| 浅谈孤石及上软下硬特殊地层盾构施工风险及对策 |
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| 引用本文： | 刘培洪.浅谈孤石及上软下硬特殊地层盾构施工风险及对策[J].铁道建筑技术,2014(9):18-20. |
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| 作者姓名： | 刘培洪 |
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| 作者单位： | 中铁十一局集团城市轨道工程有限公司,武汉430074 |
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| 摘 要： | 以东莞市轨道交通R2线2309标盾构区间为依托,分析了盾构在孤石及上软下硬地层中掘进的施工风险;通过采用提前破碎基岩、预设好换刀加固点和合理的掘进模式及参数等,妥善解决了该地层中的施工难题。
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| 关 键 词： | 上软下硬地层 盾构掘进 风险对策 孤石 |
Discussion on the Risk and Countermeasures for Shield Construction in Boulder and Soft and Hard Stratum |
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| Liu Peihong.Discussion on the Risk and Countermeasures for Shield Construction in Boulder and Soft and Hard Stratum[J].Railway Construction Technology,2014(9):18-20. |
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| Authors: | Liu Peihong |
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| Institution: | Liu Peihong (China Railway 11^th Bureau Group Co. Ltd. , Wuhan 430074, China) |
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| Abstract: | Based on the example of Bid 2309 of R2 line of Dongguan City Rail Line,the paper analyzes the construction risk of shielding in solitary stone and soft under the hard strata excavation.It properly solves the construction difficulties by advanced rock crushing,presetting blade change point and reasonable tunneling model and parameters. |
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| Keywords: | soft under hard formation shield tunneling risk countermeasures boulder |
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