Results 141 to 150 of about 507,235 (176)

Estimation of groundwater inflow to an underground mining operation

International Journal of Mine Water, 1988
The methodology of investigations for the determination of the hydraulic parameters necessary for initial inflow estimations are discussed. These include the methods of testing at depth for permeability, and data interpretation. The techniques of inflow estimation are described for shafts and drifts which are based upon advanced mathematical modelling ...
J. W. Lloyd, M. G. Edwards
openaire   +1 more source

Treatment of water inflow from flooded underground mines

Mining informational and analytical bulletin, 2020
The study focuses on the adverse effect exerted on the environment by temporary shutdown and closure of underground mines by means of flooding. Closure of underground mines only terminates the structural and technological transformation of geological rock mass while detrimental effect on the natural environment of underground mines remains and even ...
A. A. Kulikova, A. A. Stelmakhov, T. A. Bacheva, M. N. Tsymbal   +3 more
openaire   +1 more source

Partitioning prediction on the risk of water inflow in the first mining area of Zhangjiamao mine

2011 International Symposium on Water Resource and Environmental Protection, 2011
In the light of the surfacing cracks and the shortage of water resources problems resulted from mining of Zhangjiamao mine. According to analyses of water-filling factors for the first mining area, this paper selects the formula in the Standard on the Exploration of Hydrogeology and Engineering-Geology in the Mining Area (GB12719-91) ( Standard for ...
null Hou Enke, null Feng Jie, null Zheng Yongfei, null Guo Zuoning, null Wang Biqing   +4 more
openaire   +1 more source

Studies in the prediction of water inflows to longwall mine workings

International Journal of Mine Water, 1986
The paper decribes results of mathematical investigations into the prediction of mine water inflows to longwall coal workings. Numerical calculations are reported on the basis of experimentally deduced hydraulic conductivities above longwall panels. The effect of longwall working on hydraulic conductivities is investigated by mathematical analyses of ...
R. N. Singh, S. Hibberd, R. J. Fawcett
openaire   +1 more source

Geochemical characteristics and source analysis of inflow of mine water in Wang’ershan Gold Mine, Shandong

Chinese Journal of Geochemistry, 2008
Through a systematic observation of water level and temperature, and a comprehensive analysis of the data on major/trace elements, nitrite, hydrogen-oxygen isotopes, the conclusion has been drawn that there are two relatively independent groundwater systems (cool water and hot water), and the geochemical indicators of hot/cool waters are described. The
Jianping Qian, Shuangli Li, Chao Cao
openaire   +1 more source

Prediction Study of Mine Water Inflow Based on Chaos Theory

Smart Innovation, Systems and Technologies
Jin Han
exaly   +2 more sources

Application of analytical solutions to simulate some mine inflow problems in underground coal mining

International Journal of Mine Water, 1984
The paper considers the interaction of ground water flow characteristics, aquifer parameters and mining geometry in order to estimate mine water inflows. The ground water flow conditions include both steady and unsteady state flow in an infinite and finite aquifers to an imaginary pumping out well.
R. N. Singh, A. S. Atkins
openaire   +1 more source

Evaluation of mine water inflow quality based on multiple methods

Journal of Environmental Engineering and Science, 2023
To reduce the negative impact of mine water gushing on the environment, it is necessary to evaluate the water quality. Taking the Pingdingshan coalfield as the research object, six components – namely, chroma, turbidity, total dissolved solids, total hardness, chloride (Cl−) and sulfate (SO4 2−) – were selected as index factors.
Bo Zhang, Fang Li, Meng Zhang, Zhenzi Yu, Xinyi Wang   +4 more
openaire   +1 more source

Mathematical modelling for estimation of minewater inflow to a surface mining operation

International Journal of Mine Water, 1988
Estimation of water i nflow to a surface mining operation is a necessary requirement for mine drainage design. The water in a shallow surface mine may originate solely from a surface source and from the atmosphere in the form of precipitation. Water in deep mining excavations below the groundwater table may originate from a surface source or as ...
R N Singh, S M Reed
openaire   +1 more source

Application of idealised analytical techniques for prediction of mine water inflow

Mining Science and Technology, 1985
Abstract The paper highlights the importance of designing a mine water control system during the feasibility study stage of a proposed large mining project. A review of the analytical techniques available for the prediction of mine water inflow quantities is given.
R.N. Singh, A.S. Atkins
openaire   +1 more source