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首页> 外文期刊>Proceedings of the institution of civil engineers >Stability of unsaturated soil slopes covered with Melastoma malabathricum in Singapore
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Stability of unsaturated soil slopes covered with Melastoma malabathricum in Singapore

机译：新加坡Mallastoma malabathricum覆盖的非饱和土质边坡的稳定性

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摘要

Past studies have shown that slopes covered with vegetation are less susceptible to rainfall-induced slope failures. This research was focused on the unsaturated properties of soil consisting of mangrove roots and their effects on the stability of an old alluvium soil slope during rainfall. Melastoma malabathricum was selected in this study since this mangrove is best suited for tropical climatic conditions. The results of laboratory tests indicated that the air-entry value and shear strength of soil with roots of M. malabathricum were higher than those of the soil without roots. The saturated permeability of the soil with roots was lower than that of the soil without roots. Numerical analyses indicated that the slope without M. malabathricum experienced significant decreases in the factor of safety during rainfall than the slope covered with M. malabathricum. M. malabathricum can thus be used as a vegetative cover for minimising rainwater infiltration in slope layers with a slope angle up to 35 degrees.
机译：过去的研究表明，植被覆盖的斜坡不易受到降雨引起的斜坡破坏的影响。这项研究的重点是红树林根系土壤的非饱和特性及其对降雨过程中旧冲积土坡稳定性的影响。由于该红树林最适合热带气候条件，因此在本研究中选择了黄褐变。实验室测试结果表明，有根马拉松根的土壤的空气进入值和抗剪强度高于没有根的土壤。有根土壤的饱和渗透率低于无根土壤。数值分析表明，降雨期间，没有马拉巴马拉松的斜坡的安全系数明显低于马拉巴马拉盖的斜坡。因此，M。malabathricum可以用作植物覆盖物，以最大程度地减少坡度最大为35度的坡层的雨水渗透。

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