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对七五煤矿10多年来沿空掘巷技术应用情况进行了总结,提出最佳小煤柱宽度为2m以下,并介绍了沿空掘巷支护和技术保障措施。
The application of gob-side entry driving technology in 75 coal mines for 75 years was summarized. The optimal width of pillars was below 2m, and the supporting measures for gob-side entry driving and technical support measures were introduced.