Determination of the Height of Overburden Water-Conducting Fracture Zone in 215102 Working Face of Yue Nan Coal Mine [PDF]
, 2022 In order to extract gas accurately in Yue Nan coal mine and prevent gas over limit and gas accidents, a combination of theoretical analysis and numerical simulation was used to investigate the height of the overburden caving zone and fracture zone in the
Xiaozhen Dong +4 more
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Research on Subsidence Prediction Method of Water-Conducting Fracture Zone of Overlying Strata in Coal Mine Based on Grey Theory Model [PDF]
, 2023 The development height and settlement prediction of water-conducting fracture zones caused by coal seam mining play an important role in the stability of overburden aquifers and the safety of roadways.
Chunde Piao +4 more
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Development and Height Prediction of Fractured Water-Conducting Zone in Weakly Cemented Overburden: A Case Study of Tashidian Erjingtian Mine [PDF]
, 2023 To clarify the development and height of the fractured water-conducting zone of underground mines with weakly cemented overburden, the W8203 working face of the Tashidian Erjingtian Mine in Xinjiang, China, was selected to carry out a case study. Firstly,
Zizhao Zhang +5 more
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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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Research on the predicted height of water-conducting fracture zones based on the BO-RFR model and SHAP analysis [PDF]
Scientific ReportsQiu, Mei +3 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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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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Determination of Fractured Water-Conducting Zone Height Based on Microseismic Monitoring: A Case Study in Weiqiang Coalmine, Shaanxi, China [PDF]
, 2022 The NO. 3 coal seam of the Weiqiang coalmine is faced with a water inrush threat caused by two large reservoirs and the upper confined aquifer. However, existing empirical formulas cannot accurately predict the height of the fractured water-conducting ...
Yingchun Li, Qingyuan He, Wei Gao
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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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