摘要
针对施工中的沈阳地铁工程,开展了超前小导管预注浆环向布置范围对地铁隧道开挖的影响分析。模拟不同的小导管环向布置,对围岩应力、隧道各监测点位移进行综合比较,确定出超前小导管合理布置范围,对类似隧道工程有较大参考价值。
Aiming at Shenyang metro under construction,analysis on the influence of layout of small pipes for advance grouting on metro tunnel excavation was conducted.Different layout options for small pipes in radial directions were simulated,and based on the comprehensive comparison of surrounding rock stresses and displacements on monitoring points of the tunnel,the rational layout was acquired.This may be of help to similar tunnel projects.
出处
《现代隧道技术》
EI
北大核心
2010年第5期54-58,78,共6页
Modern Tunnelling Technology
基金
国家自然科学基金重点资助项目(50434020)
关键词
超前小导管
地铁隧道
数值模拟
Advance small pipes for grouting
Metro tunnel
Numerical simulation
