深厚软土区邻近地铁深基坑工程关键技术研究

Research on Key Technologies for the Implementation of Deep Foundation Pit Projects in Deep Soft Soil Areas Adjacent to Subways

文章以深厚软土分布区邻近地铁隧道深基坑工程的成功实施为背景,基坑支护设计时按照地铁隧道保护要求进行专项设计,并对项目实施过程中可能涉及的各种工况进行计算分析。工程采取增设地下连续墙、合理布置内支撑、信息化指导施工等技术手段,确保了基坑工程的顺利实施,有效控制了相邻地铁隧道的变形,为类似工程提供参考与借鉴。

This paper takes the successful implementation of a deep foundation pit project of the neighbouring metro tunnel in a deep soft soil distribution area as the background.The pit support design is carried out in accordance with the requirements of the protection of the metro tunnel for special protection design,and the calculation and analysis of all kinds of working conditions that may be involved in the process of the project implementation are carried out.In this project,additional underground diaphragm walls are adopted,the reasonable arrangement of internal support,information-based construction guidance and other technical means ensure the smooth implementation of the foundation pit project,and effectively control the deformation of the neighbouring metro tunnel,providing reference for similar projects.