Results 21 to 30 of about 5,255,039 (212)
A quantitative method for water inrush risk from fractured rocks based on nonlinear seepage theory [PDF]
Meitan xuebaoFractured rock mass is one of the main water inrush channels. Groundwater exhibits nonlinear seepage characteristics in fractured rocks when water inrush occurs. However, the research on the risk of water inrush from the fractured rocks mainly focuses on
Weitao LIU +5 more
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Application of Neural Network in Water Source Distinguishing of Mine Water Inrush
Gong-kuang zidonghua, 2011 The paper proposed a method of using improved SOM neural network to distinguish water source of mine water inrush. The method takes seven irons contents of Na+, K+, Ca2+, Mg2+, Cl-, SO2-4 and HCO-3 in water as distinguished factors and combines with improved SOM neural network model to classify 20 samples of water source.
WU Yan, YU Zhi-chao
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Feature Extraction of Mine Water Inrush Precursor [PDF]
IEEE Access, 2020 Coal water inrush acoustic emission (AE) signal is characterized by time varying, nonstationary, unpredictable and transient properties. To extract effective features representing coal water inrush information, the AE signal is analyzed by the wavelet characteristic energy spectrum coefficient based on wavelet theory.
Ye Zhang 0021 +4 more
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Gray Evaluation of Water Inrush Risk in Deep Mining Floor. [PDF]
ACS Omega, 2021 With the increase of the mining intensity of coal resources in China, the geological conditions of minefields have become more and more complex. The mining conditions of high pressure and high stress bring great challenges to the safe mining of coal resources. To accurately evaluate the risk of water inrush from the broken floor under high pressure and
Qu X, Yu X, Qu X, Qiu M, Gao W.
europepmc +5 more sources
Risk assessment of coal mine water inrush based on PCA-DBN. [PDF]
Sci Rep, 2022 AbstractTo provide an effective risk assessment of water inrush for coal mine safety production, a BP neural network prediction method for water inrush based on principal component analysis and deep confidence network optimization was proposed.
Zhang Y, Tang S, Shi K.
europepmc +6 more sources
Recognition of mine water-inrush sources using artificial neural network [PDF]
, 2023 In the process of excavating and mining, water-inrush episodes induced by a number of geological or human factors is a complex geological hazard and often lead to disastrous consequences, making an accurate prediction before an inrush accident is ...
Qinglong, Zhou +2 more
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Study on water inrush warning information of coal seam floor fault structure
Energy Exploration & Exploitation, 2023 Water inrush from coal floor is a gradual process from generation, and development to disaster. In this process, the geophysical information received by the rock mass will show measurable characteristics of the sudden, and the occurrence of water inrush ...
Siyu Li +7 more
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Study on Main Control Factors for Karst Collapse Column Water Inrush in Coal Mines
Meikuang Anquan, 2020 It is of great significance to study the main control factors of erosion and water inrush from the confined water guiding column of coal mine floor to reveal the water inrush mechanism of the Karst collapse column and to guide its water inrush ...
SHI Hongmiao, YAO Banghua, WEN Zhihui, MA Qingqing
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Study on water inrush mode and evolution mechanism of water channel in roof type goaf
Meikuang Anquan, 2023 The roof type goaf water disaster in coal mine has strong impact and destructive force. It is of great significance to study the evolution law of water inrush channel of overlying strata under goaf water for the prevention and control of goaf water ...
LIAN Ye, QI Tingye, LIU Qin
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Comprehensive Water Inrush Risk Assessment Method for Coal Seam Roof
, 2022 In order to prevent coal mine water inrush accidents, it is necessary to appropriately assess the water abundance of coal mines based on drilling and geophysical data. This paper studied a comprehensive risk assessment method of water inrush.
Zhenming Sun, Mei Li, Wenpeng Bao
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