地铁下穿创业立交桥桩基托换施工技术研究

Study on Technology of Pile Foundation Underpinning Road Overpass in Subway Construction

中文关键词:轨道交通  桩基托换  数值分析  施工监测

英文关键词:pile foundation underpinning  overpass  numerical analysis  civil construction

中文摘要:

      在城市轨道交通中，地下工程往往需要穿越上部建筑物，而城市中建筑物大多采用桩基础形式，隧道线路虽可进行局部的优化，但仍受规划和总体线路的限制，这样，进行桩基托换往往是最好的选择方案。以深圳地铁5号线创业路立交桥为例，详细介绍了创业路立交桥桩基托换的设计、三维数值分析、施工工艺、以及施工工程中监测数据的情况，可为类似的地铁施工提供全过程的借鉴。

英文摘要:

      During the urban rail transit construction, it is inevitable for the underground engineering to underpass the upper structures. While most of the construction adopt the pile foundation, though the line planning could be optimized, it is hard to change too much for limitation of the general planning and the general line planning. So pile foundation underpinning is a good program for such constructions. In this paper, Chuangye Road overpass of Shenzhen Metro Line 5 is taken for study, it describes in detail the design, numerical analysis, construction techniques and the monitor data of the construction. It could be referenced for other such metro construction.