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Research on the stability of stope roof and barrier pillars in short-wall interval filling mining. [PDF]
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Mechanism analysis and control technology of surrounding rock failure in deep soft rock roadway
Engineering Failure Analysis, 2020Abstract In order to research the surrounding rock control technology of deep soft rock roadway, the air returning cross-cut of Xinhu Coal Mine in Bozhou City was taken as an example to study the failure characteristics, roadway deformation mechanism and surrounding rock repair technology.
ChengXing Zhao +3 more
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Applying Neural Network to Predict Roadway Surrounding Rock Displacement
2020 5th International Conference on Intelligent Informatics and Biomedical Sciences (ICIIBMS), 2020Apply artificial intelligence methods to solve underground engineering problems. First, the factors affecting the displacement of the surrounding rock of the mine roadway are analyzed, and the four indexes that affect the displacement of the roadway are used as the input layer of the neural network. Then, the approach rate of the roadway is used as the
TANG Jun-Yi +4 more
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Deformation characteristics of surrounding rock of broken and soft rock roadway
Mining Science and Technology (China), 2009Abstract A similar material model and a numerical simulation were constructed and are described herein. The deformation and failure of surrounding rock of broken and soft roadway are studied by using these models. The deformation of the roof and floor, the relative deformation of the two sides and the deformation of the deep surrounding rock are ...
Jin-xi WANG +3 more
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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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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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Frontiers in Earth Science
To explore the internal bearing characteristics and fracture evolution laws of discontinuous jointed rock mass in deep roadways, the −600 m main roadway in Xin ’an Coal Mine was used as the research background.
Chengjun Hu +6 more
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To explore the internal bearing characteristics and fracture evolution laws of discontinuous jointed rock mass in deep roadways, the −600 m main roadway in Xin ’an Coal Mine was used as the research background.
Chengjun Hu +6 more
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Deformation Simulation of Surrounding Rock at Faulted Zone during Roadway Drivage
Advanced Materials Research, 2011Sometimes transportation roadways needed to go through the water-conducted normal fault with high dip and big fault throw in order to ensure the mining continuance, the two key factors were fault water and deformation of surrounding rock which influenced the digging safety and stabilization of roadways. On the base of analyzing clearly the FB11fault in
Yue Ming Qi +3 more
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