岩土工程学报2025，Vol.47Issue(z2)：109-114,6.DOI:10.11779/CJGE2025S20007
考虑开洞影响的装配式竖井管片与内衬共同作用分析
Analysis of interaction between prefabricated vertical shaft and its lining structures considering impact of openings
摘要
Abstract
Prefabricated vertical shaft construction technology has significant advantages in urban areas due to its high construction efficiency,small construction site area and minimal environmental impact.When serving as jacking or shield tunneling wells,an additional layer of lining structure is often installed inside the shaft to ensure the safety of opening construction.A three-dimensional finite element model is established to analyze the joint mechanism between the prefabricated vertical shaft segments and the linings.Due to the weak connection between the vertical shaft segments,the connection between the segments is ignored in the model.The calculation results indicate that the bending moments of the segments and linings are approximately distributed according to their stiffness ratio.The maximum bending moment of the segments after opening is located near the opening and bottom of the well.Compared with the model which ignored the effect of segments,the bending moment of the lining considering the segments is only 56%to 76%of that without considering the segments.关键词
装配式竖井/盾构井/管片/内衬/内力Key words
prefabricated vertical shaft/tunneling well/segment/lining/internal force分类
建筑与水利引用本文复制引用
聂东清,陈龙强,翟之阳,徐进,胡宇飞,张龙..考虑开洞影响的装配式竖井管片与内衬共同作用分析[J].岩土工程学报,2025,47(z2):109-114,6.基金项目
上海建工集团股份有限公司重点科研项目(22YJKF-19) （22YJKF-19）
