武汉Ⅲ级阶地上紧临地铁站的深基坑工程设计与施工

摘要

重点介绍桩撑基坑支护在紧临地铁特殊环境下的应用，探索周边存在地铁施工环境的深基坑支护技术及降排水的设计方法，并分析总结桩撑支护在紧临地铁这一特定条件下运用的合理性，阐述地下水控制和位移速率控制对临近地铁基坑设计施工的重要性，可为类似工程基坑支护设计提供经验参考。%The authors introduce the application of pile-strut bracing support structure in the area where near the subway line. It explores the design methods of deep foundation pit support technology and dewatering near the subway construc-tion site,and analyzes the rationality of using pile-strut bracing support structure in this specific conditions that is in the area close to subway line. It also elaborates the importance to design pits and construction near the subway line through controlling the groundwater and displacement rate. The case has an important practical significance and implication on how to improve the support technology in similar projects.