软弱底板动压影响巷道支护技术

Support Technology for Weak Floor Roadway Effected by Dynamic Pressure

淄博矿区某矿3#煤层的回采巷道就是典型软弱底板动压影响巷道,巷道变形以强烈底鼓和帮脚内移为主,针对此类巷道特点,结合现代围岩控制理论对软弱底板动压影响巷道变形破坏原因进行分析,提出能够有效控制围岩变形的支护技术方案;通过现场试验,该方案能够有效控制围岩变形。

The 3# coal seam roadway of a mine in Zibo Mining Area is a typical soft floor and dynamic pressure affected roadway, the roadway deformation with a strong floor heave and a shift within the foot. So, this article proposed an support technology solution to con- trol the deformation of the surrounding rock, based on the characteristics of such roadway and combined with modem control theory, the failure reasons for weak rock bottom dynamic pressure affected roadway are analyzed; through field trials, the program can effectively control the deformation of the surrounding rock.