Results 131 to 140 of about 507,235 (176)

Coal Mine Water Inflow Prediction Model Based on Multi-Factor Pearson Correlation Analysis

open access: yesApplied Sciences (Switzerland)
Since geological structures around coal mines are complex, sudden coal mine water inflow is seriously threatening coal mining safety. To improve the accuracy of predicting coal mine water inflow, a multi-source dataset is collected to develop a coal mine
Weiming Chen, Junjie Hu
exaly   +4 more sources

Prediction technology of mine water inflow based on entropy weight method and multiple nonlinear regression theory and its application

open access: yesGeomechanics and Geophysics for Geo-Energy and Geo-Resources
Mine water inflow is an important basis for the formulation of mining plans and the utilization of groundwater resources. The mine water inflow is the result of the combined influence of many factors.
Yifan Zeng
exaly   +3 more sources

Analytical techniques for the estimation of mine water inflow

open access: yesInternational 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   +2 more sources

Comparative Study on Prediction Methods for Water Inflow in Regional High-Intensity Water Inrush Mine Clusters: A Case Study of Xiaozhuang Coal Mine

open access: yesApplied Sciences (Switzerland)
To address the challenges of predicting high-intensity water inflow in regional mine clusters, this study evaluates the reliability of three methods—hydrogeological analogy, dynamic water inflow prediction models, and numerical simulations&mdash ...
Jia Ding   +3 more
exaly   +4 more sources
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R/S Analysis and its Application in the Forecast of Mine Inflows

Mining Science and Technology, 2006
Abstract In this paper, the status quo and modeling principles of R/S analysis of non-linear theory are introduced and reviewed. Given the hydro-geological conditions of the Wutongzhuang coal mine, Hurst exponents of mine inflow for the main shaft, ventilating shaft and auxiliary shaft were obtained using R/S analysis, which are 0.772 0, 0.824 7 and ...
Yong-guo YANG   +2 more
exaly   +2 more sources

Application of GM Model in Coal Mine Water Inflow Prediction

2015 Seventh International Conference on Measuring Technology and Mechatronics Automation, 2015
The aim of this study was to predict groundwater inflow of Bangladesh Barapukuria coal mine using grey theory. The mine water inflow is affected by geological and hydro geological conditions, precipitation, degree of exploration and mining conditions, as well as many incomplete and synthesis of uncertain or unknown factors, belonging to the grey system.
Hao Wang   +3 more
exaly   +2 more sources

Using Multiple Methods to Predict Mine Water Inflow in the Pingdingshan No. 10 Coal Mine, China

Mine Water and the Environment, 2015
To ensure safe mining of the no. 2 coal seam in the Pingdingshan No. 10 coal mine, three methods (analogue, big well, and numerical simulation) were used to forecast mine water inflow and their performance. The big well method predicted the largest water inflow: 233.8 m3/h in the −230 m level and 281.1 m3/h in the −300 m level.
Gang Lin
exaly   +2 more sources

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

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

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