（同济大学建筑设计研究院（集团）有限公司，上海 200092）

[摘要] 苏州地下空间项目为二层全埋式地下室框架结构，平面尺寸为190m×112m，采用有限元法对超长结构进行了详细的温度应力分析，并提出对于超长结构无缝设计的分析方法和解决方案；利用有限元法对挡土墙结构进行详细分析，提出挡土墙底部的双向受力特征，指出仅考虑单向受力时，底部偏于不安全；基础设计与基坑开挖整体考虑，提出对全埋式地下空间项目，平板式筏基具有更好的便利性和经济性。

[关键词] 超长结构;温度应力;基础设计

中图分类号：TU93⁺1      文献标识码：A      文章编号：1002-848X(2013)S2-0042-04

Design on all buried underground structure

Liu Tianluan

(Tongji Architectural Design(Group) Co., Ltd., Shanghai 200092, China)

Abstract: Suzhou underground space structure project is a frame structure, and the plan size is 190m×112m. Thermal stress analysis of the plate was proposed with the FEM method. The analytical method and solution were proposed to solve ultra long structure. Based on the result of the wall FEM, it points out that the wall near the bottom has bi-directional feature, the unidirectional action result is unsafe. Foundation design was considered with the foundation pits. It points out that slab-foundation has more economy and convenience.

Keywords: ultra long structure; thermal stress; foundation design