四川轻化工大学学报（自然科学版）2026，Vol.39Issue(1)：80-86,7.DOI:10.11863/j.suse.2026.01.09
硬塑状黏土地层盾构施工管片上浮影响因素分析
Analysis of Factors Affecting Segment Uplift During Shield Construction in Hard Plastic Clay Strata
摘要
Abstract
To address the problem of segment uplift in shield tunnels,a combined approach of numerical simulation and field monitoring is adopted in this study based on the Hefei Metro Line 7.The effects of the annular gap water level,tunnel burial depth,vertical curve radius,and grouting pressure on the uplift displacement are systematically analyzed.The results indicate that when the groundwater level in the annular gap is lower than 0.3 times the tunnel external diameter,the uplift of segments is relatively small;however,when the groundwater level exceeds 0.6 times the external diameter,the uplift becomes significant.With increasing tunnel depth,the uplift of segments decreases and eventually stabilizes beyond a certain depth.The effect of vertical curve radius on segment uplift is more complex and must be comprehensively evaluated in relation to geological conditions and construction parameters.Furthermore,the relationship between grouting pressure and segment uplift exhibits a U-shaped pattern:both excessively low and excessively high grouting pressures lead to larger uplift,whereas an appropriate grouting pressure range can effectively reduce segment uplift.关键词
管片上浮/数值模拟/隧道间隙水位/隧道埋深/竖曲线半径/注浆压力Key words
segment uplift/numerical simulation/gap water level/tunnel depth/vertical curve radius/grouting pressure分类
交通工程引用本文复制引用
席培胜,程积朋,张军,翟朝娇,周冠宇..硬塑状黏土地层盾构施工管片上浮影响因素分析[J].四川轻化工大学学报（自然科学版）,2026,39(1):80-86,7.基金项目
国家自然科学基金青年科学基金项目(52408351) （52408351）
