华东交通大学学报2026，Vol.43Issue(2)：95-103,9.
引气剂在盾构隧道注浆材料中的应用研究
Study on the Application of Air Entraining Agent in Grouting Materials for Shield Tunnels
摘要
Abstract
To explore the effects of synchronous grouting on tunnel structure uplift and ground settlement,this study proposes an improved grouting material to optimize construction performance.Microbubbles were intro-duced into the grout by adding an air entraining agent,endowing the grout with lightweight,elastic and compress-ible properties.A combination of laboratory experiments and field monitoring was employed to evaluate the influ-ence of air entraining agent content on grout properties and construction performance.A lightweight,elastic,and compressible synchronous grouting material for shield tunnels based on the air entraining agent was developed.The study revealed that under identical grouting pressure and volume conditions,the lightweight grouting material effectively suppressed tunnel uplift during construction,reducing the average uplift from 8.7 mm to 0.1 mm.Addi-tionally,ground settlement over 14 d decreased from 10.5 mm to 4.5 mm,a reduction of approximately 57%.The air-inducing effect of the air entraining agent enables grout lightweighting and enhances its performance,sig-nificantly mitigating tunnel uplift and ground settlement during shield tunnel construction.This provides an effi-cient grouting material solution for tunnel engineering projects.关键词
盾构隧道/同步注浆/引气剂/浆液轻质化/弹性可压缩/浆液性能Key words
shield tunnel/synchronous grouting/air entraining agent/lightweight grout/elastic compressibility/grout properties分类
交通工程引用本文复制引用
邓文武,黄大维..引气剂在盾构隧道注浆材料中的应用研究[J].华东交通大学学报,2026,43(2):95-103,9.基金项目
国家自然科学基金项目(52378398,52078213) （52378398,52078213）
