According to the hard roof of No. 15 coal seam in Fenghuangshan Mine, the test results of hydraulic fracturing and deep hole blasting for the first time were compared and analyzed. The results showed that the first step pressure distance of the basic roof after hydraulic fracturing was 28 m, and the strength was low, and the caving effect was better than the deep hole blasting. Moreover, the technology was beneficial to mine safety production and provided new technical means for the hard roof treatment in China.
司浩浩. 坚硬顶板水力压裂与深孔爆破初次放顶技术试验对比分析[J]. 煤炭与化工, 2018, 41(6): 8-10.
Si Haohao. Comparative analysis of hard roof hydraulic fracturing and deep hole blasting for first caving test. CCI, 2018, 41(6): 8-10.
