深部软岩巷道超长锚杆-锚杆联合支护技术  

Combined Support Technology of Extra-long Bolting and Bolting in Deep Soft Rock Roadway

作　　者：李飞[1] 于明江[1] 马振凯[1] 

机构地区：[1]中国矿业大学(北京)资源与安全工程学院,北京100083

出　　处：《煤矿安全》2015年第6期77-80,共4页Safety in Coal Mines

摘　　要：为了解决深部软岩巷道支护问题,在赵固二矿11030工作面下顺槽这一典型深部软岩巷道进行了围岩变形规律研究和超长锚杆与围岩相互作用机理的分析,得出超长锚杆-锚杆联合支护更能适应巷道围岩的持续变形。在赵固二矿的工业性试验也表明,使用超长锚杆-锚杆联合支护技术后,顶板最大下沉量比原支护方案减少了34.6%,有效地控制了巷道后期的持续变形,使巷道围岩在较短时间内就趋于稳定。In order to solve the support problem in deep soft rock roadway,we research deformation law of surrounding rock and analyze of interaction mechanism of extra-long bolting and surrounding rock in crossheading of 11030 working face,the typical deep soft rock roadway of Zhaogu No. 2 Mine. It indicates that the combined support technology of extra-long bolting and bolting is more adaptable to continual deformation of surrounding rock. The industrial experiment in Zhaogu No. 2 Mine shows that,by using the support technology of long anchor bolt and anchor bolt,the biggest roof subsidence reduces by 34. 6% and the surrounding rock continual deformation in later stage is controlled efficiently. The surrounding rock becomes stable in short time.

关 键 词：深部软岩巷道 联合支护 超长锚杆 围岩变形 巷道支护 

分 类 号：TD353.6[矿业工程—矿井建设]