动压巷道变形分析及围岩控制技术  

Deformation analysis of roadway subjected to dynamic pressure and technique of surrounding rock control

作　　者：鞠明和[1] 孙玉亮[1] 陈志锋[1] 周健[1] 李冬伟[1] 潘凡[1] 

机构地区：[1]中国矿业大学矿业工程学院,江苏徐州221116

出　　处：《辽宁工程技术大学学报（自然科学版）》2014年第6期731-735,共5页Journal of Liaoning Technical University (Natural Science)

基　　金：中央高校基本科研业务费专项资金资助项目(2013DXS02)

摘　　要：针对受采动影响的巷道变形破坏严重,对动压巷道变形起决定作用的围岩破裂区进行理论分析,得到塑性区和破裂区交界处的径向应力和切向应力公式,作为围岩应力大小的参考依据;同时得到破裂区和塑性区半径公式,作为动压巷道围岩控制方案设计的依据,并结合锚杆支护理论,得到动压巷道围岩控制方案.最终在鹤壁五矿动压巷道工程试验中得到运用,巷道变形得到明显控制,说明锚杆加锚索加喷射混凝土的控制方案合理有效.Aiming at the problem that severely deformed and damaged roadway affected by mining gives a significant impact on mine safety, this paper did theoretical analysis on the decisive role of broken rock zone of roadway subjected to dynamic pressure, and obtained the formula at the junction of the radial stress and tangential stress between plastic zone and fracture zone as the reference of the size of the rock stress. This study also obtained the radius formula of rupture zone and plastic zone as the basis of the surrounding rock control scheme in roadway subjected to dynamic pressure, and the control scheme of roadway subjected to dynamic pressure combined with the bolting theory. Finally, the scheme was applied in the roadway subjected to dynamic pressure of NO.5 coal mine in Hebi, and the roadway deformation has been significantly controlled. The result of study shows that the control scheme of anchor＋anchor cable＋shotcrete is reasonable and effective.

关 键 词：动压巷道 围岩控制 破裂区 巷道变形 支护设计 

分 类 号：TD353[矿业工程—矿井建设]