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2008 年 9 月施工技术
第 37 卷Π第 9 期 CONSTRUCTION TECHNOLOGY 47
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罗湖~国贸区间重叠盾构隧道施工
王建山
(港铁轨道深圳有限公司,广东深圳 518000)
[摘要] 结合罗湖~国贸区间重叠隧道盾构施工,采用有限元方法分析了施工阶段重叠盾构隧道的相互影响,确定
了先施工下部左线隧道,对周边岩土进行注浆加固,再施工上部右线隧道,然后注浆加固的施工顺序2 2 。施工右线隧
道时对左线隧道位移和深层沉降进行监测并采取选点注浆、架设支撑的辅助保护措施。同时对右线隧道下卧层
, , 2
土体进行注浆加固,保证隧道稳定及减小隧道之间影响。 2
[关键词] 隧道工程;重叠隧道;盾构;施工技术
[中图分类号] U455 43 [文献标识码] A [文章编号] 1002 8498(2008) 09 0047 04
Construction of Overlap Shield Tunnel at Luohu~ Guomao Section
Wang Jianshan
( MTR Corporation ( Shenzhen) Co. , Ltd. , Shenzhen , Guangdong 518000 , China)
Abstract: Interaction of overlap shield tunnel is analyzed by finite element method based on construction of
Luohu~Guomao section. Then , the best construction procedure is determined , which is constructing lower left
tunnel and reinforcing its surrounding soil by grouting firstly , and constructing upper right tunnel and
reinforcing it by grouting secondly. During right tunnel construction , displacement and deep settlement of left
tunnel are monitored , and assistant protection measures are adopted including points grouting and erecting
supporting. At the same time , soil below right tunnel is reinforced by grouting method to keep stability and
reduce influence between tunnels.
Key words :tunnel engineer