Results 251 to 260 of about 6,521,310 (287)

Analysis and prediction of the dynamic change of water quality in the inflow rivers

Advances in Engineering Technology Research, 2022
The Le'an River (Jiangxi Province) is polluted by multiple point sources; however, fluctuations in its water quality factors have not been analysed or predicted. This study investigated the Spatio-temporal variation of the river’s water quality.
Wen Zhu, Jingwei Chen
openaire   +2 more sources

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

Water Inflow Quantity Evaluation and Prediction for Cimushan Tunnel

Advanced Materials Research, 2012
Tunnel excavation breaks the original hydrological dynamic balance, promotes water cycle and influences the mountain groundwater system to some extent. Water inflow during construction not only threatens construction safety, but also affects surface vegetation’s growth.
Xiao Guang Jin, Yu Juan Jin, Hao Feng Tang   +2 more
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 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, Ankun Luo, Rui Chai, Qisheng Liu   +3 more
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

Multi-Factor Prediction of Water Inflow from the Working Face Based on an Improved SSA-RG-MHA Model

Water (Switzerland)
The accurate prediction of mine water inflow is very important for mine design and safe production. The existing forecasting methods based on single factors are often less accurate and stable. Multi-factor data-driven models play a key role in predicting
Shangxian Yin, Zhenxue Dai, Huiqing Lian
exaly   +2 more sources

Predicting external water pressure and cracking of a tunnel lining by measuring water inflow rate

Tunnelling and Underground Space Technology, 2018
The flow of water into a tunnel, through the surrounding rock mass and the tunnel lining, has important implications for tunnel design and tunnel condition assessment. The hydraulic conductivity of the lining is a major controlling factor on the water inflow rate.
Yuqi Tan, John V. Smith, Chun-Qing Li, Matthew Currell, Yufei Wu   +4 more
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Partitioning Prediction on the Risk of Water Inflow of the Roof in Huangling No.2 Mine

Advanced Materials Research, 2011
In the light of more and more serious water hazard problems in Huangling mining area, according to analyze the hydrogeology condition and water-filling factors of Huangling No.2 mine, this paper selected the formula in the Standard on the Exploration of Hydrogeology and Engineering-Geology in the Mining Area (GB12719-91) (Standard for short) to ...
Jie Feng, En Ke Hou, Nian Dong Deng, Gong She Ma, Xi Min Li   +4 more
openaire   +1 more source

Significance of Geological Parameters for Predicting Water Inflow in Hard Rock Tunnels

Rock Mechanics and Rock Engineering, 2013
One of the most challenging aspects of tunnelling is prognostication of water inflows. More reliable prediction of groundwater inflow may give considerable economical saving for future tunnel projects and may also prevent damage of environment and installations on the surface.
K. H. Holmøy, B. Nilsen
openaire   +1 more source