吉林大学学报(工学版) ›› 2024, Vol. 54 ›› Issue (2): 506-515.doi: 10.13229/j.cnki.jdxbgxb.20220342
• 交通运输工程·土木工程 • 上一篇
韩笑1,2,3(),凌贤长1,2,3(
),田爽1,2,3,丛晟亦1,2,3
Xiao HAN1,2,3(),Xian-zhang LING1,2,3(
),Shuang TIAN1,2,3,Sheng-yi CONG1,2,3
摘要:
采用COMSOL Multiphysics有限元软件建立高铁有砟轨道路基三维注浆模型,以注浆压力、注浆深度、注浆下倾角度、注浆管间距为主要参数进行了数值模拟研究。研究结果表明:上表面通量可很好地表征冒浆情况,上表面通量与注浆压力具有显著正相关性,注浆压力每增大0.1 MPa,通量线性增大约0.05 kg/m2·s;注浆深度、注浆下倾角度、注浆管间距的增大会使表面通量减小;注浆压力对冒浆影响最为显著;采用袖阀管分段和施加上盖层的联合注浆方法能有效控制高铁路基注浆过程中的冒浆问题。
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