上方长距离基坑开挖引起的共线隧道变形研究

陈拴, 吴怀娜, 陈仁朋, 沈水龙, 刘源

Deformation of a Collinear Tunnel Induced by Overlying Long-Distance Excavation

CHEN Shuan, WU Huaina, CHEN Renpeng, SHEN Shuilong, LIU Yuan

表4 剪切变形与隧道最大上浮变形的占比

Tab.4 Ratio of shear deformation to the maximum uplift deformation of tunnel

工况 S/m w/mm ws/mm P/% 1-2 87 6.59 1.78 27.04 1-2 173 6.70 1.59 23.68 2-3 87 9.21 2.47 26.86 2-3 198 16.32 5.10 31.23 3-2 87 9.20 2.39 26.00 3-2 179 16.40 1.61 9.83 4-4 87 8.95 0.91 10.13 4-4 141 20.28 3.28 16.19 4-4 212 19.49 4.23 21.72 平均 21.41