高填方路堤的基本特征及边坡稳定性分析
Basic characteristics and slope stability analysis of high fill embankment
为了评估高填方路堤在不同条件下的安全性,针对某公路项目斜坡段的高填方路堤进行了稳定性分析。首先探讨了路堤的基本特征,并运用FLAC3D软件模拟了其在四种工况下的稳定性。结果表明,在初始设计状态下,路堤整体结构稳固,满足安全标准,能够有效抵御日常交通和环境条件带来的负荷。但在该地形条件下,边坡平台对稳定性提升的作用有限。在模拟雨水渗透导致填料饱和的情况下,路堤的稳定性显著下降,边坡滑移风险显著增加。为保障路堤的长期安全,为降低风险,建议从加固路堤、优化防排水系统、实施交通管理三方面采取处治措施。研究为高填方路堤的维护和加固提供了有力的依据。
To evaluate the safety of high-fill embankments under various conditions, a stability analysis was conducted on the slope section of a highway project. The study first examined the fundamental characteristics of the embankment and simulated its stability using FLAC3D software under four operational scenarios. Results indicated that under initial design conditions, the embankment maintained overall structural integrity meeting safety standards, effectively resisting loads from daily traffic and environmental factors. However, in this terrain, the slope platform provided limited stabilization benefits. When simulating rainwater infiltration leading to fill saturation, the embankment’s stability significantly deteriorated with markedly increased slope sliding risks. To ensure long-term safety and reduce risks, three remediation measures are recommended: embankment reinforcement, optimization of drainage systems, and traffic management implementation. This research provides a robust basis for the maintenance and reinforcement of high-fill embankments.
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