Assessment of pillar stability and its control in a double roadway layout
Wanpeng Huang,
Tongyang Zhao,
Chengguo Zhang
et al.
Abstract:To solve the problem of controlling the stability of small coal pillars under the mining disturbance of the adjacent working face, the fourth panel 403 and 404 working faces of the Gaojiabao coal mine with two mining roadways is taken as the object of this research. The comprehensive research method of combining mechanical theory analysis, coal dynamic disturbance experiments and field engineering practice was adopted. First, the analysis determined the magnitude and frequency of fracture‐related disturbance l… Show more
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