| 浅埋平顶大跨隧道穿越流沙层暗挖施工技术 |
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| 引用本文： | 赵菁,公宝兴.浅埋平顶大跨隧道穿越流沙层暗挖施工技术[J].隧道建设,2008,28(5):613-615. |
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| 作者姓名： | 赵菁 公宝兴 |
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| 作者单位： | 1. 上海隧道工程股份有限公司,上海,200000
2. 石家庄铁道学院,石家庄,050043 |
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| 摘 要： | 穿越富水砂层一直是浅埋暗挖隧道的难点。以深圳某交通隧道为依托介绍在地质以流砂层和淤泥质砂层为主、隧道结构为大跨度、平顶、浅埋和小曲线半径的情况下，采用一系列措施使隧道顺利贯通、并有效地控制地表沉降的施工实例。
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| 关 键 词： | 富水砂层 浅埋暗挖隧道 地表沉降 |
| 收稿时间： | 2007-09-12 |
| 修稿时间： | 2008-10-17 |
Excavation Technology of Shallow Tunnel with Long-span and Flat-top in Quicksand Stratum |
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| ZHAO Jing,GONG Baoxing.Excavation Technology of Shallow Tunnel with Long-span and Flat-top in Quicksand Stratum[J].Tunnel Construction,2008,28(5):613-615. |
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| Authors: | ZHAO Jing GONG Baoxing |
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| Institution: | 1. Shanghai Tunnel Engineering Co., Ltd., Shanghai 200000, China|
2. Shijiazhuang Railway Academy, Shijiazhuang 050043, China |
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| Abstract: | It is difficult for mined tunnel with shallow cover to cross water-rich sand stratum.Taking a tunnel in Shenzhen as an example,the paper introduces the construction case of large-span,flat-top,shallow buried and small curve radius tunnel successfully crossing stratum mainly consisting of quicksand and muddy sand.A series of measures taken during the tunnel excavation ensured the successful tunnel breakthrough and effective control of the ground surface settlement. |
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| Keywords: | water-rich sand stratum mined tunnel with shallow cover ground surface settlement |
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