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现代矿业 2019, Vol. 35 Issue (08) :55-57    DOI:
采矿工程 最新目录 | 下期目录 | 过刊浏览 | 高级检索 << Previous Articles | Next Articles >>
煤矿工作面顺槽沿空留巷技术研究
郝铭斐*
山西源通煤矿工程设计有限公司
Study on Gob-side Entry Retaining Technology along Slot in Coal Mine Face
Hao Mingfei*
Shanxi Yuantong Coal Mine Engineering Design Co.,Ltd.

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摘要 针对安全问题突出及煤炭资源回收率低等问题,以伯方煤矿为研究背景,提出了沿空留巷技术,实现无煤柱开采;根据矿井实际情况,给出了切顶卸压和巷旁支护的相关技术参数,并且对沿空留巷墙体抗滑稳定性进行了分析研究。研究表明,沿空留巷墙体的抗滑系数为5.4,大于1.6,因此墙体满足抗滑稳定性要求。采煤工作面沿空留巷后,工作面通风由U型通风改进为Y型通风,从根本上解决了回风顺槽上隅角瓦斯超限问题,改善了煤矿井下安全条件;工作面顺槽沿空留巷后,相当于回采工作面少掘1条顺槽,减少了顺槽巷道掘进过程中的安全隐患,解决了矿井生产的采掘接续问题。沿空留巷技术是解决煤炭回收利用率低下的主要举措,同时该技术也极大地提高了煤矿安全生产水平。
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郝铭斐
关键词煤矿安全   沿空留巷   回采率   墙体抗滑   稳定性     
Abstract: In view of the outstanding safety problems and the low recovery rate of coal resources,this paper takes Bofang Coal Mine as the research background,puts forward the gob-side retaining roadway technology,realizes coal pillar-free mining,according to the actual situation of the mine,gives the relevant technical parameters of roof-cutting pressure relief and roadside support,and advances the anti-sliding stability of the gob-side retaining roadway wall.The analysis shows that the anti-sliding coefficient of the wall retained along the goaf is 5.4,which is greater than 1.6.Therefore,the wall meets the requirements of anti-sliding stability. The technology of Retaining Roadway along goaf in working face realizes Y-type ventilation,eliminates gas accumulation in upper corner of return air,improves mine safety conditions,reduces roadway driving rate,reduces empty roof operation,and reduces the probability of roof falling and side slope falling. Gob-side entry retaining technology can effectively improve the recovery rate of coal resources and the level of coal mine safety production,and ensure the national energy strategic security.
KeywordsCoal mine safety   Gob-side entry retaining   Recovery rate   Wall sliding resistance   Stability     
引用本文:   
郝铭斐.煤矿工作面顺槽沿空留巷技术研究[J]  现代矿业, 2019,V35(08): 55-57
HAO Ming-Fei.Study on Gob-side Entry Retaining Technology along Slot in Coal Mine Face[J]  Modern Mining, 2019,V35(08): 55-57
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