快速路地道下穿地铁高架区间影响分析

Analysis on Influence of Expressway Tunnel Passing under Subway Viaduct

为了保证安全和满足使用要求,地铁工程对沉降、变形要求非常严格,新建市政地道下穿地铁高架区间必须考虑基坑开挖的影响,进而制定相应的监测和保护措施。以青岛风河快速路地道下穿青岛地铁13号线高架区间为案例,分析了基坑开挖对高架结构的影响分析,为青岛地区上土下岩地质条件下的类似工程提供了有益参考。

In order to ensure the safety and to meet the using requirement,the settlement and deformation are very strictly required for the subway engineering.The impact of foundation pit excavation must be considered in the newly built municipal tunnel passing under the subway viaduct,and then the corresponding monitoring and protection measures should be formulated.Taking the tunnel of Tsingtao Fenghe Expressway passing under the viaduct of Tsingtao Metro Line 13 as an example,the influence of excavation on the viaduct structure is analyzed,which provides a useful reference for similar projects under the geological conditions in Tsingtao Area.