深部巷道围岩变形失稳机理及其控制  

Mechanism and Control of Deep Roadway Surrounding Rock Deformation and Instability

作　　者：邢鲁义[1] 杨睿[2] 宋宗武[1] 

机构地区：[1]山东科技大学矿业与安全工程学院,山东青岛266590 [2]山东科技大学土木工程与建筑学院,山东青岛266590

出　　处：《煤矿安全》2016年第4期226-228,共3页Safety in Coal Mines

基　　金：国家自然科学基金资助项目(51379116;51574156);山东科技大学2015-2016年度研究生科技创新基金资助项目(YC150302)

摘　　要：基于深部矿井准备巷道围岩变形破坏机理的研究和分析,根据王家寨煤矿三采区下山的地质条件,对其采用高强高预紧力锚杆和锚索组合整体支护及时支顶和护帮,使薄层状顶板转化为"厚度大、刚度高的预应力夹持组合岩板",两帮应力峰值区随之向围岩深部转移,进而实现顶板与两帮的互保与共稳。Based on the research and analysis of deformation and failure mechanism of deep preparation roadway surrounding rock,according to the geological conditions of the third mining area of the Wangjiazhai Mine,the roof and the two sides should be overall and timely supported by the combination of bolts and cables with high strength and high pretension force,making the thin roof transfer a pre- stressed clamping combined rock board with large thickness and high rigidity. The stress peak area of two sides will be transferred to the deep surrounding rock,which makes the roof and two sides stable by protecting each other.

关 键 词：深部巷道 围岩变形 应力集中 整体支护 预紧力 地质条件 

分 类 号：TD325[矿业工程—矿井建设]