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中山路地下通道位于大连市中山路和五惠路的交汇处,共有3个出入口,分别下穿中山路、五惠路,结构极其复杂。针对中山路地下通道的特殊性,利用有限单元法分别建立了二维和三维计算模型,分析了主通道和三向交叉口处的力学特征,结果发现三向交叉口处箱涵受力较为复杂,且箱涵转角处有明显的应力集中现象,据此根据箱涵的受力特征给出了相应的改善措施。论文所得到的结论,可为今后类似条件下地下通道工程的设计和施工提供相应的参考。
The Zhongshan Road underground passage is located at the intersection of Zhongshan Road and Wuhui Road in Dalian City. It has 3 entrances and exits and underlies Zhongshan Road and Wuhui Road, respectively. The structure is extremely complicated. According to the particularity of the underground passage in Zhongshan Road, two-dimensional and three-dimensional calculation models are established respectively by finite element method. The mechanical characteristics of the main passage and the three-way intersection are analyzed. The results show that the mechanical stress of the box culvert at the three-way intersection is complex , And there is obvious stress concentration at the corners of the box culvert. Corresponding improvement measures are given according to the stress characteristics of the box culvert. The conclusions obtained in this paper can provide reference for the design and construction of underground passage projects under similar conditions in the future.