树根桩加固边坡的稳定性分析与评价

Stability analysis and evaluation of slope reinforced with root piles

参考树根桩应用于托换工程的设计计算方法,根据树根桩的实际特征,详细地推导了树根桩加固边坡后树根桩与土均质化复合“土体”的本构模型,研究了树根桩应用于边坡加固后的应力场、位移场的变化及边坡的稳定性情况。最后,比较了两种本构模型在评价边坡稳定性方面的优缺点,得出采用复合本构模型评价树根桩加固边坡的稳定性是完全可行的。

According to the application of root piles to underpinning engineering and the intrinsic character of root piles, a composite constitutive model of root piles and soil is established in reinforcing slope. Some basic characters, such as change of stress and displacement fields, slope stability after reinforcing slopes and safety factor of slopes, are researched. At last, advantages and defects of two constitutive models are compared in evaluating slope stability. The results show that it is possible to adopt composite constitutive model to evaluate reinforcement of slope stability with root piles.