摘要
"坑中坑"现象在基坑工程中普遍存在,但目前关于这一问题的理论研究开展有限,设计人员仅凭经验确定其影响范围,不少工程事故就是由于未对"坑中坑"进行合理设计或施工失误所致。该文分析了某工程因不按照设计工况开挖,导致开挖"坑中坑"时发生较大变形。在此基础上,通过大型有限元软件ABAQUS对"坑中坑"进行了定性分析;并通过简化模型,用已有的弹性力学解答给出了粗浅的量化结论。
The pit-in-pit appearance is very common in foundation pit engineering.There is a little study in this field.The engineers have to rely on the experience to determine its influence range.Many accidents are caused by the unsuitable design and construction for pit-in-pit.This paper analyzes the greater deformation in the excavation of pit-in-pit in a project because of not according to the design construction conditions.On this basis,the article qualitatively analyzes the pit-in-pit by the large finite element software ABAQUS,and gives the elementary quantization conclusion by the existing elastic mechanics solutions through the simplified model.
出处
《城市道桥与防洪》
2013年第8期339-343,401,共5页
Urban Roads Bridges & Flood Control
关键词
基坑
坑中坑
有限元
半空间问题
foundation pit,pit-in-pit,finite element,half space problem
