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Multi-Level Support Technology and Application of Deep Roadway Surrounding Rock in the Suncun Coal Mine, China. [PDF]
Materials (Basel), 2022 To solve these problems of poor supporting effect and serious deformation and failure of surrounding rock of mining roadway under deep mining stress, a FLAC-3D numerical calculation model is established with −800 m level no.
Chu H, Li G, Liu Z, Liu X, Wu Y, Yang S.
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Research on Surrounding Rock Control Technology of Dongbaowei Deep Mining Roadway [PDF]
Advances in Civil Engineering, 2021 In order to explore the stability control of surrounding rock in the process of deep mining, comparative analysis of stress, deformation, and fracture characteristics of surrounding rock of deep and shallow mining roadway in dongbaotou coal mine ...
Chengjia Wu, Tao Qin, Lei Wang, Zhi Liu
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Geoelectric field response characteristics analysis of floor roadway surrounding rock fracture caused due to coal seam mining. [PDF]
Sci Rep, 2021 The fracture of rocks surrounding the floor roadway during the mining of the working face of a coal mine is a complicated spatiotemporal process due to the superimposed action of multiple stress fields on the surrounding rock mass.
Ou Y +9 more
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Inverse analysis of dynamic failure characteristics of roadway surrounding rock under rock burst [PDF]
Energy Science & Engineering, 2021 AbstractRock burst is one of the most serious dynamic disasters in the process of coal resources mining, in order to study its occurrence mechanism and the characteristics of its impact on roadways. Based on the No. 25110 working face of Yuejin Mine in Yi Coal Mine and No.
Yushun Yang, Sijiang Wei, Kui Li
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Energy Evolution Law during Failure Process of Coal–Rock Combination and Roadway Surrounding Rock
Minerals, 2022 The deformation and failure of a coal–rock system in a deep environment is affected by its own mechanical properties, natural endowments, and geological structures; it is very important to study the energy evolution law of coal–rock systems. For this purpose, a Particle Flow Code in 2 Dimensions (PFC2D) simulation was conducted to assess the coal–rock ...
Dongxiao Zhang +5 more
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Study on the pressure relief energy dissipation law of variable-diameter boreholes in roadway surrounding rock under dynamic and static loads. [PDF]
PLoS OneTo address the conflict between pressure relief and support effectiveness caused by large-diameter boreholes in roadway surrounding rock, this paper proposes a method involving variable-diameter boreholes for pressure relief and energy dissipation.
Lyu J +5 more
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Study on the pressure relief energy dissipation law of variable-diameter boreholes in roadway surrounding rock. [PDF]
Sci RepLarge-diameter pressure relief boreholes are one of the primary measures for preventing coal mine rockburst. However, the implementation of these boreholes disrupts the original support structure of the roadway surrounding rock, leading to conflicts with
Lyu J +5 more
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Energies, 2022 Anchor cables (bolts) act as the main support system and play an important role in improving the rock burst resistance and stability of the roadway surrounding the rock.
Dong Xu, Mingshi Gao, Xin Yu
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Geofluids, 2022 Aiming at the characteristics of large deformation and long deformation time under the mining influence of the 2254 east floor roadway surrounding rock, which under the condition of complex coal occurrence in Jiahe Mine.
Hai Wu +5 more
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Sustainability, 2022 In order to determine the rational width of coal pillars and study the surrounding rock control technology of gob side entry driving with a narrow coal pillar, this paper first calculates the width of narrow coal pillar according to limit equilibrium theory; after that, the lateral support pressure and plastic zone development of the goaf is analyzed ...
Qingliang Chang +7 more
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