摘要
随着城市基础设施建设快速推进,市政地下道路工程规模不断扩大,深基坑支护技术已成为保障工程安全和周边环境稳定的关键。文章以某地下道路工程为例,系统分析了复杂地质条件下深基坑支护结构的设计要点与施工工艺,重点探讨了钻孔灌注桩、高压旋喷桩、格构柱、冠梁及钢支撑等支护构件的施工技术,以及分层分段开挖、联合降水方案和实时变形监测反馈调控方法,以期为同类市政工程深基坑施工提供技术参考和实践指导。
With the rapid development of urban infrastructure construction and the continuous expansion of municipal underground road engineering,deep foundation pit support technologies have become the key to ensuring the engineering safety and surrounding environment stability.Taking an underground road project as an example,this paper systematically analyzes the key design points and construction process of deep foundation pit support structure under complex geological conditions,and focuses on the construction technologies for support components such as bored pile,high-pressure jet grouting pile,lattice column,crown beam and steel support,as well as layered and segmented excavation,combined with dewatering scheme and real-time deformation monitoring feedback control method,in order to provide technical reference and practical guidance for deep foundation pit construction in similar municipal engineering.
作者
唐鹏
TANG Peng(China Railway 22nd Bureau Group Rail Engineering Co.,Ltd.,Beijing 102400,China)
出处
《工程技术研究》
2025年第19期55-57,共3页
Engineering and Technological Research
关键词
深基坑支护
钻孔灌注桩
高压旋喷桩
变形监测
deep foundation pit support
bored pile
high-pressure jet grouting pile
deformation monitoring
