[摘要] 近年来，随着我国铁路、公路及市政建设事业的高速发展，越来越多的隧道工程投入建设。由于地质条件的限制及地下空间的综合开发利用，在工程中不可避免地产生近距离交叉隧道。鉴于新建隧道施工会对既有隧道造成不利影响，同时也增加了新建隧道施工的难度，结合某城市隧道上跨厦深铁路隧道的工程设计实例，着重对比分析新建隧道两种施工方案，探讨交叉隧道段加固方案以及监控量测方案，对近距离隧道施工具有一定的指导意义。
[关键词] 近距离交叉隧道；施工方案；隧道加固；监控量测
中图分类号：TU451    文献标识码：A  文章编号：1002-848X(2012) Sl-0868-03

    Construction scheme research of cross section between newly built tunnel and existing tunnel
    Zhao Lezhi¹, Qiao Lei²
    (1 Beijing General Municipal Engineering Design & Research Institute, Beijing 100082, China;
    2 Urban Construction Design & Research Institute, Beijing 100120, China)

Abstract: In recent years, more and more tunnel projects are invested in construction with the high speed development of railways, lughways and municipal construction in China. Close cross tunnel is inevitably arisen in the project due to geological conditions and comprehensive development and utilization of under-ground space, which will cause adverse affect to existing tunnel and thus increase difficulties to the new tunnel construction. A design example of a city tunnel up-crossing Xiamen Shenzhen railway tunnel was presented, and two construction programs of which were comparatively analyzed to explore the cross-tunnel section reinforcement programs as well as the measurement monitored programs, which will provide certain guiding significance to close cross tunnel construction.
Keywords: close cross tunnel; construction program; tunnel reinforcement; monitoring measurement