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Numerical simulation study on hard-thick roof inducing rock burst in coal mine
Journal of Central South University, 2016In order to reveal the dynamic process of hard-thick roof inducing rock burst, one of the most common and strongest dynamic disasters in coal mine, the numerical simulation is conducted to study the dynamic loading effect of roof vibration on roadway surrounding rocks as well as the impact on stability.
Jiang He, Lin-Ming Dou, Zonglong Mu
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Geotechnical and Geological Engineering, 2021
In order to determine the reasonable empty roof distance during roadway excavation, a mechanical model of the direct roof rock beam was established, and the relationship between the direct roof tensile stress and the empty roof distance was obtained. According to the criterion of roof stability, that is, the tensile stress of the roof does not exceed ...
Sen Yang +3 more
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In order to determine the reasonable empty roof distance during roadway excavation, a mechanical model of the direct roof rock beam was established, and the relationship between the direct roof tensile stress and the empty roof distance was obtained. According to the criterion of roof stability, that is, the tensile stress of the roof does not exceed ...
Sen Yang +3 more
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Response and control technology for entry loaded by mining abutment stress of a thick hard roof
International Journal of Rock Mechanics and Minings Sciences, 2016Jianbiao Bai
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Experimental study on the bump-inducing mechanism of slicing in thick coal seams with hard roofs
Energy Sources, Part A: Recovery, Utilization, and Environmental Effects, 2021The bump-inducing mechanism of slicing in thick coal seams with hard roofs is still not completely understood.
Chuan Chen +5 more
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Academic Journal of Architecture and Geotechnical Engineering
: The roadway support and goaf treatment under the condition of hard and thick roof are key challenges in the coal mining process. The gob-side entry retaining technology provides a new solution.
Jianye Feng +5 more
semanticscholar +1 more source
: The roadway support and goaf treatment under the condition of hard and thick roof are key challenges in the coal mining process. The gob-side entry retaining technology provides a new solution.
Jianye Feng +5 more
semanticscholar +1 more source
Applied Sciences
To address the issue of rockburst in deep return airways caused by thick, hard sandstone roofs in the Hulusu Coal Mine, this study proposes a deep borehole pressure relief technique based on hydraulic fracturing.
Zhensuo Wang +4 more
semanticscholar +1 more source
To address the issue of rockburst in deep return airways caused by thick, hard sandstone roofs in the Hulusu Coal Mine, this study proposes a deep borehole pressure relief technique based on hydraulic fracturing.
Zhensuo Wang +4 more
semanticscholar +1 more source
Advanced Materials Research, 2012
In order to find out the cause of the mining roadway of mine test roof fall in the excavation period, to based roof stability partition method, The main research methods is using RFPA software numerical simulation, according to the specific condition roof strata of the mine test, build 6 different thickness of medium sandstone model, get the ...
Hong Tao Liu +3 more
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In order to find out the cause of the mining roadway of mine test roof fall in the excavation period, to based roof stability partition method, The main research methods is using RFPA software numerical simulation, according to the specific condition roof strata of the mine test, build 6 different thickness of medium sandstone model, get the ...
Hong Tao Liu +3 more
openaire +1 more source