矩形顶管沉井下沉过程中的变形分析  

Analysis on Deformation of Rectangular Pipe Jacking Open Caisson during Sinking Process

作　　者：成丹[1] 张东岩[1] 

机构地区：[1]天津市市政工程设计研究院,天津市300051

出　　处：《城市道桥与防洪》2016年第7期177-180,20,共4页Urban Roads Bridges & Flood Control

摘　　要：沉井作为一种基坑支护结构,变形是一项重要的安全指标,现行国家、地方性规范未给出沉井变形计算的方法。结合天津市某市政顶管工程,采用MIDAS有限元软件对沉井下沉过程中最不利工况进行应力、变形分析,并给出沉井变形计算的建议公式。As a supporting structure of foundation pit, the deformation of open caisson is an important safety indexes. There are no the deformation calculation methods of open caisson in the current state and local standards. Combined with a municipal pipe jacking project in Tianjin, the MIDAS finite element software is used to analyze the stress and deformation of open caisson during sinking process under the worse operating condition. The proposed formula of calculating the deformation of open caisson is given.

关 键 词：矩形沉井 有限元分析 变形分析 

分 类 号：TU992.24[建筑科学—市政工程]