山东大学学报 (工学版) ›› 2021, Vol. 51 ›› Issue (1): 46-52.doi: 10.6040/j.issn.1672-3961.0.2020.340
李连祥1,2,张强1,2,石锦江3,刘嘉典1,2,侯颖雪1,2
LI Lianxiang1,2, ZHANG Qiang1,2, SHI Jinjiang3, LIU Jiadian1,2, HOU Yingxue1,2
摘要: 基于水平基床系数的变化提出“水平形变位移”这一概念,将隧道拱腰水平位移可分为三部分,利用PLAXIS 3D有限元软件进行分析,并拟合得到最大水平形变位移与基坑宽度、水平距离的关系公式。研究结果表明,水平形变位移随隧道与基坑水平距离的增加呈指数关系降低;当水平距离大于一倍基坑深度时不考虑基坑宽度的影响。本研究所推导的水平形变位移计算公式可用于计算临近基坑开挖的隧道水平收敛值、隧道拱腰的水平位移、隧道附近的水平基床系数。
中图分类号:
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