Results 11 to 20 of about 1,653 (136)
Study on Deformation Characteristics of Surrounding Rock of Roadway with Coal–Rock Interface
Sustainability, 2023 Surrounding rock of roadway with a coal–rock interface is a common form in coal mines. In order to determine deformation characteristics and obtain the control principle of roadways with a coal–rock interface, the interface between the roof and coal seam was added to simulate the weak cohesion between the stratum.
Tuo Wang, Jucai Chang, Yijun Guo
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Scientific Reports, 2022 AbstractThe stability of surrounding rock with bolt support depends on the stability within the reinforcement range. To understand the reinforcing mechanism of a rectangular roadway bolt fully and accurately, a quantitative method for evaluating the stability of the surrounding rock of a rectangular roadway must be developed.
Shitan Gu, Pan WANG, Chao-Fan Yang
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Study on roadway layout and surrounding rock control of isolated island panel
Scientific Reports, 2023 AbstractDuring the re-mining of historical residual coal resources, the stress environment is complex, the surrounding rock conditions are bad, the mining roadway is significantly affected by ground pressure, the layout is difficult, and the safety is poor.
Lei Shi +4 more
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Deformation Mechanism and Surrounding Rock Control in High‐Stress Soft Rock Roadway: A Case Study [PDF]
Advances in Civil Engineering, 2021 Stability control for soft and broken surrounding rock of roadways is one important segment of mining support. Taking 1412 Roadway of a mine in Guizhou province as a research background, this paper studies the large deformation of surrounding rock and the failure of bolts and cables.
Yuwen Gao +4 more
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Deformation and Failure Mechanism of Surrounding Rock in Mining‐Influenced Roadway and the Control Technology [PDF]
Shock and Vibration, 2021 Aiming at the problem of surrounding rock deformation and failure of mining roadway and its control, a mechanical model of the circular roadway under the mining environment is established, and the implicit equation of the plastic zone boundary is derived.
Jicheng Feng +6 more
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Calculation of radius of plastic zone in surrounding rock of roadway
IOP Conference Series: Earth and Environmental Science, 2021 Abstract Morh-Coulomb yield criterion and Drucker-Prager yield criterion are two commonly used strength criteria in geotechnical analysis. The former is considered to be more suitable for geotechnical media. In this paper, the plastic zone radius of roadway surrounding rock is compared with two yield criteria under different influence ...
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The application of grouting reinforcement to the broken surrounding rock of 1366 stoping roadway
矿业科学学报, 2023 This study proposes a fractional grouting reinforcement scheme of the roadway with full section to tackle surrounding rock breakage in the stoping roadway of 1366 working face and roadway deformation, floor heave and support failure.The infiltration ...
Zhang Lixin, Wei Xiujie, Liu Guangchao
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Complex function solution for deformation and failure mechanism of inclined coal seam roadway
Scientific Reports, 2022 The stressed environment of the inclined coal seam roadway is complex and changeable, and the damage degree of surrounding rock increases, threatening the safe mining of coal mines.
Xianyu Xiong +3 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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