基于ABAQUS的某大桥桩基施工对邻近地铁隧道的影响研究  

Research on Influence of Pile Foundation Construction of a Bridge on Adjacent Metro Tunnels Based on ABAQUS

作　　者：贾立夫 JIA Lifu(Engineering Consulting and Design Research Institute,Northeast Forestry University,Harbin,Heilongjiang 150040,China)

机构地区：[1]东北林业大学工程咨询设计研究院,黑龙江哈尔滨150040

出　　处：《公路工程》2020年第4期147-151,共5页Highway Engineering

基　　金：黑龙江省运输厅科技项目(HLJ20162D08)。

摘　　要：为了研究某城市高架桥桩基施工对临近既有地铁隧道的影响,基于大型有限元软件ABAQUS建立了三维有限元模型,选取其106^#桥墩为研究对象,研究了关键剖面在桩基施工成孔、承台开挖和施加上部荷载3种工况下路面沉降、隧道拱圈沉降和水平收敛,并对数据变化规律和产生的差别进行了深入分析。该结论可有效指导施工并为相关工程提供借鉴。In order to study the influence of the pile foundation construction of an urban viaduct on an adjacent existing subway tunnel, a three-dimensional finite element model is established based on the large-scale finite element software ABAQUS. The 106~# bridge pier is selected as the research object. Pavement settlement, tunnel arch ring settlement and horizontal convergence under three conditions of hole formation, cap excavation, and application of upper load, and the in-depth analysis of the data change law and the resulting differences. The related conclusions in this paper can effectively guide construction and provide reference for related projects.

关 键 词：高架桥 桩基施工 有限元 地铁隧道 

分 类 号：U443.15[建筑科学—桥梁与隧道工程]