岩土工程学报2026，Vol.48Issue(z2)：43-47,5.DOI:10.11779/CJGE2026S20043
考虑机-土相互作用附加荷载对地表变形影响的解析研究
Analytical study on the influence of additional load induced by shield-soil interaction on ground surface deformation
宋奇昱 1张孟喜 1吴惠明 2蒋鹏程 1戴治恒3
作者信息
- 1. 上海大学力学与工程科学学院,上海 200444
- 2. 上海隧道工程股份有限公司,上海 200032
- 3. 上海公路桥梁(集团)有限公司,上海 200433
- 折叠
摘要
Abstract
Considering the influence of shield machine-soil interaction on additional loads during shield tunneling,this study investigates the characteristics of ground surface deformation under shield loads during both linear and curved tunneling based on the Mindlin solution.The effects of factors such as machine-soil relative displacement,the distribution coefficient of cutterhead normal pressure,and shield dimensions on surface deformation characteristics were analyzed.The results indicate that:(1)Whether in linear or curved tunneling,the ground surface in front of the shield cutterhead exhibits heave deformation,while the area behind the cutterhead shows settlement deformation.(2)As the asymmetric distribution coefficient of the additional cutterhead normal support pressure increases,the axis of symmetry of the surface cross-sectional deformation curve gradually deviates from the shield axis,with the most significant deviation observed when the coefficient reaches 0.5.(3)An increase in shield radius leads to a more pronounced deformation caused by friction,and the difference between the deformation induced by friction and that induced by support pressure also widens accordingly.关键词
机-土相互作用/附加支护力/盾周摩擦/掘进方式/地表变形Key words
shield-soil interaction/additional support force/shield skin friction/tunneling method/ground surface deformation分类
建筑与水利引用本文复制引用
宋奇昱,张孟喜,吴惠明,蒋鹏程,戴治恒..考虑机-土相互作用附加荷载对地表变形影响的解析研究[J].岩土工程学报,2026,48(z2):43-47,5.
