涨壳式中空预应力锚杆在TBM法隧洞施工中的应用和改进  

Application and Modification of Swelling Prestressed Bolts in a TBM Excavated Tunnel

作　　者：冯艺[1] 石钊 张照太 王勇[4] 

机构地区：[1]二滩水电开发有限责任公司,成都610072 [2]二滩国际工程咨询有限责任公司,成都610072 [3]北京振冲工程股份有限公司,北京100024 [4]杭州图强工程材料有限公司,杭州310008

出　　处：《现代隧道技术》2011年第1期160-164,共5页Modern Tunnelling Technology

摘　　要：在锦屏二级水电站引水隧洞围岩强烈至极强岩爆地段的支护施工中,对现场原使用的涨壳式中空预应力锚杆进行了适当的改进,以使其满足TBM快速施工的要求。改进后的锚杆安装迅速,起效快,在岩爆段和塌方段具有良好的实际应用效果。Considering the supporting work on a section of Jinping II Diversion Tunnel under extremely intensive rock burst geological condition,some appropriate improvements on the existing swelling pre-stressed bolts were performed so as to meet the requirements of rapid driving of TBM,i.e.such improved bolts need to be quickly installed and worked effectly when applied on rock burst and collapse sections.

关 键 词：TBM 引水隧洞 岩爆 涨壳式锚杆 

分 类 号：U455.71[建筑科学—桥梁与隧道工程]