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Research on the predicted height of water-conducting fracture zones based on the BO-RFR model and SHAP analysis. [PDF]
Sci RepQiu M, Wen Y, Teng C, Shi M.
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Applied Sciences, 2022 To study the caving of thick hard overburdens and evolution of water-conducting fracture zones in fully mechanized top-coal caving faces of gently inclined extra-thick coal seams, we comprehensively analyzed the 8103 working face of the Beixinyao Coal ...
Yang Zhou, Xueyi Yu
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Water, 2023 Predicting the height of the fractured water-conducting zone (FWCZ) can be challenging due to their significant grey characteristics and the difficulty in scientifically selecting relevant influencing factors. To address this issue, we utilized the Pearson correlation analysis method and the grey entropy correlation analysis method to identify the ...
Linjun Gu +4 more
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Formation mechanism and height calculation of the caved zone and water-conducting fracture zone in solid backfill mining [PDF]
International Journal of Coal Science & Technology, 2020 AbstractTo study the heights of the caved zone and water-conducting fracture zone in backfill mining, the failure mechanism of strata during backfill mining was analyzed, and a method for determining the heights of the two zones was proposed based on key strata theory.
Lei Li +4 more
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Meitan kexue jishu, 2023 Aiming at the problem of water and sand collapse during mining under the near loose aquifer in the exposed area of shallow coal seams, and taking the 3I126 working face of Luxi Coal Mine as the engineering background, a combination of physical simulation,
Qianwen LI +3 more
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Meikuang Anquan, 2022 In order to accurately predict the development height of water-conducting fracture zone in the roof of fully mechanized caving coal of No.3 coal seam in Tengzhou Mining Area, based on the measured data of water-conducting fracture zone height and main ...
CAO Shiyou +8 more
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Electrical Anisotropic Response of Water Conducted Fractured Zone in the Mining Goaf
IEEE Access, 2016 Based on the Maxwell equation, the occurrences of fractured zones are studied through the galvanic method. The electrical and magnetic fields are first derived in the spatial domain. To simplify the calculations, the computational formulas of the electrical fields in the spatial domain are transformed into the wavenumber domain by the Fourier transform.
Benyu Su +4 more
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Mine Water and the Environment, 2020 Accurate prediction of the height of the water-conducting fracture zone (WCFZ) is very important for safe coal mining, water resource storage, and protecting the environment. The proportion coefficient of hard rock and the actual height of the top caving coal were defined to predict the height of the WCFZ more accurately.
Xiang He +3 more
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Advances in Civil Engineering, 2021 The overburden rock mining fissures are the main cause of coal spontaneous combustion, gas pooling, and mine water inrush caused by goaf air leakage.
Xiaoqiang Zhang +4 more
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Physical simulation study on grouting water plugging of flexible isolation layer in coal seam mining
Scientific Reports, 2022 Deep coal seam mining often leads to water resource loss due to bedrock water entering the workings of the mine and is discharged adjacent to the mining area.
Ang Li +8 more
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