Results 11 to 20 of about 823 (175)
Energy Science and EngineeringTo solve the problem of controlling large deformation of surrounding rock in deep soft rock roadway, the distribution characteristics and deformation mechanism of surrounding rock cracks in soft rock roadway under different lateral pressure coefficients ...
Lei Fan, Yujie Ma
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Meikuang Anquan, 2021 In order to avoid the problems of the traditional prediction methods in the prediction of the support anti-destruction ability of the high stress soft rock roadway, a prediction method of the support anti-destruction ability of the high stress soft rock
DENG Guangzhe, FU Yingkai
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Deformation Characteristics and Control Technology of Roadway in Water-Rich Soft Rock
Geofluids, 2022 Jurassic soft rocks are the main coal-bearing strata in western mining areas, which are rich in water and high in expansive minerals. The roof and floor of the coal seam are easily muddied and disintegrated when affected by water, and heave floor of ...
Weiguo Lin +3 more
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A New Theoretical Model of Rock Burst-Prone Roadway Support and Its Application
Geofluids, 2021 A rock burst usually causes a roadway collapse or even an instant blockage. When the deformation energy accumulated in the surrounding rock exceeds the minimum energy required for the dynamic destruction of the surrounding rock of a roadway, a rock burst
Mingshi Gao +3 more
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Advances in Civil Engineering, 2021 More and more attention has been paid to the supporting problem of deep soft rock roadway floor with long-term water immersion in recent years. However, the existing soft rock roadway support technology rarely takes into account the influence of the ...
Wei Jing +4 more
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Meikuang Anquan, 2022 Aiming at the support problem of large deformation of deep impact high stress soft rock roadway in 21220 working face of a mine of Yima Coal Industry Company, FLAC3D finite element method was used to simulate 21220 working face.
BI Ying, ZHAO Zhengwen
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Deformation Mechanism and Surrounding Rock Control in HighâStress 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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Numerical Simulation of Coupling Support for High-Stress Fractured Soft Rock Roadway in Deep Mine
Advances in Civil Engineering, 2022 Aiming at the difficulties during the support of high-stress fractured soft rock roadway in deep mine, a comprehensive surrounding rock management method of bolt-net-cable-grout coupling support is proposed and the mechanism of interaction between ...
Wenhua Yuan +4 more
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Deformation mechanisms in a coal mine roadway in extremely swelling soft rock [PDF]
SpringerPlus, 2016 The problem of roadway support in swelling soft rock was one of the challenging problems during mining. For most geological conditions, combinations of two or more supporting approaches could meet the requirements of most roadways; however, in extremely swelling soft rock, combined approaches even could not control large deformations.
Li, Qinghai, Shi, Weiping, Yang, Renshu
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Sustainability, 2023 We used the 11,303 return air roadway of the Hongqingliang coal mine as the engineering background for a study exploring the impact of the structural morphology of the roadway on the stress distribution characteristics and the stability of a weakly cemented soft-rock mine roadway.
Liu, Yongli +4 more
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