砂泥岩地层中大直径盾构隧道管片上浮问题及防治措施研究  

Mechanism of Segment Uplift and Prevention Measures for Large-Diameter Shield Tunnels in Sandstone-Mudstone Strata

作　　者：袁乾龙 包书海 陆志强 张家瑞 Yuan Qianlong;Bao Shuhai;Lu Zhiqiang;Zhang Jiarui(China Communications Construction Corporation Rail Transit Branch,Beijing 101100)

机构地区：[1]中国交通建设股份有限公司轨道交通分公司,北京101100

出　　处：《现代工程科技》2025年第3期49-52,共4页Modern Engineering Technology

摘　　要：砂泥岩地层因其非均质性及地下水渗透性,在盾构施工中易发生地层回弹、应力释放及沉降不足等问题,从而加剧管片浮力效应,进而威胁隧道结构的安全性与长期稳定性。通过理论分析与工程实践,深入探讨了注浆加固、预加固技术、地下水动态管理以及实时监测与反馈控制等具体措施,并结合重庆市轨道交通十五号线工程实例,提出了科学的施工协调与地层扰动控制技术路径,有效解决了砂泥岩地层中盾构隧道管片上浮问题。研究结果表明,合理的综合防治体系可显著减小浮力效应和地层变形的叠加影响,降低施工风险,提高隧道结构稳定性,同时为后续类似工程的设计与施工提供了重要的理论依据与实践指导。Due to the heterogeneity and groundwater permeability of sandy-mudstone strata,problems such as stratum rebound,stress release,and insufficient settlement often occur during shield construction,which exacerbates the buoyancy effect of the segments and threatens the safety and long-term stability of the tunnel structure.Through theoretical analysis and engineering practice,this paper explores specific measures,including grouting reinforcement,pre-reinforcement techniques,dynamic groundwater management,as well as real-time monitoring and feedback control.By combining the example of the Chongqing Metro Line 15 project,it proposes a scientific approach to construction coordination and stratum disturbance control techniques,effectively solving the segment buoyancy problem in sandy-mudstone strata.The research results indicate that a reasonable integrated prevention and control system can significantly reduce the combined impact of buoyancy effects and stratum deformation,lower construction risks,and improve tunnel structural stability.At the same time,it provides important theoretical and practical guidance for the design and construction of similar projects in the future.

关 键 词：隧道工程 砂泥岩地层 管片上浮机制 施工措施 

分 类 号：TU43[建筑科学—岩土工程]