通过对顺槽煤柱破坏失稳机理及煤柱上覆岩体的结构特征、垮落失稳机理的分析，提出了合理煤柱宽度的计算公式。
Through analyze the failure mechanism and structural feature of mine pillar and upside rock, the reasonable virgin coal width formula has been obtained.
通过对顺槽煤柱破坏失稳机理及煤柱上覆岩体的结构特征、垮落失稳机理的分析，提出了合理煤柱宽度的计算公式。
Through analyze the failure mechanism and structural feature of mine pillar and upside rock, the reasonable virgin coal width formula has been obtained.
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