| 新宝塔山隧道浅埋偏压段施工及监控量测分析 |
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| 引用本文： | 李寿福,展宏跃,王起才.新宝塔山隧道浅埋偏压段施工及监控量测分析[J].铁道建筑技术,2010(3):69-74. |
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| 作者姓名： | 李寿福 展宏跃 王起才 |
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| 作者单位： | 1. 中铁二十一局集团有限公司,兰州,730000
2. 兰州交通大学土木工程学院,兰州,730000 |
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| 摘 要： | 浅埋偏压段及不良地质条件给隧道施工造成安全隐患,也是造成整条隧道施工失败的主要问题。新宝塔山隧道部分处于浅埋偏压段,讨论了该段施工设计和施工工艺,包括地表注浆加固围岩、超前管棚注浆锚杆预支护、段台阶开挖法、喷锚挂网支护和围岩监控量测信息反馈与预测预报等,为隧道的顺利贯通提供了有力保障。
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| 关 键 词： | 浅埋偏压 监控量测 地表注浆 施工 |
Shallow Bias Section Construction,Analysis and Application of Monitoring and Measurement in New Baota Mount Tunnel |
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| Li Shoufu,Zhan Hongyue,Wang Qicai.Shallow Bias Section Construction,Analysis and Application of Monitoring and Measurement in New Baota Mount Tunnel[J].Railway Construction Technology,2010(3):69-74. |
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| Authors: | Li Shoufu Zhan Hongyue Wang Qicai |
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| Institution: | Li Shoufu1,Zhan Hongyue2,Wang Qicai2(1. China Railway 21th Bureau Group Co. Ltd.,Lanzhou 730000,China,2. School of Civil Engineering,Lanzhou Jiaotong University,China) |
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| Abstract: | Shallow bias section and adverse geological conditions lead to hidden dangers into tunnel construction, and are also the key in determining the success of the whole tunnel. New Baota Mount Tunnel is at the shallow bias section. This paper elaborates its construction design and techniques, including surrounding rock reinforcement with surface grouting, anchor rod pre-support of advance pipe roof grouting, sectional step excavation method, shotcrete rockbolt mesh support, as well as surrounding rock monitorin... |
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| Keywords: | shallow bias monitoring and measurement surface grouting construction |
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