地铁风井深基坑支护方案设计及监测分析  

The Design and Monitoring Analysis of Deep Foundation Pit Support Scheme for Subway Ventilating Shaft

作　　者：沈逸飞 SHEN Yifei(State Key Laboratory of Bridge Intelligent and Green Construction,Wuhan 430000,Hubei,China;Wuhan Bridge and Building Works Supervision Co.,Ltd.,Wuhan 430000,Hubei,China)

机构地区：[1]桥梁智能与绿色建造全国重点实验室,湖北武汉430000 [2]武汉桥梁建筑工程监理有限公司,湖北武汉430000

出　　处：《凿岩机械气动工具》2025年第1期34-37,共4页Rock Drilling Machinery & Pneumatic Tools

摘　　要：为研究安全可靠的深基坑开挖方法,文章以武汉地铁12号线为例,对黄海路站—复兴村站区间风井深基坑的围护方案进行设计,并监测分析基坑和邻近线路。研究结果表明,在复杂环境下,深基坑采用地下连续墙进行围护,并配合全方位高压喷射工法(metro jet system,MJS)止水桩,效果显著;通过分段开挖、先挖后撑的全混凝土支撑支护,显著减少了开挖阶段对地层的扰动,有效控制了基坑及邻近线路的位移和沉降;采用智能化监测技术可以有效地对施工阶段进行监测,保证施工阶段的开挖安全和邻近地铁正常运营,研究内容可为类似工程提供参考。In order to study the safe and reliable deep foundation pit excavation method,this paper takes Wuhan Metro Line 12 as an example to design the enclosure scheme of deep foundation pit of ventilating shaft between Huanghai Road and Fuxing Village,and monitors and analyzes the foundation pit and adjacent lines.The results show that in the complex environment,the adoption of underground continuous wall for deep foundation pit enclosure and combined with Metro Jet System(MJS)water stop pile can have a remarkable effect;through the full concrete support by segmented excavation and first excavation and then support,the disturbance to the stratum during the excavation stage is significantly reduced,and the displacement and settlement of the foundation pit and adjacent lines are effectively controlled;the use of intelligent monitoring technology can effectively monitor the construction stage,ensure the excavation safety in the construction stage and the normal operation of the adjacent subway.The research content can provide reference for similar engineering.

关 键 词：地铁风井 深基坑 支撑方案 围护结构 

分 类 号：U455[建筑科学—桥梁与隧道工程]