市政技术2025，Vol.43Issue(6)：157-166,10.DOI:10.19922/j.1009-7767.2025.06.157
基于三元结构体系的盾构隧道穿越既有桥梁变形沉降全线控制方法研究
Research on the Full Line Control Method for Deformation and Settlement of Shield Tunnel Crossing the Existing Bridges Based on the Ternary Structure System
薛哲 1王月2
作者信息
- 1. 北京城建七建设工程有限公司,北京 100029
- 2. 北京市政路桥股份有限公司,北京 100045
- 折叠
摘要
Abstract
That shield tunnels crossing the existing bridges will affect the stability of the surrounding soil and poten-tially threaten the safety of the bridge.Based on the dynamic coupling mechanism of the ternary structure system of shield-soil-bridge,a full line control method for deformation and settlement was explored during the construction of new shield tunnels crossing the existing bridges.Successfully applied in the South-to-North Water Diversion Pro-ject,the method enabled pre-construction parameter optimization,real-time monitoring and feedback during con-struction,post-construction stability assessment,and auxiliary reinforcement,ensuring the safety of both the new tunnel and existing bridge structures.Additionally,the influence of the pile-tunnel positional relationship on the displacement and deformation of bridge piles was investigated by numerical simulation,providing a reference for tunnel construction projects crossing existing bridges in future.关键词
盾构隧道/下穿施工/既有桥梁/三元结构体系/全线控制/试验段Key words
shield tunnel/underpass construction/the existing bridge/ternary structure system/full line control/the test section分类
交通工程引用本文复制引用
薛哲,王月..基于三元结构体系的盾构隧道穿越既有桥梁变形沉降全线控制方法研究[J].市政技术,2025,43(6):157-166,10.
