污水管道明挖施工对临近高架桥墩台的影响分析  

Influence analysis of sewage pipeline open-cut construction on adjacent viaduct pier

作　　者：杨海鹏 侯威 乔云男 

机构地区：[1]陕西建科岩土工程有限公司,陕西西安710082

出　　处：《陕西建筑》2022年第9期5-9,共5页Shaanxi Architecture

摘　　要：以某污水管下穿合杭铁路段工程为背景,基于三维有限元计算软件Plaxis3D建立了三维有限元模型。通过模拟计算,得到了明挖区间段基坑开挖对临近高架桥墩和承台以及桥梁下部桩基的影响,并分析了基坑开挖作用下,桥墩和桥台以及桩基的位移变化规律,为涉铁浅基坑工程的设计与施工提供一定的参考与借鉴。A three-dimensional finite element model was established based on three-dimensional finite element software Plaxis3D for a sewage pipe underpassing Hehang railway section.Through the simulation calculation,the influence of foundation pit excavation in the open-cut interval on the adjacent viaduct pier,abutment and the pile foundation at the bottom of the bridge is obtained,and the displacement variation law of the pier,abutment and pile foundation under the action of foundation pit excavation is analyzed.Finally,according to the calculation results,some suggestions are put forward for the construction of the open-cut interval.

关 键 词：明挖区间 桥墩 桥台 桩基 位移变化 

分 类 号：TU4703[建筑科学—结构工程]