Results 121 to 130 of about 4,010 (144)

Investigation on the dynamic evolution and evaluation of floor microseismic responses during extra-thick coal seam mining. [PDF]

Sci Rep
Wang H, Yin S, Lian H, Cao M, Hou E, Wang X, Xing G.   +6 more
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Disaster treatment and multisource monitoring of rockbursts in isolated island coal face under hard roof conditions. [PDF]

Sci Rep
Yun M, Ren J, Zhang L, Guo F, Chen X.
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Overburden failure characteristics and fracture evolution rule under repeated mining with multiple key strata control. [PDF]

Sci Rep
Chaoshang S, Chaoyang S, Zhiming Z, Haixiao L, Zhenhua L, Feng D, Zhengzheng C, Pengtao L, Lin L.   +8 more
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Research and application of pre-excavated double withdrawal channel technology without coal pillar abandonment. [PDF]

Sci Rep
Zhang J, Shi Z, Wu C, Xiao F, Shi L.
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Evolution and stability mechanics analysis of the elliptical stress arch structure in the surrounding rocks of the underground mining area. [PDF]

Sci Rep
Li Y, Chang G.
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Study on the fracture characteristics of thick-hard limestone roof and its controlling technique

Environmental Earth Sciences, 2017
The Taiyuan group is one of the coal-bearing formations in Shanxi Province, in which coal resource is extremely abundant. No.15 coal seam is the main minable coal seam in Taiyuan group, and it develops with thick-hard limestone roof which is a threat to safe and efficient mining because of the roof failure.
Shiqi Liu, Liu Shiqi, Jinlong Jia
exaly   +2 more sources

Numerical simulation study on hard-thick roof inducing rock burst in coal mine

Journal of Central South University, 2016
In 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.
Siyuan Gong, Jiang He, Linming Dou
exaly   +2 more sources

Numerical and Field Investigations of Rockburst Mechanisms Triggered by Thick-Hard Roof Fracturing

Rock Mechanics and Rock Engineering, 2022
Caiping Lu, Zhi Long He, Xiu-Feng Zhang   +2 more
exaly   +2 more sources

Determination and Engineering Practice of Unsupported Roof Distance for Rapid Excavation of Roadway with Thick and Hard Basic Roof

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, Xinzhu Hua, Peng Yang, Xiao Liu   +3 more
openaire   +1 more source

Response and control technology for entry loaded by mining abutment stress of a thick hard roof

International Journal of Rock Mechanics and Minings Sciences, 2016
, Jian-Biao Bai
exaly   +2 more sources