| 北塬隧道浅埋软弱围岩段施工技术 |
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| 引用本文： | 贾中太.北塬隧道浅埋软弱围岩段施工技术[J].铁道建筑技术,2014(5):101-104. |
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| 作者姓名： | 贾中太 |
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| 作者单位： | 中铁二十局集团第三工程有限公司,重庆401121 |
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| 摘 要： | 北塬隧道DK6＋ 200～ DK6＋ 700段围岩呈破碎浅埋、土石分界、节理发育的分布情况.通过明洞浅埋段增做工作面的可行性分析,介绍了在复杂不良地质条件下,隧道明洞浅埋段与主洞施工方案的确定与优化,施工工艺与几项关键施工技术.简述了地质超前预报与监控量测措施,为同类工程施工提供了借鉴.
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| 关 键 词： | 隧道 软弱围岩 浅埋 三台阶法 监控量测 |
Construction Technique for Beiyuan Tunnel in Weak Surrounding Rock of Shallow-buried Section |
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| Jia Zhongtai.Construction Technique for Beiyuan Tunnel in Weak Surrounding Rock of Shallow-buried Section[J].Railway Construction Technology,2014(5):101-104. |
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| Authors: | Jia Zhongtai |
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| Institution: | Jia Zhongtai (China Railway 20th Bureau Group Co. Ltd. , Chongqing 401121, China) |
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| Abstract: | The surrounding rocks of DK6 ＋ 200 ＋ DK6 ＋ 700 section of the Beiyuan tunnel is characterized by broken shallow-buried, separation of soil and rock, joint development. Through the analysis of the feasibility of adding workface to the shallow open cut tunnel, the paper introduces determination and optimization of shallow-buried section and main tunnel construction scheme of open cut tunnel in the complicated geological conditions as well as the construction technology and key construction techniques. The advanced geological prediction and monitoring and measurement are explained to provide references for similar engineering construction. |
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| Keywords: | tunnel weak surrounding rock shallow-buried three steps method monitoring and measurement |
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