| 西秦岭隧道TBM掘进步进施工技术 |
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| 引用本文： | 李南川.西秦岭隧道TBM掘进步进施工技术[J].隧道建设,2011,31(6):749-754. |
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| 作者姓名： | 李南川 |
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| 作者单位： | 中铁隧道集团二处有限公司,河北三河065201 |
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| 摘 要： | 为了解决二次步进中TBM就位、安装步进设备中遇到的一系列技术难题,以兰渝铁路西秦岭隧道TBM施工为例,通过采用TBM在钻爆加大断面内模拟正常掘进、材料运输车编组优化、仰拱安装机改造等手段,解决了TBM步进设备(滑行支撑架)位置确定、步进材料供应、仰拱拼装效率低等难题,顺利、高效地实现了TBM二次步进作业。
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| 关 键 词： | 西秦岭隧道 TBM施工 步进技术 |
| 收稿时间： | 2011-10-12 |
TBM Stepping Technology： Case Study on West Qinling Tunnel |
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| LI Nanchuan.TBM Stepping Technology： Case Study on West Qinling Tunnel[J].Tunnel Construction,2011,31(6):749-754. |
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| Authors: | LI Nanchuan |
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| Institution: | LI Nanchuan(The 2nd Engineering Co.,Ltd.of China Railway Tunnel Group,Sanhe 065201,Hebei,China) |
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| Abstract: | There are a series of technical problems in TBM positioning and stepping device installing in TBM secondary stepping in the construction of West Qinling tunnel on Lanzhou-Chongqing railway.The normal boring is simulated by means of TBM in tunnel section enlarged by drilling and blasting method,the organization of the material delivery trains is optimized and the invert segment installing machine is modified.In the end,the determination of the position of the sliding supporting frame,the supply of the construction materials and the invert segment installing efficiency are guaranteed,which ensures the efficiency of TBM secondary stepping. |
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| Keywords: | West Qinling tunnel tunneling by TBM stepping technology |
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