Results 31 to 40 of about 823 (175)
Research on Soft Rock Damage Softening Model and Roadway Deformation and Failure Characteristics
Materials, 2022 To determine a reasonable control strategy for deep buried soft rock roadways, a study on deformation and failure characteristics was carried out. The Weibull distribution damage variable was introduced to construct a damage-softening model considering the lateral deformation of the rock mass, and the functional relationship between the model ...
Chunlin Zeng +5 more
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Field investigations of high stress soft surrounding rocks and deformation control
Journal of Rock Mechanics and Geotechnical Engineering, 2015 Field investigations of high stress soft rock deformations show that the high stress soft rock roadway can slide with large deformation. Severe extrusion and floor heave can also be subsequently observed.
Weijian Yu +3 more
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Shock and Vibration, 2015 This paper presented a case study of the failure mechanisms and support design for deep composite soft rock roadway in the Yangcheng Coal Mine of China. Many experiments and field tests were performed to reveal the failure mechanisms of the roadway.
Bangyou Jiang +4 more
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Applied Sciences, 2023 The focus of this paper is the thick soft rock mass roof of the track roadway in the No. 3606 panel of the Chaili Coal Mine. Due to its substantial thickness, the soft rock mass roof of the roadway is susceptible to damage and deformation during the ...
Yongjie Yang, Lingren Meng, Tianli Zhang
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Discussion on support technology of coal mine soft rock roadway [PDF]
World Construction, 2020 China is rich in coal resources. In most cases, coal resources are obtained through the way of mining. In the process of mining, it is necessary to control the application of mining technology, otherwise it will easily cause damage to the geological structure.
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Research and Application of Support Design for Soft Rock Roadway in Strongly Weathering Zone
Meikuang Anquan, 2020 To solve the problems of large deformation and supporting difficulties in soft rock roadway in strongly weathering zone, and taking the soft rock roadway along the wind oxidation zone edge of No.
ZHENG Wenxiang, DU Dengji, BAO Xiankai
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Numerical Analysis and Control Study on Surrounding Rock Deformation of Deep Soft Rock Roadway [PDF]
E3S Web of Conferences, 2021 Aiming at the problem of large-scale deformation of the track and alleys in the East Second Mining Area, the numerical analysis method is used to analyze the stress and deformation law of the roadway. The results show that the critical depth of the roadway deformation is 800m, the shear stress of the deep roadway is about 8.7MPa in the left and right ...
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Numerical Simulation Analysis of New Steel Sets Used for Roadway Support in Coal Mines
Metals, 2019 The surrounding rock control is a tough issue in the roadway with the swelling soft rock. The steel set is an important material for the control of swelling soft rock roadways.
Qinghai Li +6 more
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Deformation failure law and control countermeasures of deep buried weakly cemented soft rock roadway
Meikuang Anquan, 2022 In order to study the deformation-failure law of deep buried weakly cemented soft rock roadway and determine reasonable control countermeasures, taking the south main return laneway of Yuwu Coal Mine as an example, the strain softening model parameters ...
HUANG Yong, PAN Xiahui, LIN Zhibin
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Deep Underground Science and Engineering, EarlyView.An experimental device for physical simulation of hydraulic fracturing, comprising: a load‐bearing mechanism with multiple interconnected plates that collectively form an sample chamber; a load‐generating mechanisms, with multiple load‐generating mechanisms arranged within the experimental chamber.
Delei Shang +5 more
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