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International Journal for Numerical and Analytical Methods in Geomechanics
ABSTRACT Under complex deep mining conditions, crosscuts adjacent to goafs often face severe surrounding rock stability issues due to the hanging of hard roofs and mining disturbances. Taking the large deformation of the 261 cross‐cut at Huoshaopu Coal Mine as an example, hydraulic fracturing for roof cutting and pressure relief was ...
Wu Xuewu +5 more
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ABSTRACT Under complex deep mining conditions, crosscuts adjacent to goafs often face severe surrounding rock stability issues due to the hanging of hard roofs and mining disturbances. Taking the large deformation of the 261 cross‐cut at Huoshaopu Coal Mine as an example, hydraulic fracturing for roof cutting and pressure relief was ...
Wu Xuewu +5 more
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Geotechnical and Geological Engineering, 2020
The technology of gob-side entry retaining by roof cutting can release mining pressure and reduce the deformation of roadway surrounding rock. In order to solve the problem of the hard roof of the Baoshan Coal Mine being under intense pressure and the effect of the retaining roadway being poor, a field test of directional presplitting blasting for the ...
Xiaojie Yang +3 more
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The technology of gob-side entry retaining by roof cutting can release mining pressure and reduce the deformation of roadway surrounding rock. In order to solve the problem of the hard roof of the Baoshan Coal Mine being under intense pressure and the effect of the retaining roadway being poor, a field test of directional presplitting blasting for the ...
Xiaojie Yang +3 more
openaire +1 more source
Dust migration law in the “Y” ventilation pattern of the roof cutting and pressure relief goaf
Physics of FluidsThis study delves into the dust migration patterns under the “Y” type ventilation system in coal mine top-coal caving faces to address the increasingly severe underground dust concentration issues. By establishing a mathematical model for the motion of gas–solid two-phase flow and employing numerical simulation methods, the study reveals the uneven ...
Yibo Li +5 more
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