摘要
用理论解析和自适应有限元法研究了超欠挖对隧道稳定性的影响，结果表明：隧道超欠挖的存在及其沿设计轮廓的不均匀分布造成的开挖轮廓的凹凸不平，将引发隧道周围岩体中的局部应力集中。
This paper studies the effects of overbreak and underbreak on the stability of tunnel with elastic theory and adaptive FEM. The results show that the existence of tunnel overbreak and underbreak and the uneven allocation of overbreak and underbreak on tunnel contour,will cause stress concentration in surrounding rock.Some basic measures for reducing stress concentration are suggested.
出处
《西南交通大学学报》
EI
CSCD
北大核心
1996年第6期577-582,共6页
Journal of Southwest Jiaotong University
关键词
超欠挖
有限元法
应力分析
隧道
施工
overbreak and underbreak
adaptive FEM
stress analysis
