刘志宏
    (广州市设计院，广州510620)

[摘要] 通过广州珠江新城核心区市政交通项目，介绍了地下空间开发对下方盾构隧道的影响。提出对已有的盾构隧道采用密排桩+盖板（梁）结构型式进行保护的方案，模拟计算该方案施工过程盾构隧道发生的位移变化并与实际监测结果对比，证实该保护方案是可行的。
[关键词] 地下空间；盾构隧道；旅客自动运送系统；分析
中图分类号：TU911    文献标识码：A  文章编号：1002-848X(2011) S2-0395-04

    Analysis and study of the influence of underground space exploitation on existing underground structure
    Liu Zhihong
    ( Guangzhou Design Institute,  Guangzhou 510620,  China)

Abstract: By the introduction of municipal transportation project in Pearl River New Town Central District, the article demonstrates the impact of the underground space'8 development on the underneath shield-structure tunnnel. The protection measure to the existed shield-structure tunnel by the close pile plus cover board was presented, as well as the contrast between the displacement change during the construction and the testing result was done. The protection measure is comfirmed to be effective.
Keywords: underground space; slueld tunnel; auto tourist transitting cystem; study