雨水管线顶管施工对既有桥梁影响的安全性评估研究  

Research on Safety Assessment of the Impact of Rainwater Pipe Jacking Construction on the Existing Bridge

作　　者：郭曙光 GUO Shu-guang(Shenyang Municipal Engineering Desingn and Research Institute,Shenyang 110015,China)

机构地区：[1]沈阳市市政工程设计研究院有限公司,沈阳市110015

出　　处：《北方交通》2020年第11期40-44,共5页Northern Communications

摘　　要：以雨水干线穿越既有桥梁顶管工程实例,采用空间有限元程序MIDAS/GTS NX建立三维模型,模拟顶管法施工过程,计算桥梁桩基础附近土体沉降数值,对既有桥梁的安全性进行评估,为类似工程的安全性评估提供参考。Taking the pipe jacking project of rainwater trunk crossing the existing bridge as an example,the spatial finite element program MIDAS/GTS NX is used to establish a three-dimensional model to simulate the construction process of pipe jacking method,calculate the settlement value of soil mass near the pile foundation of the bridge,and evaluate the safety of the existing bridge,so as to provide reference for the safety assessment of similar projects.

关 键 词：顶管施工 既有桥梁 安全评估 

分 类 号：U447[建筑科学—桥梁与隧道工程]