天津建设科技2024，Vol.34Issue(2)：40-44,5.DOI:10.3969/j.issn.1008-3197.2024.02.011
旋喷桩加固隔离桩对既有桥梁变形控制研究
Research on Control of Existing Bridge Deformation Reinforcement of Isolated Foundation by Jetting Pile
张广乾 1李向阳 2吴景龙 1毕小勇2
作者信息
- 1. 中国建筑材料工业地质勘查中心陕西总队,陕西 西安 710003||西安建材地质工程勘察院有限公司,陕西 西安 710003
- 2. 中国建筑材料工业地质勘查中心陕西总队,陕西 西安 710003||陕西中祥基础工程有限责任公司,陕西 西安 710003
- 折叠
摘要
Abstract
In order to analyze the impact of underpass shield tunnel construction on the safety of bridge structure under the isolation measures of double-pipe high-pressure jet grouting piles,this study examines the strengthening mechanism employed in the construction of Yongguan High-Speed Viaduct′s water transmission tunnel in Guangdong.The analysis focuses on soil displacement,surface settlement,and pier deformation caused by shield tunnel construction.The findings indicate that:Rotary jet grouting piles as reinforcement measures ef-fectively control formation deformations resulting from tunnel construction,minimize soil disturbance during construction,and mitigate vertical displacement and settlement differences in bridge piers caused by tunnel-ing activities while meeting structural deformation requirements.Monitoring data corroborate numerical simu-lation results,guaranteeing the effectiveness of dual pipe rotary jet grouting piles as isolation measures for en-suring bridge safety and normal operation.关键词
双重管旋喷桩/盾构隧道/加固隔离/桥梁变形Key words
double pipe rotary jet pile/shield tunnel/reinforcement isolation/bridge deformation分类
建筑与水利引用本文复制引用
张广乾,李向阳,吴景龙,毕小勇..旋喷桩加固隔离桩对既有桥梁变形控制研究[J].天津建设科技,2024,34(2):40-44,5.
