Modelling hydro-mechanical reinforcements of plants to slope stability
Modelling hydro-mechanical reinforcements of plants to slope stability
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DOI：
10.1016/j.compgeo.2017.09.001
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发表时间：
2018-03-01
影响因子：
5.3
通讯作者：
Shao, W.
中科院分区：
文献类型：
--
作者：
Ni, J. J.;Leung, A. K.;Shao, W.
研究了植物加固对粗粒土边坡稳定性的影响，探讨了植物根部加固对粗粒土坡稳定性的相对贡献以及植物诱导基质吸力的水文效应。用一个数值模型模拟了机械固根和水文效应，包括不同根系构型下的蒸散量和根系引起的土壤持水曲线和导水率的变化。机械加固只有在根生物量最大的浅层才有效。水文加固在更深的深度(>；1米)更为显著，但由于根系引起的水力传导性的增加，这种作用可能会消失。(C)2017年作者。爱思唯尔有限公司出版。
The study investigates plant reinforcement to the stability of coarse-grained soil Slopes, exploring the relative contribution of mechanical root reinforcement and hydrological effects of plant-induced matric suction. A numerical model is used to capture both mechanical root reinforcement and hydrological effects, including evapotranspiration with different root architectures and root-induced changes in soil water retention curve and hydraulic conductivity. Mechanical reinforcement is effective only in shallow depths, where the most root biomass exists. Hydrological reinforcement is much more significant in deeper depths (>1 m), but this effect could vanish due to root-induced increase in hydraulic conductivity. (C) 2017 The Authors. Published by Elsevier Ltd.