松软岩层内大断面硐室利用锚网喷、锚索、壁后注浆联合支护技术探讨

Combined Support Technology with Concrete Sprayed Anchored Net,Anchorage Cable and Backwall Grouting for Large Profile Underground Chamber in Soft Rock

介绍了根据硐室布置的岩层和地质条件及机电硐室设备布置的具体要求,神火煤电股份有限公司葛店煤矿双庙扩大区井底车场机电硐室(泵房、变电所)成功采用锚网、锚索、壁后注浆联合支护技术;实现了多次支护的抗压作用,保证了大断面机电硐室的有效施工,确保了机电设备的安全运行。

The original condition of the rock and the requirements of equipment deployment of mechanical and electronic chamber are introduced. By using the combined support technology of concrete sprayed anchored net, anchorage cable and backwall grouting in the mechanical and electronic underground chamber of Shuangmiao extending area of Gedian Mine, Shenhuo Coal and Electricity Joint - stock Company, the tunnel condition is effectively improved, the deformation of the surrounding rock is inhibited. The combined support effective resistant to compression function is realized and the mine pit safety in production is guaranteed.