1 research outputs found
Rainfall-induced hydraulic properties for unsaturated soil in Klang valley
Klang Valley area is one of the most landslide-prone areas in Malaysia, especially at
Hulu Kelang, Kuala Lumpur. The area has been frequently hit by landslide since 1990s. Soil
instability is agreed by researchers occurred due to high precipitation and long duration of
rainfall which cause property damage and leading to injury and fatality. Slope failure is also
triggered by the antecedent rainfall leads to infiltration of rainwater into soil. Therefore, study
of rainwater infiltration is vital to relates soil โ water interaction and soil behaviour for varies
of rainfall intensities and duration for unsaturated soil. The objective of this paper is to
determine and compare soil water characteristic curve (SWCC) which is one of the soil
hydraulic parameters for Klang Valley area. Samples were collected to determine the soil
hydraulic properties at Hulu Kelang area, Universiti Kebangsaan Malaysia (UKM) and
Universiti Pertahanan Nasional Malaysia (UPNM) campuses. SWCC was obtained by pressure
plate extractor apparatus experiment and the analysis was performed using Van Genuchten
equation. Result of parameters obtained shows significant differences of soil at Hulu Kelang
area compared to soils at UKM and UPNM campuses. This research is relevant to supports
national slope master plan 2009-2023