摘要
TBM(隧道掘进机)施工受地质条件影响非常大,特殊地质条件下必须要以开拓性的思维,结合具体工况,创造性地解决具体问题。结合锦屏二级电站引水洞TBM施工实践,总结极强岩爆工况下的一种特殊的施工方法,即钻爆法施工导洞再TBM法扩挖成洞,取得了良好的效果,人员及设备安全得到了有效保障,TBM顺利通过极强岩爆洞段。
The influence of geological conditions on the construction of TBM is very large. When we use TBM in special geological conditions, we must develop our thinking combined with the specific conditions and solve specific problems crea- tively. Combined with the TBM construction in Jinping-II Hydroelectric Power Tunnel, we summarized a special construc- tion method in strong rock burst conditions, which was using drilling and blasting method in pilot tunnel and then using TBM to expand excavation. This method achieved good results, the safety of personnel and equipment had been effectively guaranteed and TBM passed the strong rock burst section successfully.
出处
《铁道建筑技术》
2016年第6期27-31,共5页
Railway Construction Technology
基金
中铁十八局集团有限公司2010年度科技发展计划项目(科研〈G2010-11〉号)
关键词
TBM
导洞扩挖
极强岩爆
释放应力
控制掘进
状态监测
TBM
expanding excavation for pilot tunnel
strong rock bursting
releasing stress
tunnelling control
condition monitoring
