软弱破碎岩体巷道的支护设计及应用  

Support design for roadways with vulnerable and broken rock mass and its application

作　　者：贾住平 章海象 程文文[3] 侯俊[3] 

机构地区：[1]贵州职业技术学院 [2]贵州锦丰矿业有限公司 [3]长春黄金研究院

出　　处：《黄金》2017年第12期27-30,共4页Gold

摘　　要：根据岩体质量分类法和地质力学分类法,确定锦丰金矿软弱破碎岩体的RMR和Q值,提出采用湿喷混凝土+树脂锚杆+管缝式锚杆+金属网的联合支护方案,并依据Barton支护理论,确定锚杆长度、锚杆间距、喷浆厚度。详细介绍了喷锚网支护的工艺过程及2种不同断面规格的标准支护方案。现场应用结果表明,该种联合支护方案针对软弱破碎岩体巷道具有良好的支护效果。According to the rock mass quality classification and geological mechanics classification,the paper determined the RMR and Q values of the vulnerable and broken rock mass in Jinfeng Gold Mine and proposed the support plan combining wet shotcrete,resin bolt,split-set bolt and metal mesh.Based on Barton support theory,the bolt length,intervals between bolts and shotcrete thickness were decided.The process of shotcrete-bolt-mesh support was elaborated as well as 2 other standard support plans for different section specifications.Field application showed that the combined support plan performed well in supporting roadways with vulnerable and broken rock mass.

关 键 词：软弱破碎岩体 岩体质量分类法 地质力学分类法 巷道支护 湿喷混凝土 喷锚网支护 

分 类 号：TD353[矿业工程—矿井建设]