摘要
本文在矿压分析基础上,论述了高档普采不同支护形式所具有的支撑特点、护顶效果和稳定性,并对支护形式和改进问题进行了讨论。
Based on rock pressure analysis, it was expounded that the different support patternsare noticed for the bracing particularity,canopy guard effect and stability. When theimmediate roof or sub-slice roof is friable,the support pattern of individual hydraulic propcooperated with shape long beam is better thanany others. When the immediate roof and mainroof of a flat coal seam belong to 2, 3 class andⅠ, Ⅱ grade respectively, the powered supportwith sliding canopy is applicable. However,thesupport pattern of the single hydraulic prop co-operated with articulated beam is the mostadaptive one. The way of improvement of support pattern was also discussed.
出处
《矿山压力与顶板管理》
1992年第4期30-35,79-81,共6页
Ground Pressure and Strata Control
