回采巷道超薄复层特殊复合顶板控制技术

The Technique for Ultra-Thin Special Composite Roof Control in Extraction Roadway

本文通过对东荣二矿回采巷道煤层超薄复层特殊复合顶板的研究,得出了采用锚杆加固顶板,配合其它控制手段使这种超薄复层的特殊复合顶板在其服务期限内保持相对完整,从而实现支护与围岩的共同承载,取得了较好的经济技术效果。

The result of study indicates that by applying the bolting technique plus other control means to control the ultra—thin composite roof, a favorable techno—economic result can be obtained. The roof can be maintained in this case in a relatively integral state within the mine's service period because of the ability of the anchorage to play the load—bearing role together with the surrounding rock.