groundwater management in Datong City, modeling in groundwater resources. Nanjing University Press, Nanjing, pp 359–364