煤炭工程 ›› 2017, Vol. 49 ›› Issue (2): 59-61.doi: 10.11799/ce201702019
• 生产技术 • 上一篇 下一篇
李亮1,黄克军1,刘文静1,张元振1,乔懿麟1,2
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摘要： 为解决长壁工作面前方煤帮遗留金属锚杆杆体带来的安全隐患，基于回采巷道帮部锚杆锚固时效性与围岩稳定性分析判据，结合FLAC3D数值计算，确定了长壁工作面前方煤壁帮锚杆合理回收范围，设计开发了以组合式中空螺旋钻为主体的锚杆杆体回收机具，建立了一套完整的长壁工作面前方锚杆杆体回收技术措施。通过现场试验，验证了回收方案的可行性和实用性。
关键词: 回采巷道, 锚杆, 锚固时效性, 锚杆杆体回收, 回收机具
Abstract: To eliminate the security risks from metal bolt-rod legacy in front of the long-wall working face.On the basis of time-dependent behavior of bolt anchoring and stability criterion of surrounding rock, the research optimized the reasonable recovery range of the bolt in front of the long-wall working face and developed an recovery equipment of bolt-rod which adopting combined hollow auger drill as main body. It is proved by test on site that the recovery schemes are feasible and practical.
中图分类号:
TD353+.6
李亮，黄克军，刘文静，等. 回采巷道帮部锚杆锚固时效性与杆体回收技术[J]. 煤炭工程, 2017, 49(2): 59-61.
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