| 高速铁路大断面隧道浅埋段软弱围岩施工方法优化研究 |
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| 引用本文： | 黄胜平.高速铁路大断面隧道浅埋段软弱围岩施工方法优化研究[J].铁道建筑技术,2012(6):58-62. |
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| 作者姓名： | 黄胜平 |
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| 作者单位： | 中国铁建十九局集团第七工程有限公司,广东珠海,519000 |
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| 摘 要： | 针对花甲山隧道浅埋段工程地质条件,采用数值计算和现场测试方法,分析了浅埋段软弱围岩采用CRD法和大拱脚台阶法施工时围岩位移变化规律,并将数值分析结果和现场测试数据进行对比。综合比较两种施工方法的施工工效、经济成本和施工安全等因素,提出花甲山隧道浅埋段建议采用大拱脚台阶法施工的结论,为相类似工程提供借鉴。
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| 关 键 词： | 隧道 大断面 软弱围岩 大拱脚台阶法 数值分析 |
The research on Construction Method Optimization for Large-section Tunnel in Weak Surrounding Rock of High-speed Railway |
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| Huang Shengping.The research on Construction Method Optimization for Large-section Tunnel in Weak Surrounding Rock of High-speed Railway[J].Railway Construction Technology,2012(6):58-62. |
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| Authors: | Huang Shengping |
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| Institution: | Huang Shengping(China Railway 19th Bureau Croup Co.Ltd.,Zhuhai 519000,China) |
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| Abstract: | In light of the engineering geological conditions on shallow buried section of HuaJia Mountain Tunnel,the numerical calculation and the field test method are used to analyze the displacement change rules in construction on shallow buried weak rock by CRD method and the big arch feet steps method and compare the results of numerical analysis and the field test data.By comparing the construction efficiency,economic cost and construction safety,and other factors of the two kinds of construction methods,the paper recommends the big arch foot steps method for the construction of the shallow buried section of HuaJia Mountain Tunnel,for reference the similar projects. |
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| Keywords: | tunnel large-sections weak surrounding rock big arch feet step method numerical analysis |
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