地铁明挖区间施工对临近高架桥墩台的影响分析

Inf luence of Metro Cut-and-Cover Section Excavation on Abutments and Piers of Adjacent Bridge

以重庆地铁环线渝鲁车站至五里店车站区间临近冲压厂高架桥的明挖区间基坑工程为背景,利用大型通用有限软件ANSYS建立三维有限元模型。通过模拟计算,得到基坑开挖对临近高架桥墩台的影响,并分析了基坑开挖对桥墩和桥台位移变化规律,最后根据分析结果提出相应的施工建议。

Based on the metro cut-and-cover section excavation project of Chongqing Rail Transit Circle Line between Yulu Station and Wulidian Station near Chongyachang Bridge,the software named ANSYS was used to establish three-dimensional finite element model.From the simulation, it offers the influence of excavation on abutments and piers, which can analysis the change law of the displacement,according to the result, there are some advices about the construction.