邻近运营地铁的软土深大基坑微变形控制设计技术
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（同济大学建筑设计研究院（集团）有限公司， 上海 200092）[提要] 针对城市大型地下空间开发建设过程中面临的保护运营地铁安全的难题，从运营地铁隧道的构造特点和变形保护技术标准入手，根据软土深大基坑的地质及工程特点，针对基坑卸载变形产生和发展的不同成因机理，研究总结了一系列针对性强的软土深大基坑微变形控制设计技术，在工程应用中取得了良好的微变形控制成效，保障了城市地铁的安全正常运营。[关键词] 深大基坑； 变形控制； 地铁运营安全中图分类号：TU473.2 文献标识码：A 文章编号：1002-848X(2013)S2-0136-06作者简介：谢小林，硕士，工程师，Email: thank_xl@163.com。Deformation control technologies of deep and large soft clay excavations adjacent to operating metroXie Xiaolin(Tongji Architectural Design (Group) Co. , Ltd. , Shanghai 200092, China)Abstract: To guarantee the safety of operating metro is very important and difficult during the adjacent large underground complex construction. The structure characteristics and deformation control standards of metro tunnel were researched and summarized firstly, then base on the geologic characteristics of soft clay and the research of different origin lead to excavation deformation, a series of deformation control technologies of deep and large soft clay excavations were put forward. The effectiveness of these technologies has been proved by engineering practice. By application of these technologies, the safety of operating metro was guaranteed.
Keywords: deep and large excavation; deformation control; safety of operating metro
