基于有限元分析的新旧路基结合处不均匀沉降加筋防治技术应用研究

摘要

加筋防治技术在解决新旧结合路基不均匀沉降方面应用非常广泛.针对不同的加筋间距、单宽、单宽竖向刚度进行方案组合,利用有限元数值模拟手段对不同方案之间的处置效果进行分析和比较.结果表明:加筋对填土路堤的稳定系数和减小路堤顶面的沉降均有明显的改善效果;加筋间距对路堤稳定系数有较大影响,而筋材单宽刚度对其影响较小.%The reinforcement prevention technology is widely used in settle the problem of uneven settlement in new and old subgrade bonding area. This paper made solution assemblies targeting at different reinforcement spacing,single width,single width vertical stiffness,the effect of different solutions is analyzed and compared by means of finite element numerical simulation. The results show that the stability coefficient of the embankment and the settlement of the embankment are obviously improved by reinforcement; The reinforcement spacing has a great influence on the stability coefficient of the embankment,while the single width of the reinforcement has little effect on it.