断层煤柱面锚杆锚索破断原因分析及对策
Coal Science & Technology Magazine（2011）
Abstract
旗山煤矿断层煤柱面掘进期间锚杆锚索破断严重。分析了发生破断的原因,提出了"三软"煤层孤岛工作面的支护改进措施。通过增加锚杆锚索直径和长度,提高其预紧力,增加支护强度,很好地解决了锚杆锚索破断问题。
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