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.
国家科技期刊平台
NSTL
万方数据
