| 大型过江隧道盾构始发冻结施工技术 |
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| 引用本文： | 韩晓明,唐晓鹏,季玉国. 大型过江隧道盾构始发冻结施工技术[J]. 探矿工程(岩土钻掘工程), 2012, 39(12): 72-75 |
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| 作者姓名： | 韩晓明 唐晓鹏 季玉国 |
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| 作者单位： | 中交第二航务工程局第三工程有限公司,中交第二航务工程局第三工程有限公司,上海建通工程建设有限公司 |
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| 摘 要： | 南京市纬三路过江通道盾构直径达14.93 m,盾构始发段地质条件复杂,地下水丰富,盾构始发风险巨大。为确保始发安全,盾构始发加固采取三轴水泥搅拌桩加垂直冻结相结合方法,有效防范了施工风险。详细介绍了该隧道盾构工程中始发端冻结施工技术。
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| 关 键 词： | 盾构 始发段 冻结加固 南京纬三路过江通道 |
Freezing Construction Technique of Launching Section of Shield in Large Cross-river Tunnel |
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| HAN Xiao-ming,TANG Xiao-peng and JI Yu-guo. Freezing Construction Technique of Launching Section of Shield in Large Cross-river Tunnel[J]. Exploration Engineering （Rock & Soil Drilling and Tunneling）, 2012, 39(12): 72-75 |
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| Authors: | HAN Xiao-ming TANG Xiao-peng JI Yu-guo |
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| Affiliation: | China Communications 2nd Navigational Bureau 3nd Engineering Co., Ltd.,China Communications 2nd Navigational Bureau 3nd Engineering Co., Ltd.,Shanghai Jiantong Engineering Consulting and Construction Co., Ltd. |
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| Abstract: | The diameter is 14.93 m in a shield project of river-crossing channel in Nanjing, where the geological conditions are complicated in launching section with abundant groundwater. To ensure the safety of the launching section, the combination of tri-axial cement mixing pile and vertical freezing were adopted. The paper introduced the freezing construction technique in launching section with the construction case. |
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| Keywords: | shield launching section freezing consolidation Weisanlu river-crossing channel in Nanjing |
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