市政技术2024，Vol.42Issue(8)：136-141,149,7.DOI:10.19922/j.1009-7767.2024.08.136
冰水堆积体隧道掌子面稳定性及合理注浆加固参数研究
Study on Tunnel Face Stability and Reasonable Grouting Reinforce Parameters in Ice Water Accumulation
摘要
Abstract
Based on the ice water accumulation section of Milin tunnel in Linzhi City,Xizang Autonomous Region,the numerical models and without considering seepage are established to compare the relationship between relative extrusion deformation and strength reduction coefficient of tunnel face with different grouting reinforce parameters.The results show that under the above two conditions,the curve trend of different grouting parameters and tunnel safety factor is consistent.The tunnel safety factor increases with the increase of grouting thickness,transverse length of grouting and equivalent cohesive force and gradually tends to be stable.The permeability coefficient has little effect on the tunnel safety factor.However,the safety factor of tunnel face considering seepage is much less than that without considering seepage.关键词
冰水堆积体隧道/掌子面稳定性/合理注浆加固参数/渗流条件Key words
ice water accumulation tunnel/stability of tunnel face/reasonable grouting reinforce parameters/seepage condition分类
交通工程引用本文复制引用
高军,杨佳运,李鹏飞,关喜彬..冰水堆积体隧道掌子面稳定性及合理注浆加固参数研究[J].市政技术,2024,42(8):136-141,149,7.基金项目
国家自然科学基金(52278383) （52278383）
