盾构隧道及其联络通道侧穿桥梁桩基影响分析  

Impact Analysis of the Shield Tunnel and Its Connected Aisle Passing Side Through the Pile Foundation of Bridge

作　　者：吴丽萍[1] 刘俊良 Wu Liping;Liu Junliang(Changchun Institute of Technology,Changchun,China)

机构地区：[1]长春工程学院,吉林长春

出　　处：《科学技术创新》2023年第26期136-139,共4页Scientific and Technological Innovation

摘　　要：本文以长春某盾构区间及其联络通道侧穿快速路高架桥桩基础项目为依托,利用MIDAS GTS NX有限元软件详细分析了隧道施工时联络通道中心线上方横向地表土体的沉降曲线特征,隧道施工对联络通道中心线上方横向地表土体的主要影响范围,桥墩及桩基的最大竖向位移随盾构隧道及其联络通道施工时的变化阶段数,盾构隧道施工影响桥墩及桩基的最大竖向位移变化的主要施工范围。应加强对隧道施工主要影响范围内的地表土体沉降、桥墩及桩基位移的监测,做好安全保护措施。The paper is based on the shield tunnel interval and its connected aisle passing side through expressway overpass pile foundation project in Changchun,MIDAS GTS NX finite element software is used to analyze in detail the characteristics of the transverse surface soil settlement curve above the center line of the connected aisle during tunnel construction,the main influence range of tunnel construction on transverse surface soil above the center line of connected aisle,the number of change stages of the maximum vertical displacement of the bridge piers and the pile foundations with the shield tunnel and its connected aisle construction,and the construction scope of shield tunnel which mainly affects the change of the maximum vertical displacement of the bridge piers and pile foundations.It is necessary to strengthen the monitoring of surface soil settlement,bridge pier and pile foundation displacement in the main influence area of tunnel construction,and do a good job in safety protection measures.

关 键 词：盾构隧道及其联络通道 桥梁桩基础 数值模拟 

分 类 号：U443.15[建筑科学—桥梁与隧道工程] U231.3[交通运输工程—道路与铁道工程]