摘要
随着城市建设的发展,作为暗挖法之一的矩形顶管施工技术得到了越来越多的应用。矩形顶管施工大多在建筑密集、市政管线复杂区域,对地面沉降变形非常敏感。研究矩形顶管施工过程中周边水土变化规律,对矩形顶管施工技术的进步具有现实意义。本文以上海轨道交通二号线张江高科站一号出入口工程为例,通过施工过程中孔隙水压、土压力、分层变形、地面沉降等的监测,分析了矩形顶管施工过程中周边水土的变化规律,为在环境复杂区域矩形顶管合理施工提供技术依据。
With the development of urban construction,rectangular pipe jacking technology has been more and more applications as one of tunneling method,most of rectangular pipe jacking are use in the areas of many buildings and many municipal pipelines,Settlement of the area is very sensitive,Therefore,the study of surrounding soil change law in the process of rectangular pipe jacking has far-reaching significance for further development of rectangular pipe jacking technology,This paper takes NO.1 entranceas of ZhangJiang high-tec station of Shanghai rail transit 2 line east development an example and finds out the change law of surrounding soil and water in the process of the rectangular pipe jacking construction by monitoring pore water pressure,land subsidence,layered settlement,soil pressure data,and provides scientific basis for controlling parameters of rectangular pipe jacking in complex environment.
关键词
暗挖法
矩形顶管
地面沉降
水土变化规律
tunneling method
rectangular pipe jacking
settlement of the area
change law of water and soil
