In future under roof falling using bolt support provides referential experiences.

对今后顶板破碎条件下采用锚杆支护提供了可借鉴的经验.

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Anchor drilling machine also effects rapidity of anchor bolt support.

锚杆钻机又直接影响到锚杆支护的速度.

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Finally technological Methods : Were brought out to prevent roof falling on bolt support mining roadway.

最后提出了防治描杆支护煤巷冒顶的技术途径.

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In roadway support, bolt support saves cost of support over steel, economic performance is distinctly improved.

锚杆支护在煤巷支护方面, 较型钢支护程度不同地节约了支护费用, 经济效益明显提高.

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