运营地铁上方箱涵施工数值模拟分析

摘要:

本文以苏州高铁新城民四南路桥梁工程为例,通过建立三维有限元模型分析了箱涵结构分段开挖、分序吊装的地表变形及地铁结构的变位,结果表明分段施工各节段开挖及回填量少,对地铁结构的变形扰动影响较小,确保了下卧地铁结构安全,可为类似工程设计与施工提供借鉴和参考。

Abstract:

Taking the box culvert of Minsi South Road in Suzhou high-speed rail town as an example, this paper analyzes the surface deformation and the displacement of the metro by establishing a three-dimensional finite element model. The results show that the excavation and backfilling of each section in the segmented construction has little influence on the deformation disturbance of the subway structure, which ensures the safety of the underlying metro.The result can provide reference for similar engineering design and construction.