唐玉宏，杨  明，吴  渭，李林虎
（南京市市政设计研究院有限责任公司，南京210008）

[摘要] 目前，许多城市采用地下过街道作为交叉路口人流交通组织的主要形式，以减少对行车的干扰，提高道路的通行能力。结合实际工程，对地下过街道结构设计的结构选型、基础设计、计算、分缝、裂缝验算等内容进行了探讨和实践，提出了建议。
[关键词] 地下过街道；结构设计；沉降控制桩；裂缝宽度

Primary study of underpass structure design
Tang Whong, Yang Ming, Wu wei, Li Linhu
(Nanjing Municipal Design and Research Institute Co., Ltd., Nanjing 210008, China)

Abstract: At present, many cities adopt underpass to organize people flow at cross, decreasing the disturbance to traffic, increasing the ability of transit. The author discusses the structure design of underpass about choice of structure type, foundation, analysis, slit setting and the computation about crack width was discussed, and some advices on it were given according to the practice.
Keywords: underpass; structure design; creep pile; crack width