Slope stability analysis of riverbank in Malaysia with the effects of vegetation

Razali, Irfan Haziq and Mohd Taib, Aizat and Norinah, A. R. and Abang Hasbollah, Dayang Zulaika and Md Dan, Mohd Firdaus and Ramli, Ahmad Bukhari and Ibrahim, Aniza (2023) Slope stability analysis of riverbank in Malaysia with the effects of vegetation. Physics and Chemistry of the Earth, Parts A/B/C, 129. ISSN 1474-7065

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Abstract

Malaysia has experienced several slope failures in the past and vegetation is one of the solutionsthat can help to increase the stability of slopes by preventing erosion and providing interlockingforces in the soil materials. This study investigates the effect of vegetation on riverbank slopestability in Malaysia. The analysis was conducted to capture the pattern of changes in terms of the factor of safety (FOS) of slopes. Using Plaxis, a total of 24 models were constructed consisting oftwo methods of modelling namely node-to-node anchor and geotextile , which act as vegetation.The modelling results show that the slope safety factor changed according to the addition ofvegetation to the slope. The existing slope conditions recorded a safety factor at the value of 2.97. a a b a b c d e f Share Cite The value then increased when plants were added by adopting the node-to-node anchor along thetop of the soil with the highest factor of safety value of 2.99. On the other hand, the factor of safetyof slopes with the application of geotextile also shows an increase of up to 3.185. Whereas for theslopes with the effect of rainfall, the factor of safety values dropped to 2.609 and increase to 2.96when vegetation was applied. This study indicates that vegetation can improve slope stability andthat the different types of roots can also affect slope behaviour.

Item Type:	Article (Journal)
Subjects:	T Technology > TA Engineering (General). Civil engineering (General)
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Engineering > Department of Civil Engineering
Depositing User:	Dr. Ahmad Bukhari Ramli
Date Deposited:	12 Feb 2025 11:15
Last Modified:	12 Feb 2025 11:15
URI:	http://irep.iium.edu.my/id/eprint/119258

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