| 切顶卸压沿空留巷施工方案优化研究 |
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| 引用本文： | 王玉新,陈慧明,杨月飞.切顶卸压沿空留巷施工方案优化研究[J].中州煤炭,2021,0(8):241-247. |
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| 作者姓名： | 王玉新 陈慧明 杨月飞 |
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| 作者单位： | （河南能源化工集团 永煤公司车集煤矿，河南 永城 476600） |
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| 摘 要： | 以2901运输巷为例，对切顶卸压沿空留巷施工方案进行优化，基于2901运输巷工程概况，优化了切顶卸压沿空留巷支护技术，主要为顶板补强及切顶卸压锚索加固技术、巷道临时支护设计及巷旁挡矸支护设计，设计了顶板预裂切缝方案，主要为预裂切缝孔深、双向聚能爆破预裂技术及爆破预裂切缝施工工艺等，并进行了现场巷道围岩监测。研究结果表明，优化后的切顶卸压沿空留巷施工方案可有效指导矿井安全生产。
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| 关 键 词： | 切顶卸压 沿空留巷 顶板补强 锚索加固 巷旁挡矸 顶板预裂切缝 |
Research on optimization of construction plan for cutting roof and pressure relief in gob-side entry retaining |
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| Wang Yuxin,Chen Huiming,Yang Yuefei. Research on optimization of construction plan for cutting roof and pressure relief in gob-side entry retaining[J].Zhongzhou Coal,2021,0(8):241-247. |
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| Authors: | Wang Yuxin Chen Huiming Yang Yuefei |
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| Affiliation: | （Juji Coal Mine，Yongcheng Coal Company，Henan Energy and Chemical Group，Yongcheng 476600，China） |
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| Abstract: | Taking 2901 transportation roadway as an example，the construction scheme of roof cutting and pressure relief gob retaining roadway is optimized.Based on the engineering overview of 2901 transportation roadway，the supporting technology of roof cutting and pressure relief gob retaining roadway is optimized，mainly including roof reinforcement and roof cutting and pressure relief anchor cable reinforcement technology，roadway temporary support design and roadway side gangue retaining support design.The scheme of roof presplitting and cutting joint is designed，mainly including presplitting and cutting joint hole depth，bidirectional concentrated energy blasting presplitting technology and blasting presplitting and cutting joint construction technology，and the on-site roadway surrounding rock monitoring is carried out.The results show that the optimized construction scheme of roof cutting and pressure relief retaining roadway along goaf can effectively guide mine safety production. |
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| Keywords: | ,roof cut and pressure relief, gob-side entry retaining, roof reinforcement, anchor cable reinforcement, roadway side gangue retaining, roof pre-cracking and slitting |
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