浅埋平顶大跨隧道穿越流沙层暗挖施工技术

赵菁; 公宝兴

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隧道建设 >

2008 , Vol. 28 >Issue 5: 613 - 615

DOI: https://doi.org/B

施工技术

浅埋平顶大跨隧道穿越流沙层暗挖施工技术

赵菁 ,
公宝兴

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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

赵菁（1974—）|男|1997年毕业于同济大学建筑专业|本科|工程师|主要从事地下工程施工研究工作。

收稿日期: 2007-09-12

修回日期: 2008-10-17

网络出版日期: 2009-11-25

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Excavation Technology of Shallow Tunnel with Longspan
and Flattop in Quicksand Stratum

DIAO Jing ,
GONG Bao-Xin

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1. Shanghai Tunnel Engineering Co., Ltd., Shanghai 200000, China|
2. Shijiazhuang Railway Academy, Shijiazhuang 050043, China

Received date: 2007-09-12

Revised date: 2008-10-17

Online published: 2009-11-25

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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。

关键词： 富水砂层; 浅埋暗挖隧道; 地表沉降

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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 . DOI: B

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.

Key words： waterrich sand stratum; mined tunnel with shallow cover; ground surface settlement

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