We study the effect of roots of alder trees on soil reinforcement and slope stabilization. Two types of soil, i.e. Marl and Clayey soils and alders of three ages are considered. The slope stability is studied according to the tree indices based on tree age and soil type. The effect of root reinforcement on slope stability is considered by an additional cohesion. The stability analyses are carried out by the FEM. We perform parameter studies considering tree age, soil type and surcharge. The results indicate that soil type is effective on cohesion. The results also showed that with increasing age of trees from 7 to 15 years, the amount of additional root cohesion increased and with the increase of the age of trees to 20 years this amount slightly decreased. Also, with regard to a constant slope geometry, the type of soil and the uniform surcharge pressure, 7-year-old trees have shown better performance in slope stabilization. It has been observed that as the age of alder trees grows, although the amount of additional root cohesion increases, however, due to increased surcharge pressure, the overall slope stability factor decreases.

中文翻译：

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考虑树木和根系钢筋重量的边坡稳定性分析

我们研究了桤木根系对土壤加固和边坡稳定的影响。考虑了两种类型的土壤，即 Marl 和 Clayey 土壤以及三个年龄的桤木。根据树龄和土壤类型的树木指数研究边坡稳定性。根部加固对边坡稳定性的影响通过附加内聚力来考虑。稳定性分析由 FEM 进行。我们根据树龄、土壤类型和附加费进行参数研究。结果表明土壤类型对黏聚力有效。结果还表明，随着树龄从 7 年增加到 15 年，额外的根系凝聚力增加，而随着树龄增加到 20 年，这一数量略有下降。此外，对于恒定坡度几何，土壤类型和均匀的超载压力，7年生树在边坡稳定方面表现出更好的表现。已经观察到，随着桤木树龄的增长，虽然额外的根系内聚力增加，但是，由于增加的超载压力，整体边坡稳定系数降低。