Research on Control Mechanism of Surrounding Rock of Deep Gob-Side Entry Retaining [PDF]
Geofluids, 2021 To address the large deformation of the surrounding rock of deep gob-side entry retaining under high stress, lithological characteristics of the surrounding rock and failure model of support body and their evolutionary processes are analyzed through field investigation and theoretical analysis.
Jianxiong Liu +6 more
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Distribution Law of Mining Stress of the Gob-Side Entry Retaining in Deep Mining Thin Coal Seam
Advances in Civil Engineering, 2021 In order to explore the mining pressure development rule of gob-side entry retaining during deep thin coal seam mining, FLAC3D numerical simulation is applied to analyze the stress distribution rule of gob-side entry retaining, observing the left third ...
Tao Qin +5 more
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Asymmetric support technology for gob side entry retaining with high water material [PDF]
Acta Geodynamica et Geomaterialia, 2021 The gob side entry retaining with high water material is often used in coal mines. To study the stress evolution characteristics of surrounding rock and asymmetric support control technology of gob side entry retaining with high water material, the evolution law of stress and deformation of surrounding rock in gob side entry retaining during working ...
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Study on bearing deformation characteristics and lateral pressure distribution law of caved gangue in gob [PDF]
, 2023 Under the load of overlying strata, lateral pressure from the caved gangue in gob will be exerted on the support body of gob-side entry retaining or coal pillar.
Hailong WANG +3 more
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Shock and Vibration, 2020 To solve the control problem of the surrounding rock of gob-side entry retaining under typical roof conditions in deep mines, we conduct theoretical analysis, numerical simulation, and actual measurements.
Jingke Wu +6 more
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Discussion on stability analysis and support technology of surrounding rock of gob-side entry retaining [PDF]
, 2019 In order to further analyze the stability and control mechanism of surrounding rock in the gob-side entry retaining, the slip instability coefficient k1 and compression failure coefficient k2 are proposed by the mechanical analysis of the established ...
Huiqiang Duan, Wenxiang Zheng
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Gob-Side Entry Retaining Involving Bag Filling Material for Support Wall Construction [PDF]
Sustainability, 2020 Gob-side entry retaining, also termed as non-pillar mining, plays an important role in saving coal resources, high production and efficiency, extending the service life of mine and improving the investment benefit. Herein, a gob-side entry retaining method involving the use of bag filling material for wall construction is proposed based on the thin ...
Zhaowen Du +4 more
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Pressure Relief Mechanism of Directional Hydraulic Fracturing for Gob‐Side Entry Retaining and Its Application [PDF]
Shock and Vibration, 2021 In order to make clear the pressure relief mechanism and application effect of directional hydraulic fracturing for gob‐side entry retaining, the directional hydraulic fracturing was carried out by 400 m in haulage gateway remaining along the goaf in 50108 working face of Hejiata Coal Mine.
Zhang Xiao, Kang Hongpu
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Development of a New Gob-Side Entry-Retaining Approach and Its Application [PDF]
Sustainability, 2018 Gob-side entry retaining plays an important role in the sustainable exploitation of coal resources and has been widely used in coal mining. However; some disadvantages, such as high labour intensity and low efficiency of wall construction, have gravely restricted the application of this technique.
Hengjie Luan +3 more
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Stability Control for Gob-Side Entry Retaining with Supercritical Retained Entry Width in Thick Coal Seam Longwall Mining [PDF]
Energies, 2019 Taking gob-side entry retaining with large mining height (GER-LMH) of the 4211 panel in the Liujiazhuang coal mine as the engineering background, a numerical simulation was conducted to study the surrounding rock deformation, stress, and plastic zone distribution of GER-LMH with respect to retained entry width.
Zizheng Zhang +3 more
openaire +2 more sources