Results 201 to 210 of about 1,938 (249)

Biotic aspects of suspended solid reduction in sedimentation ponds. [PDF]

open access: yesEnviron Sci Pollut Res Int
Skrzypczak A, Tandyrak R.
europepmc   +1 more source

Simulation of mine water inflow and gas emission during longwall mining

Rock Mechanics and Rock Engineering, 2008
Reliable prediction of rock mass deformation, mine stability, mine water inflow and mine gas emission is not only essential for improving mine safety and reduction of coal production costs, but also important for the assessment of environmental impact of mining.
H. Guo, D. P. Adhikary, M. S. Craig
openaire   +1 more source

Calculation of mine water inflow using interactively a groundwater model and an inflow model

International Journal of Mine Water, 1987
The uncertainty of the pre-evaluation of potential ground water inflow rates in underground mines results in difficulty in planning and costing the water related activities of the mines. This paper presents a procedure for making a rational assessment of the potential inflows.
P C Bouw, K L Morton
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   +3 more
openaire   +1 more source

Water inflow characteristics of coal seam mining aquifer in Yushen mining area, China

Arabian Journal of Geosciences, 2021
The Yushen mining area is located in the arid and semi-arid regions of western China. Coal mining activities in this mining area face the challenges of water resource pollution. In this study, in order to study the water inflow law of aquifer caused by coal mining activities, the overlying strata of the mining seam are divided into four aquifer groups ...
Zhao Chunhu   +7 more
openaire   +1 more source

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

Analytical techniques for the estimation of mine water inflow

International Journal of Mining Engineering, 1985
This paper outlines various analytical techniques for mine water inflow estimation incorporating several refinements such as finite boundary conditions, linear, fracture and turbulent flow conditions to pumping wells and underground excavations. These modifications enable practical mining to be simulated and therefore, permit more accurate predictions ...
R. N. Singh, A. S. Atkins
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   +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

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