地铁隧道下穿既有铁路施工时的地基加固分析  

Analysis of Ground Improvement during Subway Tunnel Construction Underpassing Existing Railway Lines

作　　者：黄雷 Huang Lei(Beijing Urban Construction Track Transit Construction Engineering Co.,Ltd.,Beijing 100000,China)

机构地区：[1]北京城建轨道交通建设工程有限公司,北京100000

出　　处：《建筑与装饰》2025年第6期187-189,共3页Construction & Decoration

摘　　要：地铁隧道下穿铁路施工是一项复杂且具有挑战性的工程任务,涉及地下工程和铁路运营的双重影响。为确保施工过程中安全性与施工质量,地基加固是关键措施之一。本文通过分析地铁隧道下穿既有铁路施工中的地基加固需求,评估传统与新型加固技术的适用性,重点探讨了注浆加固、桩基加固以及综合加固技术的应用效果和技术难点。研究结果表明,科学合理的地基加固方案能够有效保障铁路的稳定性,降低施工风险,提高施工效率。Subway tunnel construction underpassing existing railway lines is a complex and challenging engineering task,involving dual impacts on underground works and railway operations.To ensure safety and construction quality,ground improvement is one of the key measures.This paper analyzes the ground improvement requirements during subway tunnel construction underpassing existing railway lines,evaluates the applicability of traditional and new ground improvement technologies,and focuses on the application effects and technical difficulties of grouting reinforcement,pile foundation reinforcement,and integrated reinforcement technologies.The results indicate that a scientific and rational ground improvement plan can effectively ensure the stability of the railway,reduce construction risks,and improve construction efficiency.

关 键 词：地铁隧道 既有铁路 地基加固 注浆技术 桩基加固 施工安全 

分 类 号：TU7[建筑科学—建筑技术科学]