臧小龙
    （上海市建设工程管理有限公司，上海200031）

[摘要] 基坑围护结构必须为规划地铁隧道预留穿越条件。经过方案比选，采用了短地下连续墙叠合长SMWI法桩的特殊围护形式。通过采取有针对性的技术措施，成功完成了基坑施工和穿越条件预留。
[关键词] 特殊围护；预留；盾构；深基坑

Comparing and application of special supporting structure for preparative of shield machine transit
Zang Xiaolong
( Shanghai Construction Engineering Administer Co.,Ltd., Shanghai 200031, China)

Abstract: The supporting structure of deep foundation must prepare the transit condition for programnung metro tunnel. Through comparing the projects, the special supporting structure that adopt short diaphragm wall and long SMW pile at the same time. Through adopting exactly technology, the construction of deep foundation and the preparative of metro transit were solved successfully.
Keywords: special supporting structure; preparative; shield machine; deep foundation pit