摘要
通过对现有盾构掘进数值模拟方法的分析,提出了基于地层损失概念的有限元模拟方法,通过与理论和位移预测经验公式的对比,验证了其适用性,最后用于盾构穿越的分析当中,得出了若干运营隧道的变形规律,并与实际工程所显示的规律进行了对比。
Through analyzing the conventional approaches for the numerical simulation of shield tunneling, a new FE simulation method based on the concept of ground loss has been developed. Its applicability was verified by comparing with the displacements obtained by analytical method and empirical prediction. The method was applied to simulate a shield to under - cross the existing subway with some deformation regularities of the subway tunnel obtained, which were compared with those of some other projects.
出处
《现代隧道技术》
EI
北大核心
2007年第2期35-42,86,共9页
Modern Tunnelling Technology
关键词
盾构掘进
地层损失
穿越
运营隧道
数值模拟
Shield tunneling
Ground loss
Under - cross
Tunnels in operation
Numerical simulation
