考虑流固耦合的公路高边坡稳定性分析与加固措施研究

Analysis on Stability and Study on Reinforcement Measures of Highway High Slope Considering Fluid-structure Interaction

摘要:

高边坡失稳是渗流场与应力场共同作用下的结果，降雨入渗下边坡含水量增大而土体抗剪强度减小， 对于非饱和状态下土体的抗剪强度利用Fredlund公式进行分析，建立流固耦合的分析模型，并通过Soilworks软件对工程边坡进行分析，评估加固效果，指导设计制定合理的加固方案，以保障运营安全、减少人员伤亡和经济损失。

Abstract:

The instability of high slopes is the result under the combined action of seepage field and stress field. The shear strength of slope soil is attenuated under rainfall infiltration. The water content of slope increases, and the shear strength of soil decreases under the rainfall infiltration. The shear strength of unsaturated soil is analyzed by Fredlund formula. The analysis model of fluid-structure interaction is established. The engineering slope is analyzed by Soilworks software. The reinforcement effect is evaluated. The rational reinforcement scheme is guided to design and formulate in order to ensure the operational safety and to reduce the casualties and economic losses.