摘要
交叉隧道中面临的最主要问题是修建隧道对既有隧道的影响以及自身近距离施工时的相互影响问题。针对大坪隧道与高九路立体交叉的复杂性,应用Ansys有限元对该工程的整体施工过程进行了三维数值模拟分析,得到了交叉隧道施工过程中的变形、应力分布、塑性区及锚杆轴力等关键参数的变化规律,为立体交叉隧道的安全快速施工提供了重要的参数。
The main problem of the tunnel crossing is that the constructing tunnel affects the constructed tunnel. In view of the complexity of the tunnel crossing of Daping and Gaojiulu tunnels, the total constructing progress of the tunnel crossing is analyzed with ANSYS 3 - D FEM and the change law of the distortion, stress, plastic zone and the inner force of anchor are got. The conclusions provide important parameters for the tunnel crossing construction.
出处
《地下空间与工程学报》
CSCD
2008年第5期887-891,978,共6页
Chinese Journal of Underground Space and Engineering
关键词
隧道
交叉
施工
力学效应
tunnel
crossing
construction
mechanical effect
