2011年4月上 施工技术 第40卷第338期 CONSTRUCTION TECHNOLOGY 81 浅埋暗挖车站大跨区间及重叠隧道施工技术 李少利，李丰果 (中铁随道集团三处有限公司，广东深圳512825) [摘要]对重庆轨道交通六号线光电园车站大跨区间及重叠段隧道施工组织及施工方法进行了总结.在只利用2 个工作通道的前提下，通过合理组织及信息化施工，安全、优质、高效地进行施工.对大跨隧道各分部工况进行了 安全性分析及各种参数的安全性评价.提出重叠段道先上（上部腿道上半断面）后下（下部隧道）开挖初支，后 施作下部二衬，再施作上部隧道下半断面开挖初支及上部隧道二衬的施工方法，减小了爆破振动对结构的影响，确 保了重叠隧道防水、二衬的整体性及耐久性. [关键词]浅埋暗挖：大跨区间；重叠隧道：爆破振动 [中图分类号]U455 [文献标识码]A [文章编号]1002-8498(2011)07-0081-04 Construction Technology of Shallow Subsurface Excavation Station Large Interval and Overlapping Tunnel Li Shaoli Li Fengguo Sanchu Co.Lud.China Railaray Tunnel Group.Shenshen Guangdong 512825 China) Abstract:Construction management and technology of Guangdianyuan station large interval and overlapping tunnel are summarized.Construction process is successful based on reasonable organization and information construction with two work channels.The authors make safety evaluation on various parameters under different construction conditions.Construction method of primary supporting first in upper part and then lower part.Then construct secondary lining and primary supporting in upper half section of upper tunnel and secondary lining in upper tunnel are constructed in the end.Construction methods of overlapping tunnel reduce effect of blasting vibration on structure and ensure the integrity and durability of waterproof and secondary lining. Key words:shallow subsurface excavation;large interval;overlapping tunnel:blasting vibration 1工程概况 1.1光电园车站 光电园车站全长201.70m 隧道高19.38m、宽 24.84m 开挖面...
浅埋暗挖车站大跨区间及重叠隧道施工技术.pdf
