摘要
针对现有基坑支护计算理论的缺点,运用FLAC3D对西安市某深基坑在无支护条件下的开挖过程进行了数值模拟,分析了基坑的变形和失稳机理,确定出基坑的破坏模式。据此,对原基坑支护方案进行优化,优化方案又用FLAC3D进行了模拟验证,结果表明优化方案是可行的,同时也证实了FLAC3D可以用来对深基坑支护进行优化。
In view of the shortcoming of existing calculating theory of foundation pit support, FLAC3D is applied to simulate excavation of the deep foundation pit without retaining in Xi＇an city, analyze the deformation and failure mechanism of the foundation pit and ascertain its fracture type. Based on these results, the optimized design seheme for the foundation pit is proposed,whieh is also confirmed feasible by FLAC3D to prove the seherae. At the same time,the results indicate that FLAC3D, as a numerical simulation tool, is suitable for optimizing design of foundation pit.
出处
《平顶山工学院学报》
2007年第3期47-50,共4页
Journal of Pingdingshan Institute of Technology
关键词
FLAC3D
深基坑支护
数值模拟
破坏模式
FLAC3D
deep foundation pit support
numerical simulation
fracture types
