市政技术2024，Vol.42Issue(1)：154-161,191,9.DOI:10.19922/j.1009-7767.2024.01.154
超大直径盾构隧道穿越既有老旧建筑群的影响分析与监测
Analysis & Monitoring of Large Diameter Shield Tunnel Through Existing Old Buildings
梁志超 1王言然 1刘明高 1周长林1
作者信息
- 1. 北京市市政工程设计研究总院有限公司,北京 100082
- 折叠
摘要
Abstract
Based on Chunfeng Tunnel through existing Datan Building and No.2 and No.3 Customs staff dormitory buildings in Shenzhen,the deformation of these old buildings were analyzed during shield tunnel construction pro-cess by combining numerical analysis with on-site monitoring.The main impact area scope and settlement deforma-tion volume were discussed.The research results show that the numerical analysis can better reflect the impact;The field monitoring results show that the impact area of shield tunneling on the settlement(uplift)of buildings is about 40 m before and behind the buildings after the reinforcement of the sleeve raft pipe grouting stratum.The maximum settlement(uplift)value meets the requirements of the control value.That sleeve valve pipe pre-grouting reinforce-ment has obvious control effect on pile displacement and building group settlement.关键词
盾构掘进/数值模拟/现场监测/注浆加固/桩基Key words
shield tunneling/numerical simulation/on site monitoring/grouting reinforcement/pile foundation分类
交通工程引用本文复制引用
梁志超,王言然,刘明高,周长林..超大直径盾构隧道穿越既有老旧建筑群的影响分析与监测[J].市政技术,2024,42(1):154-161,191,9.
