Evolvement rules of the roof control and crack field in working face;
顶板防治与回采工作面裂隙场演化规律
Stability Analysis on the Roofs of Mined-out Area with Different Spans in Jiagou Mine;
夹沟矿不同跨度采空区顶板的稳定性分析研究
Analysis on Critical Roof Thickness of Mined-out Area in Jiaguo Mine;
夹沟矿采空区顶板的临界安全厚度分析
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