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Surrounding Rock Classification in Deep Roadway of Coal Mine
Advanced Materials Research, 2011With the increase of mining depth，most coals in China have been deep mining stage. Compared to the shallow roadway, the characteristics of deformation-failure of surrounding rock show significant differences in the deep roadway, and the deep rock features of the surrounding rock are not considered in the traditional classification of roadway.
Bin Liu, Quan Sheng Liu
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Risk Analysis and Extension Assessment for the Stability of Surrounding Rock in Deep Coal Roadway [PDF]
International Journal of Environmental Research and Public Health, 2019 In order to evaluate the surrounding rock stability of deep roadways, the diversity of accident hazard sources in deep coal mining is statistically analyzed. To conduct an effective evaluation, first, the risk analysis of the factors affecting the rock mass accidents is carried out, and the comprehensive safety index system of rock accidents in deep ...
Xikun Chang
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Influence of Rock Burst and Other Disasters on Stability of Surrounding Rock of Roadway
Geotechnical and Geological Engineering, 2017In this paper, selecting 3 levels and 6 factors with an orthogonal test approach to investigate the stability of roadway surrounding rock under dynamic disturbance. The intuitive analysis results show that the main factors that affect the roadway deformation is period, followed by the location, lateral pressure coefficient, amplitude and buried depth ...
Yushun Yang, Sijiang Wei, Dongming Zhang
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FAILURE CHARACTERISTICS OF SURROUNDING ROCKS IN COAL SEAM MINING ROADWAY
Bilimsel Madencilik Dergisi, 2022In order to provide technical support for grouting engineering of broken surrounding rock in roadway. Taking a certain mine in Jin coal mine area as a test mine, drilling TV and segmented water injection tests were used to detect the damage characteristics of surrounding rocks, and the numerical simulation of stress characteristics during the failure ...
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Parameter Optimization on Bolt Supporting of Deep Roadway Surrounding Rock
Advanced Materials Research, 2013Aimed at the parameter optimization problem of bolt supporting in deep high stress roadway surrounding rock, by the numerical simulation method, support schemes were evaluated and optimized on north wing blind incline shaft in Shi-shang Mine. Based on original support scheme and considering the bolt spacing, row spacing and length, twenty programs were
Yan Kai Zhang, Wei Jian Yu
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Classification of Surrounding Rock of Bolt Supported in Coal Mine Roadway
Advanced Materials Research, 2014Classification of Surrounding rock of roadway of Coal mine bolt supporting is the basis of bolting design, To scientifically design coal roadway bolting, classification of surrounding rock of coal roadway bolting must first be carry out. in this paper, the comprehensive application of knowledge engineering, rock mechanics, we developed the surrounding ...
Feng Shan Han, Li Song
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Geotechnical and Geological Engineering, 2021
In order to reveal the mechanism of surrounding rock deformation and instability of soft rock roadway in 12# working face of Puhe coal mine, and synthetical analysis of the surrounding rock, deformation and failure of the roadway shows that the original support scheme is difficult to maintain the stability of roadway.
Xiangqian Wang +4 more
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In order to reveal the mechanism of surrounding rock deformation and instability of soft rock roadway in 12# working face of Puhe coal mine, and synthetical analysis of the surrounding rock, deformation and failure of the roadway shows that the original support scheme is difficult to maintain the stability of roadway.
Xiangqian Wang +4 more
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Advanced Materials Research, 2012
To explore support technical problems in deep soft rock roadway, according to deep complicated geological conditions in 102 transport rise of Yuandian Mine, obtaining deformation characteristics of roadway in the initial support scheme under conditions, analysing the reasons of instability and failure of surrounding rock, proposing the surrounding rock
Wen Hua Zha, Xin Zhu Hua
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To explore support technical problems in deep soft rock roadway, according to deep complicated geological conditions in 102 transport rise of Yuandian Mine, obtaining deformation characteristics of roadway in the initial support scheme under conditions, analysing the reasons of instability and failure of surrounding rock, proposing the surrounding rock
Wen Hua Zha, Xin Zhu Hua
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The Mechanical Mechanism of Hulking Force Stable Principle of Surrounding Rocks in Soft Rock Roadway
Advanced Materials Research, 2014This paper aims to reveal the important role of the hulking force in stabilizing the roadway. After introducing the three ultimate strength of the foundation rock upon, starting from the perspective of stress state, the article on the deformation area surrounding rock for a more reasonable division, and thus gives the main factors roadway deformation ...
Wei Pei Xue, Lai Wang Jing
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Asymmetrical Deformation Mechanisms in Layered Inclined Surrounding Rock of Roadways
GeoStruct Innovations, 2023Lei Tan +4 more
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