地铁复杂地层盾构施工关键技术及稳定性自助控制研究

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关键词：南京某地铁；复杂地层；盾构施工；关键技术；稳定性控制中图分类号： TQ172.71+9.1 ;U459 文献标志码：A 文章编号：1001-5922（2025）12-0260-04

Research on key technology and stability control of shield construction in complex stratum of subway

WAN Zhengfei （Sichuan Shudao Electrification Construction Co.，Ltd.，Chengdu 61O213，China）

Abstract：This study focuses on the shield tunneling construction of the section between Xinzhuang Station and Municipal Government Station on Nanjing Metro Line3，where the geological conditions arecomplex and varied. The studythoroughly analyzed the key technicalaspects of shield tunneling construction，includingthe selectionof shield tunneling machines，precisecontrol during the propulsion process，andreal-time monitoringand correspondingadjustment strategies for geological changes.Atthe same time，combined with efectivecontrolof ground subsidence，implementation of anti-seepage and waterprof measures，and applicationof tunnel support and reinforcement technology，acomplete shield tunneling construction technology system suitableforthecomplex geological conditions of Nanjing Metro has been constructed.Bycomprehensively evaluating the construction efect，useful technical references and practical experience are provided forthe construction of subway projects under similar complex geological conditions，to ensure the construction safety，eficiency，and structural stability of subway projects.

Keywords： Nanjing subway;complex strata; shield construction;key technology;stability control

随着城市化进程的加速，地铁作为一种高效、便捷的大运量城市轨道交通方式，已成为城市公共交通的重要组成部分。（剩余4385字）