施工技术 2010年9月 50 CONSTRUCTION TECHNOLOGY 第39卷第9期 广州某矩形隧道下穿既有隧道设计与施工 王世君，叶雅图 (广州地铁设计研究院有限公司，广东广州510010) [摘盈]广州市珠江新城核心区市政立通项目旅客自动输送系统中央广场站一市民广场站向隧道下穿既有金稳 路随道，下穿经采用矿山法施工.本道下穿既有陋送，高道之向竖向无土：卫有陋道设有抗浮程 杆，新建腿道也需考总本身抗浮.综合考总，创性采用短形直随.洱细介绍了矿山法矩形腿道下穿脱有市 政随道的设计参数及关键施工技术.实践证明，施工过程时既有随道就动较小，取得良好的社会和轻清故益. [关键词]腿道工程：矿山法：短形腿道：下穿：设计：施工技术 [中分类号]U455.41 [支献柱识码]A [支章编每]1002-8498(2010)09-0050-04 Design and Construction of Rectangular Tunnel Under-crossing Existing Tunnel in Guangzhou Wang Shijun Ye Yatu Guangzhou Metro Design Research Institute Co. Lid.Guangzhou Guangdong 510010 China) Abstract:Mining method is adopted in the under-crossing segment between Central Square Station and Civil Station in the automatic people moving system of municipal traffic project in core district of Zhujiang New Town in Guangzhou.And the tunnel under-crosses the existing Jinsui Road Tunnel without soil at vertical direction between the two tunnel lines.Furthermore anti-floating anchors are set under the existing tunnel and anti-floating problem should be considered during the new tunnel construetion.Thus the new tunnel is designed as rectangular section.Design parameters and key construction technologies are introduced.It proves that the construction process has allowable influence on the existing tunnel and good social and economical benefits can be gained. Key words:tunnel engineering:mining method:rectangular tunnel:under-crossing:design: construction technology 1工程概况 为中砂、粗砂、乐石，级配不均，分布不均匀，含轻多粉、 广州市珠江新城旅客自动输送系统中央广场...
广州某矩形隧道下穿既有隧道设计与施工.pdf
