摘要
文章基于有限元方法深入分析高填方路基的稳定性,研究不同填筑高度对路基顶面及地基沉降的影响。通过建立详细的有限元模型,揭示了填筑高度增加时路基和地基顶部沉降量呈显著增加的趋势。研究结果表明,路基顶面的沉降量增长速度大于地基顶部,尤其是当填筑高度达到40 m时,沉降量差异达到最大。基于数值模拟结果,提出了一系列加固措施,包括使用地工合成材料、优化压实工艺和调整路基结构设计,以降低不均匀沉降和提高结构稳定性。此外,强调了长期监测和维护的重要性,旨在为高填方路基的设计、施工及维护提供参考,为高填方路基的稳定性评估与加固提供理论依据和技术支持。
Based on the finite element method,this paper deeply analyzes the stability of high fill subgrade,and studies the influence of different filling heights on the settlement of subgrade top surface and foundation.By establishing a detailed fi nite element model,it is revealed that the settlement of subgrade and foundation top increases significantly with the increase of filling height.The results show that the growth rate of settlement on the top of subgrade is greater than that on the top of foundation,especially when the filling height reaches 40 m,the difference of settlement reaches the maximum.Based on the numerical simulation results,a series of reinforcement measures are proposed,including the use of geosynthetics,optimization of compaction process and adjustment of subgrade structural design to reduce uneven settlement and improve structural stability.In addition,the importance of long-term monitoring and maintenance is emphasized,which aims to provide reference for the design,construction and maintenance of high fi ll subgrade,and provide theoretical basis and technical support for the stability assessment and reinforcement of high fill subgrade.
作者
杨家齐
YANG Jiaqi(Beijing Construction Branch of CCCC First Highway Engineering Co.,Ltd.,Tianjin 301700,China)
出处
《工程技术研究》
2024年第15期141-143,共3页
Engineering and Technological Research
关键词
高填方路基
有限元分析
路基沉降
结构稳定性
high fill subgrade
finite element analysis
subgrade settlement
structural stability
