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“三小”(小钻头、小锚杆、小药卷)光爆锚喷岩巷掘进作业线由煤科总院建井所,兖州、鹤壁、淮南矿务局和煤科总院爆破所、上海分院、南京所共同完成,并于1992年元月通过中国统配煤矿总公司技术发展局组织的技术鉴定.该作业线配套合理、实用、人员少、见效快。三个作业线试验点试验情况如下:兴隆庄矿平均(最高)月进尺76.27m(101m),折算成标准断面为142.58m(188.2m),李明孜矿两个月分别为
“Three small” (small bit, small anchor, small coil) light burst anchor rock excavation tunneling operation line by the Coal Mining Institute Jian wells, Yanzhou, Hebi, Huainan Coal Bureau and Coal Mining Institute blasting, Shanghai Branch and Nanjing jointly completed the technical appraisal organized by the Technical Development Bureau of China General Coal Mine Corporation in January 1992. The operation line is equipped with reasonable, practical and less staffing and quick results. The test conditions of the three operation lines are as follows: The average (maximum) monthly footage of Xinglongzhuang Mine is 76.27m (101m), which is converted into a standard section of 142.58m (188.2m). The two months of Limingzi Mine are