Results 21 to 30 of about 6,385 (284)

Defects and Improvement of Predicting Mine Water Inflow by Virtual Large Diameter Well Method

open access: yesGeofluids, 2022
In order to prevent the occurrence of water inrush accidents, it is particularly important to predict the mine water inrush, especially the accurate prediction of the mine water inflow in the coal mining process.
Zhimin Xu   +7 more
doaj   +2 more sources

Mine roof water inflow prediction model for the initial mining disturbance stage based on simulation-driven feature selection and ensemble learning

open access: yesResults in Engineering
Water inrush from the roof of coal seams beneath thick unconsolidated layers presents a significant challenge in mine water hazard prevention due to its sudden onset and complex mechanisms.
Xiaohang Tang   +2 more
doaj   +2 more sources

Prediction of water inflow after excavation of underground chamber group with long span and high buried depth [PDF]

open access: yesShuiwen dizhi gongcheng dizhi
Predict the water inflow after excavation of large underground caverns is crucial for the safe construction and operation of underground engineering. To predict the water inflow of underground caverns after excavation and provide guidance for drainage ...
Rui LI   +5 more
doaj   +2 more sources

Uncertainty Analysis Applied to Predicting Water Inflow in Confined Water

open access: yesIOP Conference Series: Earth and Environmental Science, 2021
Abstract In order to predict the amount of water inflow accurately, define the corresponding water influx response quantitatively in the parameter variation interval, this paper used the interval uncertainty analysis method, combined with the non-probability set theory and derived the predictive formula of confined water inflow under two
Chengcheng Xu, Chuiyu Lu, Jianhua Wang
openaire   +2 more sources

Chaos-generalized regression neural network prediction model of mine water inflow

open access: yesSN Applied Sciences, 2021
Artificial neural network (ANN) provides a new way for mine water inflow prediction. However, the effectiveness of prediction using ANN model would not be guaranteed if the influencing factors of water inflow are difficult to quantify or there are only a
Jianlin Li   +3 more
doaj   +1 more source

Application of different time series models to the prediction for mine water inflow in karst mountainous areas

open access: yesCarsologica Sinica, 2023
Coal resources are one of the important mineral resources in China. In the process of coal mining, due to the complex hydrogeological conditions in the mining area, and ineffective water exploration and discharge, accidents of mine water inrush ...
Yinxian ZOU   +5 more
doaj   +1 more source

ON-LINE DESIGN OF WATER RESERVOIR POLICIES BASED ON INFLOW PREDICTION [PDF]

open access: yesIFAC Proceedings Volumes, 2008
Abstract Stochastic Dynamic Programming (SDP) is the method most extensively adopted to design release policies for water reservoir networks. However, it suffers of the well known “curse of dimensionality”, which actually limits its applicability to small reservoir networks.
CASTELLETTI, ANDREA FRANCESCO   +4 more
openaire   +2 more sources

Key issues in water sealing performance of underground oil storage caverns: Advances and perspectives

open access: yesJournal of Rock Mechanics and Geotechnical Engineering, 2023
Water sealing performance is important for underground water-sealed oil storage (UWSOS). The key issues concerning water sealing performance mainly include the permeability of fractured rock mass (FRM), water-sealed safety (WSS), water curtain ...
Yutao Li   +7 more
doaj   +1 more source

Analysis of Tunnel Water Inrush Considering the Influence of Surrounding Rock Permeability Coefficient by Excavation Disturbance and Ground Stress

open access: yesApplied Sciences, 2021
Affected by the coupling of excavation disturbance and ground stress, the heterogeneity of surrounding rock is very common. Presently, treating the permeability coefficient as a fixed value will reduce the prediction accuracy of the water inflow and the ...
Helin Fu   +5 more
doaj   +1 more source

Analysis of water inflow conditions and prediction for water inflow of deep-buried tunnels in the karst area of Southwest China: Taking Dapozi tunnel of central Yunnan Water Diversion Project as an example

open access: yesCarsologica Sinica, 2023
The karst area in Southwest China is characterized by complex terrain and karst development, with a large area of exposed carbonate rocks and a wide distribution of karst depressions and valleys on the surface.
Yiming LUO   +5 more
doaj   +1 more source

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